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FRONT PANEL CONTROLS AND INDICATORS

Power

Protect

Hi Temp

2

3

1

4

5

Power Button

Press the Power button once to turn the Model 5125 on, press it again to turn it off. The Power 
button is inoperative when the Auto Turn On switch is set to Audio or 12V.

Protect Indicator

The Protect indicator will illuminate red if the Model 5125 experiences an external fault condi-
tion and the unit will stop playing. This prevents possible damage to the unit from continued 
operation. Examples of external fault conditions are short circuited speaker wires, excessive 
heat, and trying to drive too many speakers at high levels.
If Protect is illuminated you need to locate and correct the fault; for example, remove the short 
circuit, let the unit cool down, check the load impedance and lower the volume level. To reset 
the protection circuit you need to turn the unit off. 
Turning it off:

  Auto Turn On switch (on the rear panel) in the Man position: press the Power button on the 

front panel.

  Auto Turn On switch in the 12V position: turn off the 12V trigger source; the 5125 will turn 

itself off right away. You can also turn it off by unplugging its AC power cord. 

  Auto Turn On switch in the Audio position: turn off the preamplifier, surround controller or sys-

tem controller that drives your 5125. You can also unplug the 5125’s AC power cord.

Note: 

It requires approximately 15 minutes after removing the audio source before the 5125 

turns itself off. If you don’t want to wait and you have access to its AC cord, simply unplug it. 
Leave it off and/or unplugged for awhile to cool down and you’re confident the fault is correct-
ed. If you unplugged its AC power cord to turn it off, plug it in again.

Hi-Temp Indicator

Hi-Temp will illuminate red when the Model 5125 exceeds its maximum safe operating tem-
perature. If the heat persists, the unit will activate its protection circuit and stop playing. It will 
remain in this protection mode until the temperature drops and the unit is turned off to reset 
its protection circuit. Use the same turn-off procedure as above. If Hi-Temp appears, it’s likely 
the unit is been over-driven at too high a listening level or is attempting to drive a speaker load 
impedance that is too low. It’s probable the unit has not been provided with sufficient ventila-
tion. These conditions must be corrected before turning it on again to resume operation.

Channel   1   2   3   4   5   Status Indicators

1  2  3  4  5  will illuminate green when the Model 5125 power is on and it is operating nor-
mally. 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 gen-
eral fault or if the temperature is too high.

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Summary of Contents for 5125

Page 1: ...Model 5125 Five Channel Amplifier Power Protect Hi Temp 2 3 1 4 5 Model 5125 Five Channel Amplifier OWNER S GUIDE...

Page 2: ...will only fit into a grounding power outlet If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the ground...

Page 3: ...2 AC Voltage 3 Ventilation Requirements 3 Rack Mounting 3 Rear Panel Connections and Controls 4 Front Panel Controls and Indicators 8 Typical Problems and Remedies 9 If You Require Assistance 10 Warr...

Page 4: ...al thoroughly before you begin installation Unpacking Carefully unpack your Model 5125 and these accessories Detachable AC power cord Trigger wire with a 2 5 mm sub mini plug at each end Trigger wire...

Page 5: ...ir won t often circulate adequately in a cabinet or enclosure whose front and back sides are open pockets of intense heat can still develop around any heat producing equipment Therefore a ventilation...

Page 6: ...sense Even if you always listen in a surround mode the center and surround channel sound levels aren t high enough on a consistent basis for the auto turn on audio sensing 5 1 Channel Connections We r...

Page 7: ...Left surround back channel Left back speaker Channel 5 LS or Left Surround channel Left surround speaker Note If you elect this connection arrangement you will probably need to use the Auto Turn On 12...

Page 8: ...Input jacks for Channels 1 and 2 After the audio sig nals cease the Model 5125 remains on for about ten minutes This prevents unintended turn off during pauses in your music or movies The Audio posit...

Page 9: ...the Model 5125 Note Plugging in the 5125 s AC cord for the first time will usually create an internal power surge that false triggers its Audio auto turn on even if there s no audio signal at its inpu...

Page 10: ...ur 5125 You can also unplug the 5125 s AC power cord Note It requires approximately 15 minutes after removing the audio source before the 5125 turns itself off If you don t want to wait and you have a...

Page 11: ...to 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 a...

Page 12: ...Dealer or Parasound Authorized Reseller Units Will Be Refused by Parasound Under the Following Conditions 1 Unit was sent without the Parasound assigned RA number marked on the carton 2 Unit was sent...

Page 13: ...io 1 2 mV 12 V adjustable 15 minute turn off delay AC Power Requirement 110 120 V 220 240 V 50 60 Hz 3 watts standby 1600 watts full output Dimensions 171 4 Wide 181 2 Deep with connectors 6 High with...

Page 14: ...Notes CONNECTION AND SETUP NOTES 12...

Page 15: ...Notes CONNECTION AND SETUP NOTES 13...

Page 16: ...why Parasound has been a quality and value favorite of magazine reviewers sound professionals and listeners like you since we were founded in 1981 rev 0 91 2005 Parasound Products Inc Parasound Produ...

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