Sony KD-49X9 F Series Service Manual page 57

4.4 NO PICTURE: @ TUNER
FOR DIGITAL TUNING 2: @ AEP, JP, PA_T2, CH/HK, and LA-T2(COL)
LA-T2(COL)
Confirm ANT or Cable connection
OK
Digital cable/ Terrestrial
Cable
Refer to Digital Tuning 1
Check part mounting condition for digital data line
Notes: I2C
I2C line for all tuners except Japan
- Parts for I2C SDA line: R2800, C2803.
- Parts for I2C SCL line : R2801, C2804.
I2C line for Japan
- Parts for I2C SDA line: R2804
- Parts for I2C SCL line : R2805
Digital Tuning 2
For PA_T2 and
CH/HK
NG
A
Terrestrial
Sound is normal?
No sound
Can it preset broadcast?
OK
"TU1_TS_DATA0, TU1_TS_CLK,
TU1_TS_VALID, TU1_TS_SYNC"
(Refer Notes)
NG
Change NG parts
For AEP/JP
Confirm ANT or Satellite connection
OK
OK
Check IC1000 (SoC)
NG
Check part mounting condition
for I2C SDA & SCL line. (Refer Note I2C)
Change Tuner module
OK
Check IC1000 (SoC) &
Confirm an insertion state of the
connector
NG
A
NG
Change NG parts connected to I2C bus
OK
Notes: TS line
-TS line parts for LA-T2/PA-T2/CH/HK :
R2868/R2869/R2870/R2871/RB2802
- TS line parts for AEP/JP :
R2814/R2815/R2816/R2817/RB2802
A
: Insert correct signal in correct terminal.
57