Sony KD-43X8301C Service Manual page 94

3-3-3. 3 Times Blinking (Tuner Error)
BMF* board
3-time blinking
Tuner Error ?
Check the voltage of Main Tuner I2C / JL6010, JL6011
Check the voltage of Sub Tuner I2C (EU,JP only) / JL6021,
JL6022
Check TU_3.3V / JL6005
Check TU_1.8V (except UC) / JL6006
Check TU_DEM_3.3V (except UC) / JL6019
Check TU_1.1V(JP/FB6800 tuner-side)
Check TU_12V(EU,JP only)/JL 6027
[Change Tuner Module](UC:TU6000,PAD/LA-ISDB/CH/HK:TU6001,EU:TU6003,JP:TU6802)
KD-43/49X8301C (FW-43/49X8370C), 8305C, 8307C, 8308C, 8309C
No
See other flows
Yes
NG
OK
NG
OK
NG
OK
[except JP:R6001,R6002,C6004,C6005,R1468,R1469]
[JP,EU:R6003,R6004,C6006,C6007,R1466,R1467]
[JP only:R6005,R6006]
[If these parts are OK, check Muffin]
[FB6001,C6002,C6003]
[FB6004,C6014,C6015]
[FB6006,C6020,C6021]
[FB6800,C6800]
[If these parts are OK, go to DDCON troubleshooting]
[go to "NO PICTURE@Tuner"]
TROUBLE SHOOTING
94