Service Manual
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MENU AUTO/SELECT COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-32 FACTORY MODEL: LB501K MODEL: L1511S (LB501K-GL) CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MENU AUTO/SELECT COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-32 FACTORY MODEL: LB501K MODEL: L1511S (LB501K-GL) CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Service Manual
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... W GREEN STAND-BY OFF/ON OFF less than 3 W AMBER SUSPEND ON/OFF OFF less than 3 W AMBER 5. DIMENSIONS (with TILT/SWIVEL) Width Depth Height : 356mm (14.01'') : 151.7mm (5.97'') : 359.8mm (14.16'') 7. CONTENTS SPECIFICATIONS 2 PRECAUTIONS 3 TIMING CHART 4 OPERATING INSTRUCTIONS 5 WIRING DIAGRAM 6 BLOCK DIAGRAM 7 DESCRIPTION OF BLOCK DIAGRAM 8 ADJUSTMENT 9 TROUBLESHOOTING GUIDE 10 PRINTED CIRCUIT BOARD 14 EXPLODED VIEW 15 REPLACEMENT PARTS LIST 17 PIN CONFIGURATION 20 SCHEMATIC DIAGRAM...
... W GREEN STAND-BY OFF/ON OFF less than 3 W AMBER SUSPEND ON/OFF OFF less than 3 W AMBER 5. DIMENSIONS (with TILT/SWIVEL) Width Depth Height : 356mm (14.01'') : 151.7mm (5.97'') : 359.8mm (14.16'') 7. CONTENTS SPECIFICATIONS 2 PRECAUTIONS 3 TIMING CHART 4 OPERATING INSTRUCTIONS 5 WIRING DIAGRAM 6 BLOCK DIAGRAM 7 DESCRIPTION OF BLOCK DIAGRAM 8 ADJUSTMENT 9 TROUBLESHOOTING GUIDE 10 PRINTED CIRCUIT BOARD 14 EXPLODED VIEW 15 REPLACEMENT PARTS LIST 17 PIN CONFIGURATION 20 SCHEMATIC DIAGRAM...
Service Manual
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...service operation. TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT. • Must mount the module using mounting holes arranged in four corners. • Do not press on the panel, edge of the inverter circuit. WARNING BE CAREFUL ELECTRIC SHOCK ! • If you will result in damage to the screen... softmaterial. (Cleaning with care wires or connectors of the frame strongly or electric shock as it may damage the electronic circuit (C-MOS). • Make certain that are pressed cause short and may burn or take fire. It is essential that these critical parts should be ...
...service operation. TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT. • Must mount the module using mounting holes arranged in four corners. • Do not press on the panel, edge of the inverter circuit. WARNING BE CAREFUL ELECTRIC SHOCK ! • If you will result in damage to the screen... softmaterial. (Cleaning with care wires or connectors of the frame strongly or electric shock as it may damage the electronic circuit (C-MOS). • Make certain that are pressed cause short and may burn or take fire. It is essential that these critical parts should be ...
Service Manual
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... indicator color changes to enter a selection in the On Screen Display. OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW MENU AUTO/SELECT See front control panel Power Connector D-Sub Signal Connector Front Control Panel 2 3 4 1 1. Button Use these buttons to the ideal settings for the current screen resolution size (display mode). This will automatically adjust your display settings, always press the AUTO/SELECT button before entering the On Screen Display(OSD). Menu Button Use this button to enter or exit the On Screen Display. 3. This Indicator lights up Contrast...
... indicator color changes to enter a selection in the On Screen Display. OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW MENU AUTO/SELECT See front control panel Power Connector D-Sub Signal Connector Front Control Panel 2 3 4 1 1. Button Use these buttons to the ideal settings for the current screen resolution size (display mode). This will automatically adjust your display settings, always press the AUTO/SELECT button before entering the On Screen Display(OSD). Menu Button Use this button to enter or exit the On Screen Display. 3. This Indicator lights up Contrast...
Service Manual
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WIRING DIAGRAM Connector Ass'y : P/N: 6631T11016C CN2 J705 J702 J706 Connector Ass'y : P/N: 6631T20008U CN3 J1
WIRING DIAGRAM Connector Ass'y : P/N: 6631T11016C CN2 J705 J702 J706 Connector Ass'y : P/N: 6631T20008U CN3 J1
Service Manual
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E-DDC EEPROM 24LC02 DSub 15P H.V Schmitt Trigger (74HCT14A) Hsync2 Vsync2 Hsyncm Vsyncm MICOM (MTV312) Control Inverter on/off DIMADJ SCLK SDATA 5VR RGB ADC/PLL/Scaler (GMZAN2) 24 Bit LVDS EEPROM 24LC16 Panel Interface 20 Pin Connector Inverter on/off CON 8P DIMADJ 5VR 3.3VD 3.3V_PL 3.3V_AD 2.5V_A 2.5V_D CON 2P BD Inver ter block Inverter on/off DIMADJ CON 2P Filter PWM Controller SMPS 12VS 5VR Inverter on/off DIMADJ CON 8P 3.3VD Regulator BA033 3.3V_A Regulator BA033 Regulator RC117 3.3V_PL +3.3V +2.5V_A 2.5V_D Regulator BA033 Module Power 3.3V
E-DDC EEPROM 24LC02 DSub 15P H.V Schmitt Trigger (74HCT14A) Hsync2 Vsync2 Hsyncm Vsyncm MICOM (MTV312) Control Inverter on/off DIMADJ SCLK SDATA 5VR RGB ADC/PLL/Scaler (GMZAN2) 24 Bit LVDS EEPROM 24LC16 Panel Interface 20 Pin Connector Inverter on/off CON 8P DIMADJ 5VR 3.3VD 3.3V_PL 3.3V_AD 2.5V_A 2.5V_D CON 2P BD Inver ter block Inverter on/off DIMADJ CON 2P Filter PWM Controller SMPS 12VS 5VR Inverter on/off DIMADJ CON 8P 3.3VD Regulator BA033 3.3V_A Regulator BA033 Regulator RC117 3.3V_PL +3.3V +2.5V_A 2.5V_D Regulator BA033 Module Power 3.3V
Service Manual
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... . Each regulator's source power is SMPS(Switching Mode Power Supply). Converting method is 5VR from microprocessor makes inverter turned on or off voltage. System Controller (Microprocessor) Circuit 1) Microprocessor (U501) distinguishes polarity and frequency by calculating horizontal and vertical sync input from microprocessor does inverter's current adjustment for LCD module's operation by OSD function. 3. DESCRIPTION OF BLOCK DIAGRAM 1. This signal is High, transmitter goes to inverter by sending power-down 5VR. LVDS...
... . Each regulator's source power is SMPS(Switching Mode Power Supply). Converting method is 5VR from microprocessor makes inverter turned on or off voltage. System Controller (Microprocessor) Circuit 1) Microprocessor (U501) distinguishes polarity and frequency by calculating horizontal and vertical sync input from microprocessor does inverter's current adjustment for LCD module's operation by OSD function. 3. DESCRIPTION OF BLOCK DIAGRAM 1. This signal is High, transmitter goes to inverter by sending power-down 5VR. LVDS...
Service Manual
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... 5 PARALLEL PORT Not used RS232C PARALLEL OFF ON 5V C F VGS A MONITOR B V-SYNC ST POWER Power inlet (required) 220 Power Select Switch (110V/220V) Power LED E ST Switch F V-Sync On/Off Switch (Switch must be following procedure and after warming up for a minimum of 10 minutes. Adjustment for Factory Preset Mode 1) Run alignment program for White Balance 1) Display color 0,0 pattern at Mode 13. 2) Set External Bright to MAX position and Contrast to MAX Position. 3) Select PRESET START →...
... 5 PARALLEL PORT Not used RS232C PARALLEL OFF ON 5V C F VGS A MONITOR B V-SYNC ST POWER Power inlet (required) 220 Power Select Switch (110V/220V) Power LED E ST Switch F V-Sync On/Off Switch (Switch must be following procedure and after warming up for a minimum of 10 minutes. Adjustment for Factory Preset Mode 1) Run alignment program for White Balance 1) Display color 0,0 pattern at Mode 13. 2) Set External Bright to MAX position and Contrast to MAX Position. 3) Select PRESET START →...
Service Manual
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NO CHECK 5VS LINE (OPEN CHECK) NO PROBLEM IS U201 PIN12 (3.3V) VOLTAGE REPEATED AS PULSE SHAPE ? YES CHECK U805 PIN 1 Voltage (5V) ? YES CHECK U802 PIN 1 VOLTAGE (5V) ? YES CHECK KEY CONTROL CONNECTOR ROUTINE CHECK POWER NO BOARD, AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE NO CHECK U803. NO CHECK IIC LINE CONNECTION (U501, U502) NO CHECK U201 VCC, XTAL, RESET TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK J705 VOLTAGE PIN5, PIN6 (5V)?
NO CHECK 5VS LINE (OPEN CHECK) NO PROBLEM IS U201 PIN12 (3.3V) VOLTAGE REPEATED AS PULSE SHAPE ? YES CHECK U805 PIN 1 Voltage (5V) ? YES CHECK U802 PIN 1 VOLTAGE (5V) ? YES CHECK KEY CONTROL CONNECTOR ROUTINE CHECK POWER NO BOARD, AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE NO CHECK U803. NO CHECK IIC LINE CONNECTION (U501, U502) NO CHECK U201 VCC, XTAL, RESET TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK J705 VOLTAGE PIN5, PIN6 (5V)?
Service Manual
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CONFIRM BRIGHTNESS NO OSD CONTRL STATE. 2. YES REPLACE CCFL LAMP IN THE LCD MODULE LIPS YES J705 PIN1 5V? CHECK MICOM DIM-ADJ PORT CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL. CAN YOU SEE PULSE AT YOUR SCOPE? 2. YES J705 PIN2 5V? YES NO CHECK LIPS NO CHECK MICOM INV ON/OFF PORT. 1. NO RASTER (OSD IS NOT DISPLAYED) - NO (CONTACT PROBE TO CAUTION LABEL. LIPS NO RASTER (OSD IS NOT DISPLAYED) J705 PIN5, PIN 6 5V?
CONFIRM BRIGHTNESS NO OSD CONTRL STATE. 2. YES REPLACE CCFL LAMP IN THE LCD MODULE LIPS YES J705 PIN1 5V? CHECK MICOM DIM-ADJ PORT CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL. CAN YOU SEE PULSE AT YOUR SCOPE? 2. YES J705 PIN2 5V? YES NO CHECK LIPS NO CHECK MICOM INV ON/OFF PORT. 1. NO RASTER (OSD IS NOT DISPLAYED) - NO (CONTACT PROBE TO CAUTION LABEL. LIPS NO RASTER (OSD IS NOT DISPLAYED) J705 PIN5, PIN 6 5V?
Service Manual
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YES U201 PIN141, 142 OSCILLATE AS 20MHZ? CHECK X201 3. NO RASTER (OSD IS NOT DISPLAYED) - gmZAN2 NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PINS 3.3V? YES NO CHECK U802, U806 1. CHECK PIN141, 142 NO SOLDERING CONDITION 2. IS PULSE APPEARED AT SIGNAL PINS? YES U401 PIN1 NO 3.3V? TROUBLE IN U201 U401 PIN31 IS 65MHz CLOCK? PIN27 IS 48KHz H-SYNC? NO PIN28 IS 60Hz V-SYNC? YES TROUBLE IN CABLE OR LCD MODULE CHECK CONNECTION LINE FROM U201 TO U401 CHECK U805 PIN30 IS 48KHz DEN? 3.
YES U201 PIN141, 142 OSCILLATE AS 20MHZ? CHECK X201 3. NO RASTER (OSD IS NOT DISPLAYED) - gmZAN2 NO RASTER (OSD IS NOT DISPLAYED) U201 POWER PINS 3.3V? YES NO CHECK U802, U806 1. CHECK PIN141, 142 NO SOLDERING CONDITION 2. IS PULSE APPEARED AT SIGNAL PINS? YES U401 PIN1 NO 3.3V? TROUBLE IN U201 U401 PIN31 IS 65MHz CLOCK? PIN27 IS 48KHz H-SYNC? NO PIN28 IS 60Hz V-SYNC? YES TROUBLE IN CABLE OR LCD MODULE CHECK CONNECTION LINE FROM U201 TO U401 CHECK U805 PIN30 IS 48KHz DEN? 3.
Service Manual
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4. NO RASTER (OSD IS DISPLAYED) - U201 PIN 87, 91, 95 YES CHECK H-SYNC INPUT U201 PIN 150? CHECK PC NO 2. CHECK SIGNAL CABLE & D-SUB CONNECTOR LINE NO CHECK H-SYNC LINE (D-SUB→U701→MICOM →U201 PIN150) gmZAN2 NO RASTER (OSD IS DISPLAYED) YES U201 POWER PIN 3.3V? YES CHECK R,G,B INPUT? NO CHECK U802, U806 1.
4. NO RASTER (OSD IS DISPLAYED) - U201 PIN 87, 91, 95 YES CHECK H-SYNC INPUT U201 PIN 150? CHECK PC NO 2. CHECK SIGNAL CABLE & D-SUB CONNECTOR LINE NO CHECK H-SYNC LINE (D-SUB→U701→MICOM →U201 PIN150) gmZAN2 NO RASTER (OSD IS DISPLAYED) YES U201 POWER PIN 3.3V? YES CHECK R,G,B INPUT? NO CHECK U802, U806 1.
Service Manual
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... BRAND 3090TKL040A PC+ABS 6304FLP025A LCD(LIQUID CRYSTAL DISPLAY) LM150X06-A3M1 LG PHILPS TFT COLOR 15.0 INCH XGA 2 or 6304FLP024A LCD(LIQUID CRYSTAL DISPLAY) LM150X07-B4 LG PHILPS TFT COLOR 15.0 INCH XGA 3 3809TKL026L BACK COVER ASSEMBLY, LB500J 029A PC+ABS 4-A 3043TKK097A TILT SWIVEL ASSEMBLY LB500J . (BASE) 4-B 3043TKK092A TILT SWIVEL ASSEMBLY LB500J 5 4951TKS091A METAL ASSEMBLY, FRAME MAIN(LB500K,LPL MODULE) 6634B00051A ADAPTER, AC-DC, PWI1502LG 5V/12A 1A/1A LIPS FOR...
... BRAND 3090TKL040A PC+ABS 6304FLP025A LCD(LIQUID CRYSTAL DISPLAY) LM150X06-A3M1 LG PHILPS TFT COLOR 15.0 INCH XGA 2 or 6304FLP024A LCD(LIQUID CRYSTAL DISPLAY) LM150X07-B4 LG PHILPS TFT COLOR 15.0 INCH XGA 3 3809TKL026L BACK COVER ASSEMBLY, LB500J 029A PC+ABS 4-A 3043TKK097A TILT SWIVEL ASSEMBLY LB500J . (BASE) 4-B 3043TKK092A TILT SWIVEL ASSEMBLY LB500J 5 4951TKS091A METAL ASSEMBLY, FRAME MAIN(LB500K,LPL MODULE) 6634B00051A ADAPTER, AC-DC, PWI1502LG 5V/12A 1A/1A LIPS FOR...
Service Manual
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MAIN BOARD CAPACITORS DATE: 2002. 8. 29. NO. PART NO. DESCRIPTION / SPECIFICATION C270 C271 C401 C402 C403 C404 C405 C501 C502 C503 C504 ... SOT-23 80V 300M KDS226 TP KEC SOT-23 80V 300M NO. DATE: 2002. 8. 29. PART NO. DESCRIPTION / SPECIFICATION C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C214 C215 C216 C217 C218 C219 ...R/TP NP0 68PF 1608 50V 5% R/TP NP0 0.01UF 1608 50V 10% R/TP B(Y5P *S *AL LOC. REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE : S SAFETY Mark AL ALTERNATIVE...
MAIN BOARD CAPACITORS DATE: 2002. 8. 29. NO. PART NO. DESCRIPTION / SPECIFICATION C270 C271 C401 C402 C403 C404 C405 C501 C502 C503 C504 ... SOT-23 80V 300M KDS226 TP KEC SOT-23 80V 300M NO. DATE: 2002. 8. 29. PART NO. DESCRIPTION / SPECIFICATION C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C214 C215 C216 C217 C218 C219 ...R/TP NP0 68PF 1608 50V 5% R/TP NP0 0.01UF 1608 50V 10% R/TP B(Y5P *S *AL LOC. REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE : S SAFETY Mark AL ALTERNATIVE...
Service Manual
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DESCRIPTION / SPECIFICATION D706 D707 D708 ZD701 ZD702 0DS226009AA 0DS301109AA 0DS301109AA 0DZ560009GB 0DZ560009GB KDS226 TP KEC SOT-23 80V 300M ...Q503 Q701 0TR390409AE 0IKE704200H 0TR390409AE FAIRCHILD KST3904(LGEMTF) TP S KIA7042AP TO-92 TP 4.2 VOLT. DATE: 2002. 8. 29. DESCRIPTION / SPECIFICATION R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R515 R516 R517 R518 R519 R520 R521 R522 R523 R524 R525 R526 R527...5% 1608 R/TP 1K OHM 1/10 W 5% 1608 R/TP 5.6K OHM 1/10 W 1% 1608 R/TP 4.7K OHM 1/10 W 5% 1608 R/TP *S *AL LOC. NO. PART NO. PART NO. *S *AL LOC. NO.
DESCRIPTION / SPECIFICATION D706 D707 D708 ZD701 ZD702 0DS226009AA 0DS301109AA 0DS301109AA 0DZ560009GB 0DZ560009GB KDS226 TP KEC SOT-23 80V 300M ...Q503 Q701 0TR390409AE 0IKE704200H 0TR390409AE FAIRCHILD KST3904(LGEMTF) TP S KIA7042AP TO-92 TP 4.2 VOLT. DATE: 2002. 8. 29. DESCRIPTION / SPECIFICATION R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R515 R516 R517 R518 R519 R520 R521 R522 R523 R524 R525 R526 R527...5% 1608 R/TP 1K OHM 1/10 W 5% 1608 R/TP 5.6K OHM 1/10 W 1% 1608 R/TP 4.7K OHM 1/10 W 5% 1608 R/TP *S *AL LOC. NO. PART NO. PART NO. *S *AL LOC. NO.
Service Manual
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...DIAGRAM EXTERNAL LOAD V CC V SS DOUT ACK WORD ADDRESS BUFFERS SDA START/STOP LOGIC SENSE AMPS SHIFT REGISTERS COLUMN DECODERS XDEC E2 PROM WP CONTROL LOGIC PIN FUNCTION Pin Name A0, A1, A2 SDA SCL WP Vcc Vss Function Device Adress Inputs Serial Data/Address Serial Clock Write Protect +1.8V to + 6.0V power Supply... Ground SCL A0 A1 A2 STATE COUNTERS SLAVE ADDRESS COMPARATORS MC74HCT14ADR2 14P DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL A1 1 Y1 2 A2 3 Y2 4...
...DIAGRAM EXTERNAL LOAD V CC V SS DOUT ACK WORD ADDRESS BUFFERS SDA START/STOP LOGIC SENSE AMPS SHIFT REGISTERS COLUMN DECODERS XDEC E2 PROM WP CONTROL LOGIC PIN FUNCTION Pin Name A0, A1, A2 SDA SCL WP Vcc Vss Function Device Adress Inputs Serial Data/Address Serial Clock Write Protect +1.8V to + 6.0V power Supply... Ground SCL A0 A1 A2 STATE COUNTERS SLAVE ADDRESS COMPARATORS MC74HCT14ADR2 14P DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL A1 1 Y1 2 A2 3 Y2 4...