Re: Second G-08 is Done

On Tue, 5 Feb 2002, Tim Tewalt wrote:

> Everything seemed to check out OK so, just for grins, I swapped
> the connectors around from the deflection transistors and noted
> that the problem switched to the top of the screen.

Mine doesn't :-(
 
> Swapped in a different deflection transistor heat sink assembly
> and the problem went away. I'll open up the bad assembly and
> inspect/fix another time.

Some deflection transistors heat sinks have 100ohm resistors across them,
and some don't :-/

I was recently in G08 fixit mode myself (my Eliminator came up with a
vertical line down the center...NO!!!) and I also had a monitor from a
Star Trek that had lost half it's screen.

They were different from each other, so I took some pictures of the boards
differences and of the hacks and the HV unit and so forth and will be
making a html page some time in the near future for all this.

Basically, I have classified them by two types:

Type I: Contains the least hacks, generally is screened orange.

Type II: Has the diode,resistor,capacitor hack jumping a resistor in
the X and Y section. Has more resistors populated near the X and Y fuses
than the Type I deflection board. I think this type usually has the two
large resistors, as opposed to the four large resistors (2 teepeed
together).

I need to go through my schematics to see which schematics from what
manuals match up with the types above, and document it all.

Anything you can document while working on these monitors would be great
to hear about.

-- 
Mark Jenison
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