Sony XR-55X90K Service Manual page 79

TROUBLESHOOTING
4.4 No Picture at Tuner - FOR ANALOG TUNING
For LA only
Confirm ANT or Cable connection
NG
OK
A
Check part mounting condition
Analog Tuning
For Other destination
Enable to present
broadcast channels?
NG
for analog control line
"IF_N, IF_P, TAGC"
NG
Change NG parts
Notes:
- Parts for IF_N line : C3011
- Parts for IF_P line : C3010
- Parts for TAGC line: R3024, C3023, R3003,
A
OK
Replace main board
OK
Replace tuner module
OK
End
: Insert correct signal in correct ANT terminal.
NG
Replace main board
79
SYS SET