Channel 1 2 3 4 5 Status Indicators
1 2 3 4 5 will illuminate green when the Model 5250 power is on and it is operating normally.
The 1 indicator will not light if a fault is only in channel 1; the 2 indicator will not light if a fault is
only in channel 2, and so on. None of the five indicators will illuminate if there is a general fault or if
the temperature is too high.
PROBLEMS AND REMEDIES
Maintaining Your Model 5250
Your Parasound Model 5250 power amplifier requires no periodic maintenance and functions
at its best when providing you with many hours of enjoyment. It has no user-serviceable parts
inside. To avoid the risk of electric shock, do not remove its top cover. The exterior can be
cleaned with a soft cloth pre-moistened only with a few drops of water or glass cleaner.
No sound
•
Check that AC is live.
•
Check that input cables and speaker wires are secure at both ends.
•
Make sure the surround controller is switched to the correct input.
•
Is the unit on? Check the setting of the Auto Turn On switch.
•
Doesn’t turn on with the Auto Turn On - Audio. Try the 12V trigger instead.
•
If using Auto turn on - audio, connect channels 1 and 2 to the L and R controller outputs
•
If using Auto turn on - audio, increase the sensitivity of the audio trigger.
•
Is the Hi-Temp or Protect (or both) illuminated? Check for excessive temperature, short-circuited
speaker wires, low impedance speaker load, and inadequate ventilation to remove heat.
Background Hum
•
Move the Ground switch to Lift.
•
Move audio cables and AC cords away from each other.
•
Try different routes for the audio cables and AC cords.
•
Make sure insulating shoulder washers are used if unit is rack mounted.
•
Try reversing the direction of each other component’s AC plug, one by one.
Overheating
•
Remove any external sources of heat.
•
Increase ventilation around the Model 5250.
FRONT PANEL CONTROLS AND INDICATORS continued /
PROBLEMS AND REMEDIES
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