Pioneer SC-82 Service Manual page 29

5

No sound only in AutoSurr in analog input (Single channel - Check only the signal path of the relevant channel.
Plural channels - There may be troubles with power source, control signals: MUTE, DET and others.
Bad connection of cables and connectors should be also considered.)
The signals of the relevant channel (FL IN, FR IN) exist in
A-DAC BRIDGE ASSY.
Yes
The signals of the relevant channel (FL IN, FR IN) exist in
D-FILTER BRIDGE_S ASSY.
Yes
Check the path of the relevant signal in DIGITAL MAIN_L ASSY.

No sound from HEADPHONES (Single channel - Check only the signal path of the relevant channel. Plural channels -
There may be troubles with power source, control signals: MUTE, DET and others. Bad connection of cables and
connectors should be also considered.)
If it is impossible to change to HEADPHONE, check the path of XHPDET signal.
Sound comes from HEADPHONE
in Pure Direct by applying a signal
to analog input terminal.
Yes
In AutoSurr with removing
HEADPHONE, the signal of the
relevant channel does not exists in
A-DAC BRIDGE ASSY
Yes
The signal of the relevant channel
does not exist in
D-FILTER BRIDGE_S ASSY.
Yes
Check the path of the relevant
signal in DIGITAL MAIN_L ASSY.

No sound only from ZONE (Single channel - Check only the signal path of the relevant channel. Plural channels -
There may be troubles with power source, control signals: MUTE, DET and others.
Bad connection of cables and connectors should be also considered.)
No sound only in ZONE SW - Check the relevant path in AUDIO ASSY.
Sound comes from ZONE2 or ZONE3 OUT by applying the signal to
analog input terminal.
Yes
If music content is replayed with Front USB terminal, sound does
not from ZONE2.
Yes
The signal of the relevant channel does not exist in
A-DAC BRIDGE ASSY.
Yes
The signal of the relevant channel does not exist in
D-FILTER BRIDGE_S ASSY.
Yes
Check the path of the relevant signal in DIGITAL MAIN_L ASSY.
Yes
Check the path of the relevant signal in FRONT HDMI USB ASSY.
5
6
No
No
Check the path of the relevant
channel in AUDIO ASSY.
No
Check the path of the relevant
channel in FILTER_S ASSY.
SC-82
6
7
No
Check the path of the relevant channel
in AUDIO ASSY.
No
Check the path of the relevant channel
in FILTER_S ASSY.
No
Sound comes from
Preout in PureDirect.
Yes
No
HP signal exists in
INTERFACE_S ASSY.
Yes
No
HP signal exists in
V-REG_S ASSY.
Yes
Check the HP signal
path in MIC HP ASSY.
No
Check the path of the relevant channel
in AUDIO ASSY.
Check the path of the relevant channel
No
in AUDIO ASSY.
Check the path of the relevant channel
No
in FILTER_S ASSY.
7
8
Check the path of the relevant
channel in AUDIO ASSY.
Check the path of the relevant
channel in AUDIO ASSY.
Check the path of the relevant
channel in INTERFACE_S
ASSY.
29
8
A
B
C
D
E
F