Sony KD-55X95 G Series Service Manual page 55

2019/01/15 23:07:08 (GMT+09:00)
4.4 No Picture: @ Tuner
RF input no picture / noisy picture
Check RF source cable
and antenna, OK?
Check Tuner power line:
3.3V at JL2800 = 3.3V?
1.8V at JL2801 = 1.8V? *1
RESET value at JL2807 = 3.3V? *1
All broadcasting channel
cannot be received?
Refer to next page
OK
OK
NG
Check part mounting condition
for I2C SDA & SCL line. (Refer Note I2C)
OK
NG
Change RF cable and
antenna
NG
Please refer DDCON
troubleshooting
OK
NG
Change NG parts
connected to I2C bus
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
It does not use 1.8V and RESET in the UC model
*1
55
SYS SET