Related Manuals for LG FPD1570
Summary of Contents for LG FPD1570
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Page 1: Color Monitor
COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-18 MODEL: FPD1570, LB680A CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. -
Page 2: Table Of Contents
CONTENTS SPECIFICATIONS ........... 2 DESCRIPTION OF BLOCK DIAGRAM....PRECAUTIONS ............3 ADJUSTMENT ............13 TIMING CHART ............4 TROUBLESHOOTING GUIDE ......14 OPERATING INSTRUCTIONS ........ 5 PRINTED CIRCUIT BOARD........20 CONTROL LOCATIONS ......... 8 EXPLODED VIEW...........22 WIRING DIAGRAM ..........8 REPLACEMENT PARTS LIST .......24 DISASSEMBLY ............ -
Page 3: Precautions
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... -
Page 4: Timing Chart
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 31.469 KHz... -
Page 5: Operating Instructions
OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW D-Sub Signal Connector Power Button Power Indicator DC Power Connecter OSD Button AUTO/SET Button Buttons Front Control Panel 1. Power ON/OFF Button 4 AUTO/SET Button Use this button to enter a selection in the on screen display. Use this button to turn the monitor on or off. - Page 6 Listed below are icons, icon names, and icon descriptions On-Screen-Display (OSD) Control of the OSD menu. To adjust an image size, position, and operating parameters are quick and easy with the On-Screen- BRIGHTNESS CONTRAST Display control system, using the OSD button and the Adjustment control button.
- Page 7 TRACKING SETUP TRACKING SETUP LANGUAGE ENGLISH FULL CLOCK IMAGE SIZE OSD POSITION PHASE MODE INFO 48 .3 kHz / 6 0. 0Hz PRESET M O DE LANGUAGE To choose the language in which the To minimize any vertical bars or CLOCK control names are displayed.
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Page 8: Control Locations
CONTROL LOCATIONS Ref. No. Control Function SW301 OSD BUTTON SW304 ADJUST LEFT MAIN PCB SW303 ADJUST UP SW306 ADJUST DOWN SW302 ADJUST RIGHT SW307 AUTO/SET CONTROL PCB SW305 POWER SWITCH WIRING DIAGRAM J301... -
Page 9: Disassembly
DISASSEMBLY 1. TILT/SWIVEL REMOVAL 2. BACK COVER REMOVAL (1) Remove two screws (a). (1) Remove four sheet (a) from Back Cover. (2) Remove the Tilt/swivel. (2) Remove four screws (b) from the Back Cover. (3) Remove the Back Cover. Back Cover 3. - Page 10 5.METAL FRAME ASSEMBLY REMOVAL (1) Remove five screws (a). (2) Remove six screws (b). (3)Remove theMetal Frame Ass’y 5. INVERYTER REMOVAL 6. BACKLIGHT REMOVAL (1) Disconnect CN2,CN3 . (1) Remove two screws (a). (1) Remove two screws (a). (2) Remove the Backlight from the LCD Module. (2) Remove the Inverter.
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Page 11: Block Diagram
3.3V Memory 3.3V Video Signal 3.3V (KM416S102BT) Reg. R,G,B differential Address Data 48 Bit M-CLK 5.0V 3.3V Out - CLK LVDS Inverter DC-DC R,G,B Even 3.3V (LVDS8 3) Converter Video Controller DE ,H/V Sync out ADC CLK LCD Module Out - CLK MX88L282 LVDS 24V Input... -
Page 12: Description Of Block Diagram
DESCRIPTION OF BLOCK DIAGRAM 1. Pre-amp/ ADC / PLL 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. The pixel clock for each mode is generated by the PLL. The range of the pixel clock is from 25MHz to 135MHz. -
Page 13: Adjustment
EEPROM. 1. Adjustment for Factory Preset Mode 8) Select PRESET EXIT command and Enter. 1) Run alignment program for FPD1570 on the IBM compatible PC. 2) Select EEPROM all clear command and Enter. 3) Display cross hatch pattern at Mode 1. -
Page 14: Troubleshooting Guide
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) TROUBLE IN CHECK U15 ADAPTOR or INPUT VOLTAGE INVERTER (24V) ? CHECK TROUBLE IN 5VST VOLTAGE (5V) ? CHECK U4 PIN 6. TROUBLE IN IS THIS PIN U4 or X2 OSCILLATED? TROUBLE SOMEWHERE ELSE... - Page 15 2. NO RASTER NO RASTER CHECK TROUBLE IN J4 PIN 10 POWER ADATER (24V) ? CHECK TROUBLE IN J4 PIN 5 (5V) ? INON PATTERN CHECK TROUBLE IN U4 PIN 42 U106, U105, U101, H. PULSE ? U109 CHECK TROUBLE IN U5 PIN 117 H.PULSE? CHECK...
- Page 16 CHECK CHECK U1 PIN 254 ADC-CLK PATTERN DOT CLOCK ? CHECK MEMORYCLK TROUBLE IN U6, U7, U8 PIN 35 ? CHECK TROUBLE IN U1 PIN 93, 94 DOT CLOCK ? CHECK TROUBLE IN U1 PIN 124 D26 (H.PULSE) ?
- Page 17 CHECK TROUBLE IN U2, U11 PIN 27 H.PULSE ? CHECK TROUBLE IN U2, U11 PIN 28 V.PULSE ? CHECK TROUBLE IN U2, U11 PIN 31 DOT CLOCK? CHECK TROUBLE IN U2, U11 PIN 30 H.PULSE? TROUBLE IN LCD MODULE...
- Page 18 3. NO CLOCK (CLOCK GENERATOR) NO DOT CLOCK CHECK TROUBLE IN U5Vcc 3.3V ? CHECK TROUBLE IN U5 PIN 115 CLOCK ?
- Page 19 4. TROUBLE IN DPM TROUBLE IN DPM CHECK U617 (MICOM) TROUBLE IN PIN 1, 42 (H/V INPUT) SIGNAL ? CHECK U4 PIN 6 TROUBLE IN WAVEFORM (24MHz) ? CHECK TROUBLE IN U4 PIN 26 SIGNAL CABLE (5V) ? TROUBLE IN PC...
- Page 21 C176 C119...
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Page 22: Exploded View
EXPLODED VIEW EXPLODED VIEW PARTS LIST Ref. No. Part No. Description 3091TKL021C CABINET ASS’Y, LB680A G/WAY 3090TKL019A PC+ABS, 12446B LCD , LGPHILIPS TFT LCD LM157E2-A2, 15.7” 1280x1024 W/O I 6304TLT157A 6632Z-1502D INVERTER, NMC1502 15.1” PWB(PCB)ASS’Y, SUB LB680A XAGT BRAND CONTROL 6871TST198A 4951TKS062A METAL ASS’Y, FRAME LB680A... -
Page 23: Replacement Parts List
REPLACEMENT PARTS LIST CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS, READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL. * NOTE SAFETY Mark AL ALTERNATIVE PARTS MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMARK MAIN BOARD... - Page 24 MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMARK 0CH8106J691 CAPACITOR, CHIP, [AL. ELECTROLYTIC], 10UF 35V M 105STD (CYL) R/TP 0CH3104K566 CAPACITOR, CHIP, [CERAMIC LD-LESS HD], 0.1UF 50V K X 2012 R/TP 0CH3104K566 CAPACITOR, CHIP, [CERAMIC LD-LESS HD], 0.1UF 50V K X 2012 R/TP 0CH3104K566 CAPACITOR, CHIP, [CERAMIC LD-LESS HD], 0.1UF 50V K X 2012 R/TP...
- Page 25 MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMARK C132 0CH3104K566 CAPACITOR, CHIP, [CERAMIC LD-LESS HD], 0.1UF 50V K X 2012 R/TP C133 0CH6100K116 CAPACITOR, CHIP, [CERAMIC LD-LESS TC], 10PF 50V D NP0 2012 R/TP...
- Page 26 MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMARK C202 0CH6680K416 CAPACITOR, CHIP, [CERAMIC LD-LESS TC], 68PF 50V J NP0 2012 R/TP C203 0CH6680K416 CAPACITOR, CHIP, [CERAMIC LD-LESS TC], 68PF 50V J NP0 2012 R/TP...
- Page 27 MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMARK 6210TCE001R CORE (CIRC), BEAD, HB-1S2012-400JT CERATECH 2012MM R/TP 6210TCE001D CORE (CIRC), BEAD, HB-1M2012-601JT CERATEC 2012MM R/TP 6210TCE001D CORE (CIRC), BEAD, HB-1M2012-601JT CERATEC 2012MM R/TP 6210TCE001D CORE (CIRC), BEAD, HB-1M2012-601JT CERATEC 2012MM R/TP...
- Page 28 MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMARK 0RH4701D622 RESISTOR, CHIP, 4.7K 1/10W 5 D.R/TP 0RH6802D622 RESISTOR, CHIP, 68K 1/10W 5 D.R/TP 0RH1000D622 RESISTOR, CHIP, 100 1/10W 5 D.R/TP 0RH1002D622 RESISTOR, CHIP, 10K 1/10W 5 D.R/TP 0RH1000D622 RESISTOR, CHIP, 100 1/10W 5 D.R/TP...
- Page 29 MODEL: FPD1570 DATE: 2000. 10. 11. LOC. NO. PART NO. DESCRIPTION / SPECIFICATION REMAR CONTROL BOARD R301 0RD1001Q609 RESISTOR, FIXED CARBON FILM, 1K 1/4W(3 5% TA52 R302 0RD1001Q609 RESISTOR, FIXED CARBON FILM, 1K 1/4W(3 5% TA52 R303 0RD1601Q609 RESISTOR, FIXED CARBON FILM, 1.60K 1/4W(3 5% TA52...
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Page 30: Pin Configurations
MX88L282 256PQFP BK XGA LCD INTEGRATION CHIP Pin Configurations GNDP 193 128 GNDP GNDP 194 127 GNDP W E # 126 GOUT1/OSDG0 CAS# 196 125 GOUT0/OSDB0 RAS# 197 124 L D T G DQM0 123 LVSYNC DQM1 122 LHSYNC G N D 121 VDDP GNDP 201 120 RA0... - Page 31 Chip Block Diagram SDRAM/SGRAM RGB/YUV PIXINA Color Brightness DRAM PIXINB Scale Down Scale up conversion Contrast controller with with (RGB or control SmartScaling SmartScaling YUV or Technology Technology YCrCb) PIXOUT - A (RGB) Odd/Even correction PIXOUT - B De-Interlace (RGB) Auto-tracking Auto-position CPU I/F...
- Page 32 MC68HC908BD VSYNC HSYNC VDD3 PTC0/ADC0 PD1/D- PTC1/ADC1 PD0/D+ PTC2/ADC2 PTC3/ADC3 XTAL** PTE2/VSYNO EXTAL** PTE1/HSYNO PTB0/PWM0 MC68HC908BD48 PTB1/PWM1 PTB2/PWM2 PTB7/PWM7 PTB3/PWM3 PTB6/PWM6 42-PIN SDIP PTB4/PWM4 PTB5/PWM5 VSS1 PTC5/ADC5 PTD2*/DDCSDA* PTC4/ADC4 PTD3*/DDCSCL* PTD4/CLAMP PTE0/SOG/TCH0 PTD5*/IICSCL* PTA7/PWM15 PTD6*/IICSDA* PTA6/PWM14 PTA0/PWM8 PTA5/PWM13 PTA1/PWM9 PTA4/PWM12 PTA2/PWM10 PTA3/PWM11 *: +5V open-drain...
- Page 33 BLOCK DIAGRAM FOR MC68HC908BD Pulse VDD3 Width PTA0/PWM8 Modulation PTA1/PWM9 (PWM) EXTAL** XTAL** DATA PTA2/PWM10 PORT Multi-master PTA3/PWM11 PTA4/PWM12 CORE OSCILLATOR TIMER AND DIVIDE PTA5/PWM13 (COP) 8-bit ADC BY 4 PTA6/PWM14 PTA7/PWM15 DDC12AB /IIC PTB0/PWM0 CPU CONTROL PTB1/PWM1 PTE0/SOG/TCH0 68HC08 CPU PTB2/PWM2 PORT DATA...
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Page 34: Pin Configuration
SI4925DY Dual P-Channel 30-V (D-S) Rated MOSFET P-Channel MOSFET S O - 8 Pin Configuration EZ1086 1.5AMP POSITIVE VOLATAGE REGULATOR BLOCK DIAGRAM Pin Configuration FUNCTION ADJ/GND OUTPUT INPUT 1 2 3 TAB IS OUTPUT TO-263 TO-220 TYPE PARTS TYPE PARTS Regulator Transistor KA78M05R...