Sony GN1G - Page 46

2) 3 times blinking (DC Alert & Communication Error)
46
TROUBLE SHOOTING
KDL-50W800C, 805C, 807C, 809C/KDL-55W800C, 805C
3-time blinking
Check +5.0V_MAIN
at L9015, 4.959V
<Voltage<5.285V?
F9013, IC9021,
etc (B* Board)
DC_ALERT
NG
OK
Speaker
Check
Speaker Impedance
at SP Connector,
8Ω±1.2Ω ?
Check Audio
+19.5V
at pin 16/18 of CN9000
on the B* Board
LD* Board
Check
+19.5V
at Power Amp side
of F7751 on
the B* Board
F7751, IC7751,
etc (B* Board)
IC7751, etc
(B* Board)
AUDIO
NG
OK
NG
NG
OK
OK
Check
+19.5V
at Power Amp side
of IC7751 on
the B* Board
NG
F4500, F4501, IC4505, etc
(KK* Board)
Check
+19.5V
at Power Amp side of
F4500,F4501,IC4505
on the KK* Board
NG
OK
IC4505,etc
(KK* Board)
OK
Size B* Board G* Board H* Board
50” BMX Not applicable
HSC3
55” BMX Not applicable
HSC3