Acer AL1914 Service Guide 0 Service Guide Version and Revision No. Version Release Date Revision 1 1.0 Apr.05.2005 Original release 1 Copyright Copyright 2005 LiteOn Technology Corp. All rights reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic machine readable form without prior written permission of LiteOn Technology Corp. ACER AL1914 Service Manual. Printed in Taiwan. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software. Acer is a registered trademark of Acer Corporation. Intel is a registered trademark of Intel Corporation. Pentium and Pentium II/III are trademarks of Intel Corporation. Other brand and product names are trademarks and/or registered trademarks of their respective holders. Trademarks LiteOn is a registered trademark of LiteOn Technology Corp. All other trademarks are property of their respective owners. 2 Conventions The following conventions are used in this manual: Screen messages Denotes actual messages that appear on screen. NOTE Gives bits and pieces of additional information related to the current topic. WARNING Alerts you to any damage that might result from doing or not doing specific actions. CAUTION Gives precautionary measures to avoid possible hardware or software problems. IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures. Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements and enhance product competitiveness, your regional office MAY have decided to extend the functionality of a machine (e.g.add-on card, modem, or extra memory capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please contact your regional offices or the responsible personnel/channel to provide you with further technical details. 2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in the printed Service Guide. For ACER- AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines. 3 Warning: (For FCC Certified Models) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1. Reorient or relocate the receiving antenna. 2. Increase the separation between the equipment and receiver. 3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 4. Consult the dealer or an experienced radio/TV technician for help. Notice: 1. The changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 2. Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission limits. 3. The manufacturer is not responsible for any radio or TV interference caused by unauthori zed modification to this equipment. It is the responsibility of the user to correct such interf erence. As an ENERGY STAR Partner our company has determined that this product meets the ENERGY STAR guidelines for energy efficiency. Warning: To prevent fire or shock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only. 4 Precautions l Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tu b, swimming pool or in a wet basement. l Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance. Use only a trolley or stand recommended by the manufacturer or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and follow the kit instructions. l Slots and openings in the back and bottom of the cabinet are provided for ventilation. To ensure reliable operation of the monitor and to protect it from overheating, be sure these openings are not blocked or covered. Do not place the monitor on a bed, sofa, rug, or similar surface. Do not place the monitor near or over a radiator or heat register. Do not place the monitor in a bookcase or cabinet unless proper ventilation is provided. l The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the type of power supplied to your home, consult your dealer or local power company. l The monitor is equipped with a three-pronged grounded plug, a plug with a third (groundin g) pin. This plug will fit only into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire plug, have an electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of the gro unded plug. l Unplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the monitor from damage due to power surges. l Do not overload power strips and extension cords. Overloading can result in fire or electric shock. l Never push any object into the slot on the monitor cabinet. It could short circuit parts causing a fire or electric shock. Never spill liquids on the monitor. l Do not attempt to service the monitor yourself; opening or removing covers can expose you to dangerous voltages and other hazards. Please refer all servicing to qualified service personnel l To ensure satisfactory operation, use the monitor only with UL listed computers which hav e appropriate configured receptacles marked between 100 - 240V AC, Min. 5A. l The wall socket shall be installed near the equipment and shall be easily accessible. 5 Special Notes On LCD Monitors The following symptoms are normal with LCD monitor and do not indicate a problem. Notes l Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears. l You may find slightly uneven brightness on the screen depending on the desktop pattern you use. l The LCD screen has effective pixels of 99.99% or more. It may include blemishes of 0.01% or less such as a missing pixel or a pixel lit all of the time. l Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the image, when the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off the Power Switch for hours. 6 Chapter 1 Monitor Features ……………………………………… 8 Induction ……………………………………… 8 Electrical Requirements ……………………………………… 9 LCD Monitor General Specification ……………………………………… 10 LCD Panel Specification ……………………………………… 11 Support Timing ……………………………………… 12 Block Diagram ……………………………………… 14 Main Board Diagram ……………………………………… 15 Software Flow chart ……………………………………… 16 Main Board Layout ……………………………………… 17 Front Bezel ……………………………………… 21 Rear Bezel ……………………………………… 22 Chapter 2 Operating Instructions ……………………………………… 23 External Controls ……………………………………… 23 Front Panel Controls ……………………………………… 24 Adjusting the picture ……………………………………… 25 Hot-Key Menu ……………………………………… 28 OSD Message ……………………………………… 28 LOGO ……………………………………… 29 Chapter 3 Machine Disassembly ……………………………………… 30 Chapter 4 Troubleshooting ……………………………………… 39 Chapter 5 Connector Information ……………………………………… 46 Chapter 6 FRU (Field Replacement Unit) List ……………………………………… 47 Exploded Diagram ……………………………………… 48 Chapter 7 Schematic Diagram ……………………………………… 50 Analog ……………………………………… 50 TSU16AK ……………………………………… 51 LVDS ……………………………………… 52 Key Board Connector ……………………………………… 53 Main board power supply ……………………………………… 54 Audio ……………………………………… 55 Power Board ……………………………………… 56 7 Table Of Contents Monitor Features Introduction Scope This specification defines the requirements for the 19” MICRO-PROCESSOR based Multi- mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15 pin D-sub VGA connector. It also supports VESA DPMS power management and plug & play function. There is a build-in stereo audio amplifier with OSD control to drive a pair of speakers. Description The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation. This will alleviate the growing health concerns. It is also a space saving design, allowing more desktop space, and comparing to the traditional CRT monitor, it consumes less power and gets less weight in addition MTBF target is 50k hours or more. Chart of AL1914 Panel 19" Samsung LTM190EX-L01 19” AU M190EN04 V5 Signal Interface D-SUB Sync Type Separate / Compatible Color Temp User Adjust Support DDC DDC2B Speaker 1.5W x2 (Rated power) Headphone Jack No Microphone Jack No USB Hub Not support Tilt / Swivel Yes / No Height Adjust Option 8 Chapter 1 Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light : 225 lux Viewing distance : 40 cm in front of LCD panel Warm up time All specifications : 30 minutes Fully functional : 5 seconds Measuring equipment : Chroma 7120 signal generator or equivalent, directly Connected to the monitor under test. Control settings User brightness control : Maximum (unless otherwise specified) User contrast control : Typical (unless otherwise specified) User red/white balance, Green/white balance and Blue/white balance control : In the center (unless otherwise specified) Power input : 100Vac or 264Vac Ambient temperature : 20+5℃ Analog input mode : 1280 x1024 /75 Hz Measurement systems The units of measure stated in this document are listed below: 1 gamma = 1 nano tesla 1 tesla = 10,000 gauss cm = in x 2.54 lb = kg x 2.2 degrees F = [°C x 1.8] + 32 degrees C = [°F - 32]/1.8 u' = 4x/(-2x + 12y + 3) v' = 9y/(-2x + 12y + 3) x = (27u'/4)/[(9u'/2) - 12v' + 9] y = (3v')/[(9u'/2) - 12v' + 9] nits = cd/(m2) = Ft-L x 3.426 lux = foot-candle x 10.76 9 LCD Monitor General Specification Panel type 19 “ active matrix color TFT LCD SAMSUNG LTM190EX-L01 Display size 376.32mm (H) × 301.056mm(V) Display mode VGA 640 × 480 (60//72/75 Hz) SVGA 800 × 600 (56/60/72/75 Hz) XGA 1024 × 768 (60/70/75 Hz) SXGA 1280 × 1024 (60//75 Hz) Pixel pitch 0.294mm(H) × 0.294mm(V) Display dot 1280 x (RGB) × 1024 Pixel clock 25.2 – 135.0MHz Contrast ratio 500:1 Brightness 250 cd/m2 Response time (Tr/Tf) 8ms (Tr=1.7ms, Tf=6.3ms) Display color 16.7M(RGB 8 bit Data) Viewing angle H:140 / V:140 (typ) Pc interface RGB Analog Interface Digital interface (Only Dual-Input Model) Signal connector D-Sub 15pin Interface frequency Horizontal Frequency 30KHz ----80KHz Vertical Frequency 55Hz ------75Hz Plug & play VESA DDC2B Power Input voltage 47-63HZ, 100 VAC to 264VAC ±10% Total output power 60 Watt max. 10 LCD Panel Specification LCD Panel Model (SAMSUNG LTM190EX-L01) l Display Type active matrix color TFT LCD l Resolution 1280x1024 pixels l Display Dot 1280x (RGB) x 1024 l Display Area 376.32mm(H) x 301.056mm(V) l Pixel Pitch 0.294mm(H) x 0.294mm(V) l Display Color 16.7M (true) l Lamp Frequency 80kHz l Lamp Current 7.0 mArms (typ) l Weight 2750g (typ) l Optical Specifications IL = 7.5mArms Ta = 25 ± 2°C VDD = 5V FV = 60Hz FDCLK = 54MHz Supported Timing ITEM Symbol Condition MIN. TYP. MAX. UNIT Contrast Ratio (Center of screen) CR θ=0, φ=0 Normal Viewing Angle 450 700 - 　 Response Time at Ta Rising TR - 1.7 3 msec Falling TF - 6.3 9 Luminance of white (Center of screen) YL 250 300 - cd/m2 Color Chromaticity (CIE) Red RX 0.610 0.640 0.670 　 RY 0.229 0.329 0.359 　 Green GX 0.270 0.300 0.330 　 GY 0.570 0.600 0.630 　 Blue BX 0.120 0.150 0.180 　 BY 0.030 0.060 0.090 　 White WX 0.283 0.313 0.343 　 WY 0.299 0.329 0.359 　 Viewing Angle Hori. θL CR≥10 - 80 - Degrees θR 65 75 - Vert. φH 65 75 - φL 65 75 - Brightness Uniformity BUNI 　 - - 25 % Flicker F 　 - - 8 % 11 VESA MODES Horizontal Vertical Mode Resolution Total Nominal Frequenc y +/- 0.5kHz Sync Polarit y Nomina l Freq. +/- 1 Hz Sync Polarity Nominal Pixel Clock (MHz) VGA 640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500 640x480@75Hz 840 x 500 37.500 N 75.00 N 31.500 SVG A 800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000 800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000 800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000 800x600@75Hz 1056x625 46.875 P 75.000 P 49.500 XGA 1024x768@60Hz 1344x806 48.363 N 60.004 N 65.000 1024x768@70Hz 1328x806 56.476 N 70.069 N 75.000 1024x768@75Hz 1312x800 60.023 P 75.029 P 78.750 1152x864@75Hz 1600X900 67.5khz P 75 P 108.000 SXG A 1280x1024@60Hz 1688x1066 63.981 P 60.020 P 108.000 1280x1024@75Hz 1688x1066 79.976 P 75.025 P 135.000 IBM MODES Horizontal Vertical DOS 720x400@70Hz 900 x 449 31.469 N 70.087 P 28.322 DOS 640x350@70Hz 800 x 449 31.469 P 70.087 N 25.175 XGA 1024x768@72Hz 1304 x 798 57.515 P 72.1 P 75.000 MAC MODES V GA 640x480@67Hz 864x525 35.000 N 66.667 N 30.240 SVGA 832x624@75Hz 1152x667 49.725 N 74.551 N 57.2832 XGA 1024x768@60Hz 1312x813 48.780 N 60.001 N 64.000 1024x768@75Hz 1328x804 60.241 N 74.927 N 80.000 . Support Modes There will be 20 total support modes to accommodate the above mode and other video modes within the frequency range of the monitor. 12 85Hz refresh rate Support Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display “ Out of Range” warning menu at this mode. Video Input Connector PIN NO. DESCRIPTION PI N NO. DESCRIPTION 1. Red 9. +5V 2. Green 10. Logic Ground 3. Blue 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Data 5. DDC-Return 13. H-Sync 6. R-Ground 14. V-Sync 7. G-Ground 15. DDC-Serial Clock 8. B-Ground VGA Connector layout Monitor Block Diagram The LCD MONITOR will contain a main board, a power board (include adapter and inverter), keypad board and audio board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel. 13 Main Board Diagram 14 Video signal, DDC Power board (Include: adapter, inverter) Flat Panel and CCFL backlight Main Board Keyboard RS232 Connector For white balance adjustment in factory mode HOST Computer CCFL Drive. AC-IN 100V-240V Audio board LCD Interface EEPROM 24C16 Software Flow Chart 1) MCU initialize. 2) Is the eeprom blank? 3) Program the eeprom by default values. 4) Get the PWM value of brightness from eeprom. Check the pin PANEL1 and PANEL2 to tell which panel to get with it. 5) Is the power key pressed? 6) Clear all global flags. 15 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18 Scaler TSU16AK (Include: ADC, OSD etc) MCU OSD Control Interface (Keypad) D-SUB Connector EEPROM 24C02 Crystal 14.318MHZ 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode. 9) Saving the power key status into eeprom. Turn on the LED and set it to green color. Scalar initializes. 10) In standby mode? 11) Update the lifetime of back light. 12) Check the analog and digital port, are there any signals coming? 13) Does the scalar send out a interrupt request? 14) Wake up the scalar. 15) Are there any signals coming from analog or digital port? 16) Display " No Input Signal " message. And go into standby mode after the message disappear. 17) Program the scalar to be able to show the coming mode. 18) Process the OSD display. 19) Read the keyboard. Is the power key pressed? 16 Main Board Layout Label Part number Description CN301 88L 35315F HS D-SUB 15PIN FEMALE U202 56L 563 7 AIC1084-33CM U301 56L1133 34 M24C02-WMN6T SMT U401 56L 562 86 Tsu16ak pqfp-128 U601 56L1125137SC9 W78E65P-40 U602 56L1133 56 M24C16-WMN6T/W SO-8 U603 56L 643 5A MAX810STR SOT-23 X601 93G 22 55 H 　20MHZ/20PF/49US X401 93G 22 53 14.318MHzHC-49US 17 The step between front bezel and back cover shall be within specification. Top and Bottom Left and Right Back cover & Bezel concavity Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm 0.8mm ≤ A ≤ 1.3 mm Back Cover & Hinge Cover concavity 0mm ≤ B ≤ 0.5mm 18 B Base & Neck concavity 0mm ≤ C ≤ 0.6mm Top and Bottom Left and Right Back cover & Bezel step Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm 0mm≤ D ≤ 0.8 mm LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. The distance of the LCD display unit from left side to right should not large than 4.0mm. 19 Tilt Base Rotation Tilt up 15 ± 2°/ down 5 ±2° Plastic Material For TCO99 Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB For MPRII Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.2 mm 20 Front Bezel EXTERNAL CONTROLS FRONT PANEL CONTROL Item Description Item Description 1. Auto Adjust Key/Exit 4. MENU/ENTER 2. / Volume 6. /Power Key 21 Rear Bezel Item Description 1. Power Cable 2. Signal Cable 3. Audio cable (Option-only for Audio model) Operating Instructions Press the power button to turn the monitor on or off. The other control buttons are located at 22 Chapter 2 front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. · The power cord should be connected. · Connect the video cable from the monitor to the video card. · Press the power button to turn on the monitor position. The power indicator will light up. External Controls Item Description Item Description 1. Auto Adjust Key/Exit 4. MENU/ENTER 2. / Volume 6. /Power Key Front Panel Control 23 · Power Button: Press this button to turn the monitor ON or OFF. · Menu / Enter : Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD menu when in Volume Adjust OSD status. · /Volume: Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or adjust a function when function is activated. · Auto Adjust button / Exit: 1. When OSD menu is in active status, this button will act as EXIT-KEY(EXIT OSD menu). 2. When OSD menu is in off status, press this button for 2 seconds to activate the Auto Adjustment function. The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus. · Power Indicator: Green — Power On mode. Orange — Off mode NOTES Notes · Do not install the monitor in a location near heat sources such as radiators or air ducts, or in a place subject to direct sunlight, or excessive dust or mechanical vibration or shock. · Save the original shipping carton and packing materials, as they will come in handy if you ever have to ship your monitor. · For maximum protection, repackage your monitor as it was originally packed at the factory. · To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a cloth lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or abrasive cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before cleaning it. 24 Adjusting the Picture a. How to Adjust a Setting 1. Press the MENU-button to activate the OSD window. 2. Press to select the desired function. 3. Press the MENU-button to select the function that you want to adjust. 4. Press < or >to change the settings of the current function. 5. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-4. I. Analog-Only Model 25 b. The Description For Control Function Main Menu Icon Sub Menu Item Sub Menu Icon Description Contrast Contrast from Digital-register. Brightness Backlight Adjustment Focus Adjust Picture Phase to reduce Horizontal-Line noise Clock Adjust picture Clock to reduce Vertical-Line noise. H. Position Adjust the horizontal position of the picture. V. Position Adjust the vertical position of the picture. Warm N/A Recall Warm Color Temperature from EEPROM. Cool N/A Recall Cool Color Temperature from EEPROM. User / Red Red Gain from Digital-register. User/ Green Green Gain Digital-register. User / Blue Blue Gain from Digital-register. English N/A Set OSD display language to English. Traditional Chinese N/A Set OSD display language to Traditional Chinese. Deutsch N/A Set OSD display language to German. Français N/A Set OSD display language to French. Español N/A Set OSD display language to Spain. Italiano N/A Set OSD display language to Italian. Simplified Chinese N/A Set OSD display language to Simplified Chinese. Japanese N/A Set OSD display language to Japanese. H. Position Adjust the horizontal position of the OSD. 26 V. Position Adjust the vertical position of the OSD. OSD Timeout Adjust the OSD timeout. Main Menu Icon Sub Menu Item Sub Menu Icon Description (Analog- Only Model) Auto Config N/A Auto Adjust the H/V Position, Focus and Clock of picture. Information N/A Show the resolution, H/V frequency and input port of current iput timing. Reset N/A Clear each old status of Auto-configuration and set the color temperature to Cool. Exit N/A Exit OSD 27 Hot-Key Menu a. Outline b. The Description For Hot-Key Function Item Operation Icon Description Volume When the OSD is closed, press Left or Right button will be Volume Hot-Key Function Volume of Audio adjustment. The Audio will be Mute when volume=0 OSD Message a. Outline b. The Description For OSD Message Item Description Auto Config Please Wait When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the monitor do the auto config function. Input Not Supported When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message. This message will be flying. Cable Not Connected Analog-Only Model: When the video cable is not connected, will show this message. This message will be flying. No Signal Analog-Only Model: When the video cable is connected, but there is no active signal input, will show this message, then enter power saving. 28 Logo When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The DDC2B is a bidirectional data channel based on the I²C protocol. The host can request EDID information over the DDC2B channel. This monitor will appear to be non-functional if there is no video input signal. In order for this monitor to operate properly, there must be a video input signal. This monitor meets the Green monitor standards as set by the Video Electronics Standards Association (VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK). This feature is designed to conserve electrical energy by reducing power consumption when there is no video-input signal present. When there is no video input signal this monitor, following a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature except the display is completely off. The display is restored by pressing a key on the keyboard, or clicking the mouse. Using The Right Power Cord The accessory power cord for the Northern American region is the wallet plug with NEMA 5- 15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volts AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No. 18 AWG, type SJT or SVT three conductors flexible cord. One end terminates with a grounding type attachment plug, rated 10A, 250V, CEE-22 male configuration. The other end terminates with a molded-on type connector body, rated 10A, 250V, having standard CEE-22 female configuration. Please note that power supply cord needs to use VDE 0602, 0625, 0821 approval power cord in European counties. 29 Machine Disassembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance. Disassembly Procedure Disassemble the base 1. Remove hinge cover. (Fig 1) 2. Remove four screws to release stand base. (Fig 2) 30 Chapter 3 Fig 1 Fig2 Disassemble the front cover 1. Remove nine screws to release back cover. (Fig 3) 2. Remove nine screws to release front bezel. (Fig 4) 3. Remove two screws to release keyboard. (Fig 5) 4. Remove connector wire with keyboard and speakers. (Fig 6) 31 Fig 3 Fig 4 32 Fig 5 Fig6 Disassemble the rear bezel Fig7 Disassemble the shield 1. Remove two screws to release the shield. (Fig 8) 2. Remove the shield as arrow direction. 33 Fig8 Disassemble the audio board 1. Remove two screws to release audio board. (Fig 9) 2. Remove connector wire with audio board and power board. (Fig 10) 34 Fig9 Fig10 Disassemble the main board 1. Remove three screws to release main board. (Fig 11) 2. Remove connector wire with main board and panel. (Fig 12) 3. Remove connector wire with main board and power board. (Fig 13) 35 Fig11 Fig12 36 Fig13 Disassemble the power board 1.Remove five screws to release power board. (Fig 14) 2. Remove connector wire with power board and panel. (Fig 15) 37 Fig14 Fig15 Disassemble the panel 1. Remove four screws (right and left) to release metal frame. (Fig 16) 38 Fig16 Troubleshooting This chapter provides troubleshooting information for the AL1914: 1. No power 39 Chapter OK No power Power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Measure U201 PIN2=2.5V U202 PIN2=3.3V Reinsert or check the power section X401 oscillate waveforms are normal Measure CN201 PIN5/6=12V? Measure CN201 PIN9/10=5V? OK OK NG NG NG Replace U401 Replace X401 OK NG Check power section Replace U201, U202 NG 2. No picture (LED is orange) 40 No picture OK OK NG NG Measure U201 PIN2=2.5V U202 PIN2=3.3V Replace U201, U202 X601 oscillate waveforms are normal Replace X601 Check if the sync signal from computer is output and video cable is connected normally Input the sync signal of computer, or change the cable Replace U601 NG OK 3. Panel Power Circuit 41 Replace PANEL Measure Q203 base is high level? Check Q203 and Q204 are broken or CN201 solder? Check Correspondent component. OK OK OK OK NG NG NG NG Measure U201 PIN2=2.5V U202 PIN2=3.3V Replace U201, U202 X601 oscillate waveforms are normal Replace X601 Replace U601 4. Keypad Board 42 OK OK OSD is unstable or not working Is Keypad board connecting normally Is Button Switch normally Is Keypad board normally Check main board Connect Keypad Board Replace Button Switch Replace Keypad Board OK NG NG NG 5. PWPC No Power 43 Check AC line volt 110V or 220V OK Check AC line Check the voltage of C905 (+) Check F901, bridge rectified circui t Check start voltage for the pin3 of IC901 Check R906, R907,IC901 Check the auxiliary voltage is between 10V-16V Check IC901,T901 Check ZD901, D903 OK Check D910, D911, IC902 OK NG No power NG NG OK NG No Backlight 44 Check C201 (+) =12V NG OK Change F902 Check D201/Q209/Q210/ D202/Q211/Q212 Check ON/OFF signal Check Interface board N G OK Check U201 pin9=12V ? N G OK Change Q201 or Q202 Check the pin1 of U201 have saw tooth wave N G OK Change U201 Check D201(-), D202(-) have the output of square wave at short time. N G OK CheckQ205/Q207/Q203/Q201or /Q206/Q208/Q204/D202 Check the resonant wave of pin2 & pin5 for PT201/ PT202 N G Check the output of PT201/PT202 Check Q209/Q210/C213 or Q211/Q212/C214 Check connecter & lam p OK N G Change PT201/PT202 OK 6.No Audio 45 Check power supply of U201 is 12? Check connecting is ok? Reconnect Mute and volume setting is ok? Reset mute and volume Check input signal of U201is ok? Check correspondent component Replace U201 Replace speaker OK OK OK NG NG NG NG NG Connector Information The following figure shows the connector locations on the monitor board: 15 – Pin Color Display Signal Cable (D-sub) PIN NO. DESCRIPTION PI N NO. DESCRIPTION 1. Red 9. +5V 2. Green 10. Logic Ground 3. Blue 11. RS232 4. RS232 12. DDC-Serial Data 5. DDC-Return 13. H-Sync 6. R-Ground 14. V-Sync 7. G-Ground 15. DDC-Serial Clock 8. B-Ground 46 Chapter 5 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1914.Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please note WHEN ORDERING FRU PARTS, that you should check the most up-to- date information available on your regional web or channel (http://aicsl.acer.com.tw/spl/). For whatever reasons a part number change is made, it will not be noted in the printed Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. 47 Chapter 6 Exploded Diagram (Model: AL1914) 48 Part List Above picture show the description of the following component. Item Picture Description Part No. 1 BACK COVER 34L1381 FV 1B 2 Stand 34L1212 FV B 3 BEZEL 34L1380BGE 1B 4 BASE 34L1382 FV B 5 SCREW M1L1730 8128 6 SCREW Q1L1040 12128 49 Schematic Diagram Analog and Digital Input R320 100£[ 1/16W VSYNC 4 B+ 4 DVI5V C311 33pF C305 0.047uF R307 100£[ 1/16W R318 10K£[ 1/16W R304 470£[ 1/16W R314 10K£[ 1/16W C313 0.1uF R315 100£[ 1/16W D316 LL5232B 5.6V 5% CLK_DDC2 D319 TZMC5V6-GS08 R326 75£[ 1/16W D313 BAV99 3 1 2 R301 100£[ 1/16W D301 BAV99 3 1 2 C307 0.001uF R312 100£[ 1/16W GNDR 4 R324 10K£[ 1/16W R322 100£[ 1/16W SOG 4 C310 0.047uF D304 BAV70 1 2 3 TXD 6 R311 1K£[ 1/16W C315 0.1uF DVI5V R310 1K£[ 1/16W RXD 6 C302 NC B- 4 CLK_DDC VCC5V C304 0.047uF FB301 0£[ 1/16W ST_DET2 6 D320 TZMC5V6-GS08 C308 0.047uF C309 0.047uF DAT_DDC U302 M24C02WMN6 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC R305 100£[ 1/16W R306 100£[ 1/16W U301 M24C02WMN6 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC VSI C301 NC VCC5V PC5V C314 0.1uF D318 TZMC5V6-GS08 ST_DET1 6 PC5V FB304 150 OHM CN302 JACK 1 2 3 4 5 6 7 8 25 28 9 10 11 12 13 14 15 16 26 29 17 18 19 20 21 22 23 24 27 DAT2- DAT2+ 2/4shield DAT4- DAT4+ DDC SCL DDC SDA VSYNC R HSYNC DAT1- DAT1+ 1/3shield DAT3- DAT3+ +5V SYNC GND HPD G RGB GND DAT0- DAT0+ 0/5shield DAT5- DAT5+ clk shield clk+ clk- B G- 4 R323 10K£[ 1/16W R302 100£[ 1/16W R303 100£[ 1/16W BIN 4 R327 75£[ 1/16W HSYNC 4 R308 10K£[ 1/16W D312 BAV99 3 1 2 VCC5V G+ 4 VCC5V R313 2.2K£[ 1/16W C303 NC INPUT D MST8031/ MST8131 for AOC B 3 6 Tuesday, November 09, 2004 Title Size Document Number Rev Date: Sheet of VGA_CON C306 0.047uF D309 BAV99 3 1 2 CN301 DB15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 D323 TZMC5V6-GS08 CLK- 4 D315 LL5232B 5.6V 5% D306 BAV99 3 1 2 R317 10K£[ 1/16W D305 BAV70 1 2 3 C312 220pF D302 BAV99 3 1 2 R316 100£[ 1/16W VCC5V R325 75£[ 1/16W FB303 0£[ 1/16W R+ 4 DAT_DDC2 D310 BAV99 3 1 2 R- 4 DDC_DAT 6 D303 BAV99 3 1 2 R309 100£[ 1/16W R321 10K£[ 1/16W D311 BAV99 3 1 2 D322 TZMC5V6-GS08 D307 BAV99 3 1 2 D321 TZMC5V6-GS08 DDC_CLK 6 D308 BAV99 3 1 2 FB302 0£[ 1/16W D314 LL5232B 5.6V 5% RIN 4 GIN 4 GNDB 4 D317 TZMC5V6-GS08 R319 100£[ 1/16W GNDG 4 HSI CLK+ 4 Chapter 7 50 TSU16AK C418 0.1uF AdjBACKLITE 2 VPLL VDD + C422 10uF/16V + C424 10uF/16V C403 22pF R401 NC R402 100£[ 1/16W CLK- 3 BIN 3 SDA 6 PB6 VAA4 2 VAA3 VCC5V PA7 C406 0.1uF VCC3.3 HWRESET 6 AD0 6 FB403 600 OHM VSYNC 3 C423 0.1uF R- 3 GIN 3 PA0 CSZ 6 C415 0.1uF GNDB 3 Direct Bus C407 0.1uF + C419 10uF/16V VCC2.5 VDVI FB401 600 OHM HSYNC 3 C411 0.1uF PA5 VPO R403 390£[ 1/16W C412 0.1uF C425 0.1uF INT 6 PB3 + C427 10uF/16V C416 0.1uF VAA4 PA3 C401 0.1uF VAA1 2 FB404 600 OHM C421 0.1uF + C414 10uF/16V PB2 PA8 VPO VAD NC VDVI PA9 NC PB8 VCC3.3 2 C420 0.1uF AD3 6 VDVI RIN 3 GNDR 3 PA[0..9] C413 0.1uF + C405 10uF/16V 4.7K PA1 R405 10K£[ 1/16W G- 3 R407 10K£[ 1/16W PB5 VAA3 2 B+ 3 PB7 CLK+ 3 PB4 VCC2.5 2 VAD C417 0.1uF VAA2 VCC3.3 PA[0..9] 5 PA2 C426 0.1uF VDD PB[0..9] R+ 3 R401 C410 0.1uF PB1 C402 22pF VDPLL 3-WIRE C404 0.1uF X401 14.318MHz C409 0.1uF AD1 6 G+ 3 VPLL PA4 FB402 600 OHM AD2 6 GNDG 3 FB405 600 OHM FB406 600 OHM 4.7K VDPLL C408 0.1uF R406 10K£[ 1/16W PA6 VAA1 R402 PB9 U401 MST8031/8131 63 60 61 58 62 59 57 37 38 40 41 43 44 46 47 49 50 52 66 67 69 70 71 32 72 73 74 107 55 35 45 3 51 11 21 84 94 104 114 126 18 87 97 117 39 56 36 2 54 42 10 20 85 95 115 127 19 86 96 105 116 33 34 108 109 110 111 112 113 118 119 120 121 122 123 124 125 128 1 29 28 30 31 53 65 64 48 106 103 102 68 77 78 6 RIN0 GIN0 SOGIN0 BIN0 RIN0M GIN0M BIN0M HSYNC0 VSYNC0 R+ R- G+ G- B+ B- CK+ CK- REXT REFP REFM CSZ SDA SCL HWRESETZ INT PWM0 PWM1 LVACKM AVDD AVDD_MPLL AVDD_DVI BYPASS AVDD_DVI VDDP VDDP VDDP VDDP VDDP VDDP VDDP VDDC VDDC VDDC VDDC AVSS_DVI AVSS AVSS_MPLL AVSS_LPLL AVSS_PLL AVSS_DVI GNDP GNDP GNDP GNDP GNDP GNDP GNDC GNDC GNDC GNDP GNDC XIN XOUT LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M NC/LVB3P NC/LVB3M NC/LVBCKP NC/LVBCKM NC/LVB2P NC/LVB2M NC/LVB1P NC/LVB1M NC/LVB0P NC/LVB0M DDC1_CLK/GPO8 DDC1_DAT/GPO7 ADO/NC AD3/NC AVDD_PLL AVDD AVSS AVSS_DVI LVACKP LVA3M LVA3P AVSS AD1/NC AD2/NC BUS TYPE/NC SOG 3 Volume 6 PB[0..9] 5 B- 3 SCL 6 R404 10K£[ 1/16W SCALER D MST8031/ MST8131 for AOC B 4 6 Wednesday, April 14, 2004 Title Size Document Number Rev Date: Sheet of PB0 C428 0.1uF VAA2 2 51 LVDS PB6 PB9 LVB0P + C509 47uF/16V LVACKP LVB1M LVA3M PA5 LVB1P PB0 RXO3+ RXE3- RXE0+ LVB0M PB7 RXE2- LVA0P C511 0.1uF VLCD RXEC+ RXO0+ LVB1P VLCD 2 LVB3P LVB2P PA0 LVB3P PB3 RXO2+ PA2 PB[0..9] RXO3- PB[0..9] 4 LVB3M LVACKP PA[0..9] RXOC- RXO1+ LVA1P PA3 RXO2- LVA0M LVA2M LVB1M LVA0P LVA3P LVA0M PA6 PA[0..9] 4 RXE2+ LVACKM PA7 LVB2M RXE0- LVBCKP LVB0P LVA1P PB5 LVBCKM LVB2P RXO0- LVA2P RXOC+ PB2 RXE1- LVB0M PA4 LVBCKP C510 0.1uF PA1 PB4 PA8 R502 0£[ 1/16W LVA1M PB1 RXO1- LVA1M RXEC- LVA2P LVA2M PA9 CN503 CONN 2 4 6 8 10 12 14 16 18 20 22 24 1 3 5 7 9 11 13 15 17 19 21 23 LVACKM LVB3M LVA3M LVBCKM RXE1+ PB8 PANEL INTERFACE D MST8031 / MST8131 for AOC A 5 6 Wednesday, April 14, 2004 Title Size Document Number Rev Date: Sheet of RXE3+ LVB2M LVA3P 52 MCU/ Key Board Connector R630 NC R624 470£[ 1/16W R620 470£[ 1/16W R603 10K£[ 1/16W R619 4.7K£[ 1/16W R607 10K£[ 1/16W AD3 4 ENTER DDC_DAT 3 VCC5V FB601600 OHM CN601 CONN 2 4 6 8 10 12 14 1 3 5 7 9 11 13 HWRESET 4 X601 20MHz R615 10K£[ 1/16W Volume 4 R626 10K£[ 1/16W RIGHT R608 100£[ 1/16W RN601 10K£[ 1/16W 1 2 3 4 8 7 6 5 C606 0.001uF R634 100£[ 1/16W C604 22pF + C603 10uF/16V OUT-R- VCC12V 2 Mute C608 0.001uF C616 1uF/25V D601 LL4148-GS08 VCPU C612 0.1uF DVI-DSUB SELECT C613 0.1uF R636 0£[ 1/16W POWER R639 100£[ 1/16W R623 470£[ 1/16W C605 0.22uF ST_DET2 3 R605 10K£[ 1/16W Q601 PMBS3906 3 2 1 C607 0.001uF VCPU VCC12V R612 NC R611 NC LEFT R633 NC VCC5V onBACKLITE2 C609 0.001uF AD0 4 CN602 CONN 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 onPANEL_5V/3.3V2 R601 10K£[ 1/16W LED_B OUT-L- AUTO LED_G OUT-R- SDA 4 RIGHT Mute_key R640 NC OUT-L+ R610 NC R604 10K£[ 1/16W R617 120£[ 1/16W VCC5V 2,3,4 C602 22pF RXD 3 C614 NC R643 NC LEFT OUT-R+ RN602 10K£[ 1/16W 1 2 3 4 8 7 6 5 Reset Circuit LED_O R602 10K£[ 1/16W VCPU 2 VCPU C618 0.1uF INT 4 LED_B ST_DET1 3 LED_GRN AUTO VCPU R621 470£[ 1/16W R606 10K£[ 1/16W OUT-L- FB602600 OHM AD1 4 VCC5V U601 W78E65P-40 35 21 20 10 14 15 16 17 2 3 4 5 6 7 8 9 43 42 41 40 39 38 37 36 24 25 26 27 28 29 30 31 19 18 32 33 13 11 22 44 12 EA/VP XTAL1 XTAL2 RESET INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7 P3.7/RD P3.6/WR PSEN ALE/P P3.1/TXD P3.0/RXD VSS VCC P4.3 VCPU LED_ORANGE CN603 NC 1 2 3 4 1 2 3 4 DVI-DSUB SELECT OUT-L+ C617 100pF R613 10K£[ 1/16W R616 4.7K£[ 1/16W Q602 PMBS3906 3 2 1 R625 10K£[ 1/16W C611 1uF/25V LED_G R614 10K£[ 1/16W R622 470£[ 1/16W R642 0£[ 1/16W C610 0.001uF R638 NC CSZ 4 R635 100£[ 1/16W R627 10K£[ 1/16W LED_BLUE U602 AT24C16N-10SC-2.7 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC C615 NC LED_O VCPU DDC_CLK 3 Mute_key Q604 NC 3 2 1 VCPU OUT-R+ R609 100£[ 1/16W POWER FB603 600 OHM R629 4.7K£[ 1/16W VCPU AD2 4 C601 0.1uF ENTER R641 NC U603 MAX810STR 1 2 3 GND RST VCC R632 NC VCPU R628 0£[ 1/16W MPU D MST8031 / MST8131 for AOC B 6 6 Wednesday, July 21, 2004 Title Size Document Number Rev Date: Sheet of SCL 4 R637 470£[ 1/16W Standby R618 120£[ 1/16W Q603 PMBS3906 3 2 1 R631 NC TXD 3 53 Power 54 Audio GND GND + C202 470uF/16V CN204 33L8022-3A-H FEMALE 1 2 3 CN202 WAFER 2*7P 2.54mm 2 4 6 8 10 12 14 1 3 5 7 9 11 13 C213 0.1uF GND GND + C210 1.0uF STANDBY + C209 1.0uF R208 1K£[ OUT_L C203 0.1uF + C207 470uF/16V R211 5.6K£[ OUT_R +12V 12V + C205 470uF/16V GND R212 220K£[ CN203 WAFER 4P2.0 R/A 1 2 3 4 R207 1K£[ + C208 470uF/16V R201 10K£[ U201 TDA7496L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GND GND GND INL VAROUT_L VOLUME VAROUT_R NC INR SVR STBY MUTE GND OUTR VS VS OUTL GND GND GND GND C212 100 pF C211 100 pF C204 0.47uF C206 0.47uF GND R210 5.6K£[ R203 10K£[ C214 100 pF VOLUME MUTE GND C215 100 pF GND + C201 470uF/16V 55 Power board (adapter + inverter) R925 1K/0805 3.3V FG A_R C912 0.1U/0805/Y5V F901 2.5A/250V CN902 CONN 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 FB902 BEAD Q902 2N3906 PC_R_IN R912 20K/0805/N.C R903 100K_2W R927 2.43K/0805_1% C904 0.47uF/275V + C915 2200UF/16V V12B + C914 2200UF/16V R909 10/1206 +12V connect pitch 2.5mm R902 1M/1206 R916 4.7K/0805 C911 0.1uF/50V V12A CN901 1 2 3 C910 102P_50V D901 FR107 80LL19T-3-T R906 1M/1206 - + BD901 GBU405 2 1 3 4 IC903 HTL431 ZD902 12V/SMD C903 0.1uF/275V SG6841 IC901 1 3 4 7 2 5 6 8 GND Vin RI VDD FB RT SENSE GATE SW901 SW SPST R926 9.31K/0805_1% VOLUME C901 102PF/250V R918 4.7K/0805 R907 1M/1206 R919 47_1/2W_M ON/OFF L903 73L-253-91L 1 2 R921 240/1206 C908 0.1U_50V R923 0/0805 C917 0.1UF/0805/Y5V R917 100/0805 R913 20K/0805 R901 1M/1206 R905 1M/1206 STBY Q901 2SK2996 1 2 3 C906 152P/1KV Q903 2N3904 BRIGHT R914 0.3_2W + C920 1000UF/16V C919 0.01U/50V/X7R J901 JUMPER1 1 2 C921 4700PF/250V FB901 BEAD D903 1N4148/SMD C909 N.C R915 4.7K/0805 R910 0/0805 L902 1 4 2 3 +12V + C907 22UF/50V R908 3R3/1206 +5V PC_L_IN C913 102P_500V C902 102PF/250V F902 5A/24V/1206 + C916 470UF/16V + C905 150uF/400V C950 N.C R911 24K/0805_1% ZD901 RLZ20B D902 PS102R IC902 PC123FY2 4P 1 2 4 3 R904 1M/1206 A_L R922 1K/0805 R920 47_1/2W_M C918 0.1U/50V/X7R D910 MOSPEC20100 O O O T901 PQ26/22.5 4 12 6 7 3 2 8 11 R924 1K/0805 L901 N.C_But jump 043,025 1 4 2 3 D911 MOSPEC20100 NR901 61L58-050-WT 56 R217 220£[ 1/16W C202 0.1uF/25V R238 12K£[ R203 10K£[ C222 0.47uF/63V D205 1N4148 R243 1K£[ R212 3.9K£[ C217 22pF/3KV TP3 HVL 1 Q209 KTD1691 1 2 3 D204 RLZ11B C218 22pF/3KV C213 0.22uF/160V R216 220£[ 1/16W Q208 MPS3906 1 3 2 D210 1N4148 C220 1uF/25V PT202 POWER X'FMR_80LL19T-1-YS 5 9 3 6 7 1 2 4 J201 JUMPER1 1 2 C224 1uF/25V D202 SR24 R221 15K£[ CN201 1 2 R211 18K£[ Q204 SI4431DY-T1 4 8 5 6 7 3 2 1 R205 47K£[ L202 120UH D201 SR24 R214 2.2K£[ 1/16W C228 0.001uF/25V R220 15K£[ R235 910£[ 1/4W R215 2.2K£[ 1/16W U201 TL1451ACNSR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CT RT 1IN+ 1IN- 1FBK 1DTC 1OUT GND Vcc 2OUT 2DTC 2FBK 2IN- 2IN+ SCP REF R244 1K£[ R206 47K£[ Q203 SI4431DY-T1 4 8 5 6 7 3 2 1 TP2 HVO 1 CN205 1 2 R237 910£[ C227 N.C D203 RLZ11B V12A C225 1uF/25V + C207 22uF Q210 KTD1691 1 2 3 C203 1uF/25V R227 1K£[ D209 1N4148 Q202 DTA144WKA 1 3 2 R223 12K£[ C205 0.1uF TP6 HVL 1 L204 CHOKE 1 4 2 3 Q206 MPS3904 AA R201 18K£[ D208 1N4148 CN203-N.C 1 2 TP5 HVL 1 CN204 1 2 R219 100£[ D206 1N4148 C216 22pF/3KV R224 1K£[ R225 1K£[ Q201 DTC144WKA CN206-N.C 1 2 R202 10K£[ TP8 HVL 1 L205-1&2-SHORT CHOKE 1 4 2 3 Q212 KTD1691 1 2 3 TP1 HVO 1 R209 4.7K£[ 1/16W R233 1K£[ R236 910£[ + C201 220uF/25V PT201 POWER X'FMR_80LL19T-1-YS 5 9 3 6 7 1 2 4 TP7 HVL 1 C206 0.1uF R241 51K£[ R226 1K£[ C214 0.22uF/160V BRIGHT L201 120UH C208 330pF R207 OPEN C210 1uF/25V C204 0.1uF Q211 KTD1691 1 2 3 L203 CHOKE 1 4 2 3 CN202 1 2 + C223 220uF/25V C226 N.C Q207 MPS3906 1 3 2 C211 1uF/25V D207 1N4148 ON/OFF L206-1&2-SHORT CHOKE 1 4 2 3 C219 1uF/25V R204 10K£[ R232 1K£[ R210 18K£[ R222 12K£[ C228 0.001uF/25V R234 910£[ 1/4W R218 100£[ TP4 HVL 1 BU_L Q205 MPS3904 R213 3.9K£[ C215 22pF/3KV C212 1uF/25V C221 0.47uF/63V R240 51K£[ C209 1uF/25V R239 12K£[ R208 4.7K£[ 1/16W 57 Q102 PMBS3904 3 2 1 FB101 BEAD Q101 AO4411 4 8 5 6 7 3 2 1 + C103 1000uF/16V R110 3.6K£[ 1/16W C113 NC C114 1uF/50V FP5001 IC101 FP5001DR 1 6 7 5 2 8 3 4 Vo DTC RT SCP Vcc GND COMP FB R113 390£[ 1/16W R116 3.6K£[ 1/16W + C101 470uF/16V 12V R109 3K£[ 1/16W R108 47K£[ 1/16W + C106 470uF/16V R115 100£[ 1/16W C112 0.1uF/25V R114 1K£[ 1/16W 3.3V + C108 470uF/16V R107 0£[ 1/16W R112 2.7K£[ DIP C110 0.1uF / 0603 R105 0£[ 1/16W IC102 AIC1084-33CT 3 1 2 VIN ADJ Vout C107 0.1uF/25V C111 0.1uF/25V C102 0.1uF/25V D101 SR54 Q103 PMBS3906 3 2 1 R106 33K£[ 1/16W +5V C115 0.1uF/25V R104 N.C + C109 470uF/16V L101 45uH R111 15K£[ DIP 58