Beeb Repair

for bbc micro/electron hardware, peripherals & programming issues (NOT emulators!)
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sbadger
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Beeb Repair

Postby sbadger » Tue Oct 24, 2017 1:25 pm

I managed to score a cheap beeb from ebay as a fixer upper. Turned out to be a fairly good condition Issue 3

It's got a long beep so am investigating etc. my problem was in removing the psu cables the purple spade snapped clear off.
Now i've removed it no problem but can't seem to find a suitable male spade to put back on the board.

Anyone know a source?

Thanks
stew
Last edited by sbadger on Mon Oct 30, 2017 10:52 am, edited 1 time in total.
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1024MAK
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Re: Beeb Repair

Postby 1024MAK » Tue Oct 24, 2017 1:33 pm

Mark at RetroClinic should be able to sell you them in small numbers. Unless you want to buy them in packs of 100 (IIIRC) from RS Components...

Mark
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sbadger
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Re: Beeb Repair

Postby sbadger » Sat Nov 11, 2017 12:10 pm

Mark sorted me out, thanks.

And the good news i've got her running now. Some of the logic chips looked manky and I ordered a bunch from china.
In the meantime I recapped the PSU and reseated all the socketed chips... bingo, long beep fixed. chips not needed.

Though i've got a new question, in it's life the 'ashtray' cover has been popped out, so I sourced a ZIF socket but it doesn't fit.
image1.JPG

image2.JPG


That's never going to fit, what's the bit that is different? I assumed they were standard, is my beeb case different or the ZIF?
Anyone seen this before
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Pernod
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Re: Beeb Repair

Postby Pernod » Sat Nov 11, 2017 12:13 pm

The ashtray was never intended to house a zif socket. It contained two cartridge sockets that were installed with the Speech upgrade.
- Nigel

BBC Model B, ATPL Sidewise, Acorn Speech, 2xWatford Floppy Drives, AMX Mouse, Viglen case, etc.

Boydie
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Re: Beeb Repair

Postby Boydie » Sat Nov 11, 2017 1:38 pm

Watford did release a zif socket for the cartridge socket. Istr it fitted fine in the later cases (which had the larger hole for the cartridge, with perforations so it could be poked out.
Early cases came with a pre-cut opening which was smaller than the later perforated version.
If you look from the inside, the cut-out in the plastic should be large enough to take the zif, and it’s the black cover that’s too small. With a suitably sharp knife you can extend the hole in the covering plastic to match that in the case.

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sbadger
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Re: Beeb Repair

Postby sbadger » Sun Nov 12, 2017 10:10 am

Thanks, I had a look, and even that is too small.

image1.JPG


I could probably get the glass paper out and shave the case edge and the ZIF, but its going to end up looking really crappy so might just leave it without

It's an issue 3 case, so guess the earlier ones really were just for speech cartridge.
A3020| A3000x3| BBCBx3 | Electrn | Masterx3 |RiscPC| RPix3
A600 | C64 bbin x2|C64C | Toastrack |QL | XB360&1X |GB |GBC |GBA |GBASP | DS | 3DS XL x2| MD | MS
Atari 7600 | PS1-2-3-4| PSP |Vita |SNES |GC |N64 |Wii & U |Switch |JammaCab |Sony PVMx2

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tricky
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Re: Beeb Repair

Postby tricky » Sun Nov 12, 2017 10:28 am

My (I think) Watford ZIF in my issue 3 has the ZIF above the plastic with the PCB below, so requires desoldering to install/remove it.

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sbadger
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Re: Beeb Repair

Postby sbadger » Mon Nov 13, 2017 10:38 am

tricky wrote:My (I think) Watford ZIF in my issue 3 has the ZIF above the plastic with the PCB below, so requires desoldering to install/remove it.


thanks Richard, interesting way round it, might just work, I'll prob. bring it to ABUG and have a go.

stew
A3020| A3000x3| BBCBx3 | Electrn | Masterx3 |RiscPC| RPix3
A600 | C64 bbin x2|C64C | Toastrack |QL | XB360&1X |GB |GBC |GBA |GBASP | DS | 3DS XL x2| MD | MS
Atari 7600 | PS1-2-3-4| PSP |Vita |SNES |GC |N64 |Wii & U |Switch |JammaCab |Sony PVMx2


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