[TinCanAlley]

Originally Posted by DaveWM

the best way is to simply pull the crt socket back just enough to expose the pins, then using the rat shack spring loaded prob you clip on to one pin at a time (neg to chassis) and get a reading. you want the socket to be on enough to still work the CRT. As far as what pin is what, you should look up the CRT (google) and it will be listed along with pin out. stay away from the focus pin it will be the one that has space between it and the other pins on both sides.

dont try and just use the prob directly to the expose pin, it can be done but you risk slipping and shorting out on pin to another. far better to get it all hooked up and make sure nothing is shorted then power up, get a reading, power down and move to the next pin.

oh one last thing, if you do this a lot you use a socket adapter that goes between the CRT pins and the socket, it has test point that are clearly labeled that make checking pin voltage easy.

Well I used the hook probe and got all the voltages. The only ones I know for sure are the G2 leads. I'm assuming the G1s are the yellow wires since their voltages are around 140V which I believe is the cutoff voltage? I was unable to find anything on the internet searching for my CRT model and pinout.

I'll put the values in the SM first and then actual.

SM Values Actual Values

2 = 143 153
6 = 142 144
11 = 142 147

3 = 36.4 33.4
7 = 36.4 33.4
12 = 36.4 33.4

4 = 590 600
5 = 640 548
13 = 540 540

All the numbers seem good and within range.

Pin