Hi Gentlemen,

I got the b&k 2209 , started the calibration and adjustment procedure
I checked the power supply. The voltage in the center transformer
is w/in spec as shown on my schematic attachment.

-8.5 Vdc measured vs -9.5V schematic.
4.12 Vdc measured vs 5V schematic.
-3.6 Vdc measured vs. -2.9V schematic.


Any Ideas, suggestions?

Cheers,

sofyan

 

Use another Dvm that works,....

 

Use another Dvm that works,....

Is there a better idea !!

 

Is there a better idea !!

With all the readings being wrong, it does sound like your meter (DVM) may not be accurate.
Do a quick test. Measure a fresh 1.5 volt alkaline battery. It should read a little over 1.5 volts. If it does not then the meter is faulty.

edit: Clarified which meter.

 

With all the readings being wrong, it does sound like your meter may not be accurate.
Do a quick test. Measure a fresh 1.5 volt alkaline battery. It should read a little over 1.5 volts. If it does not then the meter is faulty.

Works well, I checked
I think the inverter is faulty.

 

Works well, I checked
I think the inverter is faulty.

OK.
Is the 2.9 volts you measured at the battery? If it is, I would try a new battery and see if that helps.

If it does not help then...

The voltage on the point labeled +200 volts measures only 117 volts. This is a bigger error than any of the other voltages. I am guessing that there is an overload in the +200 volt circuit.