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carry on driver

Member Since 03 Jun 2011
Offline Last Active Jul 12 2011 01:40 PM
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Posts I've Made

In Topic: Poorly Mpu4? Please Help!

23 June 2011 - 04:39 PM

The led is on constantly and it seems to be just one light from each section of the light panel that strobes. Alphe display is blank, but the credit display shows "0".
I'm not sure if the roms are corrupted, the game card seems to have escaped the battery acid but I don't suppose I can find out without trying a different one can i? Iv been working away for 2wks and I come back tomorrow night so I'll have a tinker if I can find something to tinker with! Any suggestions welcomeg :)

In Topic: Poorly Mpu4? Please Help!

20 June 2011 - 11:18 AM

Cheers for the caps - on closer inspection the old ones were fooked so cheers!
Unfortunately its still not behaving though, so does anyone have any suggestions for what to replace next?

In Topic: Poorly Mpu4? Please Help!

11 June 2011 - 12:37 AM

Psu now works fine, the machine still won't start up properly, despite me repairing the broken tracks. Still got the same problem as when I started (buzzing and a few lights strobing, although the cash solenoids don't chatter anymore), so I guess its more undiagnosed battery damage. I'm gona have to start replacing things next I think...but where to start?!

In Topic: Poorly Mpu4? Please Help!

09 June 2011 - 12:37 PM

I got psu caps from ebay. They we're the right value and voltage but they were suprisingly small compared to the ones I removed. They were also only 2 pin versions rather than 4 pin, so I used booze.net's guide and the markings on the old caps to make sure the contacts were in the right place and soldered them in. Once everything was back together I tested it and... Nothing. On closer inspection the 63v fuse has blown so iv either done something wrong, the caps are the wrong ones, or the fuse had already gone and its just chance that iv spotted it now.

Ho hum, I'll check my work (I was very tired when I did it!) try a new fuse, then if that doesn't work I'll get the proper 4 pin caps from one of the suppliers reccomended above.
We'll fix it yet!

In Topic: Poorly Mpu4? Please Help!

04 June 2011 - 10:32 PM

oookie I've tested all the diodes near the battery site and all seem okay, haven't had chance to bell out the PCB tracks near there yet though, so that could still be part of the problem. I've also dismantled the PSU to reveal... fat caps!! They look like they might burst, so the plan is to replace those if I can find a supplier (I've found the 1000uf/16v on ebay, but the 4700uf/63v and 15000uf/25v only seem to be availiable with 2 solder tags rather than the 4 pins they need for the PSU board). Once that's done I'll be ordering a new battery (mine was an evil blue ni-cad) from aaamusements, and crossing my fingers!
cheers

Ps - Thanks Stan, I'll PM you tomorrow if I get chance and get the PCB belled out

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