[timmy]

Originally Posted by Username1

Hi

I believe measuring resistance from one side of the IF Coupling Transformers, or IF Coils
is not necessary, and you can achieve better results measuring voltages, like for example
Pin 7 of V1, and and Pin 2 of V2. If the Primary, & Secondary had some short, or leakage
it would show itself with 200V on one side, if the insulation were to break down at the
200V operating voltage it would show on grid of V2, and be more telling.

I'm wondering what the voltage on pin 8 of V2 is...? They are almost the same circuit,
and with almost the same voltages on all the same tube pins......
Same resistor voltage dividers too......

I'm also wondering if these voltages are a result of no signal from the tuner....

Have you tried hooking up your tuner subber to this tv & putting a signal on it
and leaving the tuner power plug hooked up to the tuner, but just removing the RCA
plug to the IF, & putting the Tuner Sub box in..... And then measure these voltages...?

.

V2 is not the same with the voltage divider the 8.2k on v1 goes to ground but the 8.2k on v2 does not go to ground that’s the difference the ohms check perfect on v2 but v1 the only pin that was wrong was pin 8 and I have tried with the tuner plugged in and out with the subber and the voltage only went up like 4 volts. It’s something on the ground pulling the voltage down take the 8.2 off ground and voltage is good and also the x2 diode getting really hot not right. Iirc pin 8 was little higher then what sams says. Again pin 8 v2 don’t go to ground like v1 does.