[TenTec] Need 962 diagram

[Stuart Rohre]

John, how old is your 962?

You an easily check the bridge rectifiers with power off, and capacitor 
discharged through a resistor, individually.

With a VOM, or DVM on ohms X 100, you should have low reading one way 
with the plus and minus probe and high when you swap probes around, for 
each diode of four in the bridge.  You can easily trace the AC wires to 
the bridge,and the polarity of the other two terminals can be determined 
by following one wire to the plus side of the big electrolytic capacitors.

The electrolytics should each measure near a short with the plus VOM 
lead to plus of the cap, then rise to several thousand ohms on a good 
cap. However, this is only with the low voltage of the meter, and does 
not say the cap is good at 12 volts.  Do you have a scope to do more 
defined testing of the parts?

If you lose only one diode in a bridge you get some funny results at the 
caps.

Even before you get the diagram you can do these basic tests.

Good Luck,
73,
Stuart Rohre
K5KVH