Yamaha 001PO-03C0 Owner's Manual: Troubleshooting

Yamaha power amplifier owner's manual.
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Troubleshooting

Indicator(s)
Possible cause
CLIP indicator is
Output exceeds 100 W
lit.
(8Ω) or 200 W (4Ω).
PROTECT indi-
Speaker output connec-
cator is lit.
tor is shorted.
The power amp section's
heat sink temperature has
exceeded 95°C or the
power supply section's
heat sink temperature has
exceeded 85°C.
A DC offset voltage is
being output to the
speaker output connector.
Remedy
Lower the input level.
Check whether the speaker output con-
nector or speaker cable could be shorted,
and then power-cycle the IPA8200.
If the PROTECT indicator is still lit, con-
tact your Yamaha dealer.
Check whether there might be blockage
at the air intake or a ventilation problem
inside the rack, and verify that the load
impedance of the connected speakers is
not below the rated value (4Ω or 8Ω/
BRIDGE).
Then wait until the unit's temperature has
dropped, and power-cycle the unit.
If the PROTECT indicator is still lit, con-
tact your Yamaha dealer.
Consult your Yamaha dealer.
Protection circuit
Limiter circuit will operate
to protect the power amp
and power supply.
The protection circuit will
operate to project the
power amp and power
supply.
The protection circuit will
operate to protect the
power amp.
The protection circuit will
operate to protect the
speakers.
IPA8200 Owner's Manual
11

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