LOW IMP when trying to select A and B speakers together

First clear that error from service mode. Press additional function
press 2 and 8 together
press additional function agian
service mode should appear in screen
select copier
select function
select "clear"
select "err"
select ok.
unplug power cord for a few seconds and restart the machine
try to make some copies if problem persist replace the fixing heater assembly

The Low Impedance setting is for when you have even one speaker with <8-ohms nominal impedance so you can use bot speaker pairs together. You still need to have an effective total (parallel) impedance of 4-ohms minimum or there may be problems like blowing up the amps.

Press and hold the SPEAKERS A or B button until LOW IMP lights or goes out, as required.

Press either button to toggle that speaker pair on or off.

It's in the manual page 14, 22 and 25.

sounds like and impedance issue . is it set up within the amps ohm parameters ?

Low Impedance is not a suggestion, it is a WARNING. Your receiver is telling you it senses TOO LOW a load and it's trying to protect itself from damage.

Speakers A& B are running in parallel, so their combined impedance, X, is found by using the formula: 1/X = 1/A + 1/B.

In other words, two 8-ohm speakers in parallel would yield a 4-ohm load.

If your speakers are identical, try running them in series on one speaker output pair. That would keep the impedance safely high.

press F8 when booting windows
then choose disable automatic restart on system failure
now it will appera a bllue screen with given windows error

The most likely cause of this is some DC current working its way through the system. WIthout taking some measurements, it will be difficult to confirm this though. This should not be an expensive repair. Figure on $20 or so for parts (capacitors mostly).

Dan

I fixed it with an adaptor. Thank you.

This is similar to protect mode in that the amp has detected a short in the output and has shutdown to prevent damage. Without seeing the unit, I'm a bit hesatant to suggest repair tips. At this point, I would suggest you get a detailed estimate from a local shop. We should be able to guide you through the actual repair once the results are posted here.

Dan

If you have bare wire going into the receiver's output terminals, make sure a strand or two of wire is not touching the other terminal. That can short out the outputs, especially when you turn up the volume, which increases the voltage present at those terminals. That would cause the receiver to shut down as a saftey precaution.

hi try these
There have been 3 versions of Demo Mode used on these appliances.

Version 1(Production to- Date code 39 March 2005)

To Activate
1. From the Default screen of a programme, after switching the appliance on press both Start/Cancel and On/Off buttons together until d On appears in display.
2. Press the Start/Cancel button only and tESt appears in the screen (Temp & Spin symbols also appear)

To Deactivate

Press the Start/Cancel button until all the console LED's illuminate.
Press both Start/Cancel and On/Off buttons together until
d OFF appears.
The default screen returns and you can select a new programme.
Note:- The default screen information displayed on these models is that of the programme currently selected by the selector knob.

Version 2 ( during Date Code 39 March 2005- to Date Code 42 June 2005)

To Activate

1. Same method as version 1.

To Deactivate

1. Simply press the Cancel button and the appliance returns to default.

Version 3 (During Date Code 43 June 2005 - to date )

To Activate

1. Press On/Off and Start/Cancel together with the top left option button until d On appears.

To Deactivate

1. Press On/Off and Start/Cancel toghether with top left option button until d OF appears.