Sony KDL-40NX720 / KDL-46NX720 / KDL-55NX720 / KDL-60NX720 (serv.man5) Service Manual ▷ View online
KDL-40/46/55/60NX720(K)
105
TROUBLE SHOOTING
8) 10 times blinking (Emitter Error)
10 times blinking
Check
the harness between
the T-con Board and
the HEM2 Board
Harness
NG
OK
Change HEM2 Board
HEM2 Board
OK
T-CON Board
NG
KDL-40/46/55/60NX720(K)
106
3-5. NO PICTURE
No Picture
Press HOME Key
OSD displayed?
Replace the B-T-con,
T-con-LD* FFC
G* Board
Check the G*-LD* Harness
No
Change B* Board
Change G* Board
B* Board
Harness
B-T-con,
T-con-LD* FFC
B* Board
LCD Panel
(T-con, LD*)
Yes
OK
NG
NG
OK
NG
OK
NG
OK
TROUBLE SHOOTING
KDL-40/46/55/60NX720(K)
107
TROUBLE SHOOTING
3-6. NO SOUND
No Sound
Check the Speaker
Harness
Speaker Harness
Replace
the B* Board
B* Board
Speaker
OK
NG
NG
OK
Check the
“Speakers setting”
Change to
“TV Speaker”
“Audio System”
“TV Speakers”
KDL-40/46/55/60NX720(K)
108
3-7. TV COMMANDER BUTTONS MALFUNCTION
TROUBLE SHOOTING
1) TV button malfunction
Button malfunction
on the TV
Replace the Harness
between B* to
Switch Unit
Switch Unit
Harness
Switch Unit change
B* Board
OK
NG
OK
NG
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