Sony GN1G - Page 52

52
KDL-50W800C, 805C, 807C, 809C/KDL-55W800C, 805C
TROUBLE SHOOTING
3-4-1. NO SOUND: Audio
#1
Check the HP out
(use Video input)
NG
OK
Check the
Digital out
(use Video input)
IC1000 is NG
No signal
#1
OK
Check the IC7701
VDD 3.3V
(IC7701 pin9)
IC7701 NG
Check the
IC7701 VSS -3.3V
(IC7701 pin6)
NG
OK
Check the
X_AUDIO_MUTE_
SPHP
pin5 is HIGH?
IC7701 NG
Check the
CN7730 pin1
(SPDIF input)
No signal
OK
CN7730 is NG
Power Amp Block (F7751, IC7751, etc) is NG.
See 3-3-3. Main Board Power Off Checking
(for Main SP Lch & Rch) for BMX board only
and 3-3-4. Main Board Power On Checking
(for Main SP Lch & Rch) for BMX board only
OK
No Problem
NG
Check the solder
of IC7701 CP & CN
(7&8pin) & C7702
C7702 solder mount NG
NG
OK
NG
OK
IC7701 NG
Check the
INR+ & INL+ pin1 &14.
(at R7707and R7708)
Signal is coming?
OK
IC1000 is NG
No signal
NO
This is MUTE situation.
Check IC1000
OK
Check the
Speaker Sound
(use Video input)
NG
OK
(Only for XM-DT)
Check the
DAD Speaker Sound
(not applicable for this model)
Power Amp Block (F4500, F4501, IC4505,etc) is NG.
See 3-3-5. KK board Power Off Checking
(for Dual Acoustic Duct Subwoofer Lch & Rch)
for KK board (XM-DT) only
And 3-3-6. KK board Power ON Checking
(for Dual Acoustic Duct Subwoofer Lch & Rch)
for KK board (XM-DT) only
Size B* Board G* Board H* Board
50” BMX Not applicable
HSC3
55” BMX Not applicable
HSC3