Fujitsu FSC P20W-3 Service Manual
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Fujitsu FSC P20W-3 Service Manual

20” lcd color monitor
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20" LCD Color Monitor
Service
Service
Service
Description
Table Of Contents..........................................................1
Revision List.................................................................2
Important Safety Notice...............................................3
1.Monitor Specification...............................................4
2.LCD Monitor Description........................................5
3.Operation Instruction............................................6
3.1.General Instructions.........................................6
3.2.Control Button......................................................6
3.3 Adjusting the Picture..........................................7
4.Input/Output Specification.......................................10
4.1.Input Signal Connector.........................................10
4.2.Factory Preset Display Modes.........................12
4.3.Power Supply Requirements.........................12
4.4.Panel Specification.........................................13
5.Block Diagram.........................................................15
5.1.Software Flow Chart........................................15
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

TABLE OF CONTENTS

Page
Description
5.2.Electrical Block Diagram.............................17
6.Schematic......................................................18
6.1.Main Board................................................18
6.2.Power Board..............................................27
7.PCB Layout........................................................29
7.1.Main Board.................................................29
7.2.Power Board..............................................32
7.3.Key Board...................................................35
8.Maintainability................................................36
8.2.Trouble Shooting..........................................36
10.Exploded View.......................................44
11.BOM List........................................................46
12.Different Parts List................................................61
SAFETY NOTICE
-1-
FSC P20W-3
Horizontal Frequency
30kHz - 82kHz
Page

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Summary of Contents for Fujitsu FSC P20W-3

  • Page 1: Table Of Contents

    20” LCD Color Monitor FSC P20W-3 Service Service Service Horizontal Frequency 30kHz – 82kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……....……...…..1 5.2.Electrical Block Diagram…………..…..…..17 Revision List.…......………....……..2 6.Schematic…………….......…..18 Important Safety Notice.………….…....……..3 6.1.Main Board......…....18 1.Monitor Specification......………..4 6.2.Power Board..……........27 2.LCD Monitor Description……………………………..5 7.PCB Layout..…………..........29...

  • Page 2: Revision List

    20” LCD Color Monitor FSC P20W-3 Revision List Revision Date Revision History TPV Model Name Jul-31-2007 Initial Release TA7GM3DBIWM7DC TA7GM3DBIWM78C Nov-02-2007 The Second Release TA7AM3DBIW1MDC...

  • Page 3: Important Safety Notice

    20” LCD Color Monitor FSC P20W-3 Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations.

  • Page 4: Monitor Specification

    20” LCD Color Monitor FSC P20W-3 1. Monitor Specifications Item Specification System 51cm (20") color LCD Active Area 433.44 x 270.90mm Pixel Pitch 0.258mm (H) /0.258 mm (V) Resolution 1680 x 1050 Panel Display Colors 16.7M (8-bit) Contrast 1000:1(type) Luminance 300cd/m²(type)

  • Page 5: Lcd Monitor Description

    20” LCD Color Monitor FSC P20W-3 2. LCD Monitor Description The LCD MONITOR will contain a main board, a power board, a sensor board and a key board which house the flat panel control logic, brightness control logic and DDC.

  • Page 6: Operation Instruction

    20” LCD Color Monitor FSC P20W-3 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located in the front of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.

  • Page 7: Adjusting The Picture

    20” LCD Color Monitor FSC P20W-3 3.3 Adjusting the Picture To set the OSD menu, perform the following steps:...
  • Page 8 20” LCD Color Monitor FSC P20W-3...
  • Page 9 20” LCD Color Monitor FSC P20W-3...

  • Page 10: Input/Output Specification

    20” LCD Color Monitor FSC P20W-3 4. Input/Output Specification 4.1 Input Signal Connector D-Sub Input DVI Input -10-...
  • Page 11 20” LCD Color Monitor FSC P20W-3 HDMI monitor connections -11-...

  • Page 12: Factory Preset Display Modes

    20” LCD Color Monitor FSC P20W-3 4.2 Factory Preset Display Modes The picture position and size have been set to optimum values at the factory for the operating modes listed above. Depending on the screen controller used, it may be necessary to adjust the display position and size. In this case,...

  • Page 13: Panel Specification

    20” LCD Color Monitor FSC P20W-3 4.4 Panel Specification 4.4.1 LCD DEFINITION Item First source Manufacturer: Size: 20-inch Type: LM201WE3-TLH2 Features: Advanced TN, Hi-FRC Active display area 433.44 x 270.90mm Display colors 16.7 (Hi-FRC) Resolution 1680 x 1050 dots Dot pitch 0.086 mm (H) / 0.258 mm (V)
  • Page 14 20” LCD Color Monitor FSC P20W-3 MECHANICAL FAULTS ITEM INSPECTION CRITERIA NOTE Accept Reject 0.01 < W ≤ 0.1 W > 0.1 Polarizer scratch 0.3 < L ≤ 4.0 L > 4.0 N ≤ 3 N > 3 0.08 < W ≤ 0.1 W >...

  • Page 15: Block Diagram

    20” LCD Color Monitor FSC P20W-3 5. Block Diagram 5.1 Software Flow Chart -15-...
  • Page 16 20” LCD Color Monitor FSC P20W-3 1) MCU initialize. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? 6) Clear all global flags.

  • Page 17: Electrical Block Diagram

    20” LCD Color Monitor FSC P20W-3 5.2 Electrical Block Diagram 5.2.1 Scalar Board Block Diagram Crystal LCD Interface 24MHz (CN401) (X402) Scalar MST6251DA-LF-165 MTV416GMV (Include ADC, OSD) (U402) (U401) MSDA Digital H sync MSCL Video CLOCK V sync Data Key Board Control...
  • Page 18 20” LCD Color Monitor FSC P20W-3 5.2.2 Power Board Block Diagram AC input Rectifier Bridge Rectifier Transformer EMI filter Diodes and Filter Start Circuit CN902 R903, R904, R905 Over Voltage Control IC Protect ON/OFF Output DC Convert MOSFET Q805, Q806,...

  • Page 19: Schematic

    20” LCD Color Monitor FSC P20W-3 6. Schematic 6.1 Main Board - 19 -...
  • Page 20 20” LCD Color Monitor FSC P20W-3 - 20 -...
  • Page 21 20” LCD Color Monitor FSC P20W-3 - 21 -...
  • Page 22 20” LCD Color Monitor FSC P20W-3 - 22 -...
  • Page 23 20” LCD Color Monitor FSC P20W-3 - 23 -...
  • Page 24 20” LCD Color Monitor FSC P20W-3 - 24 -...
  • Page 25 20” LCD Color Monitor FSC P20W-3 - 25 -...
  • Page 26 20” LCD Color Monitor FSC P20W-3 - 26 -...

  • Page 27: Power Board

    20” LCD Color Monitor FSC P20W-3 6.2 Power Board - 27 -...
  • Page 28 20” LCD Color Monitor FSC P20W-3 - 28 -...

  • Page 29: Pcb Layout

    20” LCD Color Monitor FSC P20W-3 7. PCB Layout 7.1 Main Board - 29 -...
  • Page 30 20” LCD Color Monitor FSC P20W-3 - 30 -...
  • Page 31 20” LCD Color Monitor FSC P20W-3 - 31 -...

  • Page 32: Power Board

    20” LCD Color Monitor FSC P20W-3 7.2 Power Board - 32 -...
  • Page 33 20” LCD Color Monitor FSC P20W-3 - 33 -...
  • Page 34 20” LCD Color Monitor FSC P20W-3 - 34 -...

  • Page 35: Key Board

    20” LCD Color Monitor FSC P20W-3 7.3 Key Board - 35 -...

  • Page 36: Maintainability

    20” LCD Color Monitor FSC P20W-3 8. Maintainability 8.1 Equipment and Tools Requirement 1、Voltmeter. 2.、Oscilloscope. 3、Pattern Generator. 4、DDC Tool with Compatible Computer. 5、Alignment Tool 6、LCD Color Analyzer. 7、Service Manual. 8、User Manual. 8.2 Trouble Shooting 8.2.1 Main Board No power No power...
  • Page 37 20” LCD Color Monitor FSC P20W-3 No picture (LED orange) No picture The button if under control Measure U707 PIN2=3.3V U705 PIN 2=1.8V; U704 PIN 2=2.5V Check CN701 or replace U707, U705, U704 X401，X402 oscillate waveforms are normal Replace X401，X402...
  • Page 38 20” LCD Color Monitor FSC P20W-3 White screen White Screen Measure Q704 base X401,X402 oscillate is low level? waveform is normal Replace X401,X402 Check Q704, U702 is broken Check U402 or CN401 solder? Replace U402 Check Correspondent Check reset circuit of component.
  • Page 39 20” LCD Color Monitor FSC P20W-3 8.2.2 Power/Inverter Board No power Check CN902 pin3, 4 = 12V pin7,8＝5V Check AC line volt 110V or 220V Check AC input Check the voltage of C903 (+) Check bridge rectified circuit and F901 circut...
  • Page 40 20” LCD Color Monitor FSC P20W-3 No Backlight Check F801=12V Check adapter and F801 Check ON/OFF signal Check Interface board or main board Check U801 PIN2=5V Change on/off circuit Check U801 PIN13 have triangle wave Change U801 Check U801 PIN1/PIN15 PWM wave...
  • Page 41 20” LCD Color Monitor FSC P20W-3 8.2.3 Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Replace Button Switch Is Button Switch normally? Is Key Pad Board normally? Replace Key Pad Board...

  • Page 42: White-Balance, Luminance Adjustment

    20” LCD Color Monitor FSC P20W-3 9. White-Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding White-Balance adjustment. 1. How to do the Chroma-7120 MEM. Channel setting A. Reference to chroma 7120 user guide B. Use “SC” key and “NEXT” key to modify x, y, Y value and use “ID” key to modify the TEXT description Following is the procedure to do white-balance adjust 2.
  • Page 43 20” LCD Color Monitor FSC P20W-3 C. Adjust 6500 color-temperature 1. Switch the chroma-7120 to RGB-Mode (with press “MODE” button) 2. Switch the MEM. Channel to Channel 9(with up or down arrow on chroma 7120) 3. The LCD-indicator on chroma 7120 will show x = 315±15, y = 325 ±15, Y > 240 cd/m2 4.

  • Page 44: Exploded View

    20” LCD Color Monitor FSC P20W-3 10. Exploded View - 44 -...
  • Page 45 20” LCD Color Monitor FSC P20W-3 - 45 -...

  • Page 46: Bom List

    20” LCD Color Monitor FSC P20W-3 11. BOM List TA7GM3DBIWM7DC Location TPV Part No. Description 001G6017 1 THUMB-SCREW 007G 1 L 1 WOODEN PALLET 019G6034 1 STOPPER PIN 044G9003220 CORNER PAPER 050G 600 1 W WHITE STRAP 052G 1185 MIDDLE TAPE...
  • Page 47 20” LCD Color Monitor FSC P20W-3 A34G0402 EF 1B RING COVER A34G0403 BT 1B 30 REAR COVER(20) CBPC7GM31MQ1 MAIN BOARD CN701 033G3802 9 WAFER 9P RIGHT ANELE PITCH CN602 033G3802 4H WAFER 4P RIGHT ANGLE CN403 033G3802 6H WAFER 6P RIGHT ANGLE PITCH 2.0...
  • Page 48 20” LCD Color Monitor FSC P20W-3 RP401 061G 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP408 061G 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W RP407 061G 125101 8 RST CHIP AR 8P4R 100 OHM +-5% 1/16W...
  • Page 49 20” LCD Color Monitor FSC P20W-3 R711 061G0603102 RST CHIP 1K 1/10W 5% R710 061G0603102 RST CHIP 1K 1/10W 5% R501 061G0603102 RST CHIP 1K 1/10W 5% R462 061G0603102 RST CHIP 1K 1/10W 5% R409 061G0603102 RST CHIP 1K 1/10W 5%...
  • Page 50 20” LCD Color Monitor FSC P20W-3 R127 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R128 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R407 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R419 061G0603103 RST CHIPR 10 KOHM +-5% 1/10W R420 061G0603103...
  • Page 51 20” LCD Color Monitor FSC P20W-3 R414 061G0603560 RST CHIPR 56 OHM +-5% 1/10W R413 061G0603560 RST CHIPR 56 OHM +-5% 1/10W R412 061G0603560 RST CHIPR 56 OHM +-5% 1/10W R411 061G0603560 RST CHIPR 56 OHM +-5% 1/10W R138 061G0603750...
  • Page 52 20” LCD Color Monitor FSC P20W-3 C626 065G0603104 32 CHIP 0.1UF 50V X7R C631 065G0603104 32 CHIP 0.1UF 50V X7R C632 065G0603104 32 CHIP 0.1UF 50V X7R C633 065G0603104 32 CHIP 0.1UF 50V X7R C634 065G0603104 32 CHIP 0.1UF 50V X7R...
  • Page 53 20” LCD Color Monitor FSC P20W-3 C415 065G0603104 32 CHIP 0.1UF 50V X7R C414 065G0603104 32 CHIP 0.1UF 50V X7R C413 065G0603104 32 CHIP 0.1UF 50V X7R C412 065G0603104 32 CHIP 0.1UF 50V X7R C408 065G0603104 32 CHIP 0.1UF 50V X7R...
  • Page 54 20” LCD Color Monitor FSC P20W-3 C650 065G0603105 12 CHIP 1UF 16VX7R 0603 C649 065G0603105 12 CHIP 1UF 16VX7R 0603 C407 065G0603220 31 CER1 0603 NP0 50V 22P PM C410 065G0603220 31 CER1 0603 NP0 50V 22P PM C435 065G0603220 31...
  • Page 55 20” LCD Color Monitor FSC P20W-3 C705 065G1206106 17 CHIP 1UF Z 16V Y5V C411 065G1206106 17 CHIP 1UF Z 16V Y5V C402 065G1206106 17 CHIP 1UF Z 16V Y5V C769 065G1206106 17 CHIP 1UF Z 16V Y5V C767 065G1206106 17...
  • Page 56 20” LCD Color Monitor FSC P20W-3 ZD117 093G 64 49 SU DIODE ESD EGA 10603V05A1-B INPAQ ZD116 093G 64 49 SU DIODE ESD EGA 10603V05A1-B INPAQ D109 093G 6432P LL4148 D108 093G 6433S DIODE BAV99 SEMTECH D107 093G 6433S DIODE BAV99 SEMTECH...
  • Page 57 20” LCD Color Monitor FSC P20W-3 ZD703 093G 39S 34 T UDZS5.6B ZD704 093G 39S 34 T UDZS5.6B ZD705 093G 39S 34 T UDZS5.6B 715G2485 1 SENSOR BOARD PCB PWPCA42SF1 POWER BOARD CN801 033G8021 2E AC WAFER CN802 033G8021 2E AC...
  • Page 58 20” LCD Color Monitor FSC P20W-3 A15G0114 1 EMI-BKT IC901 056G 379 76 IC LD7552BPS SOP-8 U801 056G 608 10 IC OZ9938GN-B SOIC-16 Q903 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q803 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q802 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q801 057G 417 4...
  • Page 59 20” LCD Color Monitor FSC P20W-3 R931 061G1206102 RST CHIPR 1 KOHM +-5% 1/4W R932 061G1206102 RST CHIPR 1 KOHM +-5% 1/4W R933 061G1206102 RST CHIPR 1 KOHM +-5% 1/4W R930 061G1206102 RST CHIPR 1 KOHM +-5% 1/4W R910 061G1206229 RST CHIPR 2.2 OHM +-5% 1/4W...
  • Page 60 20” LCD Color Monitor FSC P20W-3 R921 061G 20747052T 47 OHM 1/2W R822 061G212Y305 KT MGFR 3M OHM +-5% 1/2W R832 061G212Y305 KT MGFR 3M OHM +-5% 1/2W C936 065G 1K101 5T6921 100PF /1KV C935 065G 1K102 5T 1000PF/1KV C904 065G 1K152 1T 1.5NF/1KV Z5F+-10%...

  • Page 61: Different Parts List

    20” LCD Color Monitor FSC P20W-3 12. Different Parts List Diversity of TA7GM3DBIWM78C Compared with TA7GM3DBIWM7DC Location Part No. Description 041G 68508 A CONTROL CARD Q40G 582813 3A S/N LABEL Q44G9003 96 CORNER PAPER Q44GA036622 2A 20 LCD FSC CARTON...
  • Page 62 20” LCD Color Monitor FSC P20W-3 E09503 095G801410Q560 WIRE HARNESS 10P-6P 350MM E09504 095G8018 3D677 LVDS CABLE 30P-30P 160MM 750GLUA1W2832N000S PANEL M201EW02 V80B SZ AUO A15G0233 2 MAIN FRAME CBPC7AM31MQ2 MAIN BOARD G2651-2A-X-X-3-071027 R136 061G0603000 RST CHIPR 0 OHM +-5% 1/10W...

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