Re: Trying to save a 576

Eric
 

On Sat, Dec 7, 2019 at 12:37 PM, Ed Breya wrote:


One more thing - it's possible that the intensity and focus pot string
resistors have drifted way out of spec. Depending on the circuit and drift
direction, you may not have enough range for intensity setting all the way up.
You'd have to study the circuit and make some measurements (they're elevated
to near cathode voltage).

Ed
CRT voltages tested at the neck pins.

1) -3815 Vdc
2) -3841 Vdc
3) -3840 Vdc
4) -2667 Vdc
5) NC
6) NC
7) 100 Vdc
8) 100 Vdc
9) 100 Vdc
10) 109 Vdc
11) 52 Vdc
12) NC
13) -3814 Vdc
14) - 3814 Vdc


Heater voltage ping 1-14) 5.9Vac

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