Fixed it!

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DaveBurke
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Fixed it!

Post by DaveBurke » Wed May 16, 2018 8:21 pm

As I mentioned in my introduction thread, my old Beeb's PSU exploded. So, I ordered a capacitor replacement kit from Retroclinic on eBay, and fixed it tonight.

Hmm... looks like someone has had the PSU apart before me. C9 had been replaced with something weird, and they'd hamfistedly desoldered it so badly that the copper tracks had lifted from the PCB, and there's a star washer missing from one of the earth connections.

I've fixed it up with some little wire links to the nearest intact pads, and replaced the missing star washer.

As I was putting it back together, the -5V pin on the motherboard just snapped clean off. I was being very gentle with it, but I suspect it had been bent beforehand. I replaced it with a little pin and push on connector from the bits box.

Plugged it in, flicked the switch......

Booooooo BEEP. Yay!

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trixster
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Re: Fixed it!

Post by trixster » Wed May 16, 2018 8:45 pm

Top work! Another beeb in the land of the living =D>
A3020 | A3000 | A420/1 | BBC B + 128K RAM/ROM + 20K Shadow + Pi0 + VideoNuLA
Master Turbo + DC + BeebSID | Atom | A4000 060 | A3000 060 | A1200 060 | A500
Atari Falcon 060 | Saturn | PS1 | SNES | CPC6128 | C64 | 3DO | MD | Jaguar

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daveejhitchins
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Re: Fixed it!

Post by daveejhitchins » Thu May 17, 2018 5:01 am

DaveBurke wrote:Plugged it in, flicked the switch......

Booooooo BEEP. Yay!
=D>

Dave H :D
Parts: UM6502CE, GAL22V10D, GAL16V8D, AS6C62256A, TC514400AZ, WD1772, R6522, TMS27C512, AT28C256
Products: ARA II, ABR, ATI, AP6, MGC, AP5 . . .
For a price list, contact me at: Retro Hardware AT dave ej hitchins DOT plus DOT com

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tricky
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Re: Fixed it!

Post by tricky » Thu May 17, 2018 5:51 am

I use the cut off legs from fitted x2 caps to lie where a track has been broken from one hole back to the nearest through hole component or even resistor legs for lighter work.

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