HP LP2065 - 20.1" LCD Monitor Service Manual Download

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COLOR MONITOR
SERVICE MANUAL

CAUTION

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

MODEL: LP2065

CHASSIS NO. : CL-96

Summary of Contents for LP2065 - 20.1" LCD Monitor

Page 1: ...COLOR MONITOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL LP2065 CHASSIS NO CL 96 ...

Page 2: ...al Type Separate Sync Digital SOG 3 2 Video Input Signal 1 Type R G B Analog 2 Voltage Level 0 0 7 V a Color 0 0 0 Vp p b Color 7 0 0 35 Vp p c Color 15 0 0 7 Vp p 3 Input Impedance 75 Ω 3 3 Operating Frequency Horizontal Analog 30 94kHz Horizontal Digital 30 91 2kHz Vertical 48 85Hz 4 MAX RESOLUTION D sub Analog 1600 x 1200 75Hz DVI Digital 1600 x 1200 60Hz 5 POWER SUPPLY 5 1 Power Adaptor Built ...

Page 3: ... 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 I 1 8 9 17 24 16 16 17 18 19 20 21 22 23 24 C1 C2 C3 C4 C5 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 Analog Red Analog Green Analog Blue Analog H Sync Analog Ground T M D S Transition Minimized Dif...

Page 4: ...e 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 circuit within the module If the surface of panel become dirty please wipe i...

Page 5: ...st receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices ...

Page 6: ...tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coati...

Page 7: ...onnection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on t...

Page 8: ...V 75 029 Hz 800 768 32 3 28 1 10 H 94 5 68 677 KHz 1376 1024 352 96 208 48 1024 x 768 V 85 Hz 808 768 40 3 36 1 11 H 100 68 681 KHz 1456 1152 304 128 144 32 1152 x 870 V 75 062 Hz 915 870 45 3 39 3 MAC 21 12 H 92 94 61 795KHz 1504 1152 352 128 194 30 1152x900 V 65 950Hz 937 900 37 4 31 2 13 H 108 60 000 KHz 1800 1280 520 112 312 96 1280 x 960 V 60 000 Hz 1000 960 40 3 36 1 14 H 108 63 981 KHz 1688...

Page 9: ...e back cover 1 Remove the stand 2 5 6 Remove the 4 screws from each side of metal frame Pull out the usb pcb 7 8 1 Pull the front cover upward 2 Then let the all latches are separated 3 Put the front face down Remove the screws 3 Remove the screws 4 ...

Page 10: ...h MC14066B Switch MC14066B EEPROM Analog 1 EEPROM Digital 1 EEPROM Analog 2 EEPROM Digital 2 DVI 1 DVI 2 Analog 2 Switch MC14066B Digital Signal TMDS MST9251 ADC PLL DVI Rx Scaling OSD Real Color 2 5V EEPROM Micom DDR RAM 1 8V 2 5V 3 3V LVDS Vcc 18V LPL 5V AUO Panel Up stream Down stream Down stream LED Power Auto Up Down USB Key Down stream Down stream Menu Analog 1 BLOCK DIAGRAM ...

Page 11: ...600 X 1200 resolution signal and outputs 8 bit R G B signal to transmitter Especially pre amp ADC Video controller Transmitter are merged to one chip MST9251A by M star This part transmit digital signal from the Scaler to the receiver of module 2 Power Part This part consists of the 3 3V 2 5V and 1 8V regulators to convert power which is provided 5V in Power board 18V is provided for LCD panel Als...

Page 12: ...lk capacitor 3 Energy Transfer This part function is for transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter 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 stabilized and also the ove...

Page 13: ... is available to LCD Monitor only 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder b Run Userport exe c Remove all default number d Add 300 3FF e Click Start button f Click Exit button 2 EDID Read Write 1 Run WinEDID exe 2 Edit Week of Manufacture Year of Manufacture Serial Number a Input User Info Data b Click Update button c Click Write button ...

Page 14: ...ide of the display 2 Wait for about 5 seconds and press MENU MINUS and POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a Exit b ADC CAL W Balance and Automatically sets the gain and offset value c Nvram Initial EEPROM initialize d AGING Select Aging mode on off e Module select Select applied module f EDID select Select Anal...

Page 15: ...FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK 5VS LINE OPEN CHECK CHECK 2 5V AND 1 8V LINE NO CHECK X TAL YES YES YES YES CHECK J303 VOLTAGE PIN5 PIN6 5V CHECK U501 PIN 8 VOLTAGE 5V IS U401 PIN102 3 3V PIN102 2 5V VOLTAGE CHECK U401 PIN 202 PULSE 1 2 1 3 1 4 NO PROBLEM Waveforms 1 J303 5 6 5V 2 U401 102 3 3V 3 U401 102 2 5V 4 U401 202 ...

Page 16: ...T DISPLAYED CHECK LIPS J303 PIN5 6 5V NO NO NO NO 1 CONFIRM BRIGHTNESS OSD CONTRL STATE 2 CHECK MICOM DIM ADJ PORT J303 PIN 10 5V LIPS CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL CONTACT PROBE TO CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE REPLACE CCFL LAMP IN THE LCD MODULE YES YES YES YES ...

Page 17: ...1 PIN102 3 3V PIN102 2 5V NO NO NO CHECK U205 U207 U401 PIN 202 203 14 318MHZ CHECK CONNECTION LINE FROM DVI I TO U401 TROUBLE IN CABLE OR LCD MODULE YES NO RASTER OSD IS NOT DISPLAYED U401 PIN18 36 IS 64KHz H SYNC PIN19 37 IS 60Hz V SYNC IS PULSE APPEARED AT SIGNAL PINS AT MODE 15 YES YES 4 4 U401 202 203 Waveforms ...

Page 18: ... 18 4 TROUBLE IN DPM TROUBLE IN DPM TROUBLE IN U401 CHECK H V SYNC LINE NO CHECK U401 PIN 18 19 36 37 SYNC PULSE YES 5 U401 18 36 H SYNC 5 U401 19 37 V SYNC Waveforms 5 ...

Page 19: ... 19 WIRING DIAGRAM 6631T20034M 11P 10P 15P 30P 6631900055A 6631T20034E 6631900053B ...

Page 20: ...EXPLODED VIEW 20 010 020 060 070 080 090 110 030 120 130 040 100 100 050 140 ...

Page 21: ...H2065N KLUSEPT 48149K0019A Plate PRESS SPTE T0 3 USB SHIELD LH2065N HP 4814TKK264A Plate PRESS SECC T0 3 INVERTER LL180PL SHIELD 49519S0015A Plate Assembly FRAME HP 49509K0278A Plate FIX HP QUICK RELEASE 35519K0008A Cover Assembly LH2065N REAR 35509K0151A QUICK RELEASE 6410TEW010A Power Cord CEE LP 34A H05VV FX3C LS 60_1 87M_BLK LP 34A LS 60 1 87M 250V 16A H05VV F 3X0 75MM2 BLACK VDE SEMKO N LONGW...

Page 22: ...CRIPTION SPECIFICATION C335 0CK103CK51A 0603B103K500CT 10nF 10 50V C336 0CK103CK51A 0603B103K500CT 10nF 10 50V C337 0CK104CK56A 0603B104K500CT 100nF 10 50V C338 0CK103CK51A 0603B103K500CT 10nF 10 50V C341 0CC680CK41A C1608C0G1H680JT 68pF 5 50V C343 0CC101CK41A C1608C0G1H101JT 100pF 5 50V C344 0CC101CK41A C1608C0G1H101JT 100pF 5 50V C349 0CK104CK56A 0603B104K500CT 100nF 10 50V C350 0CK224CF56A 0603...

Page 23: ...0TP50VB10M 10uF 20 50V C610 0CK103CK51A 0603B103K500CT 10nF 10 50V C611 0CK105CD56A C1608X7R1A105KT 1uF 10 10V C612 0CC360CK41A C1608C0G1H360JT 36pF 5 50V DATE 2006 11 20 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C613 0CC360CK41A C1608C0G1H360JT 36pF 5 50V C614 0CK104CK56A 0603B104K500CT 100nF 10 50V C615 0CK104CK56A 0603B104K500CT 100nF 10 50V C616 0CK103CK51A 0603B103K500CT 10nF 10 50V C618 ...

Page 24: ... 11 20 S AL LOC NO PART NO DESCRIPTION SPECIFICATION Q201 0TR390409AE KST3904 NPN 6V 60V 40V 200MA Q202 0TR390409AE KST3904 NPN 6V 60V 40V 200MA Q301 0TR390609FA KST3906 MTF PNP 5V 40V 40 Q302 0TR390609FA KST3906 MTF PNP 5V 40V 40 Q305 0TR390409AE KST3904 NPN 6V 60V 40V 200MA Q306 0TR390409AE KST3904 NPN 6V 60V 40V 200MA Q320 0TR390409AE KST3904 NPN 6V 60V 40V 200MA Q321 0TR390409AE KST3904 NPN 6V...

Page 25: ... 1 8W 20 R382 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 10 R383 0RJ0472D677 MCR03EZPJ470 47OHM 5 1 10W DATE 2006 11 20 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R384 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 10 R385 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 10 R386 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 10 R387 0RJ4701D677 MCR03EZPJ472 4 7KOHM 5 1 10 R388 0RJ1001D677 MCR03EZPJ102 1KOHM 5 1 10W R389 0RJ4701D677...

Page 26: ...03EZPJ000 0OHM 5 1 10W 1 R628 0RJ1502D677 MCR03EZPJ153 15KOHM 5 1 10W R629 0RJ1502D677 MCR03EZPJ153 15KOHM 5 1 10W R630 0RJ1502D677 MCR03EZPJ153 15KOHM 5 1 10W R631 0RJ1502D677 MCR03EZPJ153 15KOHM 5 1 10W R632 0RJ1004D677 MCR03EZPJ105 1MOHM 5 1 10W R633 0RJ1003D677 MCR03EZPJ104 100KOHM 5 1 10 RA401 0RJ0222C687 RCA86TRJ22R0 22OHM 5 1 16W RA402 0RJ0222C687 RCA86TRJ22R0 22OHM 5 1 16W RA403 0RJ0222C68...

Page 27: ...SCHEMATIC DIAGRAM 27 1 SCALER MST9251A MEMORY 4 2 3 5 Waveforms 2 U401 102 3 3V 3 U401 102 2 5V 4 U401 202 203 5 U401 18 36 H SYNC 5 U401 19 37 V SYNC ...

Page 28: ... 28 2 POWER ...

Page 29: ... 29 3 CONNECTOR JACK Waveforms 1 J303 5 6 5V 1 ...

Page 30: ... 30 4 MICOM ...

Page 31: ... 31 5 USB HUB ...

Page 32: ...Nov 2006 P NO 38289S0017L Printed in Korea ...

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