LG L194WS Скачать руководство пользователя страница 1

Страница: 1 / 24

COLOR MONITOR

SERVICE MANUAL

Website:http://biz.LGservice.com

E-mail:http://www.LGEservice.com/techsup.html

CAUTION

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

CHASSIS NO. : LM57G

MODEL:

L194W

(L194W

-SF

.A**

L194W

(L194W

-BF

.A**Q

( ) **Same model for Service

Содержание L194WS

Страница 1: ... http biz LGservice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO LM57G MODEL L194WS L194WS SFS A Q F L194WS L194WS BFS A Q F Same model for Service ...

Страница 2: ...eparate Sync SOG Digital 3 2 Video Input Signal 1 Type R G B Analog 2 Voltage Level 0 0 71 V a Color 0 0 0 Vp p b Color 7 0 0 467 Vp p c Color 15 0 0 714 Vp p 3 Input Impedance 75 Ω 3 3 Operating Frequency Horizontal 30 83kHz Vertical 56 85Hz 4 MAX RESOLUTION Analog 1440 x 900 75Hz Digital 1440 x 900 60Hz 5 POWER SUPPLY 5 1 Power Adaptor Built in Power Input AC 100 240V 50 60Hz 1 2A 5 2 Power Cons...

Страница 3: ...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...

Страница 4: ...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 ...

Страница 5: ...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...

Страница 6: ...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...

Страница 7: ...V Lines 60 0 806 768 3 6 29 9 H Pixels 78 75 60 123 1312 1024 16 96 176 1024 x 768 V Lines 75 029 800 768 1 3 28 10 H Pixels 100 0 68 681 1456 1152 32 128 144 1152 x 870 V Lines 75 062 915 870 3 3 39 11 H Pixels 92 978 61 805 1504 1152 18 134 200 1152 x 900 V Lines 65 96 937 900 2 4 31 12 H Pixels 108 0 63 981 1688 1280 48 112 248 1280 x 1024 V Lines 60 02 1066 1024 1 3 38 13 H Pixels 135 0 79 976...

Страница 8: ...ve the screws Disassemble back cover 1 Pull the front cover upward 2 Then let the all latches are separated 1 Open the Cabinet latch with Jig 2 Disassemble Cabinet 3 Put the front face down 1 4 2 3 Disassemble Connector 5 ...

Страница 9: ...ter 5V 12V 5V Regulator 3 3V Vcc 5V 3 3V Inverter 12Lamps 12V Flash ROM KEY 1 8V 3 3V Module SDA SCL EEPROM System 3 3V ADC TMDS Rx Scaler MStarACE LVDS Tx OSD MCU SSC Line Buffer 12V gm5726H L204WT 15V Regulator 12V EEPROM EDID BLOCK DIAGRAM ...

Страница 10: ...and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V and one 1 8V regulators to convert power which is provided 5V in Power board 12V is provided for inverter 5V is provided for LCD panel and micom in L194WT WTM WTQ case Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The inverter converts from DC12V to A...

Страница 11: ...ough a bridge rectifier and a bulk 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 ou...

Страница 12: ...m is available for 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 ...

Страница 13: ...5 seconds and press MENU POWER switch for 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a CLEAR ETI To initialize using time c Auto Color W B balance and Automatically sets the gain and offset value press key for over 3 sec d AGING Select Aging mode on off b Module To select applied module d NVRAM INIT EEPROM initialize 24C16 press key for...

Страница 14: ... POWER BOARD AND FIND OUT A SHORT POINT AS OPENING EACH POWER LINE CHECK IC601 1 8V IC602 3 3V LINE NO CHECK CRYSTAL X501 YES YES YES CHECK P702 VOLTAGE PIN5 PIN6 5V IS IC601 PIN2 1 8V IC602 PIN2 3 3V CHECK IC501 PIN108 PULSE 1 2 1 3 1 4 Waveforms 1 P702 5 6 2 IC601 2 3 IC602 2 4 IC501 108 ...

Страница 15: ...D CHECK POWER BOARD LIPS CHECK P702 VOLTAGE PIN5 6 5V NO NO NO NO 1 CONFIRM BRIGHTNESS OSD CONTRL STATUS 2 CHECK MICOM DIM ADJ PORT CHECK P702 PIN10 POWER BOARD LIPS CHECK PULSE AS CONTACTING PROBE TO THE LAMP WIRE OF THE LCD MODULE REPLACE LCD MODULE YES 1 2 3 YES YES YES Waveforms 1 P702 5 6 2 P702 10 3 LAMP CURRENT ...

Страница 16: ...01 CHECK IC501 PIN2 3 3V PIN17 1 8V NO NO NO CHECK IC601 1 8V IC602 3 3V U501 PIN 108 109 14 3MHZ CHECK CONNECTION LINE FROM D SUB TO IC501 TROUBLE IN CABLE OR LCD MODULE YES YES NO RASTER OSD IS NOT DISPLAYED CHECK IC501 PIN89 H SYNC AND PIN90 V SYNC IS PULSE APPEARED AT SIGNAL PINS YES 1 Waveforms 4 IC501 108 ...

Страница 17: ...UBLE IN DPM TROUBLE IN DPM TROUBLE IN IC501 CHECK PC PC IS GOING INTO DPM MODE NO CHECK H V SYNC LINE NO YES CHECK R720 AND R726 SYNC APPEARED CHECK IC501 PIN89 90 SYNC PULSE YES 1 H SYNC 2 V SYNC Waveforms 1 2 ...

Страница 18: ...WIRING DIAGRAM 18 6631900109A 6631T20023J EAD30368601 30P 6P 11P ...

Страница 19: ...EXPLODED VIEW 19 ...

Страница 20: ... version AAN30377506 Base AssemblySTAND L204WT LM57A SILVER Best buy mercury label BLACK EBR30204401 PCB Assembly SUB S T LM57G L204WT BFQ KRDBQFN CONTORL TOTAL COMMON L294WT EBU36182803 Main Total Assembly BAIKAL II BRAND LM 57H V NOVATEK EBU30205114 Main Total Assembly L194CW BFQ BRAND LM57G F GENESIS EBR36269402 or Power Supply Assembly Baikal2 for 19 Wide FREE L19xW LCD LG INNOTEK LIEN CHANG B...

Страница 21: ......

Страница 22: ......

Страница 23: ...1 3 2 4 2N3906 ...

Страница 24: ...JUNE 2007 P NO MFL32179224 Printed in China ...

Результаты поиска

Содержание L194WS

Отзывы:

Похожие инструкции для L194WS

Бренды по названию

Популярные бренды

LG L194WS, Руководство по обслуживанию

Результаты поиска

Содержание L194WS

Отзывы:

Похожие инструкции для L194WS

Бренды по названию

Популярные бренды