DOWNLOAD LG 37LB1R (CHASSIS:ML-051B) Service Manual ↓ Size: 4.28 MB | Pages: 37 in PDF or view online for FREE

Model
37LB1R (CHASSIS:ML-051B)
Pages
37
Size
4.28 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lb1r-chassis-ml-051b.pdf
Date
PREV: LG 37LB1R (CHASSIS:LP62C) Service Manual

LG 37LB1R (CHASSIS:ML-051B) Service Manual ▷ View online

- 17 -
NO VIDEO
REPLACE LCD MODULE
CHECK THE PERIPHERAL
IC800
CHECK LVDS Output
P3(PIN 21, PIN 22)
No
CHECK THE PERIPHERAL
IC1
DOWN LOAD ISP DATA
or REPLACE MAIN BOARD
Check L2
(12V)
No
Yes
CHECK L1022
(24V)
CHECK R898
(3.3V)
No
Yes
Yes
Yes
No
- 18 -
NO SOUND
REPLACE JACK BOARD
INSERT CABLES WELL
IS THE SPK CABLE 
CONNECTED WELL?
No
CHECK IC302 OR CHANGE
DOES IC302 OPERATE?
No
Yes
CHECK IC301 OR CHANGE
DOES IC301 OPERATE?
No
Yes
CHECK X300 OR CHANGE
DOES IC300 OPERATE?
DOES IC400 OPERATE?
No
Yes
Yes
Yes
CHECK X400 OR CHANGE
No
BLOCK DIAGRAM
- 19 -
      
      
  
   
   
   
 
   
 
 
 
- 20 -
6631T1
1020Z-30P
6631900083B-15P(32LB1R)
6631900083A-15P(37LB1R)
6631T25026C-4P(Only 32LB1R)
6631T25024Z-3P
6631900048A-4P(32LB1R)
6631T20033J-4P(37LB1R)
6631T20010C-10P(32LB1R)
6631T20037X-10P(37LB1R)
6631T25026B-3P(Only 32LB1R)
6631T20032H-12P(32LB1R)
6631T20032G-12P(37LB1R)
WIRING DIAGRAM
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