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Chapter 2: Troubleshooting 25
Amplifi er Application Guide
Figure 2.3
No Sound
2.2 No Sound
No Sound
Are the level
controls
turned up?
Are signal
indicators
blinking?
Check signal source
for adequate output.
Turn up level controls
until you hear output.
No
No
Yes
Does amp have
Fault, TLC or
ODEP
indicators?
Fault or TLC
ODEP
Is indicator
on?
Is indicator
off?
Neither Fault,
TLC or ODEP
Refer amp to
service center.
Are speakers
connected?
Is there a
short-circuit on
the speaker
line?
Amp overheated or in
other standby condition.
See "Amp Overheating"
flowchart and/or refer to
Operation Manual.
No
Yes
Remove the
short-circuit.
Connect Speakers
to Amp.
No
No
Yes
Yes
Yes
Yes
No
Are speakers'
protection
systems tripped,
or speakers
damaged?
Repair or reset
speaker.
Yes
No
Is Power or
Enable
indicator on?
Check AC Power to
amp. See "No Power"
flowchart.
Yes
No
Does amp have
IQ PIP model
installed?
Check settings on
IQ PIP module.
Yes
No