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MODEL: T541 (9512-HW0) T541 (9512-HB0) COLOR MONITOR SERVICE MANUAL Chassis No. : CL-37 CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
PRECAUTION WARNING FOR THE SAFETY-RELATED COMPONENT. WARNING BE CAREFUL ELECTRIC SHOCK ! • There are some special components used in LCD monitor that are important for safety. These parts are • If you want to replace with the new backlight (CCFL) or marked on the schematic diagram and the inverter circuit, must disconnect the AC adapter...
TIMING CHART VIDEO SYNC Total Video Blanking Sync Back Front Sync Frequency MODE H / V Resolution Period Active Time Duration Porch Porch Polarity Clock ( E ) Time ( A ) ( B ) ( D ) ( F ) ( C ) 25.175 31.468 KHz...
OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW Front Control Panel Front Control Panel Bring up Brightness adjustment. Switches the monitors on and off. Bring up auto image setup. Display main OSD menu and selects highlighted menu item. CONTROLS LOCK / UNLOCK This feature allows you to secure the current control settings, while allowing the user to adjust Moved the cursor to highlight icons or...
DESCRIPTION OF BLOCK DIAGRAM 1. Input signal switching part. There are two inputs which are analog and digital input. They come from each 15 pin D-Sub and 24 pin DVI-D connector. 2. Video Controller Part. This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock.
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BLOCK DIAGRAM POWER BOADR 50 ~ 60Hz 100KHz HVDC INPUT RECTIFIER ENERGY OUTPUT RECTIFIER COMPONENTS AND FILTER TRANSFER AND FILTER LINE 100 ~ 240V PWM CONTROL PHOTO-COUPLER SIGNAL CIRCUIT ISOLATION COLLENTION SECONDARY PRIMARY DESCRIPTION OF BLOCK DIAGRAM 1. EMI components. This part contains of EMI components to comply with global marketing EMI standards like FCC, VCCI CISPR, the circuit included a line-filter, across line capacitor and of course the primary protection fuse.
EEPROM. 1. Adjustment for Factory Preset Mode 8) Select PRESET EXIT command and Enter. 1) Run alignment program for LI507N on the IBM compatible PC. 3. DDC Data Write Procedure 2) Select EEPROM all clear command and Enter.
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK CHECK THE OUTPUT J702 PIN 1 VOLTAGE OF POWER BOARD (12V) ? CHECK CHECK THE OUTPUT J702 PIN 4 VOLTAGE OF POWER BOARD (5V) ? CHECK X501’S WAVEFROM CHECK X501. OSCILLATE AS 24MHZ ? CHECK...
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2. NO RASTER (OSD IS NOT DISPLAYED) – INVERTER NO RASTER (OSD IS NOT DISPLAYED) J704 PIN 1 CHECK POWER BOARD 12V? CHECK MICOM INV J704 PIN 8 ON/OFF PORT. 1. CONFIRM BRIGHTNESS OSD CONTRL STATE. J704 PIN 7 2. CHECK MICOM DIM-ADJ PORT CHECK PULSE AS...
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3. WHITE SCREEN (OSD IS NOT DISPLAYED) WHITE SCREEN (OSD IS NOT DISPLAYED) CHECK U801 PIN 5, 2 U804, U803, U806 U804, U803, U806 POWER PINS 3.3V, 2.5V? 1. CHECK PIN 93, 94 X201 SOLDERING CONDITION OSCILLATE AS 2. CHECK X201 14,3181M? 3.
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4. RAINBOW SCREEN RAINBOW SCREEN (OSD IS NOT DISPLAYED) CHECK CHECK U401 CHECK U101 U201 WAVEFORM? REPLACE MAIN BOARD & U201 CHECK J706’S SOLDERING CONDITION - 14 -...
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EXPLODED VIEW PARTS LIST DESCRIPTION Ref. No. Part No. CABINET ASSEMBLY, LI507N IBM 3090TKL047A BLACK (STEALTH BLACK) 3091TKL046A CABINET ASSEMBLY, LI507N IBM 3090TKL047A P/WHITE (PEARL WHITE) 3091TKL046B LCD(LIQUID CRYSTAL DISPLAY), LM150X07-B4 LG PHILPS TFT COLOR 15.0 INCH XGA 6304FLP024A BACK COVER ASSEMBLY, LI507N 3808TKL034A BLACK (STEALTH BLACK)
REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE: 2002. 5. 27. DATE: 2002. 5. 27. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
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SiI141B Pin Diagram 24-bit Input Data for 1-pixel/clock mode 8-bit Channel 1 Data 8-bit Channel 0 Data 8-bit Channel 2 Data 1-pixel/clock 1-pixel/clock 1-pixel/clock 6-bit Even Channel 1 6-bit Odd Channel 0 6-bit Even Channel 2 Data 2-pixel/clock Data 2-pixel/clock Data 2-pixel/clock OGND OVcc...
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CAT24WC08J-TE13 8P BLOCK DIAGRAM DIP Package(p) SOIX Package(J) EXTERNAL LOAD V CC V CC SENSE AMPS D OUT SHIFT REGISTERS V SS V SS V CC COLUMN V SS WORD ADDRESS DECODERS BUFFERS TSSOP Package(U) START/STOP LOGIC V CC E PROM XDEC V SS CONTROL...
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SN54F86, SN74F86 TOP VIEW 74F08 TOP VIEW Vcc = Pin 14 GND = Pin 7 - 26 -...
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