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5
No Sound
This is just for general reference and does not including every single case.
No Sound
Phones
When connected phones,
does the relay change to phones?
(CPU Assy IC203 pin 24 0 → 3.3 V)
Yes
Is the voltage 0 to 12 V?
(MAIN Assy R32)
Yes
Does the sound of speaker
front ch output?
Yes
Does HP OUTPUT signal
output?
(CPU Assy CN206 pin 1 or 3)
Yes
Replace HP Assy.
Speaker front ch sound
Set "STEREO" mode with STANDARD
SURROUND key and speaker ON/OFF
with SPEAKERS key.
Is pin 18 voltage changing
from 3.3 V to 2.23 V?
(FRONT Assy CP704A pin 18)
Yes
Is the voltage 0 to 3.2 V?
(CPU Assy CN208 pin 6)
Yes
Is the voltage 0 to 12 V?
(MAIN Assy R20)
Yes
Analog in (e.g. CD)
Pure Direct →
Speaker out sound
Yes
A
B
5
6
When connected phones,
No
is CN206 pin 4 (HP_DET)
low?
Yes
Check connectors between FRONT
Assy CN106 and HP Assy CP104.
No
Replacce Q12, Q5 on MAIN Assy
or replace MAIN Assy.
No
No
Check connecters between CPU Assy
CN206 and FRONT Assy CN106.
Is the voltage changing
No
3.3 V to 2.23 V?
(CPU Assy CN704B pin 18)
No
Replace CPU Assy.
No
Replacce Q2, Q9 on MAIN Assy
or replace MAIN Assy.
No
Are the signal on AMP5
Assy CP401 pin 1, 9?
Yes
Check and repair FL or FR AMP
circuit or replace AMP5 Assy.
VSX-530-K
6
7
No
Replace HP Assy.
No Problem / No Damage
Replace HP Assy.
No Problem / No Damage
Replace CPU Assy.
Relay Control Check flow
No
Check IC203 on CPU Assy
or replace CPU Assy.
Change analog input signal to
another analog input (e.g VIDEO)
No
and select it.
Are the signal on AMP5 Assy
CP401 pin 1, 9?
Yes
Check the problem analog signal
line between input connector and
IC1009 (Input selector IC)
or replace MAIN Assy.
7
8
No
C
11
8
A
B
C
D
E
F