AOC F19s Service Manual
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AOC F19s Service Manual

18.5" lcd monitor
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See also: User Manual
18.5" LCD Monitor
Service
Service
Service
Table of Contents....................................................1
Revision List...................................................................2
Important Safety Notice.................................................3
1.Monitor Specification...................................................4
2.LCD Monitor Description.........................................5
3.Operation Instruction.................................................7
3.1.General Instructions..................................................7
3.2.Control Buttons and Connections...............................7
3.3.OSD Settings............................................................8
4.Input/Output Specification........................................11
4.1.Input Signal Connector..........................................11
4.2.Factory Preset Display Modes................................11
4.3.Panel Specification...........................................12
5.Block Diagram............................................................16
5.1.Main Board.....................................................16
5.2.Power Board..................................................17
6.Schematic..........................................................18
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
6.1.Main Board.......................................................18
6.2.Power Board....................................................22
7.PCB Layout.........................................................24
7.1.Main Board......................................................24
7.2.Power Board.....................................................26
7.3.Key Board........................................................28
8.Maintainability.....................................................29
8.2.Trouble Shooting.............................................30
9. FOS Testing.............................................34
10.Firmware and DDC Instruction.......................38
12.Monitor Exploded View......................................51
13.BOM List......................................................52
SAFETY NOTICE
1
AOC F19s
Horizontal Frequency
30- 80kHz
Page

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Summary of Contents for AOC F19s

  • Page 1: Table Of Contents

    18.5" LCD Monitor AOC F19s Service Service Service Horizontal Frequency 30- 80kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.1.Main Board..…….…...........18 Revision List.…...........……..2 6.2.Power Board..……….........22 Important Safety Notice.….…......……..3 7.PCB Layout..………..........24 1.Monitor Specification......………....4 7.1.Main Board………..…........24 2.LCD Monitor Description……….……………………..5 7.2.Power Board….…..........26...

  • Page 2: Revision List

    Revision List Version Release Date Revision History TPV Model Name T8AAR5NKX8A1NNE Nov.-10-2010 Initial release T8AAR5NEX8A1NNE T8AAR5NPX8A1NNE Add new models T8AAR5NQX8A1NNE T8ACR5NCX8ACNNE Jan.-12-2011 Add second Panel T8ACR5NEX8A1NNE (CPT CLAA185WA03) T8ACR5NKX8A1NNE T8ACR5NPX8A1NNE Feb.-22-2011 Add new models T8ACR5NQX8A1NNE...

  • Page 3: Important Safety Notice

    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. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended.

  • Page 4: Monitor Specification

    1. Monitor Specifications Model number F19s Driving system TFT Color LCD Viewable Image Size 470mm diagonal Pixel pitch 0.3mm(H) x 0.3mm(V) LCD Panel Video R, G, B Analog lnterface Separate Sync. H/V TTL Display Color 16.7M Colors Dot Clock 85.5 MHz...

  • Page 5: Lcd Monitor Description

    2. LCD Monitor Description The LCD MONITOR will contain a main board, a power board, and a key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 6 View and Dimension...

  • Page 7: Operation Instruction

    3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. - The power cord should be connected.

  • Page 8: Osd Settings

    3.3 OSD Settings • Press the Menu (Power) button to activate the OSD window. Press left, right, up, down button to navigate through the functions. Once the desired function is highlighted, press the Menu (Power) button to activate sub-menu . •...
  • Page 9 Function Control Illustration Luminance Adjust Range Description Brightness 0-100 Backlight Adjustment Contrast 0-100 Contrast from Digital-register. Standard Mode Standard Text Mode Text Internet Mode Eco mode Internet Game Mode Game Movie Mode Movie Sports Mode Sports Gamma1 Adjust to Gamma1 Gamma Gamma2 Adjust to Gamma 2...
  • Page 10 Red Gain from Digital-register User Green Green Gain Digital-register. Blue Blue Gain from Digital-register Color Boost Disable or Enable Full Enhance Full Enhance on or off Mode Disable or Enable Nature Skin Nature Skin on or off Mode Disable or Enable Green Field Green Field on or off Mode...

  • Page 11: Input/Output Specification

    4. Input/Output Specification 4.1 Input Signal Connector Pin Number 15-Pin Side of the Signal Cable Video-Red Video-Green Video-Blue N.C. Detect Cable GND-R GND-G GND-B Ground N.C. DDC-Serial data H-sync V-sync DDC-Serial clock 4.2 Factory Preset Display Modes HORIZONTAL VERTICAL STAND RESOLUTION FREQUENCY(kHZ) FREQUENCY(Hz)

  • Page 12: Panel Specification

    4.3 Panel Specification 4.3.1 General Features AUO M185XW01 CPT CLAA185WA03 CLAA185WA03_V2 is 18.51” color TFT-LCD (Thin Film Transistor Liquid Crystal Display) module composed of LCD panel, driver ICs, control circuit and backlight. By applying 6bit+Hi-FRC digital data,1366*768, 16.7M-color images are displayed on the 18.51” diagonal screen. Input power voltage is 5.0V for LCD driving. Inverter for backlight is not included in this module.
  • Page 13 4.3.3 Electrical Characteristics 1. TFT LCD Module AUO M185XW01 (Ta= 25±2℃) CPT CLAA185WA03 Ta= 25±2℃，VCC=5.0V, Fh=47.28KHz, Fv=60Hz, Fclk=67.1MHz.
  • Page 14 2 .BackLight Unit AUO M185XW01 (Ta= 25±2℃) CPT CLAA185WA03...
  • Page 15 4.3.4 Optical Characteristics AUO M185XW01 (Ta= 25±2℃) CPT CLAA185WA03 Ta=25℃，VCC=5.0V...

  • Page 16: Block Diagram

    5. Block Diagram 5.1 Main Board 715G3244 2 2 TSUM1PFR SCHEMATIC XGA/SXGA LVDS OUTPUT DSUB_R+ DSUB_R+ VCC1.8 DSUB_R- DSUB_R- DSUB_G+ DSUB_G+ VCC3.3 DSUB_G- DSUB_G- VCC1.8 DSUB_SOG DSUB_SOG DSUB_B+ DSUB_B+ DSUB_B- DSUB_B- VCC3.3 CMVCC1 DSUB_H DSUB_H DSUB_V DSUB_V DDC1_SDA DDC1_SDA DDC1_SCL DDC1_SCL DET_CABLE DET_CABLE...

  • Page 17: Power Board

    5.2 Power Board 715G2852 2 11 AC input Bridge Transformer Rectifier EMI filter Rectifier diodes (T901) and Filter Start Resistor (R904,R932) Feedback Power Switch PWM Control Circuit (Q901) LD7575A (IC901) Photo coupler Regulator (IC902) (IC903) Output Transformer MOSFET Circuit (T801) (Q802) PWM Control Feedback...

  • Page 18: Schematic

    6. Schematic 6.1 Main Board 715G3244 2 2 FB102 R104 C101 H_Sy nc R101 0R05 1/10W 5% R102 100R 1/16W 5% VGA_B+ DSUB_H DSUB_B+ 5 V_Sy nc R103 100R 1/16W 5% BEAD DSUB_V 100R 1/16W 5% 0.047uF R107 C104 R105 R106 C102 C103...
  • Page 19 AVDD FB401 U401 VCC3.3 30OHM VCTRL VCTRL U402 C403 C404 LVA3P 0.1uF/16V 1UF 10V DSUB_R+ RIN0P LVA3M 010A Befor AOC ID2007 OSD DSUB_R- RIN0M PA[0..1] DSUB_G+ GIN0P PA[0..1] DSUB_G- GIN0M LVA2P 020A For ID2008 ID2009 DSUB_SOG SOGIN0 LVA2M DSUB_B+ BIN0P...
  • Page 20 PANEL_VCC PA[0..1] PA[0..1] CN403 PA[4..9] PA[4..9] NC/R477 R434 C420 330OHM1/4W 150R 1/4W 5% 0.1uF/16V PANEL_VCC CN405 PB[0..9] PB[0..9] AO3401L NC/CONN CMVCC CONN 2006-11-7 Add pull up 4K7 to MVCC CMVCC 4,5,7 C419 R433 0.1uF/16V R435 10K 1/16W 5% Q411 4K7 1/16W 5% Q405 NC/AO4411 AO3401...
  • Page 21 CMVCC CMVCC1 VCC3.3 VCC3.3 VCC3.3 4,5,6 CMVCC R480 R465 R437 R439 2.2 OHM 2W VCC1.8 10K 1/16W 5% 10K 1/16W 5% R479 CN404 BKLT-EN VCC1.8 CMVCC1 Q410 Q406 MMBT2907AK CMVCC 2N3904S-RTK/PS C432 C423 CMVCC1 4,5,6 CMVCC C425 BKLT-VBRI R450 R449 Q409 0.1uF/16V 100uF/25V...

  • Page 22: Power Board

    FUSE SHIELD(H85G0002-1) CONN HEAT SINK(Q901_Q90G6263-6) Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL F19S Size TPV MODEL 絬 隔 瓜 絪 腹 G2852-3-4-X-6-090818 PWPC9821GHD1 Key Component 2.POWER PCB NAME CN901 715G2852-3-4 ODM MODEL 称爹...
  • Page 23 10K 1/10W 1% 1K 1/8W 220pF50V 1K 1/10W 1% C817 C845 R862 2.2uF/16V 1M 1/10W 5% D814 LL4148 F19S T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom G2852-3-4-X-6-090818 TPV MODEL 絬 隔 瓜 絪 腹...

  • Page 24: Pcb Layout

    7. PCB Layout 7.1 Main Board 715G3244 2 2...

  • Page 26: Power Board

    7.2 Power Board 715G2852 2 11...

  • Page 28: Key Board

    7.3 Key Board 715G3010 1...

  • Page 29: Maintainability

    8. Maintainability 8.1 Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with an IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.

  • Page 30: Trouble Shooting

    8.2 Trouble Shooting 1. No Power No power Check power cable is Re-plug the power cable tightened? Check Power “On/Off” Turn on the Power “On/Off” switch is “On”? Check the LED Check the AC power indicate is OK? Replace the converter board Replace main board and check connections Replace key board and check connections...
  • Page 31 2. No Video (Power LED Blue) No Video (Power LED Blue) Press the power Replace the main board button is OK? Replace the converter The end board Replace the main The end board and connection Replace the LVDS/FFC Check the LVDS/FFC cable or panel cable or panel Replace the key board...
  • Page 32 3. DIM DIM (image overlap, focus or flicker) Reset in factory mode The end Set to the optimal The end frequency, select the recommended frequency Readjust the phase and pixel The end clock in the user mode Pull out signal cable and Check the signal cable check “Self Test Feature and the PC...
  • Page 33 4. Color is not optimal Color is not optimal Color shift Miss color Reset the factory mode Replace the signal cable In the user mode, set the” color settings” until customer satisfy The end Pull out the signal cable and check the screen color display is normal? Replace the signal cable or PC Replace the main board...

  • Page 34: Fos Testing

    9. FOS Testing 9.1 Brightness Measurement Max. Brightness >250 cd/㎡(typ). Test conditions: - Center of display - Video input (RGB) = 0,700V for Analog Input - Brightness control is set to max - Contrast control is set to max. Min. brightness measurement: <...
  • Page 35 1. 1366 x 768 (60 Hz), 2. Black pattern or White Half line pattern 1. 1366 x 768 (60 Hz), 2. Black pattern, Red H-Line pattern, Green pattern or Blue pattern. 1. 1366 x 768 (60 Hz), 2. Black pattern or White V-Line pattern 1.
  • Page 36 Abnormal 1.1366 x 768 (60 Hz), display 2. Gray scale pattern 1.1366 x 768 (60 Hz), Gray defect 2. Gray scale pattern 1.1366 x 768 (60 Hz), Video noise 2. Gray scale pattern 1.1366 x 768 (60 Hz), Color tint 2.
  • Page 37 1.1366 x 768 (60 Hz), Light 2. Black pattern or White leakage pattern 1.1366 x 768 (60 Hz), Fuzzy 2. Pane picture video...

  • Page 38: Firmware And Ddc Instruction

    10. Firmware and DDC Instruction 10.1 Firmware Instruction (Reatek 2Bank RTD2120 ISP SOP) Step 1:Connect 1. LPT cable connect PC and ISP board 2. VGA cable connect monitor and ISP board 3.Reference picture as below ISP board 715GT039-A Step 2：Software list： 1.LPT driver , Double click on the icon to install the Port95nt LPT 2.Driver ,Realtek 2blank ISP TOOL...
  • Page 39 Step 3: Below description use BENQ G900W model for example： 1.Open Realtek_ ISP_ Tool ver4.8 program tool，show it as below： old Version interface new Version interface 2.Select the “RTD 2120 ISP or NEW VER ISP” ，interface show as below： 3.If you program the 07 year model，there will only one F/W for it，Please Select the BANK 1. 4.If you use program two F/W model，Please Select the BOTH.
  • Page 40 5.Click on the 0～64K botoun to load BenQ_G900W_RTD2525LH_AUOM190P-W01_EU_DCR5_V003.hex file，show as below： 6.Click on the 64K～96K to load EXTEND file or OSD file .IF load BenQ_G900W_RTD2525LH_AUOM190P-W01_EU_DCR5_V003_EXTEND.hex file，show as below：...
  • Page 41 7.Click on the to start program ，if show“CheckSum OK”, you program it successfully . 8.At the same time, make sure the content “Checksum”in the red frame is in accordance with the frame at right corner loaded by software; if different, using the newest TOOL loading once more, if still no useful, maybe it’s a F/W bug;...
  • Page 42 2.Check “Model name” in FACTORY Service page, “panel”, & “F/W Version”:Version, data, whether the information is OK? 3. If all OK, set it to be “Gray Scale” or “---”pattern, select AUTO COLOR and running itself, the value of Gain & Offset will be gained automatism;...

  • Page 43: Ddc Instruction

    10.2 DDC Instruction （With DELL E178FP Model for example:） Configure and procedure System and equipment requirements (1). A Pentium (or above) personal computer or compatible with the print port (LPT Port). (2). Microsoft windows 98 and above. Recommend under windows XP. (3).
  • Page 44 (a) Open “ EDID” Folder, Double-click (b) Choose methods: Loadfile/ldddc/ The first letter of the brand/ size/ Customer mode Such as: choose “Analog” and then click “Loadfile/ldddc/D/DELL/17DEL/DELL E178FP”...
  • Page 45 (c) Input the MFD as shown PS: revise the time data (year/week) in PC system to make sure the time data is in accordance with that S/N shows. (d) Key/Scan in the SN and Verify SN, then click “Program”, when the analog DDC Write complete...
  • Page 46 (e) When appear “D-SUB: PASS!” writer finished. If it is writer digital EDID, appear writer finished. If it is writer HDMI EDID, appear “HDMI: PASS!” writer finished. (f) Click “read A(nolog) ” to Verify program is successful or not., digital EDID& HDMI EDID similarly. Click “read D”...
  • Page 47 Note：If the warning massages “Data compare ERROR” appears, Please refer to following check points. 1. You may forget to Pull out the cable to the signal generator, when start writing. If PIN 5 of the VGA cable port to the monitor is grounding, appear can read cannot write phenomenon, cut it(PIN 5). When write DVI EDID, appear can read cannot write phenomenon, please cut pin14 (the shortest pin) DVI cable port to the When write HDMI EDID, appear can read cannot write phenomenon, please cut pin 14(the shortest pin) HDMI cable port to the PC and after trying write.
  • Page 48 Click “READ” and it can be read, but can’t be written, please do as the below steps: 1. If analog EDID can’t be written, please cut pin9 which connect to the monitor. 2. If digital EDID can’t be written, please cut pin14 which connect to the monitor. 3.

  • Page 49: White-Balance,Luminance Adjustment

    11. White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. How to setting MEM channel you can reference to chroma 7120 user guide or simple use “SC” key and “NEXT” Key to modify xyY value and use “ID” key to modify the TEXT description Following is the procedure to do white-balance adjust .
  • Page 50 C. Adjust Cool (9300K) 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 = 283 ±30, y = 297 ±30, 4.

  • Page 51: Monitor Exploded View

    12. Monitor Exploded View...

  • Page 52: Bom List

    Q34G0445ABJ 1K ROTATION TUBE Q45G 76 28 H PE BAG FOR MANUAL Q50G 4 10 TIE (Y1900221) Q52G 1185 99 big carton tape for aoc Q52G6019 14 TAPE A19G0004 1 Spring-power A33G0350 X2 1L FUNCTION BUTTON A33G0351 KGA1C POWER BUTTON...
  • Page 53 R480 061G152M22964L SY RST MOFR 2.2 OHM +-5% 2WS FUTABA CN101 088G 35315F HD D-SUB CONN F ATTACHED SCREW X401 093G 22 53 YC Crystal 14.31818MHz/32PF 49U/S YC CN405 311GW200C30ABL WAFER 2.0mm 2*15P 709G3244 HM002 CONSUMPTIVE ASS'Y CN001 033G3802 6B YH WAFER SW005 077G 603 3 TO...
  • Page 54 U401 056G 562266 IC Scaler RTD2270S-GR LQFP-64 U404 056G 563 52 IC AP1117D33G-13 TO252-3L DIODES U102 056G 662502 IC ESD AZC199-04S.R7G SOT23-6L U103 056G 662502 IC ESD AZC199-04S.R7G SOT23-6L U405 056G1133531 EEPROM FM24C02A-SO-T-G 2K SOP-8 U402 056G2233501 FLASH MX25L2026DM1I-12G 2Mb SOP-8 Q406 057G 417 12 T KEC 2N3904S-RTK/PS...
  • Page 55 R427 061G0402392 JY NO-SUGGEST RST CHIPR 3.9KOHM 5% 1/16W YA R428 061G0402392 JY NO-SUGGEST RST CHIPR 3.9KOHM 5% 1/16W YA R476 061G0402470 JY NO-SUGGEST RST CHIPR 47 OHM 5% 1/16W YAG R475 061G0402470 JY NO-SUGGEST RST CHIPR 47 OHM 5% 1/16W YAG R485 061G0402472 JY RST CHIPR 4.7KOHM +-5% 1/16W YAGEO...
  • Page 56 FB102 071G 59K190 M CHIP BEAD 0603 19R/500mA FB103 071G 59K190 M CHIP BEAD 0603 19R/500mA FB401 071T 56300 TA CHIP BEAD 30OHM 5000mA HCB2012KF-300T50 D403 093G 64 42 L DIODE LBAV70LT1G SOT-23 LRC ZD103 093G 39GA01 T RLZ5.6B 709G3244 HS002 CONSUMPTIVE ASS'Y 715G3244 2 2 MAIN BOARD PCB...
  • Page 57 R808 061G0603100 2F RST CHIPR 10K OHM +-1% 1/10W R807 061G0603100 2F RST CHIPR 10K OHM +-1% 1/10W R862 061G0603105 RST CHIPR 1M OHM +-5% 1/10W R801 061G0603150 1F RST CHIPR 1.5 KOHM +-1% 1/10W R814 061G0603150 1F RST CHIPR 1.5 KOHM +-1% 1/10W R930 061G0603243 1F NO-SUGGEST RST CHIPR 2.43 KOHM +-1% 1/10...
  • Page 58 R902 061G1206684 NO-SUGGEST RST CHIPR 680 KOHM +-5% 1/4W C932 065G0603102 32 1000PF +-10% 50V X7R C842 065G0603103 32 CAP CHIP 0603 0.01UF K 50V X7R C834 065G0603103 32 CAP CHIP 0603 0.01UF K 50V X7R C825 065G0603104 22 CAP CHIP 0603 0.1UF K 25V X7R C821 065G0603104 22 CAP CHIP 0603 0.1UF K 25V X7R...
  • Page 59 J807 095G 90 23 JUMPER WIRE J809 095G 90 23 JUMPER WIRE J811 095G 90 23 JUMPER WIRE J812 095G 90 23 JUMPER WIRE J813 095G 90 23 JUMPER WIRE J901 095G 90 23 JUMPER WIRE J903 095G 90 23 JUMPER WIRE J904 095G 90 23...

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