U5000 screen stretched vertically in CGA

mecha

Well-known member
Joined
Apr 19, 2007
Messages
24,331
Reaction score
7,036
Location
MKE, Wisconsin
I have a 25" U5000 where if you run it in CGA mode, the middle 1/3 of the screen is stretched, and the top and bottom thirds are squished. this is with the resistor jumper hooked up to the TP205. is there a possibility said resistor is just bad? I don't know the rating that it's supposed to be off-hand, my mind is very cloudy right now working through illness.

considering I wasn't into this sort of thing 10 years ago, I don't know exactly what this "vertical sweep" kit was or what it did. I have another U5000 just like this one that looks identical and doesn't have this problem.

I have a T2 project that I'd like to get on the floor soon since all the snow melted (it's in another building), and this is the only monitor I have left, the K7000 in it is completely dead. lol

I have SEVERAL 25K5000 chassis laying around for parts, so if there's anything I need to rob to make this work, I'm sure I have a good shot at it.
 
yeah I capped it as soon as I got it last year. pulled it out of a Blitz 2000, which was medium res, so it wasn't an issue until about last year I tried it for UMK3 and it didn't work out for obvious reasons.

what's "U601", a transistor or something? I don't have it in front of me right now. so I can meter it against these other shitbox chassis I got to see if it's bad or not... it might even be missing on some of them. lol

EDIT: err, not last year anymore. make that the summer of 2009! not like it matters. lol
 
Last edited:
U601 is the vertical output IC.

Remember, there are TWO jumpers to move to select standard res or medium res. There's the TP205 jumper and there's the long jumper. Both must be set to their respective 15khz position for standard res operation.
 
U601 is the vertical output IC.

Remember, there are TWO jumpers to move to select standard res or medium res. There's the TP205 jumper and there's the long jumper. Both must be set to their respective 15khz position for standard res operation.

you're talking about the actual resolution jumper. yes, I did that. no triple vision here.

I didn't see U601, but I saw U701 which was a socketed IC near TP205, unless I read the numbers wrong. it's definitely an IC right?
 
U601 is an IC, it is standing off of the board against a large heat sink, as opposed to being parallel to the board and/or socketed. It is on the right side 2/3 of the way back if looking at the board as it is installed.
 
probably the same heatsink that's next to TP205 I'm guessing. I'll take another gander at it in a bit. it was dark in the room, I just thought I'd take a peek.

thanks gents.
 
we're good. it worked fine as-is, I'm glad I didn't start tearing it apart.

I just a huge friggin blob of gauss from turning the monitor flat. degauss coil should take care of that tomorrow though right?

I'm not gonna run into a problem where this thing's gonna be permagaussed or I have to do it manually all the time am I? :p
 
Back
Top Bottom