another rampack with problems

Discussions about Sinclair ZX80 and ZX81 Hardware
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stefano
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Re: another rampack with problems

Post by stefano »

Evil, evil rampacks! Mine works only when its case is open. If I try to add the cover and the screws, it locks the zeddy.
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mrtinb
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Re: another rampack with problems

Post by mrtinb »

stefano wrote: Fri Oct 15, 2021 2:51 pm Evil, evil rampacks! Mine works only when its case is open. If I try to add the cover and the screws, it locks the zeddy.
That sounds like a bad connection. Have you tried the solder iron, on every single solder point?
Martin
https://zx.rtin.be
ZX81, Lambda 8300, Commodore 64, Mac G4 Cube
bola_dor
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Re: another rampack with problems

Post by bola_dor »

The ribbon cable its a nightmare... I would renew all the soldering both sides.. and the border connector..
If ICs are on sockets like mine there is really very little space in there. The ICs keeps almost touching their backs together...
Ernesto
ZX80 USA, ZX81UK, ZX Spectrum, ZX Spectrum+, ZX Spectrum 128+ UK, ZX Spectrum +2/A, Sinclair QL, CZ1000, CZ1500, CZ2000, CZ1000Plus, CZ1500Plus, CZ Spectrum, CZ Spectrum Plus, TK83, TK85, TK90X, TK95. TS2068. And more to come :D
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stefano
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Re: another rampack with problems

Post by stefano »

Good hint ! I will.. in a future spare time slot :)
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