SERVICE MANUAL HAMAMATSU, JAPAN 1.51K-166 Printed in Japan 2000.02 PA 011494 CONTENTS SPECIFICATIONS ................................................................................3 PANEL LAYOUT ..................................................................................7 CIRCUIT BOARD LAYOUT ................................................................. 10 DIMENSIONS .................................................................................... 10 BLOCK & LEVEL DIAGRAM .............................................................. 11 DISASSEMBLY PROCEDURE .......................................................... 12 LSI PIN DISCRIPTION ........................................................................ 14 IC BLOCK DIAGRAM ......................................................................... 15 INSPECTION...................................................................................... 16 PARTS LIST CIRCUIT DIAGRAM CIRCUIT BOARDS www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 2 EMX620 IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated. WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components and failure of the product to per form as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service repre sentative. IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authoriza- tion, certification, recognition of any applicable technical capabilities, or establish a principal- agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefor, inevitable and changes in specification sre subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division. WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus). IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical / electronic and / or plastic (where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and / or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL / ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder / flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3 EMX620 SPECIFICATIONS General Specifications 135 W/8 ohm @0.5 % THD at 1 kHz (SPEAKERS OUT) Maximum output power 200 W/4 ohm @0.5 % THD at 1 kHz (SPEAKERS OUT) 175 mW/40 ohm @0.5 % THD at 1 kHz (PHONES OUT) Frequency response 20 Hz–20 kHz +1 dB, –3 dB @1 W output into 8 ohm (SPEAKERS OUT) 20 Hz–20 kHz +1 dB, –3 dB @+4 dB output into 10 k ohm (MAIN OUT, MONITOR OUT, EFFECT OUT) Total harmonic distortion Less than 0.5% @20 Hz–20 kHz, 100 W output into 4 ohm (SPEAKERS OUT) Less than 0.3% @20 Hz–20 kHz, +14 dB output into 10 kohm (MAIN OUT, MONITOR OUT, EFFECT OUT) –124 dB equivalent input noise, –68 dB residual output noise (SPEAKERS OUT) –88 dB residual output noise (MAIN OUT, MONITOR OUT) –79dB (83 dB S/N) Master level control: nominal level Hum & noise (MAIN OUT, MONITOR OUT) Channel level controls: minimum (Average, Rs=150 ohm) –69 dB (73 dB S/N) Master level control: nominal level (with 20 Hz–20 kHz BPF) (MAIN OUT, MONITOR OUT) 1 channel level control: nominal level –75 dB (79 dB S/N) All channel level controls: minimum (EFFECT OUT) –69 dB (73 dB S/N) 1 channel level control: nominal level (EFFECT OUT) 86 dB CH IN (Lo-Z) to SPEAKERS OUT (CH1–4) 66 dB CH IN (Lo-Z) to MAIN OUT, MONITOR OUT (CH1–4) 66 dB CH IN (Lo-Z) to EFFECT OUT (CH1–4) Maximum voltage gain 48 dB CH IN (Lo-Z) to REC OUT (CH1–4) (PAD: OFF) 56 dB CH IN (Hi-Z) to MAIN OUT, MONITOR OUT (CH1–4) 26 dB LINE IN to MAIN OUT 26 dB AUX IN to MAIN OUT 22 dB TAPE IN to MAIN OUT 46 dB INST IN to MAIN OUT Crosstalk at 1 kHz –65 dB adjacent input, –65 dB input to output +/-15 dB Maximum Input channel equalization HIGH 10 kHz shelving * LOW 100 Hz shelving * * Turn over/roll-off frequency of shelving: 3 dB below maximum variable level. Meters 5 points LED Meter (–10, –5, 0, +3, +6 dB) MAIN OUT Graphic equalizer 7 bands (125, 250, 500, 1k, 2k, 4k, 8k Hz) MAIN OUT +/-12 dB Maximum Internal digital effect 3 types (Vocal, L Hall, S Hall) Phantom power +15 V is supplied to electrically balanced inputs for powering condenser microphones via 2.4 kohm current limiting/isolation resisters. Limiter Comp. : THD >= 0.5 % (SPEAKERS) LIMIT indicator Turn on. : THD >= 0.5 % (SPEAKERS) Protection circuit POWER switch on/off mute (Power amp) DC detection Temp (Heatsink Temp >= 90°C) Foot switch DIGITAL EFFECT MUTE : on/off USA and Canada: 120 V AC 60 Hz Power requirement Europe: 230 V AC 50 Hz Other: 240 V AC 50 Hz Power consumption 110 W Dimensions (WxHxD) 497 x 275 x 275 mm Weight 13 kg www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 4 EMX620 Input Specifications Input connectors PAD Actual load Nominal Input level Connector impedance impedance Sensitivity *1 Nominal level Max. before cliping type CH INPUT (Lo-Z) ON 3 kohm 50–600 ohm Mics –62 dB (0.616 mV) –50 dB (2.45 mV) –20 dB (77.5 mV) XLR-3-31 (CH1–4) OFF 3 kohm 600 ohm Lines –32 dB (19.5 mV) –20 dB (77.5 mV) +10 dB (2.45 V) type *2 CH INPUT (Hi-Z) ON 10 kohm 50–600 ohm Mics –52 dB (1.95 mV) –40 dB (7.75 mV) –10 dB (245 mV) Phone jack (CH1–4) OFF 10 kohm 600 ohm Lines –22 dB (61.6 mV) –10 dB (245 mV) +20 dB (7.75 V) (TRS)*2 LINE IN (CH5)(1–2) 10 kohm 600 ohm Line –22 dB (61.6 mV) –10 dB (245 mV) +20 dB (7.75 V) Phone jack *3 INST IN (CH6)(1–2) 470 kohm 1 kohm –42 dB (6.16 mV) –30 dB (24.5 mV) 0 dB (0.775 V) Phone jack *3 AUX IN 10 kohm 600 ohm Line –22 dB (61.6 mV) –10 dB (245 mV) +20 dB (7.75 V) Phone jack *3 TAPE IN (1–2) 10 kohm 600 ohm Line –22 dBV (79.4 mV) –10 dBV (316 mV) +17.8 dBV (7.76 V) Phono jack *1. Sensitivity is the lowest level that can produce an output of +4 dB (1.23 V) or the nominal output level when the unit is set at maximum gain. (All level controls are at maximum position.) *2. Balanced. (T= HOT, R= COLD, S= GND) *3. Unbalanced. * 0 dB= 0.775 Vrms, 0 dBV= 1 Vrms. Output Specifications Output connectors Actual source Nominal Output level Connector type impedance impedance Nominal Max. before cliping SPEAKERS OUT (A, B) 0.1 ohm 4/8 ohm Speaker 37.7 W/4 ohm 200 W/4 ohm Phone jack MAIN OUT 600 ohm 10 kohm Lines +4 dB (1.23 V) +20 dB (7.75 V) Phone jack MONITOR OUT 600 ohm 10 kohm Lines +4 dB (1.23 V) +20 dB (7.75 V) Phone jack EFFECT OUT 600 ohm 10 kohm Lines +4 dB (1.23 V) +20 dB (7.75 V) Phone jack PHONES OUT 35 ohm 40 ohm Phones 33 W 175 W Phone jack REC OUT (1, 2) 600 ohm 10 kohm Lines –10 dBV (316 mV) +10 dBV (3.16 V) Phono jack * PHONE JACKS are unbalanced. * 0 dB= 0.775 Vrms, 0 dBV= 1 Vrms. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 5 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 6 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 7 EMX620 PANEL LAYOUT Control Panel 1. HIGH & LOW EQ control 2. MONI control 3. EFFECT control 4. LEVEL control 5. PAD switch (1-4 only) 6. VOCAL, L. HALL, S.HALL switches 7. DIGITAL EFFECT ON switch & indicator 1. Channel Section 2. DIGITAL EFFECT Section www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 8 EMX620 15. EFFECT RTN 16. MASTER control 8. Graphic equalizer 9. EFFECT RTN control 10. AUX IN control 11. TAPE IN 12. MASTER control 13. Level meter 14. LIMITER indicator 3. MAIN Section 4. MONI Section 5. POWER Indicator, PHANTOM Switch & Indicator 17. POWER indicator 18. PHANTOM switch www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 9 EMX620 1. Hi-Z, Lo-Z (inputs 1-4) 2. LINE 1 & 2 (input 5) 3. INST 1 & 2 (input 6) 4. EFFECT OUT jack 5. FOOT SW jack 6. AUX IN-INPUT TO MAIN jack 7. TAPE IN-INPUT TO MAIN jacks 8. REC OUT-OUTPUT jacks 9. MAIN-OUTPUT jack 10. PHONES-OUTPUT jack 11. MONITOR-OUTPUT jack 1. POWER Switch 2. SPEAKERS A & B 6. Input/Output Panel Input/Output Panel www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 10 EMX620 CIRCUIT BOARD LAYOUT DIMENSIONS www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 11 EMX620 BLOCK & LEVEL DIAGRAM KEC-92473 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 12 EMX620 DISASSEMBLY PROCEDURE 1. Front Panel Assembly 1-1 Remove the six (6) screws marked [30a]. The Front panel assembly can be removed. (fig, 1) 2. MIX Circuit Board After removing the front cover, remove the follow- ing screws. Each circuit board can then be re- moved. Circuit Boards and Unit Ref.No. Screw Qty Rear Panel [R40] Bind Head Screw SP 3.0X8 MFZN2Y (EG330290) (fig.3) 6 PWR 1/3 Circuit Board [R30] Bind Head Tapping Screw-B 3.0X10 MFZN2BL (EP600140) (fig.4) 7 [R35] Bind Head Tapping Screw-B 3.0X6 MFZN2BL (EP600230) (fig.4) 1 [R38] Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190) (fig.4) 2 PWR 2/3 Circuit Board [R110] Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) (fig.3) 2 [R150] Power Switch Knob MX12/4 (VU859000) (fig.3) 1 PWR 3/3 Circuit Board [R110] Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) (fig.3) 1 [B] Nut (fig.3) 2 Power Transformer [60] Bind Head Screw 4.0X8 MFZN2BL (EG340360) (fig.1) 4 (Fig.1) Front View Rear View Inside View Circuit Boards and Unit Ref.No. Screw Qty Front Panel [P50] Knob MX-BLUE/D-GRAY (VU860300) (fig.2) 8 MIX Circuit Board [P60] Knob MX-GREEN/D-GRAY (VU860200) (fig.2) 12 [P70] Knob ORANGE/D-GRAY (VV625800) (fig.2) 7 [P80] Knob N-GRAY/D-GRAY (VU859700) (fig.2) 9 [A] Nut (fig.2) 14 [P90] Bonding Tapping Screw-B 3.0X8 MFZN2BL (VN413300) (fig.2) 8 [P40] Hexagonal Socket Screw-P 3X25 MFZNBL (V3289800) (fig.2) 13 3. Raer Panel Assembly 3-1 Remove the six (6) screws marked [30b]. The Raer panel assembly can be removed. (fig, 1) NOTE : The capacitor can be damaged by drawing out the rear panel in a sloping position. Remove the rear panel by drawing out horizontally backword. 4. PWR Circuit Board After removing the rear panel, remove the following screws. Each circuit board can then be removed. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 13 EMX620 (Fig.2) (Fig.4) Inside View Rear View Front View (Fig.3) www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 14 EMX620 LSI PIN DISCRIPTION YSS234 (XN299A00) Digital Sound Processor PIN NAME I/O FUNCTION PIN NAME I/O FUNCTION NO. NO. 1 MD4 I/O 33 AVDD - DC A+5Vs bus 2 MD3 I/O 34 VDD - DC D+5V 3 MD0 I/O External RAM interface data 35 TST0 - DC D+5V 4 MD1 I/O 36 TST1 - DC D+5V 5 MD2 I/O 37 DOEN - DC D+5V 6 MCKO O Master clock output 38 SDO1 O N.C. 7 XO O Crystal oscillator connection 39 SDO0 O N.C. 8 XI I Crystal oscillator connection 40 WC O N.C. 9 ER0 I 41 BCO O N.C 10 ER1 I Eary refrection preset select 42 MA0 O 11 ER2 I 43 MA1 O 12 REV0 I 44 MA2 O 13 REV1 I Effect select 45 MA3 O 14 REV2 I 46 MA4 O 15 MUTEN I DC D+5V 47 MA5 O External RAM interface address 16 ICN I Initial clear 48 MA6 O 17 PRG I DC D+5V 49 MA7 O 18 MODE I Preset mode (H=DC +5V) 50 MA12 O 19 VSS - Ground 51 MA14 O 20 AVSS - Ground 52 VSS - Ground 21 CVA - N.C. 53 MA10 O 22 AORL O N.C. 54 MA011 O 23 AORR O N.C. 55 MA09 O External RAM interface address 24 CHL I Sample hold capacitor connection 56 MA8 O 25 AIL I Lch ADC input 57 MA13 O 26 VDD - DC D+5V 58 VDD - DC D+5V 27 AIR I Rch ADC input 59 WEN I Write enable 28 CHR I Sample hold capacitor connection 60 OEN I Output enable 29 AOFL O Lch DAC output 61 CEN I Chip select 30 AOFR O Rch DAC output 62 MD7 I/O 31 AVDD - DC A+5V 63 MD6 I/O External RAM interface data 32 CVB I Rch midpoint voltage 64 MD5 I/O www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 15 EMX620 BA6137(XA534A00) LED Driver M5229P(XG203A00) 7 SEGMENTS GRAPHIC EQUALIZER IC BLOCK DIAGRAM NJM2068L-D(XM356A00) NJM4558L-D(XM922A00) NJM4580L(XF195A00) Dual Operational Amplifier TC74HC14AF-TP1(XD657A00) Hex Inverter TC74HC74AP(IR007400) Dual D-Type Flip-Flop M5238AP(XM085A00) Dual Operational Amplifier www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 16 EMX620 INSPECTIONS 1. Measuring Instruments Low frequency Oscillator: Balance Output, Output Impedance = 150 ohms Oscilloscope: Input Impedance >= 100 K ohms Level Meter: Input Impedance >= 100 K ohms Note: Use a balance input measuring instrument 2. Mixer Part 2-1 Setting Conditions Setting conditions are as follows unless otherwise specified. 2-2 Input and Output Load Input Signal: 1 kHz, size wave (Rs = 150 ohms) Load: MAIN OUT, MONITOR OUT, EFFECT OUT, REC OUT: 10 K ohm PHONES OUT: 40 ohm 2-3 Control Panel Setting Channel Input (CH1-CH4) Section EQ (HIGH, LOW) level control: Center MONITOR level control: Maximum EFFECT level control: Maximum Level control: Maximum PAD: OFF ST Channel Input (5, 6) Section EQ(HIGH, LOW) level control: Center MONITOR level control: Maximum EFFECT level control: Maximum Level control: Maximum EFFECT Section DIGITAL EFFECT ON switch: OFF MAIN Section GRAPHIC EQUALIZER (7 band) Fader: Center EFFECT RTN level control: Maximum AUX IN: Maximum TAPE IN: Maximum MASTER (MAIN): Maximum MONITOR Section EFFECT RTN level control: Maximum MASTER level control: Maximum Others PHANTOM +48 V switch: OFF www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 17 EMX620 2-4 Gain Each output gain should be as shown in the table below. Table1 [Units:dBs] Input Terminal Input Level MAIN OUT MONITOR OUT EFFECT OUT REC OUT PHONES OUT Lo-Z -62 +4 +/- 2 +4 +/- 2 +4 +/- 2 +13.8 +/- 2 +3.4 +/- 2 -32(PAD ON) Hi-Z -52 +4 +/- 2 - - - - LINE -22 +4 +/- 2 - - - - INST -42 +4 +/- 2 - - - - AUX IN -22 +4 +/- 2 - - - - TAPE IN -22 +4 +/- 2 - - - - 2-5 Frequency Response When the input signal frequency is set to 20 Hz and 20 kHz for the systems shown in table 1, the each output terminal should fall within the range of +1 and -3 dB at 20 Hz and 20kHz, using 1 kHz as the reference. 2-6 Equalizer Characteristics When the input signals shown below are applied to the channel input the states of 2-3 and the channel EQ (HIGH, LOW) level control are changed from center position (flat), the boost/cut range at the MAIN OUT should be as follows: Table 2 [Units:dB] EQ Controls GAIN Frequency Response LOW Maximum 10K +12 +/- 2 Minimum -12 +/- 2 HIGH Maximum 100Hz +12 +/- 2 Minimum -12 +/- 2 If the result of the equalizer is out of the specified range, change the input signal frequency so that the output signal is at the set level. Its frequency should then be within the range of 80 - 120% of the standard frequency. 2-7 Graphic Equalizer Characteristics When the input signals shown below are applied to the channel input in the states of 2-3 and graphic equalizer level control are changed from center position (flat), the boost/cut range at the MAIN OUT and the MONITOR OUT should be as follows: Table 3 [Units:dB] Input signal frequency and Fader name 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz Response Maximum +12 +/- 2 Minimum -12 +/- 2 If the result of the graphic equalizer is out of the specified range, change the input signal frequency so that the output signal is at the set level. Its frequency should then be within the range of 80 -120% of the standard frequency. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 18 EMX620 2-8 Meter LED When the MAIN OUT and MONITOR OUT output levels are as shown in the table below, the corresponding METER LED lights up. Table 4 [Units:dBs] LED Name Lighting Level +6 +10 +/- 2 +3 +7 +/- 2 0 +4 +/- 2 -5 -1 +/- 2 -10 -6 +/- 2.5 2-9 Distortion Set each volume control of the INPUT section and MASTER section to nominal for the systems shown in Table 1. When each output except the REC OUT level reaches +14 dBs, the distortion ratio should be less than 0.1 % from 20 Hz to 20 kHz. 2-10 Maximum Output Level In the states of 2-9, the maximum output levels of MAIN OUT, MONITOR OUT and EFFECT OUT should be +20 dBs with a distortion of less then 1%. 2-11 Equivalent Input Noise The measurement CH level volume is assumed to be at maximum, and the other CH level volume are assumed to be at minimum in the states of 2-3. When the Lo-z are connected with a 150 ohms resistor, the MAIN OUT terminal noise level should be less than -61 dBs. If the noise level does not reach -61 dBs due to a gain variance, the converted noise level (= noise level minus the actual gain of the channel) should be less than -124 dBs. (Apply a DIN-low pass filter.) 2-12 Residual Noise Set all the input level control at minimum in the states of 2-3. When the MASTER and EFFECT OUT level controls in the MAIN and MONITOR section are changed to maximum or minimum, the residual noise should be as shown in the table below. (Apply a DIN- LOW PASS filter.) Table 5 [Units:dBs] MASTER VOLUME MAIN OUT (L, R ) MONITOR OUT EFFECT OUT Maximum -71 -73 -73 Minimum -88 -88 - 2-13 Phantom Power (+48V) Connect a load resistance of 10 K ohm (more than 1W) between pins 1 and 2 of both the Lo-z IN input terminals, then short between pins 2 and 3 of the Lo-z IN input terminal. When the PHANTOM switch is turned on, +35 +/- 3V should be obtained between the load resistance. 2-14 Digital Effect When the DIGITAL EFFECT ON switch is turned on, the ON LED lights up. When the DIGITAL EFFECT ON switch is turn off, the ON LED light goes out. Confirm that the output sound from the vocals music’s souce has a digital effect, and confirm that the effect is able to be turned on and off by the FOOT SW. 2-15 Stability When a capacitor of 10 PF to 0.1 µF is connected in parallel to the loading resistor (4 ohm, 200W or more) at each SPEAKER OUT terminal, or when all VR and EQ control volumes are set to MAX, there should be no abnormality; for example, there should be no oscillation. Especially, do not oscillate if the FREQ LEVEL is at maximum. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 19 EMX620 3. Power Amplifier Part 3-1 Setting Conditions Setting conditions are as follows unless otherwise specified. Input Terminal: INPUT CH 5 LINE 1 Measuring Output Terminal: SPEAKERS A Output Load: 4 ohm (more than 200 W) Connect the resistor when inspecting the power amplifier section. INPUT CH1-CH6 MONITOR level control: Minimum EFFECT level control: Minimum LEVEL level control: Minimum Note: Other control settings are the same as the mixer part in section 2-3. 3-2 Power ON Muting The muting relay should be released 2.5 +/- 1 seconds after the power switch is turned on. 3-3 Speaker Terminal DC Voltage When input terminals are grounded, confirm that each output terminal voltage is 0 +/- 100 mV. 3-4 Gain When applying a 1 kHz -26.0 dBs sine wave to an INPUT terminal, confirm that the SPEAKER A and MONITOR terminal output level is +20 +/- 2.0 dBs. The SPEAKER B output terminal should be measured. 3-5 Frequency Response Apply a 20 Hz, 1 kHz and 20 kHz = 26 dB sine wave signal separately to the input; the output level should be between -3 and +1dB at 20 Hz and 20 kHz, when 1 kHz is set as the reference. 3-6 Harmonic Distortion Apply a 1kHz sine wave signal to the input; the three output level should be 200 W/4 ohms (31.2 dBs/ch); the distortion ratio should be less then 0.5 %. Apply a sine wave signal of 20Hz, 1kHz and 20 kHz separately to the input; the three output level should be 100 w/4 ohms (28.2 dBs/ ch); the distortion ratio should be less than 0.5 %. Do this inspection within 30 seconds. 3-7 Residual Noise Set the MASTER level controls (MONITOR and MAIN) at minimum; the residual noise should be less than -68 dBs. Note: Apply a DIN-LOW PASS filter. 3-8 Stability Apply a 10 kHz -26 dBs rectangular signal to the input and connect a capacitor (10 pF to 0.47 µF) parallel to the 4 ohm load resistor, or connect an inductor (10 µH to 0.47 H) serial to the 4 ohm load resistor. Confirm that the output signal is as illustrated below. Overshoot: Vp / Vo <= 1.8 Ringing: 5waves and less than 5 waves Next, only connect a capacitor (10 pF to 0.47 µF) to the SPEAKERS terminal as a load, and confirm that the output is as follows: Overshoot: Vp / Vo <= 2.5 Ringing: It should end within 7 waves; there is no oscillation. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 20 EMX620 3-9 Protection Apply a 10 Hz sine wave signal to the input; increase the input so that the output signal is clipped.Confirm that the protection does not operate and that the speaker relay does not be open. When applying a 1 Hz, 6 Vp-p (8.7 dBs) sine wave signal to the input, confirm that the protection operates within 2 seconds and that the speaker relay is turned off. When turning off the input signal, confirm that the protection stops the operation seconds and that the speaker relay automatically turns on within 5 seconds. 3-10 PC limiter and limiter Apply a 1kHz -20 dBs sine wave signal to the input and then connect a 1 ohm ( +/- 5 % 100 W) resistor; confirm that the output signal is Vp-p <= 20 V and that the signal is not rectangular. 3-11 LIMITER Indicator When applying a 1 kHz -10.8 dBs sine wave signal to the input, the LIMITER indicator should light up. 3-12 Efficiency When adjusting for the output of L and R to become 10 V (+2.2 dBs), confirm that the power consumption is 330 +/- 50 W. 4. Power Supply Fluctuation There should be no operational problems when the power supply fluctuation is within +/- 10 % of the nominal voltage.ss www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 21 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 22 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 23 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 24 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 25 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 26 EMX620 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com PARTS LIST Note) DESTINATION ABBREVIATIONS A: Australian model M: South African model B: British model O: Chinese model C: Canadian model Q: South-east Asia model D: German model T: Taiwan model E: European model U: U.S.A. model F: French model V: General export model (110V) H: North European model W: General export model (220V) I: Indonesian model N,X: General export model J: Japanese model Y: Export model WARNING Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installed. CONTENTS OVERALL ASSEMBLY ......................................... 2 ELECTRICAL PARTS ........................................... 5 The numbers in “QTY” shows quantities for each unit. The parts with “– –” in “Part No.” are not available as spare parts. The second letter of the shaded ( ) parts number is I, not one. The second letter of the shaded ( ) parts number is O, not zero. www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 2 EMX620 10 R150 R100 R90 R80 R50 R20a R20b R20c R40 P200 P70 P80 P50 P90 R120 R10 R70 R110 P70 P50 P80 P60 P40 P10 P30 P20 B120 B130 B90 B100 B120 B130 B70 B80 B60 B50 B40 B10 B20 20 40 60 50 30 30 R110 R130 R140 R60 R30 R38 R35 B30 B110 B60 OVERALL ASSEMBLY www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 3 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * * * * * * * * * * * * * 10 20 30 40 40 40 40 50 50 50 50 50 60 B10 B20 B30 B40 B50 B60 B70 B80 B90 B100 B110 B120 B130 P10 P20 P30 P40 P50 P60 P70 P80 P90 P200 R10 R10 R10 R10 R20 R20 R20 R30 R35 R38 R40 R50 R60 R70 R80 R90 R90 R90 R90 R100 R110 -- -- -- -- -- V4746700 -- EG340360 XY532A00 XW440A00 XY533A00 XW442A00 -- -- -- -- -- EG340360 V4746700 -- -- -- VV102700 VV102800 EG340330 VV085400 VV435200 VV085500 03747270 VV086300 VV085600 03747290 -- V4714000 V4681000 V3291600 V3289800 VU860300 VU860200 VV625800 VU859700 VN413300 -- -- -- -- -- -- V4714100 V4714200 V4714300 V4714400 V4681200 V4681400 V4681500 EP600140 EP600230 EP600190 EG330290 VV086500 V4926900 VB659000 -- V3277000 VV205600 V3277100 VV058300 CB811170 VN413300 OVERALL ASSEMBLY Overall Assembly Overall Assembly Overall Assembly Overall Assembly Overall Assembly Body Assembly Panel Assembly Bind Head Screw Power Transformer Power Transformer Power Transformer Power Transformer Rear Assembly Rear Assembly Rear Assembly Rear Assembly Rear Assembly Bind Head Screw Body Assembly Body Carpet Shield Sheet Side Plate Side Plate Bind Head Screw Handle Oval Head Screw Corner Protector Truss Head Tapping Screw-1 Rear Angle Foot Truss Head Tapping Screw-1 Panel Assembly Front Panel Circuit Board PCB Support Hexagonal Socket Screw-S Knob Knob Knob Knob Bonding Tapping Screw-B Connector Assembly Rear Assewmbly Rear Assewmbly Rear Assewmbly Rear Assewmbly Rear Assewmbly Rear Panel Rear Panel Rear Panel Rear Panel Circuit Board Circuit Board Circuit Board Bind Head Tapping Screw-B Bind Head Tapping Screw-B Bind Head Tapping Screw-B Bind Head Screw Support Insulation Sheet Bind Head Screw Switch Bracket AC Cord AC Cord AC Cord AC Cord Cord Strain Relief Bonding Tapping Screw-B 4.0X8 MFZN2BL UL CSA CE AS 4.0X8 MFZN2BL C968 LEFT RIGHT 4.0X18 MFZN2BL 5.0X35 MFZN2BL 4.0X12 MFZN2BL 4.0X20 MFZN2BL MIX NEW NIFCO 3X25 MFZNBL MX-BLUE/D-GRAY MX-GREEN/D-GRAY ORANGE/D-GRAY N-GRAY/D-GRAY 3.0X8 MFZN2BL 1430 #24 12P 450L PWR PWR PWR 3.0X10 MFZN2BL 3.0X6 MFZN2BL 3.0X8 MFZN2BL SP 3.0X8 MFZN2Y H=7.4 B=5.5 3.0X8 MFZN2BL J VCTF 2X0.75 12A UC SJT 3X#18 10A E H05VV-F3X0.7510A BS H05VV-F3X0.75 SR-6P-4 3.0X8 MFZN2BL EMX620 J (V474430) U,V (V474440) H,W (V474450) B (V474460) A (V474470) (V474550) J U,V H,W,B A J (V474560) U,V (V474570) H,W (V474580) B (V474590) A (V474600) (V453540) (VZ52800) (V472310) (V474550) EFFECT,MAIN EFFECT RTN MONI EFFECT RTN HIGH,LOW LEVEL,MAIN MSASTR MONI,AUX IN,TAPE IN MONI MASTER (V506600) J (V474560) U,V (V474570) H,W (V474580) B (V474590) A (V474600) J U,V H,W,B A J U,V H,W,B,A (V319280) J U,V H,W,A B 12 4 2 14 2 8 16 2 8 8 13 13 8 12 7 9 8 6 3 6 6 2 2 3 01 01 06 06 01 04 01 03 02 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 05 06 06 08 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 4 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * R120 R130 R140 R150 EG340290 V4773400 V5064600 VU859000 V5290300 Bind Head Tapping Screw-B Holder, Cord Bind Head Screw Power Switch Knob ACCESSORISE Speaker Cable 4.0X6 MFZN2BL 4.0X10 MFZN2BL SP HJ & HJ 5m U,V,H,W,B,A J 2 2 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 5 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK ELECTRICAL PARTS * * * * * CN501 D301 -304 D501 -505 EM501 IC101 IC102 IC201 IC202 IC301 IC302 IC303 IC401 -404 IC405 IC406 IC501 IC502 IC503 IC504 IC505 IC506 IC507 JK101 JK102 JK103 JK104 JK201 JK202 JK203 JK204 JK301 JK302 JK303 JK304 JK401 JK402 JK403 JK404 JK405 JK501 JK502 L501 L502 L503 L504 LD401 LD402 LD403 LD404 LD405 LD501 LD502 LD503 Q101 -104 Q201 -204 Q501 Q502 SW101 SW102 V4681000 V4681200 V4681400 V4681500 V4681000 VB966900 VU860700 VV307300 VZ968500 VV291400 VV067200 VD631600 VD631600 VD631600 VD631600 VV056900 XM356A00 XQ212A00 XM356A00 XQ212A00 XQ212A00 XQ212A00 XM085A00 XM356A00 XM356A00 XG203A00 XA534A00 XM085A00 XQ212A00 XQ212A00 IR001400 IR007400 XU783A00 XN299A00 VU805200 V2886000 VU805200 V2886000 VU805200 V2886000 VU805200 V2886000 V2886000 V2886000 V2886000 V2886000 V2886000 V2886000 V2886000 V2886000 VY704800 V2886000 V2886000 GE300690 GE300690 GE300690 GE300690 VV621000 VV621000 VV938100 VV938100 VV938100 VV938100 VV621000 VV620800 IC224030 IC224030 IC224030 IC224030 VD678700 IA101590 VZ587700 VZ587700 ELECTRICAL PARTS Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Style Pin Button LED Spacer Button Jumper Wire Connector Base Post Diode Diode Diode Diode Noise Filter IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC XLM Connector Phone Jack XLM Connector Phone Jack XLM Connector Phone Jack XLM Connector Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Pin Jack Phone Jack Phone Jack Ferrite Beads Ferrite Beads Ferrite Beads Ferrite Beads LED LED LED LED LED LED LED LED Transistor Transistor Transistor Transistor Digital Transistor Transistor Push Switch Push Switch MIX PWR PWR PWR MIX IMSA-6024 CD-GRAY/WHITE NO.947 CD-GRAY 0.6 M2426XX 12P TE 1SS133,176,HSS104 1SS133,176,HSS104 1SS133,176,HSS104 1SS133,176,HSS104 ZJSR5101-223TA NJM2068L-D NJM4558L-D NJM2068L-D NJM4558L-D NJM4558L-D NJM4558L-D M5238AP NJM2068L-D NJM2068L-D M5229P BA6137 M5238AP NJM4558L-D NJM4558L-D TC74HC14AP TC74HC74AP W24258-70LL YSS234(SP3) XLR NC3FAV1-0 JY-6351F-06-340 XLR NC3FAV1-0 JY-6351F-06-340 XLR NC3FAV1-0 JY-6351F-06-340 XLR NC3FAV1-0 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JY-6351F-06-340 JK040057PN W.GND P JY-6351F-06-340 JY-6351F-06-340 BL02RN2-R62T4 BL02RN2-R62T4 BL02RN2-R62T4 BL02RN2-R62T4 LT321-41-C13 GR LT321-41-C13 GR LT331-41-C13 YE LT331-41-C13 YE LT331-41-C13 YE LT331-41-C13 YE LT321-41-C13 GR LT311G-41-C13 RE 2SC2240 GR,BL 2SC2240 GR,BL 2SC2240 GR,BL 2SC2240 GR,BL DTC114ES 2SA1015 O,Y 2C-2S Lock 2C-2S Lock EMX620 (XW829B0) J (XW828B0) U,V (XW828B0) H,W,B,A (XW828B0) (XW829B0) DIGITAL EFFECT 4 PAD (1-4) 4 OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP G. EQUALIZER LED DRIVER OP AMP OP AMP OP AMP INVERTER D-FF SRAM 256K SP3 CH-1 Lo-Z CH-1 Hi-Z CH-2 Lo-Z CH-2 Hi-Z CH-3 Lo-Z CH-3 Hi-Z CH-4 Lo-Z CH-4 Hi-Z LINE 1 LINE 2 INST 1 INST 2 MAIN OUTPUT MONITOR OUTPUT EFFECT OUT AUX IN TAPE IN,REC OUT FOOT SW PHONES -10 -5 0 +3 +6 DSP ON POWER LIMITER CH-1 PAD CH-2 PAD 01 01 01 01 01 01 01 01 01 01 01 02 03 02 03 03 03 03 02 02 04 03 03 03 03 02 04 05 11 04 02 04 02 04 02 04 02 02 02 02 02 02 02 02 02 05 02 02 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 6 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK SW201 SW202 SW401 SW501 SW502 VR101 VR102 VR103 VR104 VR105 VR106 VR107 VR108 VR109 VR110 VR201 VR202 VR203 VR204 VR205 VR206 VR207 VR208 VR209 VR210 VR301 VR302 VR303 VR304 VR305 VR306 VR307 VR308 VR309 VR310 VR401 VR402 VR403 VR404 VR405 VR406 VR407 VR408 VR409 VR410 VR411 VR501 VR502 X501 VZ587700 VZ587700 VV051500 VU804900 VU805000 V3161000 V3161000 V3161000 V3161000 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 V3161000 V3161000 V3161000 V3161000 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 V3161000 V3161000 V3161000 V3161000 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 VU804600 VV044600 VV044600 VV044600 VV044600 VV044600 VV044600 VV044600 VU804600 VU804600 QU007700 UJ838100 UJ847100 UJ847470 UJ867470 VV330700 VY946300 VV488800 VV062300 VV190000 VV062800 VV062400 VV062100 VV061500 VV062700 VV061900 VV061400 VV060900 VV060300 VV060000 Push Switch Push Switch Slide Switch Push Switch Push Switch Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Slide Variable Resistor Slide Variable Resistor Slide Variable Resistor Slide Variable Resistor Slide Variable Resistor Slide Variable Resistor Slide Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Ceramic Resonator Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap.-SM Electrolytic Cap.-SM Electrolytic Cap.-LLM Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor 2C-2S Lock 2C-2S Lock SSSU012NB1-YL SPEA31MC16-YL SPEA12MC15-YL B 50.0K RK09D113 B 50.0K RK09D113 B 50.0K RK09D113 B 50.0K RK09D113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 B 50.0K RK09D113 B 50.0K RK09D113 B 50.0K RK09D113 B 50.0K RK09D113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 B 50.0K RK09D113 B 50.0K RK09D113 B 50.0K RK09D113 B 50.0K RK09D113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 A 20.0K RK09K113 RS20H11KD017-YL RS20H11KD017-YL RS20H11KD017-YL RS20H11KD017-YL RS20H11KD017-YL RS20H11KD017-YL RS20H11KD017-YL A 20.0K RK09K113 A 20.0K RK09K113 12M CSA12.0MTZ 100.00 16.0V 10.00 25.0V 47.00 25.0V 47.00 50.0V 470.00 10.0V 100.0 35.0V 10.00 50.0V 0.039 50V J 820P 50V J 0.1 50V J 0.047 50V J 0.027 50V J 0.012 50V J 0.082 50V J 0.018 50V J 0.01 50V J 4700P 50V J 2200P 50V J 1200P 50V J CH-3 PAD CH-4 PAD PHANTOM VOCAL,L HALL,S HALL DIGITAL ON CH-1 HIGH CH-2 HIGH CH-1 LOW CH-2 LOW CH-1 MONI CH-2 MONI CH-1 EFFECT CH-2 EFFECT CH-1 LEVEL CH-2 LEVEL CH-3 HIGH CH-4 HIGH CH-3 LOW CH-4 LOW CH-3 MONI CH-4 MONI CH-3 EFFECT CH-4 EFFECT CH-3 LEVEL CH-4 LEVEL CH-5 HIGH CH-6 HIGH CH-5 LOW CH-6 LOW CH-5 MONI CH-6 MONI CH-5 EFFECT CH-6 EFFECT CH-5 LEVEL CH-6 LEVEL MAIN OUT MASTER MONITOR OUT MASTER AUX IN TAPE IN 125 250 500 1K 2K 4K 8K MAIN EFFECT RTN MONITOR EFFECT RTN C: 414,532,533 C: 105,108-110,127,128,204, 205,217,228,229,238,301, 302,309-312,317,318,410, 411,418-420,434,456,512, 526,527,536 C: 138,139,224,243,329,330, 412,431,451,455,519,531, C: 101,102,201,225 C: 117,118,209,233 C: 530 C: 103,104,106,107,202,203, 226,227 C: 129,130,219,239,319,320, 443 C: 131,132,220,240,321,322, C: 438,521 C: 439 C: 440,513,516,522 C: 441 C: 442 C: 444 C: 445,514,520 C: 446 C: 447,524 C: 448 01 01 02 05 03 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 03 03 03 03 03 03 03 04 04 03 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 7 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK VV061200 VV060100 VV060600 VV064400 VV064100 VV321100 VZ352600 VZ352700 VZ352800 VZ353000 VZ353200 VZ353400 VZ353500 VZ353600 VZ353800 VZ353900 VZ354000 VZ354600 VZ354600 HF454100 HF455100 HF455150 HF455220 HF455470 HF455560 HF455680 HF455750 HF456100 HF456120 HF456150 HF456220 HF456270 HF456330 HF456390 HF456430 HF456470 HF456560 HF456820 HF457150 HF457100 HF457270 HF457330 HF457180 HF457360 HF457470 HF457680 HF458100 HF458120 HF458220 HF458240 HF458470 Mylar Capacitor Mylar Capacitor Mylar Capacitor Monolithic Mylar Capacitor Monolithic Mylar Capacitor Monolithic Mylar Capacitor Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Cap.-B Ceramic Cap.-B Ceramic Cap.-B Ceramic Capacitor-F Monolithic Ceramic Cap. Monolithic Ceramic Cap. Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor 6800P 50V J 1500P 50V J 3300P 50V J 0.82 50V J 0.47 50V J 0.22 50V J 6P 50V J 10P 50V J 22P 50V J 33P 50V J 47P 50V J 68P 50V J 100P 50V J 220P 50V K 470P 50V K 1000P 50V K 0.01 50V Z 0.10 50V Z 0.1 50V Z 10.0 1/4 J 100.0 1/4 J 150.0 1/4 J 220.0 1/4 J 470.0 1/4 J 560.0 1/4 J 680.0 1/4 J 750.0 1/4 J 1.0K 1/4 J 1.2K 1/4 J 1.5K 1/4 J 2.2K 1/4 J 2.7K 1/4 J 3.3K 1/4 J 3.9K 1/4 J 4.3K 1/4 J 4.7K 1/4 J 5.6K 1/4 J 8.2K 1/4 J 15.0K 1/4 J 10.0K 1/4 J 27.0K 1/4 J 33.0K 1/4 J 18.0K 1/4 J 36.0K 1/4 J 47.0K 1/4 J 68.0K 1/4 J 100.0K 1/4 J 120.0K 1/4 J 220.0K 1/4 J 240.0K 1/4 J 470.0K 1/4 J C: 422,534 C: 515,518,523 C: 535,538 C: 435 C: 436 C: 437 C: 407,417 C: 405,406 C: 307,308 C: 525,528 C: 133,135,241,303,304,315, 316,323,325,221 C: 427,428,450 C: 121-126,134,136,212-214, 222,235-237,242,305,306, 313,314,324,326,425,429, 529,539 C: 401-403,415,423,424,449, 504,508 C: 111-116,206-208,210,119, 120,230-232,234,453 C: 137,223,327,328,506 C: 140-143,211,215,216,218, 331-336,404,413,416,421, 426,430,432,433,452,454, 501,503,505,509,510,517, C: 502,507,511,537,540,541, 542 C: 543 R: 119-122,127,128,141,142, 157,128,210,211,214,221, 229,242,243,246,253,261, 331,332 R: 516 R: 135,136,218,250 R: 413,414,431 R: 528 R: 429,436,442,446-448 R: 443-445,505 R: 437 R: 301,302,514 R: 424,428 R: 421,423 R: 506,508,510-512,515,517, 518,519 R: 535 R: 422,438,509 R: 412,524 R: 416,417 R: 148,150,225,257,307,308, 322,324,435,513,529 R: 154,156,228,260,328,330, R: 133,134,217,249,317,318, 426,427 R: 117,118,209,241,432 R: 147,149,153,155,224,227, 256,259,319,320,323,327, 329,415,418-420,433,440, 441,503,520-522,525,321, R: 531,532 R: 151,152,226,258,325,326 R: 159-164,230-232,262-264, 311-314,333-338,405,410, 411,430 R: 406,407 R: 309,310,504,523,526 R: 533,534 R: 101-104,106,108,201,202, 204,233,234,236,303,304, 315,316,409,434,439,507, 530,425 R: 401-403 R: 404,408 R: 501,502 R: 305,306,527 01 08 01 03 02 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 8 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * CN101 CN102 CN103 CN104 CN105 D101 -105 D106 D107 D108 D109 D110 D111 D112 D113 D114 -117 D118 -121 D122 D123 D124 D125 D131 D134 -139 D140 EM101 F101 F101 F102 F102 F103 F103 F103 FT101 IC101 IC103 IC104 IC105 JK101 JK102 L101 -104 L105 L106 L107 Q101 Q102 Q103 Q104 Q105 Q106 -108 Q109 Q110 Q111 Q112 VV058400 VV065100 VV065400 VV065500 VV066100 V2440200 VV312400 V4681200 V4681400 V4681500 V3225000 VV319600 VV291400 VV067200 LB932020 LB932060 LB933030 LB933030 VD631600 VD631600 VG437400 VG437400 IF005560 IF005560 VD631600 VD631600 VN478200 VN478200 VV082000 VV082000 VU801600 VU801600 V4096300 V4096300 VD631600 VU801600 VU801600 VU801600 VU801600 VT359600 VV056900 VV070600 VV071500 VV070600 VV071500 VZ897900 VV071000 VV071400 VV075700 XQ212A00 XD853A00 XD854A00 XJ607A00 VV089300 VV089300 V0030700 V0030700 GE300670 GE300670 VR150900 IA097030 IA097030 IC224030 IC224030 VD678500 IA097030 IA097030 IC224030 IC1815M0 IC1815M0 VE198700 Flame Proof C. Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Circuit Board Circuit Board Circuit Board Ferrite Core Fuse Holder Jumper Wire Connector Base Post Base Post Connector Base Post Connector Base Post Connector Base Post Connector Diode Diode Zener Diode Zener Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Stack Noise Filter Fuse Fuse Fuse Fuse Fuse Fuse Fuse Terminal Plate IC IC IC IC Phone Jack Phone Jack Coil Coil Ferrite Bead Ferrite Bead Coil Transistor Transistor Transistor Transistor Digital Transistor Transistor Transistor Transistor Transistor Transistor Transistor 390.0 1/4 J 2.2K 1/4 F 8.2K 1/4 F 10K 1/4 F 47K 1/4 F 2.4K 1/4 F 3.9K 1/4 F PWR PWR PWR FR25/15/12-D40 CQ-05CT 0.6 M2426XX 12P TE VH- 2P TE VH- 6P TE VH- 3P SE VH- 3P SE 1SS133,176,HSS104 1SS133,176,HSS104 MTZ J 5.1B 5.1V MTZ J 5.1B 5.1V 1SS82TD 1SS82TD 1SS133,176,HSS104 1SS133,176,HSS104 D1NL20U D1NL20U 2A01 2A01 1N4004L 26 1N4004L 26 RL 10Z LFA4 RL 10Z LFA4 1SS133,176,HSS104 1N4004L 26 1N4004L 26 1N4004L 26 1N4004L 26 D3SBA20 4.0A 200V ZJSR5101-223TA TDS 2A 250V J/U/C TSD 2A 250V SEMKO TDS 2A 250V J/U/C TSD 2A 250V SEMKO TDS 5A 125V J/U/C TDS 4A 125V J/U/C TSD 1.6A 250V SEMK NJM4558L-D NJM7815FA NJM7915FA NJM7805FA H30280072N H30280072N LHL16NB680K LHL16NB680K BL02RN2-R62T4 BL02RN2-R62T4 RZ-001 21mm 2SA970 GR,BL 2SA970 GR,BL 2SC2240 GR,BL 2SC2240 GR,BL DTA114ES 2SA970 GR,BL 2SA970 GR,BL 2SC2240 GR,BL 2SC1815 Y,GR 2SC1815 Y,GR 2SA1145 O,Y R: 113,115,207,239 R: 129,131,137,139,215,219, 247,251 R: 130,132,138,140,216,220, 248,252 R: 143-146,222,223,254,255 R: 123-126,212,213,244,245 R: 105,107,114,116,203,208, 235,240 R: 109-112,205,206,237,238 J (XW828B0) U,V (XW828B0) H,W,B,A (XW828B0) J,U,V H,W,B,A J,U,V H,W,B,A J U,V H,W,B,A OP AMP REGULATOR +15V REGULATOR -15V REGULATOR +5V SPEAKERS B SPEAKERS A 01 01 01 01 01 01 01 03 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 03 01 01 01 01 01 01 01 01 03 03 03 02 02 02 04 04 02 02 02 01 01 01 01 01 01 01 01 01 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 9 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * Q113 Q114 Q115 Q116 Q117 Q122 Q124 Q126 Q127 Q128 Q129 Q130 Q131 Q118N Q119N Q120P Q121P Q123N Q125P SW101 PR101 RY101 W101 VE198800 VE198700 VE198800 V2797700 V2797600 VP872600 VP872700 VD678700 VD678500 V2797700 V2797600 V2797700 V2797700 VV081700 VV081700 VV081700 VV059400 VL965100 VV315400 -- FU451680 FU451820 FU452220 UJ828100 UJ847100 UJ847470 UJ866100 UJ866470 UJ896470 VV082100 VV714300 V5482000 V5307900 VV082200 VV082300 VV330700 VZ353300 VZ353500 VZ353800 VZ353900 VZ354300 VZ354000 VZ354600 VV314800 VV520600 VY704000 HF454100 HF454470 HF454680 HF455100 HF455150 HF455220 HF455330 HF455560 HF456150 HF456220 HF456470 HF457100 HF457120 HF457150 HF457220 HF457270 HF457330 HF457470 HF457560 HF458150 HF458330 HF458390 VV058500 VV313700 VV313800 VV313900 Transistor Transistor Transistor Transistor Transistor Transistor Transistor Digital Transistor Digital Transistor Transistor Transistor Transistor Transistor Pair Transistor Pair Transistor Pair Transistor Push Switch Positive Thermistor Relay Connector Assembly Mica Capacitor Mica Capacitor Mica Capacitor Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Electrolytic Cap. Mylar Capacitor Mylar Capacitor Electrolytic Cap.-SM Ceramic Capacitor-SL Ceramic Capacitor-SL Ceramic Cap.-B Ceramic Cap.-B Ceramic Capacitor-E Ceramic Capacitor-F Monolithic Ceramic Cap. Capacitor Capacitor Capacitor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Flame Proof C. Resistor Flame Proof C. Resistor Flame Proof C. Resistor Flame Proof C. Resistor 2SC2705 O,Y 2SA1145 O,Y 2SC2705 O,Y 2SC5395 E,F 2SA1993 E,F 2SA1708 S,T 2SC4488 S,T DTC114ES DTA114ES 2SC5395 E,F 2SA1993 E,F 2SC5395 E,F 2SC5395 E,F B1647/D2560 B1647/D2560 B1647/D2560 SDDLB11874-YL PTH9M04BE222TS2 DC OSA-SH-224DM3M B&C #18 2P 68P 500V J 82P 500V J 220P 500V J 100.00 10.0V 10.00 25.0V 47.00 25.0V 1.00 50.0V 4.7 50.0V 4.7 100.0V 6800 80V 470 50.0V 1000 35.0V 100.00 100.0V 3.3 100V M 0.1 250V M 470.00 10.0V 56P 50V J 100P 50V J 470P 50V K 1000P 50V K 0.0022 500 M 0.01 50V Z 0.1 50V Z 1000P 400V J.U.C.S 0.01 400V J.U.C.S 4700P 400V J.U.C.S 10.0 1/4 J 47.0 1/4 J 68.0 1/4 J 100.0 1/4 J 150.0 1/4 J 220.0 1/4 J 330.0 1/4 J 560.0 1/4 J 1.5K 1/4 J 2.2K 1/4 J 4.7K 1/4 J 10.0K 1/4 J 12.0K 1/4 J 15.0K 1/4 J 22.0K 1/4 J 27.0K 1/4 J 33.0K 1/4 J 47.0K 1/4 J 56.0K 1/4 J 150.0K 1/4 J 330.0K 1/4 J 390.0K 1/4 J 10.0 1/4 J 47.0 1/4 J 220.0 1/4 J 680.0 1/4 J Pair Pair Pair POWER ON/OFF (V474210) C: 109 C: 110 C: 117,118 C: 108 C: 107,135 C: 105,106,136 C: 134 C: 113,114,140,143-145 C: 111,112,121,122,125,126 C: 150,151 C: 149 C: 146-148 C: 159,160 C: 123,124 C: 152,153 C: 137 C: 102 C: 101,116,154 C: 104 C: 103 C: 127,128,161 C: 115,119,120,129,132,133 C: 130,131 C: 155 C: 156 C: 157,158 UVHWBA R: 168 R: 153 R: 107,108 R: 122,123,131 R: 130,132 R: 155 R: 115 R: 124-126 R: 154 R: 112,113,158 R: 161 R: 135-138,156,157 R: 159 R: 139,140 R: 119,121 R: 111 R: 109 R: 114,172 R: 128,160 R: 164 R: 118,127 R: 116,117 R: 162,163 R: 148 R: 133,134,141,142 R: 149,152 01 01 01 01 01 01 01 01 01 01 01 01 01 08 08 08 08 08 08 03 04 06 01 01 02 01 01 01 01 01 01 08 01 03 01 01 01 01 01 01 01 01 01 01 02 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 10 EMX620 RANK: Japan only *: New Parts REF NO. PART NO. DESCRIPTION REMARKS QTY RANK * * * * * * * VV557800 VR412900 VV066000 VV313500 VV312800 VV312900 V0030400 V4566800 V4996300 XY532A00 XW440A00 XY533A00 XW442A00 V3277000 VV205600 V3277100 VV058300 V5290300 Flame Proof C. Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Metal Film Resistor Wire Wound Resistor Power Transformer Power Transformer Power Transformer Power Transformer AC Cord AC Cord AC Cord AC Cord Speaker Cable 1.0 1/4 J 0.1 3W J 33K 1/4 F 220K 1/4 F 680.0 1/4 F 22K 1/4 F 75.0K 1/5 F 47 2W J 68.0 5W K UL CSA CE AS J VCTF 2X0.75 12A UC SJT 3X#18 10A E H05VV-F3X0.7510A BS H05VV-F3X0.75 HJ & HJ 5m R: 145-147,150 R: 143,144 R: 110 R: 101,102 R: 120 R: 129 R: 103-106 R: 167 R: 165,166 J U,V H,W,B A J U,V H,W,A B J 01 01 01 01 01 01 01 05 06 06 08 www. xiaoyu163. com QQ 376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com EMX620 EMX620 EMX620 A B C D E F G H I J K L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 A 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 B C D E F G H I J K L Note:See parts list for details of circuit board component parts. WARNING Components having special characteristics are maked and must be replaced with parts having specification equal to those originally installed. 1 2 3 NJM7815FA (XD853A00) REGULATOR +15V NJM7805FA (FX607A00) REGULATOR +5V 1: INPUT 2: GND 3: OUTPUT 1 2 3 NJM7915FA (XD854A00) REGULATOR -15V 1: GND 2: INPUT 3: OUTPUT OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP INVERTER INVERTER D-F/F SRAM 256K G.EQUALIZER LED DRIVER REGULATOR +15V REGULATOR -15V REGULATOR +5V OVERALL CIRCUIT DIAGRAM w w w . x i a o y u 1 6 3 . c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com EMX620 EMX620 EMX620 CIRCUIT BOARD MIX Circuit Board - B version PWR 1/3 Circuit Board PWR 2/3 Circuit Board PWR 3/3 Circuit Board To AC To Transformer To Transformer LED Installation Speaker A Speaker B Power SW MIX (B version): 3NA-V468100 1 MIX (C version): 3NA-V468100 2 PWR: 3NA-V468120 1 Note : See parts list for details of circuit board component parts. IC401 IC403 Pattern Side Pattern Side 1999, 12 lot 2000, 1-4 lot Transition measure Bond Bond Component Side Component Side Component Side Component Side Component Side Panel layout MIX Circuit Board - C version w w w . x i a o y u 1 6 3 . c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com