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TA 1600 - SHORT CIRCUIT PROTECTION
The TA1600 amplifier circuit has no need for sonically degrading voltage and current limiting circuits. To protect the amplifi-
er from problems which may occur in the speaker line there is an overload detection circuit.
In the event of a short in the speaker load or cables, the speaker detection circuit will shut down that channel and light
the red front panel indicator. If this happens, correct the fault and turn the amplifier off, then back on. This will reset
the amplifier.
WARM UP
In order to achieve the best sonic performance from the amplifier, we recommend letting it warm up for 1 hour before begin-
ning any critical listening. The amplifier may not deliver its full potential sound quality before this time has passed. Many users
leave Hafler amplifiers on indefinitely to ensure the best operation without delay.
CLEANING AND MAINTENANCE
There is no requirement for regular maintenance on the electronic components of the amplifier. If the case becomes soiled it
can be cleaned using a soft cloth and a mild detergent, such as spray window or glass cleaner. If the amplifier is located in a
particularly dusty environment cleaning the inside with compressed air or vacuuming every 18 to 24 months is sufficient.
Troubleshooting
No Sound
Adjust the system headroom. First, turn the
source unit level control up to
3
/
4
maximum. Next, turn the amplifier level
controls down until the clip LED activates
occasional, only during peak audio events.
SYMPTOM DIAGNOSIS REMEDY
No Power
Check the line fuse on the back panel, line
cord connections, power strip switch, wall
receptacle switch, and breaker.
Check connections, substitute with known
working source and cables and repair or
replace as
necessary.
Disconnect existing speakers and wires and
replace with known working speakers and
wires. If amplifier works, check and repair
wiring and speakers as needed.
Line voltage not present
RCA or
1
/
4
” input from
source unit is not connected
or not functioning properly
Speaker leads are shorted, or
speakers are blown
Too much system Gain
Protection circuit has
activated
Reset the amplifier by turning the power
off, then back on again. If protection
activates again, check for shorted speaker
wires or blown speakers.
No Sound - Red LED on
TA1600
Hum in Speakers or
Headphones
Ground Loop
(Balanced Input Only)
Try disconnecting the ground wire on both
1
/
4
”balanced cables
5