Sony KD-55A8F Service Manual page 48

4.4 NO PICTURE: @ TUNER
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Digital
Satellite
Terrestrial/Cable
Analog
NG
Check Tuner power line
12V at JL2822 = 12V?
OK
For TW, NA-ATSC(MX/UC),
For AEP, JP, PA_T2, CH/HK,
and LA-ISDB-T
and LA-T2(COL)
Refer Analog Tuning Refer Digital Tuning 1 Refer Digital Tuning 2 12V LNB Voltage
Checking
48
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