Sony XR-55A75L Service Manual page 112

TROUBLESHOOTING
FOR DIGITAL TUNING 1 For TW, NA-ATSC(MX/UC)
4.4 No Picture at Tuner -
For LA (Dual ANT)
Confirm ANT or
Cable connection
NG
OK
A
Digital Tuning 1
For TW,NA-ATSC(MX/UC)
CH/HK, PA
Sound is normal?
OK
No sound
Check part mounting condition
for digital data line
"IF_N, IF_P, TAGC"
NG,
(TW, NA-ATSC(MX/UC)*1,
CH/HK, LA, PA)
Change NG parts
OK
, CH/HK, LA, PA
*1
Confirm ANT or
Satellite connection
NG
OK
*1 ,
A
Replace B-board
Replace tuner module
OK
OK
End
Notes:
- Parts for IF_N line : C3011
- Parts for IF_P line : C3010
- Parts for TAGC line: R3024, C3023, R3003,
-Parts for I line:C3009
-Part for Q line:C3012
-Parts for SAGC line:C3024, C3025
: Insert correct signal in correct ANT/CABLE/
A
Satellite terminal.
*1:except US ATSC3.0, Please refer Digital Tuning 2
NG
112
SYS SET