PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2002 K-ZZS. NOV. 2002 Printed in Japan ORDER NO. CRT2978 HIGH POWER CASSETTE PLAYER WITH FM/MW/LW TUNER KEH-3031 XM/EE Service Manual 3 6 2 5 1 4 B BAND BAND BASS/TREBLE BOOSTER BASS/TREBLE BOOSTER KEH-3031 KEH-3031 KEH-3031/XM/EE For details, refer to "Important symbols for good services". CONTENTS SAFETY INFORMATION ............................................2 1. SPECIFICATIONS........................................................3 2. EXPLODED VIEWS AND PARTS LIST.......................4 2.1 PACKING...............................................................4 2.2 EXTERIOR.............................................................6 2.5 CASSETTE MECHANISM ASSY..........................8 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...10 3.1 BLOCK DIAGRAM ..............................................10 3.2 OVERALL CONNECTION DIAGRAM.................12 3.3 KEYBOARD UNIT ...............................................14 3.4 CASSETTE MECHANISM ASSY........................16 4. PCB CONNECTION DIAGRAM ................................18 4.1 TUNER AMP UNIT .............................................18 4.2 KEYBOARD UNIT ..............................................22 4.3 CASSETTE MECHANISM ASSY........................24 5. ELECTRICAL PARTS LIST ........................................25 6. ADJUSTMENT..........................................................27 7. GENERAL INFORMATION .......................................28 7.1 DIAGNOSIS ........................................................28 7.1.1 DISASSEMBLY .........................................28 7.1.2 CONNECTOR FUNCTION DESCRIPTION ...29 7.2 PARTS .................................................................30 7.2.1 IC................................................................30 7.2.2 DISPLAY....................................................35 7.3 OPERATIONAL FLOW CHART...........................36 7.4 CLEANING ..........................................................37 8. OPERATIONS ...........................................................38 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 1 2 3 4 1 2 3 4 F E D C B A KEH-3031/XM/EE 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM COM9V 2 39 N-L 8 GND 2 3 8 9 Q260 PHOTO TR 7 6 IC250 BA6219BFP-Y MOTOR DRIVER 8 6 24 15 SUB_M+ SUB_M- MOTOR+B 10 Q622 Q623 Q624 Q620 Q621 6 CASSETTE MECHANISM ASSY M MOTOR M MOTOR REEL PCB C 10 9 8 5 4 3 2 HD1 M2 M1 MAIN SUB HEAD 1 2 Q150 LPF 27 76 28 PLL CF3 IC 1 1st IF 10.7MHz 2nd IF 450kHz 13 14 17 16 15 6 18 10 12 7 5 9 11 2 1 3 4 VC4 X1 10.26M Q2 X2 CF1 D2 D1 L2 CF4 AM ANT IN GND AM Lo/Dx FM ANT IN FM/AM Vt FM Lo/Dx FM VCC FM/AM VSM FM/AM VCC N.C N.C VC3 AM IFT2 AM IFT3 L5 VC1 L8 L9 L6 L7 VC2 Q3 VR2 GND TP1 T1 FM DET AM RF Q1 AM OSC FM RF FM OSC 1 2 4 5 7 10 46 45 35 36 37 32 31 30 29 28 27 26 24 23 20 19 49 51 52 53 54 56 57 59 60 62 63 64 58 55 15 16 34 Q102 SW5V IC150 LC72135M 1 IC200 HA12229F EQ-AMP 6 9 16 1 20 14 13 15 7 SW5V CN200 PHOTO DIODE 48 CN100 ANT. TUNER AMP UNIT FM/AM TUNER UNIT A OSC/MIX/IF AMP/AGC DET/SNC/MRC/MPX FM/AM OSC BUFF FM/AM S.D OUT FM ST IDN./MONO FM/AM IF COUNT OUT L OUT (AM AF) R OUT (AM AF) FM/AM IFT1 CN250 CF2 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 5 6 7 8 F E D C B A 5 6 7 8 KEH-3031/XM/EE 1 3 56 SERVO SW 53 C-SUB M+ 52 C-SUB M- SWVDD 38 5 MUTE B.UP 18 B.UP 17 16 CN350 GND LCH Q351 Q350 Q500 SYSPW 58 Q615 B.U5V SW5V 22 6 20 MUTE VCC1 VCC2 4 FL- ACC CN600 5 6 7 1 FL+ RL+ RL- GND Q603 Q602 B.U5V Q501 B.U5V Q606 Q607 Q604 COM9V IC2 PST3434UL RESET B.U5V 1 2 IC600 TPD1018F 1 11 5 B.REM Q600 Q601 10 6 27 76 60 39 69 70 66 59 65 28 Q800 B.U5V 2 8 CN800 DGND ILLGND ST SD SL SW 5V BSENS B.REM ASENS RESET 3 SW5V 7 1 6 57 MOTOR SW KEYBOARD UNIT Q605 IC1 000974510 SYSTEM CONTROLLER 48 RHOTO_TR IC300 PML010A ELECTRONIC VOLUME 2 4 IN1L IN3L OUT_RL OUT_FL IC500 TDA7384 POWER AMP 15 IN RL 11 IN FL 4 STBY 7 9 17 19 IC900 PD6340A CN900 8 56 VDD 22 23 XO XI LCD KEY MATRIX 11 10 X2 X1 B REAR OUT 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 + + + + 22K R115 R01 C104 100 R102 470 R162 10/16 C103 1R5K R113 1K R160 51K R156 330P C159 330P C161 R01 C102 4R7uH L102 470/10 C101 R022 C111 15P C155 2R2K R154 DTA123YKA Q615 1K R159 R01 C153 DTC124EK Q100 GND6 FM/AM IF CONT FM/AM DET OUT 470/10 C154 GND5 4R7uH L103 DTA123YKA Q102 10K R157 180 R153 3R3K R152 GND4 2R2K R114 15P C156 10uH L100 22K R125 R01 C160 R01 C121 R01 C152 11 12 13 14 15 16 17 18 20 19 4R7uH L151 2R2K R105 100 R103 R022 C120 7.2MHz X150 1SS355 D100 R047 C113 68mH L101 10K R110 15K R121 15K R120 10K R123 10K R122 100K R124 0.01 C122 GND1 2R2K R151 R47/50 C151 R0033 C105 R0033 C106 2SK536 Q150 10/16 C158 ET100 + 10/16 C615 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 DSP-201M-A11F DSP100 TU-RCH TUNPCK TUNPDO TUNPCE SL TU-LCH C-RCH TU-RCH TU-LCH C-LCH SD/ST TUNPDI AM ANT FM ANT GND AM LO/DX FM LO/DX FM/AM VCC FM VCC GND GND NC FM/AM Vt FM/AM OSC L OUT R OUT SD/ST FM/AM VSM 8V 5V 8V XIN CE DI CLK DO NC XOUT VSS NC NC NC PD VDD NC FM_IN LO/DX AM_IN SEEK FM/AM IF_IN "CN101" "AR100" 1 2 3 4 5 6 7 8 9 10 22/16 C220 R1 C216 R01 C212 R1 C206 16K R201 R01 C208 16K R209 47K R40 R033 C209 270K R207 R1 C211 C205 1/50 C210 16K R208 910 R206 470P C202 470P C204 R212 47K R214 10K R220 R022 C217 1R2K R205 18K R204 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32 33 34 35 36 37 38 39 40 28 M-OUT(L) MEQOUT(L) Vref4 TAI(L) BIAS PBOUT(L) MSGv(R) MAOUT MSI MSDET Vcc MSOUT F/R SER/REP 120/70 MUTE PBOUT(R) RIP TAI(R) Vref3 MEQOUT(R) M-OUT(R) Vref2 RIN(L) RIN(R) FIN(R) GND + 47K + MSGv (S) NF1 (L) FIN (L) NF1 (R) Vref 1 C-SUB M+ GND2 R01 16K R202 470P C201 CASSETTE IN SW MAIN MOTOR- MAIN MOTOR+ SUB MOTOR- R047 R1 100 R250 R1 1 NC1 2 CD1 3 NC2 4 VR 5 NC3 6 IN1 7 GND1 8 IN2 9 NC4 10 47K R211 VCC1 11 VCC2 12 NC5 13 CD2 14 NC6 15 OUT2 16 NC7 17 NC8 18 NC9 19 GND2 20 GND3 21 NC10 22 NC11 23 NC12 24 OUT1 25 NC13 26 GND4 27 GND5 R047 10 R251 MTZJ4R7A 470P C203 47K R213 MECHA 2PD601A Q260 R1 C260 11ES2 D251 56K R262 1/4W 3R3 R266 330 R260 68K R261 GND7 HEAD R COM R-R HEAD L COM N-L N/R R-L SUB MOTOR+ MODE SW PHOTO DIODE PHOTO TR DIGITAL GND STBY DAP202K D803 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 GND7 1SS133 D800 2R2K R800 GND1 47K R803 2R2K R802 1SS133 D801 2R2K R801 DAN202K D802 C-SUB M- R01 C805 C252 1/2W 10 R252 C254 R047 C253 1/2W 22K R263 22K R264 47K R265 PHOTO_TR MODE_SW STBY MOTOR+B CASSETTE IN 2PD601A Q623 HZS22L(1) D620 2SA1706 Q622 IMD2A Q624 SERVO_SW 2 4 5 6 2 6 5 4 DSENS DGND SW5V NC KYDT DPDT ILL+B ILLGND C250 C251 D250 + VDT VST R22 C306 10P C313 R1 C801 2R2K R805 R1 C301 R22 C305 10P C315 R22 C303 TP1 R22 C304 10P C316 GND2 + 10P C314 4R7uH L300 10uH L800 22K R806 1/4W 4R7 R804 2PB709A Q800 R1 C800 2R2K R807 1K R23 1K R24 1K R25 1K R22 1K R20 1K R21 4R7 C311 4R7 C312 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 10/16 C302 47/16 C300 CASSETTE IN SW CASSETTE IN MODE SW MODE SW C-SUB M- C-SUB M- R32 1K R26 1K R27 1K R28 R31 R30 R29 1K C-LCH C-RCH MSOUT VDT 1K R19 VDT MUTE SW F/R SER/REP MUTE MUTE SW MS MODE MS MODE(SER/REP) DR SW DR SW(F/R) MS IN MS IN R18 R17 R16 R15 1K 1K 1K 1K R01 C30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 10 R210 18K R203 1SS133 D201 R0033 C214 1 C207 DTC114YKA Q621 10K R620 1R8K R621 1R5K R622 1R8K R623 2SA1706 Q620 MOTOR_SW MOTOR+B 3 3 SW5V VCK MUTE KYDT DPDT TUNPDI TUNPDO TUNPCK TUNPCE VST VDT SD/ST SW5V SWVDD PHOTO TR C-SUB M+ SERVO SW MOTOR SW SYSPW B.REM SWVDD ILL+B DSENS KYDT DPDT STBY VREF IN1L AGND IN2L IN3L IN4+L IN4-L LOUDOUT_L SVIN_L OUT_FL OUT_RL NC DGND CLK LOUDOUT_R SVIN_R OUT_FR AGND VCC IN2R IN4+R IN4-R IN3R IN1R NC STB DATA OUT_RR ADPW AVSS MUTE AVREF1 KYDT DPDT TUNPDI TUNPDO TUNPCK TUNPCE VST VDT SD ST VSS1 SW5V SWVDD STBY PCL PHOTO TR C-SUB M+ SERVO SW MOTOR SW SYSPW B.REM RESET NC DSENS ASENS BSENS VSS0 VDD1 X2 X1 IC TEST IN VDD0 AVREFO SL MODEL 5V 1K 1K 1K 1 1 TUNER AMP UNIT LC72135M IC150 CN100 FM -20dBs AM -18dBs FM -3dBs AM -0.5dBs TAPE-4dBs EQ-AMP TU100 TUNER UNIT PLL ANT LPF HA12229F IC200 CASSETTE MECHANISM ASSY MOTOR DRIVER CN250 BA6219BFP-Y IC250 CN900 CN800 KEYBOARD UNIT E V F A T PML010A IC300 SERVO MOTOR+B SYSTEM CONTROLLER 000974510 IC1 CN200 9 8 7 6 5 2 4 3 1 10 1 2 3 4 5 6 9 10 7 8 1 2 3 4 5 6 2 3 1 A C B 1 2 3 4 1 2 3 4 F E D C B A KEH-3031/XM/EE 3.2 OVERALL CONNECTION DIAGRAM Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. A 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 VDT VST 4 5 1 2 3 58 59 60 SYSPW B.REM CLK DATA ADPW SYSPW B.REM RESET NC DSENS ASENS BSENS VSS0 VDD1 X2 X1 IC TEST IN VDD0 AVREFO SL MODEL 61 + 15P C6 47K R1 1K R6 15P C7 GND3 47K R5 2R2/50 C4 6R8K R2 R10 0 R7 TP2 4.194304MHz X1 1SS355 D1 1 VOUT 2 VDD 3 NC 4 VSS 100K R1 C21 10/16 C20 R8 47K R01 C31 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 2R2K R11 RL MUTE RR FR FL SYSPW ASENS BSENS DSENS SL + + + + R47 C502 220 R503 R47 C500 R47 C501 10K R501 R1 C512 GND2 2R2/50 C351 2R2 C510 R47 C503 R0022 C352 15K R502 IMD2A Q501 1 2 3 4 5 6 2R2 C509 R47 C505 DTC124EK Q500 33/10 C511 820 R351 R47 C507 DAN202U 10/16 C508 2R2/50 C350 R47 C506 R0022 C353 100 R504 47K R353 DTA124EK Q351 47K R352 R47 C504 R1 C513 10K R500 3 2 1 6 5 4 3 2 1 4 5 6 GND1 R001 C516 R001 C517 R001 C518 R001 C519 R001 C520 0.001 C521 R001 C522 R001 C523 IMH3A Q350 1 2 3 4 5 6 + 820 R350 1R5K R505 RL+ FL+ FL- RL- FR+ FR- RR- RR+ RCH GND LCH CEK1208 10A ! + + + + + 1R5K R611 HZS7L(A1) D603 22K R608 1K R604 R1 C603 R001 C602 11ES2 D600 R01 C607 R01 C606 2SD2396 Q604 10K R607 2PD601A Q601 100K R600 11ES2 D606 47/16 C605 2R2uH L1 100K R603 10K R614 470/16 C608 GND1 3300/16 C600 R01 C611 22K R613 1R2K R609 2PD601A Q603 L600 D500 47K R606 47K R602 11ES2 D601 HZS6L(B2)L D607 HZS7L(C2) D602 HZS9L(A2) D609 R01 C610 11ES2 D605 22K R605 270 R610 2PD601A Q605 2PD601A Q600 11ES2 D604 47K R601 R047 C604 GND1 HZS9L(C1) D608 R1 C601 1R8K R616 1R8K R615 100/10 C612 100/10 C609 10K R612 15P C1 1 2 3 4 5 6 8 9 10 7 2SA2112 Q606 2SB1181F5 Q602 DTC114EK Q607 FR- FR+ FL- FL+ RL+ RL- RR+ RR- B.REM FR RR FL RL BSENS ASENS ILL+B IN GND GND GND DIAG GND GND GND OUT VCC GND FR- FR+ FL- FL+ RL+ RL- RR+ RR- ACC B_REM BU 600uH 5 6 11 3 1 8 7 10 4 9 16 15 14 13 12 2 5V 100 R302 100 R304 100 R305 100 R303 ELECTRONIC VOLUME FM -3dBs AM 0dBs TAPE-4dBs FM -3.5dBs AM -1dBs TAPE-4.5dBs CN600 TPD1018F IC600 PST3434UL IC2 CN350 TDA7384 IC500 REAR OUT POWER AMP SW14V COM9V BU5V B.REM ASENSE BSENSE DC_CONNECTOR RESET MUTE 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1516 17 18 1 3 5 7 9 11 13 15 17 19 21 23 25 2 4 6 8 10 12 14 16 18 20 22 24 NOTE : Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. 5 6 7 8 F E D C B A 5 6 7 8 KEH-3031/XM/EE A 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 GND9 KEYBOARD UNIT PD6340A IC900 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 2R2 C901 R1 C900 47K R903 470 RN901 470 RN900 4.97MHz X900 LCD900 CZA5579 1 5 10 15 20 25 30 35 40 42 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG29 SEG28 SEG30 SEG22 SEG27 SEG25 SEG24 SEG23 SEG21 SEG26 SEG20 SEG19 SEG18 SEG17 SEG16 SEG14 SEG15 SEG13 SEG7 SEG9 SEG12 SEG8 SEG10 SEG11 SEG6 SEG5 SEG4 SEG3 SEG1 SEG2 COM3 COM0 COM2 COM1 KDT1 KDT0 KST0 KST1 KST2 KST3 COM0 COM1 COM3 SEG2 SEG1 SEG4 SEG3 SEG12 SEG6 SEG11 SEG5 SEG9 SEG10 SEG8 SEG7 SEG28 SEG20 SEG14 SEG27 SEG21 SEG25 SEG26 SEG24 SEG23 SEG13 SEG22 SEG17 SEG18 SEG16 SEG15 SEG34 SEG30 SEG31 SEG32 SEG33 SEG35 SEG37 SEG29 SEG36 SEG38 COM2 SEG19 SEG4 SEG3 SEG2 SEG1 SEG0 COM3 COM2 COM1 COM0 LCDB KST3 KST2 KST1 KST0 KDT0 KDT1 REM DPDT RST KYDT MODA XO XI VSS KDT2 KDT3 NC SEG37 SEG39 SEG38 SEG36 KST4 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 VDD SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 B 1 2 3 4 1 2 3 4 F E D C B A KEH-3031/XM/EE 3.3 KEYBOARD UNIT B 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 GND8 CN800 A PL900-902 : CZE2950 14V 65mA 10 R900 2R2K R902 2R2K R901 HZM6R2ZWA D900 SW927 SW903 SW919 SW923 SW914 SW902 SW921 SW910 SW912 SW901 SW918 SW900 SW926 SW928 SW929 SW920 SW907 SW916 SW905 SW924 SW931 SW922 SW917 SW909 SW904 SW915 SW925 SW911 SW906 SW913 SW908 SW930 CN900 1 2 3 4 5 6 7 8 PL902 PL901 PL900 KDT3 KDT2 KST4 KDT0 KDT1 KDT2 KST4 KDT3 KST0 KST1 KST2 KST3 DESNS DGND SW5V NC KYDT DPDT ILL+B ILLGND LOCAL BTB 4 1 VOL- AUDIO BAND 6 2 SOURCE LOUD 3 EJECT CLOCK 5 VOL+ 5 6 7 8 F E D C B A 5 6 7 8 KEH-3031/XM/EE B 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 REEL PCB 1-0802-7004 M1 X-0802-7004 MAIN MOTOR ASSY HD1 HEAD FL FR RR RL 2 3 6 7 8 9 5 4 CN200 CN250 Q1 S3 1-0801-7024 1-0802-7003 M2 X-0802-7002 5 10 1 1 2 3 4 6 HEAD COMMON-L HEAD FWD L OUT HEAD FWD R OUT HEAD REV R OUT HEAD REV L OUT HEAD COMMON-R TUNER AMP UNIT PHOTO DIODE PHOTO SENSOR PHOTO TR SUB MOTOR+ SUB MOTOR- MAIN MOTOR+ MAIN MOTOR- CASSETTE IN SW MODE SW DIGITAL GND STAND BY POSITION SW 10 9 8 5 4 3 2 1 6 7 + M SUB MOTOR ASSY M + S1 S2 1-0802-7010 1-0802-7009 A C 1 2 3 4 1 2 3 4 F E D C B A KEH-3031/XM/EE 3.4 CASSETTE MECHANISM ASSY C 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 34 1 2 3 4 1 2 3 4 F E D C B A KEH-1033/XM/EW - Tuner Unit(CZW5536) No. Symbol I/O 1 AM ANT IN I AM antenna input Hight impedance. Connect to the antenna through an antenna circuit of receiver set. 2 FM ANT IN I FM antenna input 75Ω . Surge absober is necessary. 3 GND RF ground Ground for the antenna section. 4 AM Lo/Dx I AM local /distance Lo: 5V / Dx: open 5 FM Lo/Dx I FM local / distance Lo: ground / Dx: open 6 FM/AM VCC FM / AM power supply FM/AM section power supply. DC +8.2V 7 FM VCC FM power supply FM RF and band switch section power supply. DC +8.2V 8 GND FE ground Ground for the front end section. 9 GND FM IF/ AM ground Ground for the FM IF/AM section. 10 N.C Not used. 11 FM/AM Vt I Tuning voltage Connect to the PLL circuit. 12 FM/AM OSC BUFF O OSC buffer output Connect to the PLL circuit. 13 L OUT O L channel output FM stereo L-ch signal output or AM audio output. 14 R OUT O R channel output FM stereo R-ch signal output or AM audio output. 15 FM/AM SD OUT O Station detector High when signals are received. To be pulled up +5V at 100kΩ FM ST IND/MONO Stereo indicator out ON when 16pin SD/IF request normal 0V(seek stop). 16 FM/AM VSM O Signal meter output Received FM/AM signal level (strength) output. 17 FM/AM IF COUNT OUT I/O IF count output ON when signals are received at seeking. SD / IF request in 18 N.C Not used. Explain 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