LG KG270 Service Manual - Page 71
Check L100/L101
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4. TROUBLE SHOOTING Checking Flow Press any Key Check L100/L101 C102/103 Check component status NG Re-solder or replace the Component YES L100&L101 bias will Fluctiate signal above 1.2V Check L100 & L101 OK Check Receiver Re-solder or NG replace the Component NG replace Receiver OK Replace PCB - 72 -
4. TROUBLE SHOOTING
- 72 -
Check L100 &
L101
Check component
status
Re-solder or
replace the Component
Check Receiver
replace Receiver
YES
NG
OK
OK
NG
NG
Replace PCB
L100&L101 bias will
Fluctiate signal above
1.2V
Press any Key
Check L100/L101
C102/103
Re-solder or
replace the Component
Checking Flow