Read LG 50PM4700-DA (CHASSIS:PB22A) Service Manual online
N
Y
Check USB block
N
Use USB Trouble shooting guide
Y
Check HDD
N
Replace HDD
Y
Check video/audio output
Follow procedure digital TV
video/audio trouble shooting
video/audio trouble shooting
Maybe BCM2112(IC100) USB block
has problems. Replace It.
15. Digital TV Recording Fail Trouble Shooting
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