Help! Vertical collapse in Crazy Climber cocktail (green line)

slseed1969

Member

Donor 2016
Joined
Dec 4, 2016
Messages
33
Reaction score
8
Location
Lake Balboa, California
Help! Vertical collapse in Crazy Climber cocktail (green line)

I recently purchased a Crazy Climber cocktail. The monitor was a bit flaky with intermittent noise so I decided to recap the monitor chassis. The monitor is a Mitsubishi (tube 370JFB22). After I got done swapping the caps, I turned it on and the game started playing blind with only a bright green horizontal line on the screen. I looks like I have vertical collapse. The chassis seems a little unusual. I read many recommendations to reflow the IC, but this chassis doesn't seem to have the typical IC. The only IC I can identify is the HA11235 chip which is a synchronous signal processor. In either case I did go back and reflow the chip. I also reflowed the big transistors and all the interconnects pins. I did notice there was quite a bit of old flux buildup on the board so I tried to clean most of it off. Still, with everything I've done, all I get is the green line when I power it up.

Is anyone familiar with this chassis and have any suggestions? Did I possibly fry a part that needs replacement and if so, how do I identify it?

I'd consider swapping the whole thing out if I could find a compatible monitor too because the burn in is pretty bad..

Attached are some pictures of the crt and board.
 

Attachments

  • IMAG0021.jpg
    IMAG0021.jpg
    189.5 KB · Views: 8
  • IMAG1555.jpg
    IMAG1555.jpg
    190.3 KB · Views: 8
  • IMAG0018.jpg
    IMAG0018.jpg
    211.6 KB · Views: 20
where you at buffett? hah!

you answered 10-20 other threads, this poor guy needs some help with this! :)

i did not answer because i have never seen this chassis before.

i do not want to give any info that is not helpful or misleading.
he has already done the most common things already.

other wise, since it is an odd ball chassis, it will be hard to find another 14" monitor or i would say trash it and find something else. but that is not really an option.

so i will say to you, why not help him if you know more about it than me or drag me into the conversation.

to the op.

this is advice on where i would start, on what i would do on this chassis. "some of it has already been done".

cap kit, a good re-flow of the chassis, try and locate the vertical transistors or IC and check it/them, look for any burnt resisters, check that the vertical pot is not cracked, and look for any cracks in the PCB or traces.

after that i do not know.

Peace
Buffett
 
Thanks for the reply. I know it can be hard with these odd ball parts. I'll take another pass over it. I did hear a louder thank normal cracking sound when I was pushing the connectors back on. It's possible I cracked the board.

I did manage to find a replacement chassis pcb on ebay, so if I can't fix this one I'll have a backup.
 
cool.

glad you found another one like it.
parts can hard to find sometimes.

good luck on your troubleshooting and the fix.

Peace
Buffett
 
Back
Top Bottom