Care; Troubleshooting - Hafler JF2000 Owner's Manual

Power Status
LEDs

CARE

TROUBLESHOOTING

LED Displays for
Troubleshooting
Power Status LED
(Rightmost LED)
The Power Status LED can show three indications:
OFF: The power switch is off, the amplifier is not plugged in,
or the main fuse is blown.
GREEN: Indicates normal power and operation.
RED: Indicates amplifier overheat. Leave the switch on and
the fan will cool the amplifier down to operating temperature
very quickly.
Do not allow speaker wires to touch each other, chassis
ground, or any metal object.
Protect your amplifier from moisture and dust.
Clean anodized finishes with soft, damp cloth.
Save the original carton and packing. It is the only safe way
to ship the amplifier. If you need to replace the carton and/or
packing, consult your authorized dealer or Hafler Customer
Service Department.
No user serviceable parts inside. Do not disassemble ampli-
fier for any reason. Refer to an authorized Hafler warranty
station or to Hafler directly. See Warranty Statement.
The LED displays show a lot of information about how the
amplifier is acting. They can provide direction and trouble-
shooting information for most system problems if they are
interpreted properly.
The Power LED can show three indications:
OFF: No power is reaching the main amplifier board low-
voltage section.
GREEN: Normal low-voltage power is available.
RED: Amplifier has shut down due to overheating (fan will
still run to cool the amplifier).
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