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IBM L190(9329-AB9), Руководство по обслуживанию, Страница: 9 / 29

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- 9 -

Disassemble  inverter  shield  something thin.

# 9

# 10

# 11

# 12

# 13

# 14

Detach  Al-tape from panel.

Pull out the lamp cables

Remove  the 4 screws from  each side of metal
frame

1. Lift downside  of  metal frame
2. Pull out the  link cable

Remove te one screws for control pcb fix.

Содержание L190(9329-AB9)

Страница 1: ...COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL L190 9329 AB9 Chassis No CL 66 ...

Страница 2: ...ESOLUTION D sub Analog 1280 x 1024 76Hz 5 POWER SUPPLY 5 1 Power Adaptor Built in Power Input AC 90 264V 50 60Hz 1 0A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 6 2 Relative Humidity 10 80 6 3 MTBF 50 000 Hours Lamp Life 30 000 Hours to 50 initial luminance Half luminance 7 DIMENSIONS with TILT SWIVEL Width 408 mm 16 06 Depth 222mm 8 74 Height 413mm 16 26 8 WEIGHT with...

Страница 3: ...e module from the ESD as it may damage the electronic circuit C MOS Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short circuit within the module If the surface of panel become dirty please wipe i...

Страница 4: ...st receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices ...

Страница 5: ...tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coati...

Страница 6: ...onnection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on t...

Страница 7: ...nes 72 188 666 600 37 6 23 9 H Pixels 49 5 46 875 1056 800 16 80 160 800 x 600 V Lines 75 0 625 600 1 3 21 10 H Pixels 57 283 49 725 1152 832 32 64 224 832 x 624 V Lines 74 55 667 624 1 3 39 11 H Pixels 65 0 48 363 1344 1024 24 136 160 1024 x 768 V Lines 60 0 806 768 3 6 29 12 H Pixels 75 56 476 1328 1024 24 136 144 1024 x 768 V Lines 70 069 806 768 3 6 29 13 H Pixels 78 75 60 123 1312 1024 16 96 ...

Страница 8: ...Remove the three screws from the Back cover Please remove the screw cover at the Back cabinet then screw cover will be departed 2 3 4 5 6 1 Pull the front cover upward 2 Then let the all latches are separated 3 Put the front face down Disassemble back cover Pull the rear cover assy out from stand 7 8 ...

Страница 9: ... something thin 9 10 11 12 13 14 Detach Al tape from panel Pull out the lamp cables Remove the 4 screws from each side of metal frame 1 Lift downside of metal frame 2 Pull out the link cable Remove te one screws for control pcb fix ...

Страница 10: ...ower Inverter BRT CTL INV CTL gmZAN3SL ADC Scaling PLL OSD LVDS Transmitter Panel MCU EEPROM System LVDS Analog R G B D Sub To Key Control 5V 3 3 V 1 8 V Regulator 3 3 V 1 8 V Switch System 5 V MOD ON 5V BLOCK DIAGRAM ...

Страница 11: ... interpolates input to 1280 X 1024 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V regulator and one 1 8V regulator to convert power which is provided 5V in Power board 5V is provided for LCD panel and Micom Also 5V is converted 3 3V by regulator and 5V is converted 1 8V by regulator Converted power is provided for IC in the main boar...

Страница 12: ...o a DC voltage through a bridge rectifier and a bulk capacitor 3 Energy Transfer This part function is transfer the primary energy to secondary 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 during different AC input and output loading condition to ach...

Страница 13: ...WINNT system32 drivers folder b Run Userport exe c Remove all default number d Add 300 3FF e Click Start button f Click Exit button 2 EDID Read Write 1 Run WinEDID exe 2 Edit Week of Manufacture Year of Manufacture Serial Number 24C08 EEPROM a Input User Info Data b Click Update button c Click Write button 3 Repeat the above actions at 24C02 EEPROM Using DDC2B CAUTION Check the state Whether power...

Страница 14: ...isplay 2 Wait for about 5 seconds and press EXIT POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a Module select Select applied module b NVRAM INIT EEPROM initialize But the EDID data is not initialized The EDID data keep original data Press left and right swith at same time c ADC CAL W B balance and Automatically sets the ...

Страница 15: ...OINT AS OPENING EACH POWER LINE CHECK J705 VOLTAGE PIN5 PIN6 5V NO CHECK 5VR LINE OPEN CHECK CHECK Q803 PIN 3 3 3V U803 PIN 4 1 8V NO CHECK IIC LINE CONNECTION U501 U502 CHECK U201 VCC XTAL RESET IS U201 PIN88 VOLTAGE REPEATED AS PULSE SHAPE NO YES YES YES NO PROBLEM YES CHECK KEY CONTROL CONNECTOR ROUTINE 1 1 1 2 1 2 Waveforms J705 5 6 U801 1 U803 3 U201 88 ...

Страница 16: ...TATE 2 CHECK MICOM DIM ADJ PORT U501 PIN41 J705 PIN1 5V NO LIPS CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE NO REPLACE CCFL LAMP IN THE LCD MODULE YES YES YES YES 3 4 Waveforms J705 9 J705 9 1 3 4 Inverter Off Micom Port check J705 Inverter output Inverter On Micom Port check J705 Inverter output 1 J705 5 6 U801 1 U803 3 ...

Страница 17: ...AS 12MHZ CHECK CONNECTION LINE FROM U201 TO U501 TROUBLE IN CABLE OR LCD MODULE CHECK 5VR LINE U501 PIN8 5V YES YES YES YES 3 NO RASTER OSD IS NOT DISPLAYED gmZAN3SL NO RASTER OSD IS NOT DISPLAYED U501 PIN43 IS 64KHz H SYNC PIN44 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS NO NO NO 5 2 2 5 6 Waveforms U501 43 6 U501 44 U201 88 ...

Страница 18: ...ECTOR LINE CHECK R G B INPUT U201 PIN 70 74 77 NO CHECK H SYNC LINE D SUB U501 U201 PIN95 CHECK H SYNC INPUT U201 PIN 95 NO YES YES CHECK V SYNC LINE D SUB U501 U201 PIN96 CHECK V SYNC INPUT U201 PIN 96 NO YES NO RASTER OSD IS DISPLAYED 4 NO RASTER OSD IS DISPLAYED gmZAN3SL TROUBLE IN LCD MODULE YES ...

Страница 19: ... 19 WIRING DIAGRAM Main Board Power Board Control Board Connector Ass y P N 6631T20023J Connector Ass y P N 6631T20022E Connector Ass y P N 6631T11020W or 6631T11012W ...

Страница 20: ... 20 010 020 030 110 100 080 070 060 050 090 130 120 040 EXPLODED VIEW ...

Страница 21: ...116A LENS POWER LED LENS LL190N 4940TKT240A KNOB TACT CONTROL LL190N IBM L190 6871TST799B PWB PCB ASSEMBLY SUB LL190N CONTROL TOTAL IBM CKD NT 6871TPT306A PWB PCB ASSEMBLY POWER L190 L170 POWER TOTAL IBM LIENCHANG LIPS FOR LPL AUO 3313T19072B MAIN TOTAL ASSEMBLY LL190N IBM CL 66 CKD NT 4814TKK269A SHIELD INVERTER LL170M 4951TKS197B METAL ASSEMBLY FRAME LL190N IBM L190 LGENT 3550TKK773A COVER LL190...

Страница 22: ...V 10 R TP B Y C829 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y C831 0CE107EF610 100UF KMG RD 16V 20 FL BULK C832 0CE107EF610 100UF KMG RD 16V 20 FL BULK DATE 2004 11 12 S AL LOC NO PART NO DESCRIPTION SPECIFICATION D701 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D702 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D706 0DS226009AA KDS226 TP KEC SOT 23 80V 30 D707 0DD184009AA KDS184 TP KEC 85V 30 ZD701 0DZKE00138...

Страница 23: ...R744 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R747 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R769 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R775 0RJ0682D677 68 OHM 1 10 W 5 1608 R TP R779 0RJ0682D677 68 OHM 1 10 W 5 1608 R TP R780 0RJ2001D677 2K OHM 1 10 W 5 1608 R TP R781 0RJ2001D677 2K OHM 1 10 W 5 1608 R TP R782 0RJ0471D677 4 7 OHM 1 10 W 5 1608 R TP R803 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R805 0RJ10...

Страница 24: ...SCHEMATIC DIAGRAM 24 1 ZAN3SL 1 2 2 U201 88 Waveforms ...

Страница 25: ... 25 2 MICOM 2 6 5 5 U501 43 Waveforms 6 U501 44 ...

Страница 26: ... 26 3 POWER 3 1 1 Waveforms 1 J705 5 6 U801 1 U803 3 ...

Страница 27: ... 27 4 CONNECTOR JACKS 4 Waveforms 1 J705 5 6 U801 1 U803 3 3 4 J705 9 J705 9 Inverter Off Micom Port check J705 Inverter output Inverter On Micom Port check J705 Inverter output 4 3 1 ...

Страница 28: ... 28 5 CONTROL ...

Страница 29: ...Nov 2004 Printed in Korea P NO 3828TSO049H ...

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