1040 STF : 2 Chips OK, 6 Chips NOK

Problems with your machine in general.
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PhilC
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Re: 1040 STF : 2 Chips OK, 6 Chips NOK

Post by PhilC »

Happy to see you sorted it, well done :dualthumbup:
If it ain't broke, test it to Destruction.
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rubber_jonnie
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Re: 1040 STF : 2 Chips OK, 6 Chips NOK

Post by rubber_jonnie »

My guess, a bit of both. The broken pin certainly wouldn't have helped, but the solder whisker on A16 was effectively jumpering both 1M and 256k at the same time, so not helping either.

Glad you're up and running, back to fixing up my Mega now :)
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...

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