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LG 23EA53V, Руководство по обслуживанию

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LG 23EA53V Скачать руководство пользователя страница 14

- 14 -

TROUBLESHOOTING GUIDE

1. NO POWER

NO POWER

(POWER INDICATOR OFF)

NO

NO

NO

YES

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

NO

CHECK CRYSTAL(X100)

JK100#1

IC102#3

IC102#1

IC104#42,43

IS ADAPTER 

  VOLTAGE 19V?

IS IC102 PIN 3(5V)?

"IS IC 100 PIN1 (3.3V),
     PIN3 (1.2V)?" 

Check IC101 PIN 42,43 
         PULSE

CHECK IC101

CHECK Adapter

CHECK IC102(5V)

CHECK IC 100 PIN1(3.3),PIN

PIN3(1.2V)

Содержание 23EA53V

Страница 1: ...ebsite 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 LM13E MODEL Same model for Service Internal Use Only 23EA53V 23EA53V B ...

Страница 2: ...ENT 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 54 4 cm 21 47 Depth 18 1 cm 7 12 Height 40 6 cm 15 98 8 WEIGHT with TILT SWIVEL Net Weight 3 1 kg 6 82 lbs Gross Weight 4 2 kg 9 24 lbs SPECIFICATIONS MODE POWER ON NORMAL STAND BY SUSPEND DPMS OFF POWER S ...

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: ...00 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 Lines 78 75 75 029 800 768 1 3 28 1024 x 768 H Pixels 67 500 1600 1152 64 128 256 8 V Lines 108 0 75 000 900 864 1 3 32 1152 x 864 H Pixe...

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: ...NU SES FUNC AUTO INPUT Exit 19V From Adapter 19 to 5V DC DC 5V to 3 3V LDO 5V to1 2V LDO LED B L T Con 5V System 3 3V Core 1 2V NT68772 Novatek RGB R G B H V 4M SERIAL Flash LED PANEL Plus 13 F HD LVDS RGB IIC V_LED F B SPI Data CLK 24C02 DVI_TMDS DVI IIC H P HP L R out Key IIC LED RED DVI D 24C02 HDMI_TMDS HDMI IIC HDMI Embedded LED Driver Block ...

Страница 10: ...t 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 3 MICOM Part Copyright Only for training and service purposes LGE Internal Use Only This part is include video controller part And this part con...

Страница 11: ... 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 over power protection is also monitor by this part 5 Photo Coupler isolation Thi...

Страница 12: ...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 13: ...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 14: ...training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved 1 2V YES NO CHECK CRYSTAL X100 JK100 1 IC102 3 IC102 1 IC104 42 43 IS ADAPTER VOLTAGE 19V IS IC102 PIN 3 5V IS IC 100 PIN1 3 3V PIN3 1 2V Check IC101 PIN 42 43 PULSE CHECK IC101 CHECK Adapter CHECK IC102 5V CHECK IC 100 PIN1 3 3 PIN PIN3 1 2V ...

Страница 15: ...T DISPLAYED YES 1 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved CHECK IC101PIN 42 43 PULSE CHECK IC101 PIN 35 36 PULSE 1 CHECK IC101 PIN 42 43 SOLDRING CONDITION 2 CHECK IC101 3 TROUBLE IN IC101 CHECK CONNECTION LINE FROM D SUB TO IC101 ...

Страница 16: ...ING 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 H sync PIN 14 V sync CHECK IC101 PIN 35 HSYNC PIN36 VSYNC ...

Страница 17: ...WIRING DIAGRAM 17 Copyright Only for training and service purposes LGE Internal Use Only 2010 LG Electronics Inc All right reserved EAD38438703 6631900011S EAD62186002 MAIN BOARD EAD62122555 ...

Страница 18: ...410 400 300 510 520 900 200 540 or ...

Страница 19: ...F C133 0 047uF D105 30V BAT54 R150 1K 1 16W 5 Q106 AOD478 S D G R170 4 7K IC101 W25X40CLSNIG 3 WP 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD 8 VCC JP106 JP105 19V_LED JK100 DS 262HB 1 VIN 2 SW 3 FIX 4 SHIELD_1 IC103 APE8839AMP C 3 VOUT2 2 VIN1 4 VIN2 1 VOUT1 5 EN2 6 GND_2 7 GND_1 8 EN1 9 EP GND C112 4 7uF 10V 1 2VS 3 3VS 5VS C113 4 7uF 10V C102 10uF 10V READY C101 10uF 10V C100 10uF 10V VA100 ADUC ...

Страница 20: ... 20S 02 010L 20V VA206 ADUC 20S 02 010L 20V VA207 ADUC 20S 02 010L 20V D202 30V BAT54 HDMI model only R208 10K READY R207 10K READY R213 4 7K HDMI model only R214 4 7K HDMI model only R216 4 7K HDMI model only JP202 R226 10 DVI_5V DVI_SDA DVI1 DVI_DET R224 10 R235 10K 1 16W 5 JP207 DVI0 R234 4 7K C208 0 1uF 16V JK201 PEJ024 06 HDMI model only R_SPRING E_SPRING T_SPRING SHIELD_PLATE IC201 M24C02 RM...

Страница 21: ...NOVEMBER 2012 P NO Printed in China MFL67715402 ...

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