Chassis: RB2G, HE-L
Chassis: RB2G, HE-L
52
2.3-2 - NO SOUND: AUDIO (FOR ALL MODELS) TUS AND BAX (HT-L, HT-H, HT-H65, HS)
RB2G
CHASSIS
W700B/ W800B
Troubleshooting
2-3 No Sound
2-3-2. Audio (For all models) TUS, TUW and BAX (HT-L, HT-H, HT-H65, HS)
2-3. No Sound
#1
No signal
#1
Ch k th
No signal
Check the solder
Check the
Digital out
(use Video input)
IC9000 is NG
Check the
IC4204 VSS -3.3V
(IC4204 pin6)
Check the
CN3103 pin1
(SPDIF input)
OK
OK
Check the solder
of IC4204 CP & CN
(7&8pin) & C4244
NG
OK
NG
OK
NG
IC4204 NG
CN3103 is NG
Check the
Speaker Sound
(use Video input)
Power Amp Block
(F4401,IC4901,F4402,IC4902 etc)
OK
Solder NG
Check the HP out
NG
OK
OK
Check the
X_AUDIO_MUTE_
SPHPLO
pin5 is HIGH?
(
p )
is NG. See item: LED blinking 3x
(Audio error)
NO
This is MUTE situation.
Check IC9000
Check the HP out
(use Video input)
OK
No Problem
NG
Check the
INR+ & INL+ pin1 &14.
(at JL4218 and JL4217)
IC9001 is NG
No signal
OK
Check the IC4204
VDD 3.3V
(IC4204 pin9)
DC/DC converter is NG
See No POWER DC / DC
Converter Check
NG
(at JL4218 and JL4217)
Signal is coming?
OK
Note:
(AYU2/
Ayu2L
) –
OK
IC4204 NG
IC9000
(Brownie)- IC9001