DOWNLOAD LG 32LG5300 Service Manual ↓ Size: 70.76 MB | Pages: 80 in PDF or view online for FREE

Model
32LG5300
Pages
80
Size
70.76 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lg5300.pdf
Date
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LG 32LG5300 Service Manual ▷ View online

7.No Display(SCART)        
Repeat A, B Process
Check the signal input/output of U81
Re-soldering or Change  the 
defect part(U81)  
Fail
Pass
Check input source cable or jack(JP436,466)
Pass
Check the signal(R,G,B/CVBS) 
input/output of U397
Re-soldering or Change  the 
defect part(U397)  
Fail
Pass
SCART CVBS Output
Check the signal input/output of U396
Re-soldering or Change  the 
defect part(U396)  
Fail
Pass
Check the signal (Scart cvbs output)
 of U81
Re-soldering or Change  the 
defect part(U81)  
Fail
Pass
Check input source cable or jack(JP436,466)
-Level0(TV mode) : 0V to +2V
-Level1A(16:9 mode) : +4.5V to +7V
-Level1B(4:3mode) : +9.5V to +12V
- CVBS mode : 0V to 0.4V
- RGB mode : 1V to 3V
- 25 -
8.No Display(Analog TV)
Repeat A, B Process
Check +5V of U933
Re-soldering or Change  the 
defect part(U931,U933)  
Fail
Pass
Pass
Check +3.3V of U934
Re-soldering or Change  the 
defect part(U934)  
Fail
Pass
Check +1.8V,+1.25V of U661
Re-soldering or Change  the 
defect part(U936,U938)  
Fail
Pass
Check +33V of U661
Re-soldering or Change  the 
defect part(U937)  
Fail
Pass
Check the signal(CVBS) of R665
Re-soldering or Change  the 
defect part(U661)  
Fail
Pass
Check input source cable or Tuner(U661)
Check the signal input/output
Of U81
Re-soldering or Change  the 
defect part(U81)  
Fail
Pass
- 26 -
9.No Display(DTT)              
Repeat A, B,C Process
Check +3.3V, +1.2V of U932,U935
Re-soldering or Change  the 
defect part(U932,U935)  
Fail
Pass
Check the system clock (4MHZ, Y716) and the Voltage of Mojo(U662)
Pass
 Check the signal(TS_data, clk, str)
of U612
Re-soldering or Change  the 
defect part(U661)  
Fail
Pass
Check the signal(data,clk,str,cavld)
 of U662
Re-soldering or Change  the 
defect part(U612)  
Fail
Pass
Check input source cable or Tuner(U661)
Check the signal input/output
Of U81
Re-soldering or Change  the 
defect part(U81)  
Fail
Pass
Check the signal(CVBS,R,G,B)
 of L821,L822,L823,L824
Re-soldering or Change  the 
defect part(U662)  
Fail
Pass
- 27 -
10.No Sound(Component)    
Check the signal(R,L)
  of U211
No Sound
Check the signal (R,L) of U81
Re-soldering or Change  the 
defect part(U81)  
Fail
Pass
Re-soldering or Change  the 
defect part(U211)  
Fail
Check input source cable or Jack(JP351)
Pass
Pass
Check the signal (R,L) of U516
Re-soldering or Change  the 
defect part(U516)  
Fail
Pass
Check the signal of Speaker
Check Speaker connector(JP516) 
or harness  
Fail
Pass
- 28 -
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