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DOWNLOAD LG 32LV3700-ZC / 32LV370S / 32LV375G-ZC / 32LV375S-ZC / 32LV375W-ZC (CHASSIS:LD12B) Service Manual ↓ Size: 12.16 MB | Pages: 74 in PDF or view online for FREE

Model
32LV3700-ZC 32LV370S 32LV375G-ZC 32LV375S-ZC 32LV375W-ZC (CHASSIS:LD12B)
Pages
74
Size
12.16 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lv3700-zc-32lv370s-32lv375g-zc-32lv375s-zc-32lv3.pdf
Date
PREV: LG 32LV3700-SA (CHASSIS:LJ12B) Service Manual

LG 32LV3700-ZC / 32LV370S / 32LV375G-ZC / 32LV375S-ZC / 32LV375W-ZC (CHASSIS:LD12B) Service Manual ▷ View online

Power checking method
1. Check the AC220V input in the power cord.
2. Check the connected part with input from the POWER BOARD and whether the fuse is connected.
3. Check the ST-BY DC 3.5V output voltage from the POWER BOARD.
①
②
Established 
date 
Electronics 6-3
Standard Repair Process Detail Technical Manual
Revised 
date 
2008. 2 . 1
LCD TV
Error 
symptom
Check power input voltage and ST-BY 3.5V
Content
B. Power error _No power
16/33 - 6/13
③
Checking method when power is ON
1. Check the ST-BY DC 3.5V output voltage from Soft Touch PCB Test Point T6
2. Check the operating condition of the power KEY on the Soft Touch PCB (Test Point P4, T5)
3. Check the AC-DET (AC) DC3.5V voltage on POWER BOARD.
4. Check the POWER ON High (About DC 1.8V or above) voltage with input from POWER BOARD.
Established 
date 
Electronics 6-3
Standard Repair Process Detail Technical Manual
Revised 
date 
2008. 2 . 1
LCD TV
Error 
symptom
Checking method when power is ON
Content
B. Power error _
No power 
17/33 - 6/13
①
②
③
④
Established 
date 
Electronics 6-3
Standard Repair Process Detail Technical Manual
Revised 
date 
2008. 2 . 1
LCD TV
Error 
symptom
POWER BOARD voltage measuring method
Content
B. Power error _
No power 
18/33 - 6/13
24V is provided from the Power Board and supplied to LED 
Driver PCB. Check the PIN contact condition and connection.
Check each voltage output (5V,12V,24V) in the Power Board.
Entry method
1. Press the IN-START button of the remote 
controller for adjustment
2. Check the entry into adjustment item 3
Established 
date 
Electronics 6-3
Standard Repair Process Detail Technical Manual
Revised 
date 
2008. 2 . 1
1/2  - 19/33 - 7/13
LCD TV
Error 
symptom
POWER OFF MODE checking method
Content
B. Power error _
Off when on, off whiling viewing
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