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19" 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 Instructions..................................................6
3.1. General Instructions..................................................6
3.2. Control Button....................................................6
3.3 Adjusting the Picture............................................7
4. Input/Output Specification.......................................9
4.1. Input Signal Connector.........................................9
4.2. Factory Preset Display Modes........................... 10
4.3. Panel Specification.........................................11
5. Block Diagram............................................................13
5.1 Software Flow Chart.........................................13
5.2.Electrical Block Diagram...............................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
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
FTD-W932HSR/WH
FTD-W932HSR/BK
TABLE OF CONTENTS
SAFETY NOTICE
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
Page
Description
6. Schematic.............................................................17
6.1 Main Board..........................................................17
6.2 Power Board.................................................22
6.3 Key Board....................................................25
7. PCB Layout...........................................................26
7.1. Main Board.........................................................26
7.2. Power Board........................................................28
7.3. Key Board............................................................29
8. Maintainability........................................................30
8.1.Equipments and Tools Requirement......................30
8.2.Trouble Shooting.................................................31
9. White-Balance, Luminance adjustment.................37
10. Monitor Exploded View....................................39
11. BOM List...............................................................40
12. Different Parts List.........................................53
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Buffalo FTD-W932HSR
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Summary of Contents for Buffalo FTD-W932HSR/WH
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Page 1: Table Of Contents
19" LCD Color Monitor Buffalo FTD-W932HSR Service Service Service FTD-W932HSR/WH FTD-W932HSR/BK TABLE OF CONTENTS Description Page Description Page Table Of Contents…………………………………………...1 6. Schematic……………..........17 Revision List………………………………………………..2 6.1 Main Board..………..........17 Important Safety Notice.……......……..3 6.2 Power Board………………………………………..22 1. Monitor Specification......…………..4 6.3 Key Board…………………...….……………………25 2. -
Page 2: Revision List
19" LCD Color Monitor Buffalo FTD-G932HSR Revision List Revision Version Date Customer Model TPV Model History FTD-W932HSR/WH T97HRHNJHTB1DN Oct.-11-08 Initial release FTD-W932HSR/BK T9RMRHNJAWB2DN... -
Page 3: Important Safety Notice
19" LCD Color Monitor Buffalo FTD-W932HSR 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
19" LCD Color Monitor Buffalo FTD-W932HSR 1. Monitor Specification... -
Page 5: Lcd Monitor Description
19" LCD Color Monitor Buffalo FTD-W932HSR 2. LCD Monitor Description The LCD Monitor will contain main board, power board, 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: Operation Instructions
19" LCD Color Monitor Buffalo FTD-W932HSR 3. Operation Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The 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: Adjusting The Picture
19" LCD Color Monitor Buffalo FTD-W932HSR 3.3 Adjusting the Picture OSD Settings • Press the MENU-button to activate the OSD window. • 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 8 19" LCD Color Monitor Buffalo FTD-W932HSR...
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Page 9: Input/Output Specification
19" LCD Color Monitor Buffalo FTD-W932HSR 4. Input/Output Specification 4.1 Input Signal Connector D-SUB... -
Page 10: Factory Preset Display Modes
19" LCD Color Monitor Buffalo FTD-W932HSR 4.2 Factory Preset Display Modes... -
Page 11: Panel Specification
19" LCD Color Monitor Buffalo FTD-W932HSR 4.3. Panel Specification 4.3.1 General Feature M190A1-L09 is a 19” wide TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1440 x 900 WXGA+ mode and can display 16.7M colors. The inverter module for Backlight is not built in. - Page 12 19" LCD Color Monitor Buffalo FTD-W932HSR 4.3.2 Electrical Characteristics TFT Module Back-light 4.3.3 Optical Characteristics...
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Page 13: Block Diagram
19" LCD Color Monitor Buffalo FTD-W932HSR 5. Block Diagram 5.1 Software Flow Chart... - Page 14 19" LCD Color Monitor Buffalo FTD-W932HSR REMARK: 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.
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Page 15: Electrical Block Diagram
19" LCD Color Monitor Buffalo FTD-W932HSR 5.2 Electrical Block Diagram Main Board Crystal LCD Interface (X401) (CN601) 24MHZ/30PF/49U Scalar IC RTD2525L RTD 2120L (Include ADC, OSD) (U401) (U501) EPR_SDA EPR_SCL H sync H sync V sync V sync Key Board... - Page 16 19" LCD Color Monitor Buffalo FTD-W932HSR Power Board AC input Rectifier Bridge Transformer EMI filter Diodes Rectifier and Filter Start Circuit CN902 R904, R932, R933 Feedback ON/OFF Control IC circuit MOSFET OSC and Q802, Q803 Output Convert Lamp ON/OFF Feedback...
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Page 17: Schematic
19" LCD Color Monitor Buffalo FTD-W932HSR 6. Schematic 6.1 Main Board CN201 CMVCC CMVCC MVCC FB202 CMVCC BKLT-VBRI DIM# BKLT-EN C_PANEL_INDEX CMVCC PANEL_ID# Volume# FB201 VCC3 Volume# U201 Mute Mute VOUT 120OHM CONN C202 C204 AP1117E33LA C205 C203 0.1uF/16V 0.1uF/16V... - Page 18 19" LCD Color Monitor Buffalo FTD-W932HSR DSUB_V R302 0R05 1/16W R301 100R 1/16W 5% RTD_H R303 100R 1/16W 5% RTD_V R304 R305 C302 C303 ZD302 ZD303 2K2 1/16W 5% FB302 C304 UDZSNP5.6B UDZSNP5.6B 2K2 1/16W 5% 33pF 33pF R306 100R 1/16W 5%...
- Page 19 19" LCD Color Monitor Buffalo FTD-W932HSR '06-11-24 D402 change Value from BAT54 to BAV70 150 OHM DVI_5V DSUB_5V FB401 2007-02-06 add for EMI CMVCC D402 BAV70 D401 D401 is Reserve for powerBoard CMVCC=3V CMVCC MCU_VCC_S MCU_VCC Q401 D403 PMBS3904 MCU_VCC_S...
- Page 20 19" LCD Color Monitor Buffalo FTD-W932HSR LVDS Panel ( FFC Type ) CN601 LVDS_O[0..9] RXO0- LVDS_O0 RXO0- RXO0+ LVDS_O1 RXO0+ RXO1- LVDS_O2 RXO1- RXO1+ LVDS_O3 RXO1+ RXO2- LVDS_O4 RXO2- RXO2+ LVDS_O5 RXO2+ RXOC- LVDS_O6 RXOC- RXOC+ LVDS_O7 RXOC+ RXO3- LVDS_O8...
- Page 21 19" LCD Color Monitor Buffalo FTD-W932HSR 1.8AVCC R1.8DVCC 0R05 1/10W 5% FB501 Q501 R1.8DVCC1 VCC3 KN2907AS Q502 C507 R507 3.3 OHM 2W FB503 C506 C501 KN2907AS 120OHM C505 0.1uF/16V 0.1uF/16V 0.1uF/16V C502 22uF/50V DGND VCC3 TMDS_VDD FB502 120OHM C503 0.1uF/16V...
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Page 22: Power Board
19" LCD Color Monitor Buffalo FTD-W932HSR 6.2 Power Board... - Page 23 19" LCD Color Monitor Buffalo FTD-W932HSR...
- Page 24 19" LCD Color Monitor Buffalo FTD-W932HSR...
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Page 25: Key Board
19" LCD Color Monitor Buffalo FTD-W932HSR 6.3 Key Board LED_RED# LED_GRN# LED001 green yellow CN001 LBADC1 R002 2K 1/10W LBADC2 DC_POWERON R003 0R05 1/10W 5% LED_GRN# LED_RED# C001 C002 C003 C004 C005 R004 2K 1/10W R005 1K 1/10W 5% NC/0.001uF NC/0.001uF... -
Page 26: Pcb Layout
19" LCD Color Monitor Buffalo FTD-W932HSR 7. PCB Layout 7.1 Main Board 715G2507 2 K... - Page 27 19" LCD Color Monitor Buffalo FTD-W932HSR...
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Page 28: Power Board
19" LCD Color Monitor Buffalo FTD-W932HSR 7.2 Power Board... -
Page 29: Key Board
19" LCD Color Monitor Buffalo FTD-W932HSR 7.3 Key Board... -
Page 30: Maintainability
19" LCD Color Monitor Buffalo FTD-W932HSR 8. Maintainability 8.1 Equipments and Tools Requirement 1. Multi-meter. 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with and Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 7. Service Manual. 8. User Manual. -
Page 31: Trouble Shooting
19" LCD Color Monitor Buffalo FTD-W932HSR 8.2 Trouble Shooting 8.2.1 Main Board No power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the power section Measure U201 Pin2=3.3V... - Page 32 19" LCD Color Monitor Buffalo FTD-W932HSR No picture (LED orange) No picture Measure U201 PIN2=3.3V Replace U201 X401 oscillate waveforms are normal Replace X401 Check U401 Replace U401 Check if the sync signal (CN301) from computer is output and video cable is...
- Page 33 19" LCD Color Monitor Buffalo FTD-W932HSR White screen White Screen Measure Q602 base X401 oscillate is low level? waveform is normal Replace X401 Check Q602, Q601 is broken Check U401 or CN601 solder? Replace U401 Check Correspondent Check reset circuit of component.
- Page 34 19" LCD Color Monitor Buffalo FTD-G932HSR 8.2.2 Power Board 1) No power Check whether the output voltage is 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit...
- Page 35 19" LCD Color Monitor Buffalo FTD-W932HSR 2.) No Backlight Check F801=12V Check adapter and F801 Check ON/OFF signal Check Interface board or main board Check IC801 PIN12=12V Change ON/OFF circuit Check IC801 PIN5 have triangle wave Change IC801 Check IC801 PIN9/PIN10 PWM wave...
- Page 36 19" LCD Color Monitor Buffalo FTD-W932HSR 8.2.3 Key Board OSD is unstable or not working Connect Key Pad Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Is Key Pad Board normally? Replace Key Pad Board...
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Page 37: White-Balance, Luminance Adjustment
19" LCD Color Monitor Buffalo FTD-W932HSR 9. White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. Before started adjust white balance , please set the Chroma-7120 MEM Channel 3 to Warm (6500K) color, MEM Channel 4 to Normal (7300K) color, MEM Channel 9 to Cool (9300K) color , and MEM Channel 10 to sRGB color ( our Warm color parameter is x = 313 ±20, y = 329 ±20, Y=180±30cd/m... - Page 38 19" LCD Color Monitor Buffalo FTD-W932HSR 5. Adjust the GREEN on factory window until chroma 7120 indicator reachedthe value G=100 6. Adjust the BLUE on factory window until chroma 7120 indicator reached the value B=100 7. Repeat above procedure (item 4, 5, 6) until chroma 7120 RGB value meet the tolerance =100±2 C.
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Page 39: Monitor Exploded View
19" LCD Color Monitor Buffalo FTD-W932HSR 10. Monitor Exploded View... -
Page 40: Bom List
19" LCD Color Monitor Buffalo FTD-W932HSR 11. BOM List T9RMRHNJAWB1DN Location Part NO. Description Remark 040G 58162435A P/N LABEL FOR MANUAL PE BAG 050G 600 2 HANDLE1 050G 600 3 HANDLE2 052G 1150 C INSULATING TAPE 052G 1185 1 BIG TAPE... - Page 41 19" LCD Color Monitor Buffalo FTD-W932HSR SMTCR-U401 100GJRM9000N11 MCU ASS'Y-056G1125701 X A15G0205 C2 2 MAINFRAME A33G0171AEE 1L FUNCTION BUTTON A33G0173AEE 1L 32 CABLE CLAMP A33G0182 1 1C POWER LENS A34G0287AEEA2B 30 BEZEL(L19WA-7K2) A34G0288AEE 1B REAR COVER 19" AM1G1740 12120 SCREW...
- Page 42 19" LCD Color Monitor Buffalo FTD-W932HSR R321 061G0402100 RST CHIPR 10 OHM +-5% 1/16W R320 061G0402100 RST CHIPR 10 OHM +-5% 1/16W R319 061G0402100 RST CHIPR 10 OHM +-5% 1/16W R318 061G0402100 RST CHIPR 10 OHM +-5% 1/16W R301 061G0402101...
- Page 43 19" LCD Color Monitor Buffalo FTD-W932HSR R326 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W R208 061G0402121 RST CHIP 120R 1/16W 5% R207 061G0402121 RST CHIP 120R 1/16W 5% R201 061G0402201 RST CHIP 200R 1/16W 5% R441 061G0402220 RST CHIPR 22 OHM +-5% 1/16W...
- Page 44 19" LCD Color Monitor Buffalo FTD-W932HSR C410 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C501 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C503 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C506 065G0402104 15 MLCC 0402 0.1UF K 16V X5R...
- Page 45 19" LCD Color Monitor Buffalo FTD-W932HSR D311 093G 64 33 DIO SIG SM BAV99 (PHSE)R D309 093G 64 33 DIO SIG SM BAV99 (PHSE)R D308 093G 64 33 DIO SIG SM BAV99 (PHSE)R D307 093G 64 33 DIO SIG SM BAV99 (PHSE)R...
- Page 46 19" LCD Color Monitor Buffalo FTD-W932HSR GND1 009G6005 1 GROUND TERMINAL CN102 033G3802 4 DH JF WAFER CN801 033G8021 2E F WAFER CN802 033G8021 2E F WAFER CN803 033G8021 2E F WAFER CN804 033G8021 2E F WAFER IC903 056G 139 3A...
- Page 47 19" LCD Color Monitor Buffalo FTD-W932HSR NR901 061G 58080 WT 8 OHM NCT 096G 29 10 H.S. TUBE 705GQ9KA 57001 Q901 ASS'Y 051G 200 1 OIL FOR DISAPPEAR Q901 057G 667 30 2SK2645 090G6263 1 HEAT SINK 0M1G1730 8120 SCREW 705GQ9KA 93001 D906 ASS"Y...
- Page 48 19" LCD Color Monitor Buffalo FTD-W932HSR R809 061G0603100 1F RST CHIPR 1 KOHM +-1% 1/10W R807 061G0603100 2F RST CHIPR 10K OHM +-1% 1/10W R817 061G0603100 2F RST CHIPR 10K OHM +-1% 1/10W R833 061G0603100 2F RST CHIPR 10K OHM +-1% 1/10W...
- Page 49 19" LCD Color Monitor Buffalo FTD-W932HSR R925 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R938 061G0805103 RST CHIPR 10K OHM +-5% 1/8W R924 061G0805151 RST CHIPR 150 OHM +-5% 1/8W R825 061G0805220 RST CHIPR 22 OHM +-5% 1/8W R829 061G0805220...
- Page 50 19" LCD Color Monitor Buffalo FTD-W932HSR C807 065G0603104 22 CAP CHIP 0603 0.1UF K 25V X7R C821 065G0603104 22 CAP CHIP 0603 0.1UF K 25V X7R C825 065G0603104 22 CAP CHIP 0603 0.1UF K 25V X7R C834 065G0603104 22 CAP CHIP 0603 0.1UF K 25V X7R...
- Page 51 19" LCD Color Monitor Buffalo FTD-W932HSR ZD902 093G 39S 40 T RLZ 13B LLDS ZD921 093G 39S 40 T RLZ 13B LLDS ZD905 093G 39S 44 T RLZ18B LLDS D915 093G 64S511SEM 1N4148W D903 093G 64S511SEM 1N4148W D817 093G 64S511SEM...
- Page 52 19" LCD Color Monitor Buffalo FTD-W932HSR Q44G9066894 1A 19 LCD BUFFLO CARTON Q45G 77 5 PE PACKING Q45G 88606 16 PE BAG FOR CLAMP Q45G 88607 34 PE BAG FOR BASE Q45G 88607 72 pe bag E08907 S89G179T30N9 FFC CABLE 089F80002203AG 1.0*30*2.5-220-3-0.65*0.05...
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Page 53: Different Parts List
19" LCD Color Monitor Buffalo FTD-W932HSR 14. Different Parts List Diversity T9RMRHNJAWB2DN compare of T9RMRHNJAWB1DN Location Part NO. Description Remark E08904 089G 17356G553 AUDIO CABLE 1800MM E08904 089G 17356H553 AUDIO CABLE 1800MM 2nd source E08902 089G 728GAA DB D-SUB CABLE...