AOC TS185 Service Manual

AOC TS185 Service Manual

18.5" lcd color monitor

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18.5" 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.OSD Menu............................................................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........................................................15
5.1.Main Board......................................................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.Power Board.............................................16
6.Schematic.......................................................17
6.1.Main Board....................................................17
6.2.Power Board..................................................21
6.3.Key Board......................................................25
7.PCB Layout.....................................................26
7.1.Main Board....................................................26
7.2.Power Board..................................................28
7.3.Key Board....................................................31
8.Maintainability..................................................32
8.2.Trouble Shooting..........................................33
10.Monitor Exploded View.................................39
11.BOM List...................................................41
SAFETY NOTICE
AOC TS185
Horizontal Frequency
30-83 kHz
Page

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Summary of Contents for AOC TS185

  • Page 1: Table Of Contents

    18.5" LCD Color Monitor AOC TS185 Service Service Service Horizontal Frequency 30-83 kHz Table of Contents Description Page Description Page 5.2.Power Board……………..……………...…..16 Table of Contents..……......……..1 6.Schematic……………........17 Revision List.…........…………..2 6.1.Main Board………...........17 Important Safety Notice.……......……..3 6.2.Power Board...…….........21 1.Monitor Specification......………..4 6.3.Key Board...……..........25 2.LCD Monitor Description……………………………..5 7.PCB Layout..…………........26...
  • Page 2: Revision List

    Revision List Version Release Date Revision History TPV Model Name Aug.9.2011 Initial release T8AAR52EX81UAN...
  • 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 Driving system 18.5″W LCD Monitor with LED Backlight LCD Panel Size 47.0cm Pixel pitch 0.3mm( H )x0.3mm( V ) Video R,G,B Analog Interface Input H-Frequency 30kHz – 83kHz V-Frequency 55-75Hz Display Colors 16.7M Colors Dot Clock 85.5MHz Max.
  • Page 5: Lcd Monitor Description

    2. LCD Monitor Description The LCD monitor will contain a main board, an adapter board, a converter board and a key board which house the flat panel control logic, brightness control logic and DDC. The power part will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 6: 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. ...
  • Page 7  - / Volume-: Activates the volume control when the osd is off or adjust a function when function is activated.  + / Volume+: Activates the volume control when the osd is off or adjust a function when function is activated. ...
  • Page 8: Osd Menu

    3.3 OSD Menu 1. Press the MENU-button to activate the OSD window. 2. Press - or + to navigate through the functions. Once the desired function is highlighted, press the MENU-button to activate it. If the function selected has a sub-menu, press- or + again to navigate through the sub-menu functions.
  • Page 9 Main Menu Item Main Menu Icon Sub Menu Item Description Clock Adjust picture Clock to reduce Vertical-Line noise Focus Adjust Picture Phase to reduce Horizontal-Line Image Setup H.Position Adjust the horizontal position of the picture V.Position Adjust the vertical position of the picture Warm Recall Warm Color Temperature from EEPROM Normal...
  • Page 10 Main Menu Item Main Menu Icon Sub Menu Item Sub Menu Description H.Position Adjust the horizontal position of OSD V.Position Adjust the vertical position of OSD OSD Setup Timeout Adjust the OSD Timeout Language Select the OSD language Auto Config Auto adjust the picture to default DDC/CI Turn ON/OFF DDC/CI Support...
  • Page 11: Input/Output Specification

    4. Input/Output Specification 4.1 Input Signal Connector PIN NO. Description PIN NO. Description +5V/Sense(+5V) Green Monitor Gnd Blue Logic Gnd Logic Gnd DDC serial data Detect cable H sync Red Gnd V sync Green Gnd DDC serial Clk. Blue Gnd 15 - Pin Color Display Signal Cable 4.2 Factory Preset Display Modes Standard...
  • Page 12: Panel Specification

    4.3 Panel Specification 4.3.1 General Features This specification applies to the 18.5 inch-wide Color a-Si TFT-LCD Module M185XW01.The display supports the WXGA - 1366(H) x 768(V) screen format and 16.7M colors (RGB 6-bits + Hi-FRC data). All input signals are 1-channel LVDS interface and this module doesn’t contain an inverter board for backlight.
  • Page 13 4.3.3 Electrical Characteristics TFT LCD Module 1) Power Specification 2) Signal Electrical Characteristics DC Characteristics of each signal are as following: AC Characteristics...
  • Page 14 Backlight Unit Parameter guideline for LED driving is under stable conditions at 25 ℃ (Room Temperature): 4.3.4 Optical Characteristics The optical characteristics are measured under stable conditions at 25℃:...
  • Page 15: Block Diagram

    5. Block Diagram 5.1 Main Board Crystal 14.31818MHZ Panel Interface (CN405) (X401) Scaler RTD2270S-GR Flash Memory Key Control Interface MX25L2026DM1I (Include MCU, ADC, OSD) (CN408) (U402) (U401) H sync EEPROM V sync FM24C02A DDC1_SCL (U405) DDC1_SDA D-Sub Connector (CN101)
  • Page 16: Power Board

    5.2 Power Board Adapter Board: AC input 14.5V Bridge Rectifier Transformer EMI filter Rectifier diodes and Filter Start Resistor (R920, R921, R922) Feedback PWM Control Circuit (IC901) Photo coupler (IC902) Converter Board: D801 L801 14.5V (CN804) IC LED DRIVER MP3389EF (U801) On/Off...
  • Page 17: 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 18 AVDD VCC3.3 VCC1.8 VCC3.3 AVDD FB401 U401 VCC3.3 300OHM VCTRL VCTRL C403 C404 LVA3P 0.1uF/16V 0.1uF/16V DSUB_R+ RIN0P LVA3M DSUB_R- RIN0M PA[0..1] DSUB_G+ PA[0..1] GIN0P DSUB_G- GIN0M LVA2P DSUB_SOG SOGIN0 LVA2M DSUB_B+ BIN0P LVA1P DSUB_B- BIN0M LVA1M VCC1.8 DSUB_H HSY NC0 LVA0P DSUB_V VSY NC0...
  • Page 19 PANEL_VCC PA[0..1] PA[0..1] CN403 PA[4..9] PA[4..9] R477 R434 C420 330OHM1/4W NC/150R 1/4W 5% 0.1uF/16V PANEL_VCC CN405 PB[0..9] PB[0..9] CONN CMVCC NC/CONN CMVCC 4,5,7 C419 R433 0.1uF/16V R435 10K 1/16W 5% Q411 4K7 1/16W 5% Q405 NC/AO4411 AO3401 R436 100K 1/16W 5% PANEL_VCC PPWR_ON# Q404...
  • Page 20 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 21: Power Board

    6.2 Power Board Adapter Board 715G3189P02LED001S R904 30 OHM 1/4W L903 R927 R905 30 OHM 1/4W 0R05 4A 1/4W +14.5V C900 C910 C919 2N2 500V 2N2 500V 1000PF/250VAC Coil R906 30 OHM 1/4W ZD901 R918 MTZJ T-72 22B 250OHM2W C912 1000uF 25V T901 D903 31DQ10FC...
  • Page 22 +5V1 +5V1 R602 10K 1/10W C604 100uF/25V R603 10K 1/10W C609 1uF50V 2008-10-27 EE MODIFY 10K 1/10W R609 IC601 CN602 LOUT+ SE/BTL LOUTP CN601 VOLUME R604 10K 1/10W C601 0.47uF 16V LOUT- LINN LOUTN C606 0.47uF 16V ROUT- RINN ROUTN BY PASS R605 10K 1/10W...
  • Page 23 +5V1 R621 R622 ON/OFF_INPUT Q621 R620 BKLT-VBRI PANEL ON/OFF_OUTPUT R624 NC R623 0R05 1/10W +5V1 R626 R627 DIM_INPUT Q622 R625 2N3906S-RTK/PS BKLT-EN PANEL DIM_OUTPUT R629 NC R628 0R05 1/10W T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G3189-PO1-LED-X-8-091112...
  • Page 24 Converter Board 715G4128P03000004F CN801 D801 +14.5V R812 CONN L801 2009-12-09 C812 22uH 0R05 4A 1/4W CHANGE B3100B 1000pF630V R818 0R05 1/4W C809 U801 Q806 100UF 35V C803 Q801 0.47UF 50V P8008HV MP3389EF NC(AOD4126) C807 4.7UF 100V VFAULT R805 Gate R801 ON/OFF C801 GATE...
  • Page 25: Key Board

    6.3 Key Board 715G3584K01000004K LED_2# LED_1# LED01 CN001 LBADC2 R002 2K 1/10W 5% LBADC1 DC_POWERON R003 0R05 1/10W 5% LED_1# LED_2# R004 2K 1/10W 5% CONN C003 C004 R005 1K 1/10W 5% 0.1uF 50V 0.1uF 50V SGND SW001 (Power) (MENU) (UP) (DOWN) (OK)
  • Page 26: Pcb Layout

    7. PCB Layout 7.1 Main Board 715G3244 2 2...
  • Page 28: Power Board

    7.2 Power Board Adapter Board 715G3189P02LED001S...
  • Page 30 Converter Board 715G4128P03000004F...
  • Page 31: Key Board

    7.3 Key Board 715G3584K01000004K...
  • Page 32: 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 33: Trouble Shooting

    8.2 Trouble Shooting 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 power board and check connections Replace main board and check connections Replace key board and check connections...
  • Page 34 2. No Video (Power LED Blue) No Video (Power LED Blue) Press the power Replace the main board button is OK? Replace the power The end board and connection Replace the main The end board and connection Check the LVDS/FFC Replace the LVDS/FFC cable or panel cable or panel...
  • Page 35 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 36 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 37: White-Balance, Luminance Adjustment

    9. 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 simpl use “SC” key and “NEXT” Key to modify xyY value and use “ID”...
  • Page 38 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 ±20, y = 297 ±20, Y>150 4.
  • Page 39: Monitor Exploded View

    10. Monitor Exploded View...
  • Page 40 Description BEZEL KEY FUNTION LENS POWER KEY BOARD PANEL POWER BOARD MAIN BOARD SPEAKER MAINFRAME REAR COVER HINGE ASS'Y Part No. Description STAND COVER 0G1G1030 6120 SCREW(MAIN&POWER BOARD/MAIN_FRAME) STAND 0M1G1730 6120 SCREW(POWER BOARD/MAIN_FRAME) BASE TSS1 0M1G1740 10 47 CR3 SCREW(STAND/HINGE/REAR COVER) FOOT AM1G1740 10 47 CR3 SCREW(HINGE/STAND)
  • Page 41: Bom List

    11. BOM List Note: The parts information listed below are for reference only, and are subject to change without notice. Please go to http://cs.tpv.com.cn/hello1.asp for the latest information. T8AAR52EX81UAN Location Part No. Description Remark 040G 581909 1A PROTECT LABEL 052G 1211 B CONDUCTIVE TAPE 85MM *40MM *0.09MM 052G...
  • Page 42 BEZEL Q34G7044AED 3B0100 REAR COVER Q40G 18N624 3A RATING LABEL Q40G0002624A14 POP NU LOGO Q40G0002624B13 NU LOGO LABEL FOR CARTON Q41G19M1600 2A NO-BRAND TS185 UM Q44G8038600 1A CARTON Q45G 88609203 EPE BAG ECN405 S95G80183H92 HARNESS 30P-30P 140MM 033F100JR24E30 A10004A-S30-01 033F204H 30...
  • Page 43 033F303SM24K30 PK2407P30/TD00-30LH 040G 58162435A PN LABEL FOR MANUAL PE BAG Q26G 800504 2B BARCODE LABEL FOR 3 CN408 033G3802 6B Y CONN 6PIN 2.0 CN404 033G3802 9B Y CONNECTOR 9P 2.0 CN405 033G804330C H HR WAFER 2*15P 2.0PICTH 2nd source R480 061G152M229 64 2.2 OHM 2W 5% MOF...
  • Page 44 Q405 057G 763535 MOSFET LP3401LT1G -4.2A -30V SOT-23 R402 061G0402000 JI RST 0402 0.05R MAX 1/16W R461 061G0402000 JI RST 0402 0.05R MAX 1/16W R462 061G0402000 JI RST 0402 0.05R MAX 1/16W R481 061G0402000 JI RST 0402 0.05R MAX 1/16W R481 061G0402000 JT RST CHIPR MAX0R05 1/16W TZAI YUAN...
  • Page 45 R419 061G0402101 JY RST CHIPR 100 OHM +-5% 1/16W YAGEO R441 061G0402102 JI RST 0402 1K 5% 1/16W TA-I R441 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN R439 061G0402103 JI TEST ONLY RST 0402 10K 5% 1/16W TA-I R437 061G0402103 JI TEST ONLY RST 0402 10K 5% 1/16W TA-I...
  • Page 46 R476 061G0402470 JI RST 0402 47R 5% 1/16W R475 061G0402470 JI RST 0402 47R 5% 1/16W R476 061G0402470 JT RST CHIP 47R 1/16W 5% TZAI YUAN R475 061G0402470 JT RST CHIP 47R 1/16W 5% TZAI YUAN R485 061G0402472 JI TEST ONLY RST CHIP 4.7K 5% 1/16W TA-I R474 061G0402472 JI TEST ONLY RST CHIP 4.7K 5% 1/16W TA-I...
  • Page 47 C415 065G040210412K CAP CHIP 0402 100NF K 16V X7R C414 065G040210412K CAP CHIP 0402 100NF K 16V X7R C413 065G040210412K CAP CHIP 0402 100NF K 16V X7R C407 065G040210412K CAP CHIP 0402 100NF K 16V X7R C406 065G040210412K CAP CHIP 0402 100NF K 16V X7R C403 065G040210412K CAP CHIP 0402 100NF K 16V X7R...
  • Page 48 715G3244 2 2 MAIN PCB FR-4 D/S 65X64MM T1.6MM R109 061G04023900FY RST CHIP 390R 1/16W 1% R403 061G04023900FY RST CHIP 390R 1/16W 1% R468 061G0603201 JT RST CHIP 200R 1/10W 5% TZAI YUAN H40G 45762429A LABEL KEPC9QHL KEY BOARD SW001 077G 500 5J XL DOME SWITCH 5PCS CN001...
  • Page 49 R807 061G0603203 JF RST CHIPR 20K OHM +-5% 1/10W FENGHUA R807 061G0603203 JT RST 0603 20K 5% 1/10W R810 061G0603203 JT RST 0603 20K 5% 1/10W R819 061G06034702FF RST CHIPR 47KOHM +-1% 1/10W FENGHUA R819 061G06034702FT RST CHIP 47K 1/10W 1% R809 061G06039101FT RST CHIP 9K1 1/10W 1%...
  • Page 50 R804 061G06031003FY RST CHIP 100K 1/10W 1% CN801 033G803210F HR HF CONNECTOR 1.25MM 10P R829 061G0805109 JY RST CHIP 1R 1/8W 5% YAGEO R829 061G0805109 JF RST CHIPR 1 OHM +- 5% 1/8W FENGHUA C801 065G080547432K CAP CHIP 0805 0.47UF K 50V X7R C804 065G080547432K CAP CHIP 0805 0.47UF K 50V X7R...
  • Page 51 CN903 033G380210B Y CONNECTOR 10P 2.0 CN903 033G380210B Y WAFER 2nd source IC902 056G 139 3A PC123Y22FZOF SHARP IC601 056G 616 51 IC APA2071JI-TUG 3.1W DIP-16 NR901 061G 58 9T RST NTCR 10 OHM +-20% 5A THINKING C904 063G107K474 6S 0.47UF +-10% C904 063G107K474 US...
  • Page 52 D905 093G 60924 DIODE SR510-22 DO-201AD D903 093G 60924 DIODE SR510-22 DO-201AD CN902 095G 825 9D904 HARNESS 9P(SCN) - 9P 200MM FQE90829I CN902 095G 825 9X904 HARNESS 9P(SCN) - 9P 120MM LCDXXTF0358 2nd source 705GQ956024 IC901 ASS'Y IC901 056G 581 20 IC TOP255EN ESIP-7C 0M1G 930 8120 SCREW 3X8...
  • Page 53 R601 061G0603103 JT RST CHIP 10K 1/10W 5% TZAI YUAN R602 061G0603103 JY RST CHIPR 10KOHM £«-5£¥ 1/10W YAGEO R604 061G0603103 JY RST CHIPR 10KOHM £«-5£¥ 1/10W YAGEO R605 061G0603103 JY RST CHIPR 10KOHM £«-5£¥ 1/10W YAGEO R607 061G0603183 JT RST CHIP 18K 1/10W 5% TZAI YUAN R606 061G0603183 JT...
  • Page 54 R905 061G1206300 JF RST CHIPR 30 OHM +-5% 1/4W FENGHUA R906 061G1206300 JF RST CHIPR 30 OHM +-5% 1/4W FENGHUA R907 061G1206300 JF RST CHIPR 30 OHM +-5% 1/4W FENGHUA R908 061G1206300 JF RST CHIPR 30 OHM +-5% 1/4W FENGHUA R909 061G1206300 JF RST CHIPR 30 OHM +-5% 1/4W FENGHUA...
  • Page 55 C917 065G080510432K CAP CHIP 0805 0.1UF K 50V X7R C905 065G080510432K CAP CHIP 0805 0.1UF K 50V X7R C905 065G080510432K CAP CHIP 0805 0.1UF K 50V X7R C915 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% C917 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% C609 065G080510522K CAP 0805 1UF 10% 25V X7R...
  • Page 56 F601 084G 56 4 B FUSE 4A 250V F902 084G 56 4W FUSE 4A 250V F601 084G 56 4W FUSE 4A 250V ZD902 093G 3916752T MTZJ T-72 16B ZD901 093G 3916852T ZENER MTZJ T-72 22B 22V 0.5W DO-34 ZD902 093G 3954752T DIODE MTZJ16B SEMTECH ZD901 093G 39A6852T...

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