Sony KD-49X7 D Series Service Manual page 108

4.4 NO PICTURE: TUNER
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Digital
Analog
Refer Analog Tuning
Terrestrial/Cable
For TW, NA-
ATSC(MX/UC),
JP_SKP(Opticast) and LA-
ISDB-T
Refer Digital Tuning 1
Satellite
N
Check Tuner power line
G
12V at JL2822 = 12V?
OK
For AEP_W, JP_SKP, PA_T2,
CH/HK, and LA-T2(COL)
Refer Digital Tuning 2
108
12V LNB Voltage
Checking
108