Sony KD-55X8 G Series Service Manual page 85

4.4 No Picture Tuner
FOR DIGITAL TUNING 2: @ AEP_W, JP ISDB , PA_T2, CH/HK, and LA-T2(COL)
LA-T2(COL)
NG
Confirm ANT or Cable connection
OK
Check part mounting condition for digital data line
TU1_TS_VALID, TU1_TS_SYNC,"All Destinations including JP
Digital Tuning 2
For PA_T2, PA_ISDB and
CH/HK
A
Terrestrial
OK
Sound is normal?
No sound
Display the service mode screen
TS_LOCK ?
UEC ?
CASE A
"TU1_TS_DATA0, TU1_TS_CLK,
"TU1_SHV_TS_DATA1" Only for JP
(Refer Notes)
NG
Change NG parts
TV Business Division
For AEP-W/ JPISDB
Confirm ANT or Satellite connection
OK
Replace main board
CASE B
Change Tuner module
OK
Confirm an insertion state of the
connector
85
NG
A
Notes:
- Parts for TU1_TS_DATA0 line : R2879
- Parts for TU1_TS_CLK line
- Parts for TU1_TS_VALID line : R2880
- Parts for TU1_TS_SYNC line : R2881
-Parts for TU1_SHV_TS_DATA1: R2848 (For JP ISDB)
- CASE A : TS _LOCK = LOCK and UEC constant
- CASE B : TS _LOCK = UNLOCK or UEC is increasing
A : Insert correct signal in correct terminal.
OK
All
: R2882
destinations
Replace main board
85