DOWNLOAD LG 50PG6300-ZA (CHASSIS:PD85A) Service Manual ↓ Size: 90.49 MB | Pages: 73 in PDF or view online for FREE

Model
50PG6300-ZA (CHASSIS:PD85A)
Pages
73
Size
90.49 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50pg6300-za-chassis-pd85a.pdf
Date
PREV: LG 50PG6010-ZE (CHASSIS:PD81A) Service Manual

LG 50PG6300-ZA (CHASSIS:PD85A) Service Manual ▷ View online

 
­29­
       
13. No Sound – AV1/2(SCART) Input                    
-  Check the condition of the SCART cable connection.                        
- 
Check the system clock (27MHZ,Y171) and the Voltage of VCTP_P(U81) 
No Sound
Repeat D Process
Pass
Check input source cable or jack(JP436,466)
Pass
Check the signal(R,L) input/output of 
U397
Re-soldering or Change  the 
defect part(U397)  
Fail
Pass
SCART OUTPUT
Pass
Check the signal(R,L) of U436,466
Re-soldering or Change  the 
defect part(U81)  
Fail
Pass
Check the signal(R,L) of 
L441,L442,L471,L472
Re-soldering or Change  the 
defect part(U436,466)  
Fail
Pass
Check input source cable or jack(JP436,466)
 
 
­30­
       
14. No Sound – HDMI 1/2/3 Input                    
- 
Check the condition of the HDMI cable connection.                        
- 
Check the system clock (27MHZ,Y171) and the Voltage of VCTP_P(U81) 
- 
Check the EDID data of EEPROM(U311,U326,U327) 
Check the signal
 input/output  of U281
No Sound
Repeat D Process
Pass
Re-soldering or Change  the 
defect part(U281)  
Fail
Check input source cable or 
jack(JP311,JP326,JP327)
Pass
Pass
 
 
­31­
       
15. No Sound – Analog TV Input                    
-  Check the condition of the RF cable connection.                        
- 
Check the system clock (27MHZ,Y171) and the Voltage of VCTP_P(U81) 
No Sound
Pass
Repeat C Process
Pass
Check the signal(SIF) of R669
Re-soldering or Change  the 
defect part(U661)  
Fail
Pass
Check input source cable or Tuner(U661)
Repeat D Process
Pass
 
 
­32­
       
16. No Sound – DTV Input                    
-  Check the condition of the RF cable connection.                        
- 
Check the system clock (27MHZ,Y171) and the Voltage of VCTP_P(U81) 
- 
Check the system clock (4MHZ, Y716) and the Voltage of Mojo(U662) 
No Sound
Check +3.3V, +1.2V of U932,U935
Re-soldering or Change  the 
defect part(U932,U935)  
Fail
Pass
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)
Repeat D Process
Pass
Check the signal
 of U916
Re-soldering or Change  the 
defect part(U662,U916)  
Fail
Pass
 
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