K7000 woes

GuidoTorpedo

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OK, so I have 2 more 7000's that are dead. One is dead by my hand, the other killed itself, so to speak...

The one that killed itself was working fine for about a month after I recapped it. Now the fuse is blown. It does have the dreaded white knob flyback. What should I replace on this (besides flyback and fuse, of course)?

The one that i killed... lets just say I need to stop tinkering with high voltage at the end of the day. I fired it up in my SF2. It came up, but the colors were off. So I go to adjust the colors... nothing doing. I pull the remote board, and accidently graze across the top of the isolation transformer (it is a shelf mount frame with the iso mounted on the wood portion of the frame. POP POP from the remote board, along with a couple sparks from the remote board, and screen goes blank. I look at the rgb sync plug, and I'm off by one! AARGH! that's why the color was off. Now, this monitor wiull power up, but no picture. It has static on the screen and all, but just no picture. What in the F did I do to this thing?

One of those days.

-Mike
 
the first one check the hot, c36, vr, and the 6 dioeds by the filter cap d19-24

second one you may have fried one of the resistors behind the input headder or worse fried Ic1 also check all the transistors Q1-3.

maby its somthing simple like an open resistor.

Peace
Buffett
 
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