Dell 1800FP Service Manual
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Dell 1800FP Service Manual

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COLOR MONITOR

SERVICE MANUAL

CHASSIS NO. :
FACTORY MODEL:
MODEL: 1800FP
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CL-29
LD803H

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Summary of Contents for Dell 1800FP

  • Page 1: Color Monitor

    COLOR MONITOR SERVICE MANUAL CHASSIS NO. : CL-29 FACTORY MODEL: LD803H MODEL: 1800FP CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ........... 2 ADJUSTMENT ............10 PRECAUTIONS ............3 TROUBLESHOOTING GUIDE ......11 TIMING CHART ............4 PRINTED CIRCUIT BOARD........15 OPERATING INSTRUCTIONS ........ 5 EXPLODED VIEW...........19 WIRING DIAGRAM ..........6 REPLACEMENT PARTS LIST .......21 BLOCK DIAGRAM ........... 7 PIN CONFIGURATION..........26 DESCRIPTION OF BLOCK DIAGRAM.....8 SCHEMATIC DIAGRAM .........

  • 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 << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Back Porch Total Period Video Active Time Front Porch Sync Duration Sync Mode Resolution Frequency Clock Polarity Sort 31.469 640x350 25.175 70Hz...

  • Page 5: Operating Instructions

    OPERATING INSTRUCTIONS FRONT VIEW REAR VIEW Power Connector Front Control Panel D-Sub Signal DVI Connector Connector Front Control Panel 1. Power Button and LED Indicator 4. Up/Down arrow Buttons Turn the display on/off and indicate the status of power Select between OSD items and activates “Hot key” function for management.

  • Page 6: Wiring Diagram

    WIRING DIAGRAM 6631T25008Q Connector Ass’y P/N: MAIN PCB Connector Ass’y P/N: 6631T20015R P902 J705 MATAL FRAME J801 J702 J710 Connector Ass’y P/N: 6631T20008U CN_C02 CN_C01 CN301 MODULE(Need to change LM181E06) 6631T11012P Connector Ass’y P/N: - 6 -...

  • Page 7: Block Diagram

    LCD Module R,G,B differential Micom Memory 3.3 VM LVDS 68HC08-BD48 (KM416S102BT) Inverter (LVD S823) M-CLK Address Data 48 Bit Out - CLK H/V Sync DE ,H/V Sync out R,G,B /Odd 3.3V 2.5V 3.3V Gm5020 AVD D3.3V Reg. Reg. Reg. including AVD D2.5V (ADC / TMDS Rx ) H/V-S ync...

  • Page 8: Description Of Block Diagram

    DESCRIPTION OF BLOCK DIAGRAM 1. 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. The pixel clock for each mode is generated by the PLL. The range of the pixel clock is from 25MHz to 135MHz.
  • Page 9 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 COLLECTION SECONDA RY PRIMARY Operation description_Power 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.

  • Page 10: Adjustment

    ADJUSTMENT All adjustment are thoroughly checked and corrected 2. Adjustment for White Balance when the monitor leaves the factory, but sometimes 1) Display Black pattern at SXGA/60Hz. several minor adjustment may be required. 2) Set External Bright to MAX position and Contrast to Adjustment should be following procedure and after MAX Position.

  • Page 11: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK J801 TROUBLE IN INPUT VOLTAGE BULT-IN POWER (12V) ? CHECK J801 TROUBLE IN 5VST VOLTAGE BULT-IN POWER (5V) ? CHECK U501’s PIN 6. TROUBLE IN IS THIS PIN U501 or X501 OSCILLATED? TROUBLE SOMEWHERE ELSE...
  • Page 12 2. NO RASTER NO RASTER CHECK TROUBLE IN J702 PIN 1, 2, 3 BULT-IN POWER (12V) ? or L703, L704 CHECK TROUBLE IN J702 PIN 8 (5V) ? INVON PATTERN CHECK TROUBLE IN X501 X501 H. PULSE ? CHECK TROUBLE IN U201(GM5020) ? U201 CHECK...
  • Page 13 CHECK TROUBLE IN L204 U201 PULSE ? CHECK CHECK DOT CLOCK U401 PIN 10 PATTERN PULSE ? CHECK CHECK U401 PIN 8 V.PULSE? DVS PATTERN CHECK CHECK U401 PIN 7 DHS PATTERN V.PULSE? TROUBLE IN LCD MODULE - 13 -...
  • Page 14 3. NO CLOCK (CLOCK GENERATOR) NO DOT CLOCK CHECK TROUBLE IN X201 24MHz ? X201 CHECK TROUBLE IN L201 U201 CLOCK ? - 14 -...

  • Page 15: Printed Circuit Board

    C845 C850 L820 J705 L810 J801 U802 L821 C817 J702 L811 R809 C531 C844 R810 U503 C701 C526 C409 C840 R581 R745 C834 C516 U821 R406 U401 R543 R701 L402 C706 R542 R544 C410 C521 C522 C408 C413 U501 C501 R501 C502 R502...
  • Page 16 L703 L704 C519 R201 C214 C222 C223 C212 C207 R215 R203...
  • Page 17 3. POWER BOARD (Component Side) 4. POWER BOARD (Solder Side)

  • Page 19: Exploded View

    EXPLODED VIEW - 19 -...

  • Page 20: Exploded View Parts List

    3043TKK091B PWB(PCB) ASSEMBLY, SUB, LD803H CONTROL TOTAL BRAND 6871TST300A CONNECTOR ASSEMBLY, 30P H-H 100MM UL20276 PANEL LINK LB886F 6631T11012P INVERTER ASSEMBLY, ALPS KUBNKM045A 6-LAMPS,18" DELL 6633TZA008C METAL ASSEMBLY, FRAME MAIN - LB886F 4951TKS078B MAIN TOTAL ASSEMBLY, LD803H BRAND CL-29 3313TL8018A...

  • Page 21: 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 DATE: 2002. 05. 14. DATE: 2002. 05. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC.
  • Page 22 DATE: 2002. 05. 14. DATE: 2002. 05. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C517 0CC101CK41A 100PF 1608 50V 5% R/TP NP0 D701 0DS226009AA KDS226 TP KEC SOT-23 80V 300MA C519 0CC101CK41A 100PF 1608 50V 5% R/TP NP0...
  • Page 23 DATE: 2002. 05. 14. DATE: 2002. 05. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION L401 6210TCE001G HH-1M3216-501 CERATEC 3216MM R/ R401 0RJ1002D677 10K OHM 1/10 W 5% 1608 R/TP L402 6210TCE001G HH-1M3216-501 CERATEC 3216MM R/...
  • Page 24 DATE: 2002. 05. 14. DATE: 2002. 05. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R718 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP RA238 0RHZTCZ001A 100 OHM 1/16 W 5% 3215 R/TP CHI R719 0RJ0222D677 22 OHM 1/10 W 5% 1608 R/TP...
  • Page 25 DATE: 2002. 05. 14. *S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R914 0RD1002Q609 10K 1/4W(3 5% TA52 R917 0RD1201Q609 1.20K 1/4W(3 5% TA52 R918 0RD1000Q609 100 1/4W(3 5% TA52 R920 0RN4702F409 47K 1/6W 1% TA52 R921 0RN2701F409 2.70K 1/6W 1% TA52 R923 0RB0330K607 0.33 OHM 2 W 5% TA62...

  • Page 26: Functional Block Diagram

    GM5020 GENESIS 292P FUNCTIONAL BLOCK DIAGRAM Serial I/F SDRAM/I/F Host Micro- Frame Store Interface processor Interface Anolog Triple YUV to RGB Output Converter Image Panel I/F Digital Zoom/ Data Frame Rate TMDS Caputure/ Gamma [48-bits] TMDS Brightness, Shrink/ Path/ Conversion Measure.

  • Page 27: Pin Configuration

    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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