LG FLATRON 20EN33SS Скачать руководство пользователя | Manualshive

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TROUBLESHOOTING GUIDE

1. NO POWER

NO POWER

(POWER INDICATOR OFF)

CHECK IC103

NO

NO

NO

CHECK CRYSTAL(X100)

YES

YES

1

2

1

3

1

4

Waveforms

1

2

3

4

Copyright
Only for training and service purposes

LGE Internal Use Only

2010 LG Electronics. Inc. All right reserved.

1.2V

YES

CHECK

IC102 PIN3(5V)

IS IC103 PIN25(3.3V)

PIN27(1.2V)

CHECK IC103 PIN 42,43

PULSE

CHECK ADAPTER(19V)

CHECK IC102 PIN3 (5V)

IC102 PIN3 (5V)

IC103 PIN27 (1.2V)

IC103 PIN 25 (3.3V)

IC103 PIN42,43

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Содержание FLATRON 20EN33SS

Страница 1: ...site 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 LM13I MODEL Same model for Service Internal Use Only 20EN33SS 20EN33SS BA ...

Страница 2: ...daptor Built in Power Input AC 100 240 V 50 60 Hz 1 0A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 50 F 95 F 6 2 Relative Humidity 10 80 Non condensing 6 3 MTBF 30 000 HRS with 90 Confidence level Lamp Life 30 000 Hours Min 7 DIMENSIONS with TILT Width 46 3 cm Depth 16 8 cm Height 35 7 cm 8 WEIGHT with TILT SWIVEL Net Weight 2 2 kg Gross Weight 3 2kg SPECIFICATIONS MODE...

Страница 3: ...cuit 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 it off with a softmaterial Cleaning with a dirty or rough ...

Страница 4: ...fore 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 can be damaged easily by static electricity Such componen...

Страница 5: ...h 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 coating to the areas Small Signal Discrete Transistor Removal ...

Страница 6: ...ut 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 the component side of the circuit board 1 Remove the defec...

Страница 7: ...25 175 59 94 525 480 10 2 33 640 x 480 H Pixels 37 5 840 640 16 64 120 3 V Lines 31 5 75 500 480 1 3 16 640 x 480 H Pixels 37 879 1056 800 40 128 88 4 V Lines 40 0 60 317 628 600 1 4 23 800 x 600 H Pixels 46 875 1056 800 16 80 160 5 V Lines 49 5 75 0 625 600 1 3 21 800 x 600 H Pixels 48 363 1344 1024 24 136 160 6 V Lines 65 0 60 0 806 768 3 6 29 1024 x 768 H Pixels 60 023 1312 1024 16 96 176 7 V L...

Страница 8: ...t the front face down Disassemble back cover DISASSEMBLY Set Place the monitor face Down on the cushion or soft cloth Remove the stand body and atand base from the product Copyright 2010 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes ...

Страница 9: ... 2010 LG Electronics Inc All right reserved RTD2280LJ Realtek RGB R G B H V SERIAL Flash LED PANEL 19 5 F HD LVDS RGB IIC V_LED F B SPI Data CLK Key1 Key2 LED RED 19V From Adapter 6 Keys Power MENU Function SES AUTO EXIT 19 to 5V DC DC 5V to 3 3V LDO LED B L T Con 5V System 3 3V System 5V ...

Страница 10: ... the video signal converted analog to digital interpolates input to 1600 X 900 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of one regulator convert power from 19V to 5V 19V is provided by adapter 5V is provided for LCD panel Also 5V is converted 3 3V by regulator Converted Power is provided for IC in the main board Boost converter of LED block co...

Страница 11: ...serPort 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 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Elec...

Страница 12: ...al 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 over 3 sec e R G B 9300K Allows you to set the R G B 930...

Страница 13: ... 4 Waveforms 1 2 3 4 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved 1 2V YES CHECK IC102 PIN3 5V IS IC103 PIN25 3 3V PIN27 1 2V CHECK IC103 PIN 42 43 PULSE CHECK ADAPTER 19V CHECK IC102 PIN3 5V IC102 PIN3 5V IC103 PIN27 1 2V IC103 PIN 25 3 3V IC103 PIN42 43 ...

Страница 14: ...SD IS NOT DISPLAYED YES 1 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved CHECK IC103 PIN25 3 3V PIN27 1 2V NO YES IC103 PIN42 43 CHECK IC103 PIN36 V SYNC And PIN35 H SYNC 1 CHECK PIN 42 43 SOLDERING CONDITION 2 CHECK X100 3 TROUBLE IN IC103 CHECK IC102 PIN3 5V IC504 1 2V ...

Страница 15: ...S GOING INTO DPM MODE NO CHECK H V SYNC LINE NO YES YES 1 H SYNC 2 V SYNC Waveforms 1 2 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved CHECK P300 PIN13 HSYNC PIN14 VSYNC CHECK IC103 PIN35 36 SYNC PULSE ...

Страница 16: ...WIRING DIAGRAM 16 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved EAD38438703 6631900011S EAD62186001 LGD EAD62122568 MAIN BOARD ...

Страница 17: ...2010 300 400 510 900 410 520 200 or 540 530 ...

Страница 18: ......

Страница 19: ...JANUARY 2013 P NO Printed in China MFL67715234 ...

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