Read Sony KD-55X9000C Service Manual online
TROUBLE SHOOTING
3-2-4. NO POWER: DDCONs check
3-2-3. NO POWER: DC_OFF_DET check
START
Check Vdd
Change Fuse
No
START
Check fuse
F9xxx
Check Vdd
C9118
Is voltage >5V?
Change IC9018
Yes
No
END
g
Is fuse OK?
Check Vcc voltage
C9xxx
Is voltage >12 0V?
Check POWER_ON P-on ucom #pin19
(Refer 1.2 No Power U-Com Failure)
No
Yes
Check Enable pin
voltage
Is voltage >2.5V?
1.2 No Power U-Com Failure
No
Is voltage >12.0V?
(Refer 1.2 No Power U Com Failure)
Yes
g
Yes
Change DDCON IC
126
Click on the first or last page to see other KD-55X9000C service manuals if exist.