How to adjust B+ on WG V1001?

Rich Warren

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WG V1001 Horizontal line only

All my monitor is producing is a thin horizontal line on a black background. I have gone over every piece of the vertical output circuit, as well as the video driver transistor, video output transistor, and a handful of other caps, diodes, and resistors. A cap kit was done from day one so all the electrolytics have been replaced, and gone over with an ESR meter to be doubly sure they're ok. I had gotten a secondhand chassis to use for parts, if needed, and I swapped the circuit boards to see if there would be a difference...to which there is not. Same line on screen. My question is: Aside from the big filter capacitor (and 4 in 1 can), ceramic resistors, and the assorted diodes I have already checked on the metal chassis base, is their something on that base that could be causing the issue? Two different circuit boards tried on the same base, resulting in the same monitor symptom. The second chassis base is too far gone to swap out. Anyone have a suggestion?
 
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Thanks for referring me to that post, It's nice to know I'm not alone... My question seems a bit unrelated to the title of the question that I posted but after having read your voltages my problem is my B+, like you SHOULD be at 75V, is measuring 83V and that's turned all the way down and the 45V is measuring 12V, and that is turned all the way UP! I'm obviously having an issue with power, which may be contributing to the thin horizontal line. As I had said, both circuit boards (when swapped on chassis base) produce identical results.
 
Thanks for referring me to that post, It's nice to know I'm not alone... My question seems a bit unrelated to the title of the question that I posted but after having read your voltages my problem is my B+, like you SHOULD be at 75V, is measuring 83V and that's turned all the way down and the 45V is measuring 12V, and that is turned all the way UP! I'm obviously having an issue with power, which may be contributing to the thin horizontal line. As I had said, both circuit boards (when swapped on chassis base) produce identical results.

Honestly, 83VDC is fine on the 75VDC rail.....though, you should be able to adjust it. Can you adjust it up?...or does it stay 83VDC?

Also, I'm pretty sure there's no adjustment for the 45V rail. I'll have to pull some schematics....I don't recall that monitor having a 45V rail.....but I do know the only voltage adjustment is for the B+.

Edward
 
Also, how's your monitor mounted? Maybe you've got horizontal collapse as opposed to vertical collapse.

Edward
 
Also, how's your monitor mounted? Maybe you've got horizontal collapse as opposed to vertical collapse.

Edward


It's in a Space Invaders cabinet, so it's mounted neck-down and where the CRT has been turned 90 deg. making a long screen. So the bright vertical line I'm seeing should be the horizontal in actuality.
 
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