NorCal KLOVers - need help w/ DK

jow

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If you saw the thread I posted over the weekend, I picked up a DK cabinet that was experiencing vertical collapse on the monitor. After reading through a Sanyo flow chart, my remedy seemed to be to replace the transistors on the chassis and see if that fixed it. Well, I replaced the transistors tonight, but when I hooked everything back up and powered it on, I got sparks/smoke on the caps of the DK PCB? WTF? Im pretty sure my PCB is ruined now, which fucking sucks.

EDIT: Chris' PM made me feel better about myself. Its nice to be called a dumbass every now and again, ha. I'll fix this myself.
 
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If you saw the thread I posted over the weekend, I picked up a DK cabinet that was experiencing vertical collapse on the monitor. After reading through a Sanyo flow chart, my remedy seemed to be to replace the transistors on the chassis and see if that fixed it. Well, I replaced the transistors tonight, but when I hooked everything back up and powered it on, I got sparks/smoke on the caps of the DK PCB? WTF? Im pretty sure my PCB is ruined now, which fucking sucks.

To make a sob story short, I'm starting a new part of my job next week, and with everything else life has for me right now, I have no time to really dive into this thing and figure out what my issues are.

Does anyone want to take on the project to see whats up? Obviously, I will pay for your time and whatever parts you may need. I will also bring the game to you, and pick it up whenever its done.

Send me a PM if you might be able to help me out.

Thanks

Joe


Look at the two white plugs on your audio amp board. Now look at the markings on them as well as the markings on the audio amp board, did you cross the two? This will explain your now fried board.
 
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FUCK!

I swore I triple checked that. Yep they were backwards. Changed them, and I'm back to vertical collapse. I guess I should do a full cap kit and look for a new DK PCB?

What a fucking moron I am. Dude, I looked at those things 3 times.
 
FUCK!

I swore I triple checked that. Yep they were backwards. Changed them, and I'm back to vertical collapse. I guess I should do a full cap kit and look for a new DK PCB?

What a fucking moron I am. Dude, I looked at those things 3 times.

You need to change beer Jow, that swilly Coor's Light shit you drink has go your thought process all fucked up.
 
I don't even drink during the week :(. Any idea why I'd still have collapse even after replacing the 2 transistors?
 
I just saw this thread after answering your other one in the monitor repair section. Are you 100% sure the service switch isn't in the service position? If not then you could have bad solder joints. Your DK board should have video and is probably even playable but most likely won't have sound anymore. PM me if you want and I'll hook you up with the board repair.
 
Look at the two white plugs on your audio amp board. Now look at the markings on them as well as the markings on the audio amp board, did you cross the two? This will explain your now fried board.

Yup...Riptor taught me that yesterday while he capped my Sanyo...he said it will fry the fuck out of your board if you cross those two connectors...I think they are labeled JB and JC
 
Yup...Riptor taught me that yesterday while he capped my Sanyo...he said it will fry the fuck out of your board if you cross those two connectors...I think they are labeled JB and JC

Live and learn I guess :(

I fucked that up, but I swear I looked 3 times before I hooked everything back up. Oh well. I'll get the PCB fixed/replaced.
 
Live and learn I guess :(

I fucked that up, but I swear I looked 3 times before I hooked everything back up. Oh well. I'll get the PCB fixed/replaced.

sucks man. If i had a spare board I would hook you up! Think you could do a swap with mikesarcade.com for like $80
 
sucks man.

Yeah, I was pissed to say the least. Its an instantaneous thing too, you have no time to unfuck it up.

The best part was after I turned it off, swapped the audio cables and fired it back up, I forgot I left the chassis in service mode. Went to flip the switch, and have no clue what I touched and got zapped big time.

I decided to go to bed at that point :)
 
I don't even drink during the week :(. Any idea why I'd still have collapse even after replacing the 2 transistors?

I wouldnt do any other troubleshooting before recapping it. Caps will likely fix your collapse. But now you have another issue to deal with.
 
More than the caps are messed up.. the actual traces between them were fried in a spot. (I've done this to a DK3 board.) I just kept all the roms and such, and got a new one.
 
you can do a swap for less than that with Dick Millikan.

Yeah, Im not too worried about the PCB. DK's aren't exactly hard to find. It still sucks that I did it, but its not like I fried a Quantum PCB.

Ordered caps for the chassis. We will see what happens.
 
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