Sony KD-55X7 E Series - FOR DIGITAL TUNING 1:Only for am

Sound is normal?
OK
No sound
Check part mounting condition for digital data line
“IFOUTN1, IFOUTP1, IFAGC1”
NG
If UEC > 0
If UEC = 0
Confirm UEC of digital RF by Service mode
3.5.3 FOR DIGITAL TUNING 1:Only for AM
ATSC(MX/UC) ,TW-DVB , AEP(STD) ,LA-ISDB, PH- ISDB
Digital Tuning 1
OK
Done (End)
Please re-upgrade Firmware
(PKG),
Check again Picture quality?
OK
NG
Channel can be lock?
Check part mounting condition for
digital control line
“M_SCL,M_SDA”
NG
OK
NG
OK
Change B-board
Problem solved?
OK
NG
Change Tuner Module
(Please refer page Assemble and Dissemble Tuner Module)
Change B-board
Notes:
- Parts for IFOUTN1 line:
FB1000,C1005,C1012
- Parts for IFOUTP1 line: R1030,
FB1001,C1006,C1013
- Parts for IFAGC1 line: C1014, R1010
-Parts for M_SCL line: C1004,R1049
-Parts for STB_SCL line: R1044
- Parts for M_SDA line: C1003,R1048
-Parts for STB_SDA line: R1045
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