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Mitsubishi DiamondPoint NX85LCD, Service Manual, Page: 1 / 46

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Mitsubishi DiamondPoint NX85LCD Service Manual Download Page 1

MITSUBISHI

DiamondPoint NX85LCD

COLOR MONITOR
SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT, 
READ THE  SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS NO. : CL-29
FACTORY MODEL: LN801H
ID LABEL MODEL No: L182ET

MODEL: RDT181V(BK), NX85LCD

LCD1855NX-BK

Summary of Contents for DiamondPoint NX85LCD

Page 1: ...Point NX85LCD COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 29 FACTORY MODEL LN801H ID LABEL MODEL No L182ET MODEL RDT181V BK NX85LCD LCD1855NX BK ...

Page 2: ...ed to 75Hz by EDID 4 POWER SUPPLY 4 1 Power Adaptor Built in Power Input AC 100 240V 50 60Hz 1 0A 4 2 Power Consumption 5 ENVIRONMENT 5 1 Operating Temperature 5 C 35 C 41 F 95 F Ambient 5 2 Relative Humidity 10 80 Non condensing 5 3 MTBF 50 000 Hours Min 6 DIMENSIONS with TILT SWIVEL Width 406 mm 15 98 Depth 215 mm 8 46 Height 427 mm 16 81 7 WEIGHT with TILT SWIVEL Net Weight 8 2kg 18 08 lbs Gros...

Page 3: ...S Data1 T M D S Data1 T M D S Data1 3 Shield T M D S Data3 T M D S Data3 5V Power Ground return for 5V H Sync and V Sync Pin Signal DVI D 1 8 9 17 24 16 16 17 18 19 20 21 22 23 24 Hot Plug Detect T M D S Data0 T M D S Data0 T M D S Data0 5 Shield T M D S Data5 T M D S Data5 T M D S Clock Shield T M D S Clock T M D S Clock T M D S Transition Minimized Differential Signaling DVI D Connector Digital ...

Page 4: ...t Number of year 2 ex 2000 0 2001 1 2002 2 3 4 3 Classification code ex RDT181V BK Model 1 4 Serial Number This Serial number doesn t reset at each month ex 00001 01234 01235 99999 00001 00010 2 Month code of Production Month 1 2 3 4 5 6 7 8 9 10 11 12 Number 01 02 03 04 05 06 07 08 09 10 11 12 ...

Page 5: ... such as pencil or pen as this may result in damage to the panel Protect the 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 c...

Page 6: ...600 21 3 1 H 49 725 1152 832 224 64 32 V 74 550 667 624 39 3 1 H 48 363 1344 1024 160 136 24 V 60 004 806 768 29 6 3 H 56 476 1328 1024 144 136 24 V 70 069 806 768 29 6 3 H 60 023 1312 1024 176 96 16 V 75 029 800 768 28 3 1 H 63 981 1688 1280 248 112 48 V 60 020 1066 1024 38 3 1 H 79 976 1688 1280 248 144 16 V 75 025 1066 1024 38 3 1 Mode H V Sort 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 28 324 28 3...

Page 7: ...s indicator color change to amber 3 MENU Button Use these buttons to enter or exit the On Screen Display 4 Button Use these buttons to choose or adjust items in the On Screen Display 5 AUTO SELECT Button Automatically adjust vertical position horizontal position pixel clock and phase Use this button to enter a selection in the On Screen Display 6 SOURCE Button Use this button to make Dsub or DVI c...

Page 8: ...CB MATAL FRAME J702 J801 J705 P902 J710 CN7 CN3 CN2 CN1 CN6 CN5 CN4 CN_C01 CN301 CN_C02 Connector Ass y P N 6631T11012P Connector Ass y P N 6631T25008Q Connector Ass y P N 6631T20008U Connector Ass y P N 6631T20015R ...

Page 9: ...Out CLK DE H V Sync out R G B Odd LCD Module R G B differential Data 48 Bit Address Inverter CTL Module CTL R G B Inverter Digital Signal 3 3V Reg DVDD 3 3V AVDD 3 3V 12V Power CTL 12V 2 5V Reg DVDD2 5V AVDD2 5V 3 3V Reg PVDD 3 3V 3 3 VM 5V 5V 5V H V Sync H V Sync 3 3 VM Power Board 12V 5V AVDD3 3V AVDD2 5V ...

Page 10: ...C Video controller are merged to one chip Gm5020 by Genesis Also FRC is separate 2 Display Data Transmitter Part LVDS This part transmit digital signal from the Scaler to the receiver of module 3 Power Part This part consists of the one 5V two 3 3V and one 2 5 regulators to convert power which is provided 12V 5V in Power Board 12V is provided for inverter and LCD Panel 5V is provided for Micom Als...

Page 11: ...fer This part function is transfer the primary energy to secondary through a power transformer 4 PWM control circuit 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 achieve the dc output stabilize and also the over power protection is also monitor by th...

Page 12: ... 50 60Hz Input Signal 1280 X1024 60Hz default Aging Time More than 30 Minutes Aging Temperature 10 35 degrees Adjustment equipment and equipment connection setup Refer to figure 1 VG819 or equivalent 1 IBM compatible PC 2 Adjustment program for LN801H 3 Adapter Box 220 IBM Compatible PC Video Signal Generator PARALLEL PORT Power inlet required Power LED ST Switch Power Select Switch 110V 220V Cont...

Page 13: ...OM ALL INIT command and Enter 4 This will make all data to default state and make aging mode 5 Remove signal cable from the monitor LCD IIC ADJUST PROGRAM LCD185 1 DAT MENU Move Arrow or Space MENU Select Enter COLOR ADJ COMMAND EDIT EEPROM QUIT DIST ADJ LCD IIC ADJUST PROGRAM LCD185 1 DAT MENU Move Arrow or Space Quit ESC MENU Select Enter COLOR ADJ COMMAND EDIT EEPROM QUIT DIST ADJ ALL Init EDID...

Page 14: ...e adjustment is succeeded If the message of AUTO ERROR is displayed at front of screen because the adjustment is failed do adjust again 5 Display Full white pattern at SXGA 60Hz 6 Select DRIVE CAL command and Enter 7 6500K and 9300k are automatically adjusted and saved to the EEPROM If the message of AUTO OK OK is displayed at front of screen The adjustment is succeeded If the message of AUTO ERRO...

Page 15: ... ADJUST PROGRAM LCD185 1 DAT MENU Move Arrow or Space Quit ESC MENU Select Enter COLOR ADJ COMMAND EDIT EEPROM QUIT DIST ADJ PRESET START PRESET EXIT LCD IIC ADJUST PROGRAM LCD185 1 DAT MENU Move Arrow or Space Quit ESC MENU Select Enter COLOR ADJ COMMAND EDIT EEPROM QUIT DIST ADJ ALL Init EDID A WR EDID D WR EDID Read EEPROM Read LCD IIC ADJUST PROGRAM LCD185 1 DAT MENU Move Arrow or Space Quit E...

Page 16: ... equals to 9 More information refer to ASCII Code Table LCD IIC ADJUST PROGRAM LCD185 1 DAT MENU Move Arrow or Space Quit ESC MENU Select Enter COLOR ADJ COMMAND EDIT EEPROM QUIT DIST ADJ MODEL SAVE MODEL SEL EDID INFO DDC INFO LCD IIC ADJUST PROGRAM LCD185 1 DAT Don t save Exit Esc key Edit Enter key Save Exit F10 key COLOR ADJ COMMAND EDIT EEPROM QUIT DIST ADJ EDID 0 1 2 3 4 5 6 7 0 00 00 18 01 ...

Page 17: ...nce Full White 1 Measure color coordinate at each color temperature 6500k 9300k 2 Measure color coordinate on R G B if required 6500k Wx 0 313 0 03 Wy 0 329 0 03 9300k Wx 0 281 0 03 Wy 0 31 1 0 03 5 DPM Full White All Mode Check wattage and LED color at each mode 1 Normal mode H V on on 2 Stand by mode H V off on 3 Suspend mode H V on off 4 DPM off mode H V off off 5 Power s w off mode 1 53 W 3 W ...

Page 18: ...ixels or sub pixels with more than one fault of 5 Max 3 Note 7 Two or more pixels or sub pixels with more than one fault of 1 Two or more pixels or sub pixels with more than one fault of 2 Max 15 Max 6 Adjacent Dots Note 3 Fault cluster Not Allowed Note 8 8 Min Distance between bright dots Total amount of Bright Dot G Note 9 Every dot herein means sub pixel each Red Green or Blue color Note 10 Bri...

Page 19: ...dots R G G B Note 5 Distance between bright dots Count as adjacent 3dots Do not count as adjacent 3 dots R R G G B B R R G G B B R G G B B R Distance between the same color Combination with Bright Dot Dark Dot Combination with the different color Count as defect Do not count as defect Note 6 Distance between the group of 6 s Count as defect R R R R G G G G B B B B ...

Page 20: ...G R G 5x5 pixels 5x5 pixels 5x5 pixels Count as defect Do not count as defect 1 2 Polarizer Defects Items Criteria Scratches Linear 0 01 W 0 05 1 0 L 10 0 N 4 Dent Circular 0 2 D 0 5 N 4 Note a Average Diameter b Linear a 2b Circular a 2b c Extraneous substances which can be wiped out like Finger Print Particles are not considered as a defect d Defects which is on the Black Matrix outside of Activ...

Page 21: ...Average diameter a b 2 D a b 1 4 Line Defect All kinds of line defects such as vertical horizontal or cross are not allowed 1 5 Bezel Appearance Scratches minor bents stains particles on the LCD Bezel frame are not considered as a defect 1 6 Display tilt and Position difference Any part of image must not be missed by the position difference or the display tilt L1 L1 L2 L2 L3 L3 L4 L4 0 Monitor Bez...

Page 22: ...UBLE IN BULT IN POWER CHECK J801 5VST VOLTAGE 5V NO NO POWER POWER INDICATOR OFF TROUBLE SOMEWHERE ELSE TROUBLE IN BULT IN POWER CHECK J801 INPUT VOLTAGE 12V NO TROUBLE IN U501 or X501 NO YES YES YES CHECK U501 s PIN 6 IS THIS PIN OSCILLATED ...

Page 23: ...RASTER TROUBLE IN POWER ADATER or L703 L704 CHECK J702 PIN 1 2 3 12V NO TROUBLE IN X501 CHECK X501 H PULSE NO TROUBLE IN U201 CHECK U201 GM5020 NO TROUBLE IN U201 NO TROUBLE IN U201 CHECK U301 U302 U303 PIN 35 MEMORYCLK NO YES YES YES YES YES CHECK L201 L202 L203 PULSE ...

Page 24: ...OT CLOCK PATTERN NO TROUBLE IN U201 NO CHECK DVS PATTERN NO CHECK DHS PATTERN NO YES YES YES YES YES TROUBLE IN LCD MODULE CHECK U401 PIN 8 V PULSE CHECK U401 PIN 7 V PULSE CHECK U401 PIN 10 PULSE CHECK L204 PULSE ...

Page 25: ... 25 3 NO CLOCK CLOCK GENERATOR NO DOT CLOCK TROUBLE IN X201 CHECK X201 24MHz NO TROUBLE IN U201 CHECK L201 CLOCK NO YES YES ...

Page 26: ...BLE IN DPM TROUBLE IN DPM TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO TROUBLE IN X501 NO TROUBLE IN SIGNAL CABLE NO YES YES YES CHECK U501 PIN 6 WAVEFORM 24MHz CHECK R233 R234 CHECK U501 PIN 11 0V ...

Page 27: ...5 R224 D702 D703 C850 C844 U821 C834 RA210 RA208 RA204 RA206 RA202 U201 20 14 15 16 17 18 19 8 9 10 11 12 13 2 3 4 5 6 7 1 A B C D E C270 C258 R221 R220 C279 C278 C260 C259 C106 R714 R703 R122 R223 D701 D731 D730 C845 R582 R545 C203 C202 C201 C204 C205 C206 C276 R222 C280 Q102 R130 Q103 R713 R132 R133 R131 C152 R716 R715 L820 L810 U503 C531 R581 C516 C517 R544 R543 R542 R510 R508 MODEL LD803H DATE...

Page 28: ...233 C818 C836 C835 C232 C231 C220 L202 L201 C217 C224 C225 C234 C223 C222 R201 C227 C226 C218 C265 C264 C239 C240 R240 R239 R825 C236 C235 L204 L203 C237 C233 R202 C228 C273 C269 C275 C514 R511 C515 R524 C257 C238 C274 C272 C505 C504 R513 R512 C506 C507 R525 R526 R527 C823 C827 C829 R535 R539 C519 R564 R537 R538 R536 C508 R505 R580 R531 C832 C824 R831 C826 C830 R826 R534 R518 C520 R516 C513 C833 R...

Page 29: ...3 POWER BOARD Component Side 4 POWER BOARD Solder Side 5 CONTROL BOARD SW8 G A LED1 R4 R6 SW7 SW6 R3 R8 SW5 R7 R5 SW4 SW3 SW2 SW1 J1 C2 C1 R2 R1 G A ...

Page 30: ... 30 EXPLODED VIEW 1 15 16 11 10 6 5 7 2 4 8 9 12 a a b c 3 14 13 ...

Page 31: ...ID CRYSTAL DISPLAY LM181E06 A4M1 LG PHILPS TFT COLOR SXGA 18 1 LVDS SMM BACK COVER ASSEMBLY LN801H 3808TKL030 EP94 BLACK TILT SWIVEL ASSEMBLY LN801H NMV BLACK PWB PCB ASSEMBLY SUB LB800H CONTROL TOTAL BRAND CONNECTOR ASSEMBLY 30P H H 100MM UL20276 PANEL LINK LB886F INVERTER ASSEMBLY LG PHILIPS NMC1805A 2 6 LAMPS 18 NMV METAL ASSEMBLY FRAME MAIN LN801H E06 PWB PCB ASSEMBLY MAIN LN801H ALRDG BRAND C...

Page 32: ...P B Y5P C272 0CH3104K566 0 1UF 50V K X 2012 R TP C273 0CH3103K516 10000PF 50V K B 2012 R TP C274 0CH3103K516 10000PF 50V K B 2012 R TP C275 0CH3104K566 0 1UF 50V K X 2012 R TP C276 0CH3103K516 10000PF 50V K B 2012 R TP C278 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C279 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C280 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C301 0CK103CK51A 0 01UF 1608 50V 10 R TP B Y5P C3...

Page 33: ...OROLA SOT23 30 D701 0DS226009AA KDS226 TP KEC SOT 23 80V 300MA DATE 2002 07 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION D702 0DS226009AA KDS226 TP KEC SOT 23 80V 300MA D703 0DS226009AA KDS226 TP KEC SOT 23 80V 300MA D704 0DS226009AA KDS226 TP KEC SOT 23 80V 300MA D730 0DS226009AA KDS226 TP KEC SOT 23 80V 300MA D731 0DS226009AA KDS226 TP KEC SOT 23 80V 300MA D732 0DS226009AA KDS226 TP KEC SOT ...

Page 34: ...RT NO DESCRIPTION SPECIFICATION R406 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R501 0RJ1004D677 1000000 OHM 1 10 W 5 1608 R TP R502 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R505 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R508 0RJ4700D677 470 OHM 1 10 W 5 1608 R TP R511 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R512 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R513 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R514 0RJ1000D677...

Page 35: ...1A 100 OHM 1 16 W 5 3215 R TP CHI RA238 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP CHI RA239 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP CHI RA240 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP CHI RA241 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP CHI DATE 2002 07 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION RA242 0RHZTCZ001A 100 OHM 1 16 W 5 3215 R TP CHI X201 6202TST001E SX 1 SUNNY CHIP 24MHZ 30PPM 20P X501 6202T...

Page 36: ...X7R LED1 0DLLT0148AA LITEON LTST C195KGJSKT R TP GRE R1 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R2 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R3 0RJ8200D677 820 OHM 1 10 W 5 1608 R TP R4 0RJ8200D677 820 OHM 1 10 W 5 1608 R TP R5 0RJ1501D677 1 5K OHM 1 10 W 5 1608 R TP R6 0RJ1501D677 1 5K OHM 1 10 W 5 1608 R TP R7 0RJ2201D677 2200 OHM 1 10 W 5 1608 R TP R8 0RJ2201D677 2200 OHM 1 10 W 5 1608 R TP SW1 1...

Page 37: ...verter Frame Rate Conversion Control Zoom Shrink Filter Gamma Control Panel I F 48 bits Output Control Output Data Path Timing Control Brightness Contrast Hue Saturation TMDS RX Video YUV 8 bits Digital TMDS Input FUNCTIONAL BLOCK DIAGRAM Frame Buffer SDRAM SGRAM Output to LCD OSC or XTAL Micro controller Video Decoder Anolog RGB Composite S Video DVI gm5020 SYSTEM BLOCK DIAGRAM ...

Page 38: ...ESS BUFFERS COLUMN DECODERS START STOP LOGIC XDEC DATA IN STORAGE HIGH VOLTAGE TIMING CONTROL STATE COUNTERS SLAVE SCL A0 A1 VCC VSS A2 ADDRESS COMPARATORS CONTROL LOGIC ACK E PROM 2 PIN CONFIGURATION DIP Package p SOIX Package J TSSOP Package U BLOCK DIAGRAM 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 ...

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