IBM T860 9494-HWN Service Manual Download Page 1

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COLOR MONITOR
SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS
IN THIS MANUAL.

MODEL: T860 (9494-HBN), (9494-HWN)

T860 (9494-HB0), (9494-HW0)

Summary of Contents for T860 9494-HWN

Page 1: ...COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL T860 9494 HBN 9494 HWN T860 9494 HB0 9494 HW0...

Page 2: ...OWER SUPPLY 4 1 Power Adaptor Built in Power Input AC 100 240V 60 50 3Hz 1 0A 4 2 Power Consumption 5 ENVIRONMENT 5 1 Operating Temperature 10 C 35 C 50 F 95 F Ambient 5 2 Relative Humidity 10 80 Non...

Page 3: ...as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS Make certain that treatment person s body are grounded through...

Page 4: ...68 3 6 29 H 60 123 1312 1024 16 96 176 V 75 029 800 768 1 3 28 H 68 677 1376 1024 48 96 208 V 84 997 808 768 1 3 36 H 68 681 1456 1152 32 128 144 V 75 062 915 870 3 3 39 H 61 805 1504 1125 18 134 200...

Page 5: ...spend or power off mode its color changes to orange 2 Power ON OFF Button Switches the monitors on and off 3 ENTER Button 1 Displays main OSD menu 2 Enters highlighted menus and submenus 3 Selects hig...

Page 6: ...presets Icon Description H Position Moves the screen left and right V Position Moves the screen left and right Image Size This function displays the image in its original size or enlarged size so as...

Page 7: ...E MAIN PCB REAR SHIELD MATAL FRAME MATAL FRAME J702 J801 J705 P902 P903 J710 CN1 CN4 CN5 CN6 CN7 CN8 CN9 CN_C01 CN301 CN_C02 7 WIRING DIAGRAM Connector Ass y P N 6631T11012P Connector Ass y P N 6631T2...

Page 8: ...VDS Low Voltage Differential Signaling Data 48 Bit Address Inverte r CTL Module CTL R G B Inverter Digital Signal 3 3V Reg DVDD 3 3V AVD D 3 3V 12V Po we r CTL V Sync 5V 2 5V Reg DVDD2 5V AVD D2 5V 3...

Page 9: ...solution signal and outputs 8 bit R G B signal to transmitter Especially pre amp ADC Video controller are merged to one chip Gm5020 by Genesis Also FRC is separate 3 Display Data Transmitter Part LVDS...

Page 10: ...COMPONENTS LINE 100 240V INPUT RECTIFIER AND FILTER ENERGY TRANSFER OUTPUT RECTIFIER AND FILTER 12V 5V GND SIGNAL COLLENTION PHOTO COUPLER ISOLATION PWM CONTROL CIRCUIT HVDC 100KHz PRIMARY SECONDA RY...

Page 11: ...ndary through a power transformer 4 Output rectifier and filter This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle...

Page 12: ...attern at Mode 15 2 Set External Bright to MAX position and Contrast to MAX Position 3 Select PRESET START BIAS CAL command and Enter 4 No attempt to manually adjust BIAS data is auto matically adjust...

Page 13: ...BLE IN BULT IN POWER CHECK J801 5VST VOLTAGE 5V NO NO POWER POWER INDICATOR OFF TROUBLE SOMEWHERE ELSE TROUBLE IN BULT IN POWER CHECK J801 INPUT VOLTAGE 12V NO TROUBLE IN U501 or X501 NO YES YES YES C...

Page 14: ...ASTER TROUBLE IN POWER ADATER or L703 L704 CHECK J702 PIN 1 2 3 12V NO TROUBLE IN X501 CHECK X501 H PULSE NO TROUBLE IN U201 CHECK U201 GM5020 NO TROUBLE IN U201 NO TROUBLE IN U201 CHECK U301 U302 U30...

Page 15: ...T CLOCK PATTERN NO TROUBLE IN U201 NO CHECK DVS PATTERN NO CHECK DHS PATTERN NO YES YES YES YES YES TROUBLE IN LCD MODULE CHECK U401 PIN 8 V PULSE CHECK U401 PIN 7 V PULSE CHECK U401 PIN 10 PULSE CHEC...

Page 16: ...16 3 NO CLOCK CLOCK GENERATOR NO DOT CLOCK TROUBLE IN X201 CHECK X201 24MHz NO TROUBLE IN U201 CHECK L201 CLOCK NO YES YES...

Page 17: ...LE IN DPM TROUBLE IN DPM TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO TROUBLE IN X501 NO TROUBLE IN SIGNAL CABLE NO YES YES YES CHECK U501 PIN 6 WAVEFORM 24MHz CHECK R233 R234 CHECK U50...

Page 18: ...206 CA205 CA204 RA222 RA224 C271 R235 L K J H G F C548 C117 C118 C116 R704 C850 C844 U821 RA208 RA210 RA206 RA204 RA202 20 U201 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 C270 E D C B A 1 C278 C279...

Page 19: ...C239 C264 D702 D703 R712 C715 C714 C236 L203 L204 C235 C233 C237 R202 C228 C275 C269 C273 R240 D701 R150 D731 R714 R715 C514 R511 R524 C515 C257 C238 C272 C274 R139 R137 R138 R239 R140 R141 R142 R147...

Page 20: ...20 3 POWER BOARD Component Side 4 POWER BOARD Solder Side...

Page 21: ...21 5 CONTROL BOARD LED1 SW5 R4 SW4 R5 SW3 Model LI884E P N 6870TXXXXXX DATE 2001 11 30 SW2 R3 SW1 R1 R2 ZD2 ZD1...

Page 22: ...22 EXPLODED VIEW 1 15 16 11 10 a a c b 6 5 7 2 A 8 9 13 12 3 14 4...

Page 23: ...EMBLY 30P H H 100MM UL20276 PANEL LINK LB886F INVERTER ASSEMBLY ALPS KUBNKM030A 6 LAMP LB886F LI884E METAL ASSEMBLY FRAME MAIN LB886F PWB PCB ASSEMBLY MAIN LI884E AWLGB IBM CL 29 TOTAL PWB PCB ASSEMBL...

Page 24: ...DATE 2001 12 6 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C229 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C230 0CH6150K416 15PF 50V J NP0 2012 R TP C231 0CH6680K416 68PF 50V J NP0 2012 R TP C232 0CH668...

Page 25: ...6V 20 R TP SMD C835 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C836 0CK103CK51A 0 01UF 1608 50V 10 R TP B C840 0CE477EH618 470UF KMG 25V M FL TP 5 C841 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 MODEL T860 94...

Page 26: ...NO DESCRIPTION SPECIFICATION R154 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R155 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R201 0RH2001D622 2 0K 1 10W 5 D R TP R202 0RH2001D622 2 0K 1 10W 5 D R TP R203 0RJ1...

Page 27: ...608 R TP R767 0RJ0752D677 75 OHM 1 10 W 5 1608 R TP R768 0RJ1801D677 1 8K OHM 1 10 W 5 1608 R T R769 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R807 0RH0000D622 0 1 10W P TYPE TAPPING R809 0RJ2202D677 22K...

Page 28: ...5 TA52 R903 0RD3902A609 39K OHM 1 2 W 7 0 5 TA52 R906A 0RX5102J609 51KOHM 1 W 5 TA52 R906B 0RX5102J609 51KOHM 1 W 5 TA52 R907 0RD0102Q609 10 1 4W 3 5 TA52 R908 0RD0222Q609 22 1 4W 3 5 TA52 R909 0RD10...

Page 29: ...PWM5 VDD VSS VDD3 21 PTE0 SOG TCH0 PD1 D PD0 D PTA1 PWM9 PTA0 PWM8 PTA2 PWM10 PTD6 IICSDA PTD5 IICSCL PTD3 DDCSCL VSS1 PTD2 DDCSDA HSYNC PTB3 PWM3 PTB4 PWM4 40 39 38 37 36 35 34 33 32 31 30 29 28 27 2...

Page 30: ...ut HD Sync Signal detector Green 1 input Ground Blue 1 input Ground Red 2 input Ground Green 2 input Ground Blue 2 input VD 1 input HD 1 input HD 2 input HD output Red output Vcc Green output Composit...

Page 31: ...l I F 48 bits Output Control Output Data Path Timing Control Brightness Contrast Hue Saturation TMDS RX Video YUV 8 bits Digital TMDS Input FUNCTIONAL BLOCK DIAGRAM D0a D3b D3a D2b Vcc D2a D0b D1a D1b...

Page 32: ...ROL STATE COUNTERS SLAVE SCL A0 A1 VCC VSS A2 ADDRESS COMPARATORS CONTROL LOGIC ACK E PROM 2 PIN CONFIGURATION DIP Package p SOIX Package J TSSOP Package U BLOCK DIAGRAM PIN FUNCTION Pin Name A0 A1 A2...

Page 33: ...ns for device address selection To configure a device adress these pins should be connected to the Vcc of Vss of the device SDA I O SCL Input Bi directionl data pin for the I2C bus serial data interfa...

Page 34: ...O P See Application Circuit 1 5 6 3 2 Vin R1 Vout C1 R2 O N O F F R1 C1 Q 2 Q 1 Vout C1 4 PIN CONFIGURATION 1 Vcc 2 GND 3 OUTPUT 1 3 2 326 1 PARTS TYPE PARTS TYPE KA78M05R 1 INPUT 2 GND 3 OUTPUT 1 3 2...

Page 35: ...SCHEMATIC DIAGRAM 32 1 GM5020...

Page 36: ...33 2 MEMORY...

Page 37: ...34 3 LVDS...

Page 38: ...35 4 MICOM...

Page 39: ...36 5 DC DC...

Page 40: ...37 6 CONNECTOR...

Page 41: ...38 7 INPUT SWITCHING...

Page 42: ...39 8 CONTROL KEY...

Page 43: ...40 9 POWER...

Page 44: ...Dec 2001 Printed in Korea P NO 3828TSO049A...

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