Search found 4 matches
- Mon Nov 01, 2021 11:14 am
- Forum: Hardware
- Topic: Trouble replacing TR4 and TR5
- Replies: 4
- Views: 1653
Re: Trouble replacing TR4 and TR5
Excellent!
- Sat Aug 28, 2021 10:56 am
- Forum: WANTED
- Topic: Wanted: Zilog Z80, week 17 1982
- Replies: 8
- Views: 10122
Re: Wanted: Zilog Z80, week 17 1982
Memotech keyboard. Oh yes I want one! 
- Sat Aug 28, 2021 10:44 am
- Forum: Hardware
- Topic: Trouble replacing TR4 and TR5
- Replies: 4
- Views: 1653
Re: Trouble replacing TR4 and TR5
I second Mark's advice. I would add though that patience and practise is key. Patience now will lead to you learning how to do it reliably, and avoid damaging your board. Damaging a transistor is not so bad - you can buy replacements. But damaging a solder pad or the board itself, is more serious an...
- Sat Aug 28, 2021 10:35 am
- Forum: Hardware
- Topic: ZX Spectrum 48K Mainboard Issue 4S - Help!
- Replies: 15
- Views: 4058
Re: ZX Spectrum 48K Mainboard Issue 4S - Help!
I second what Mark is saying. You should check for shorts. You should check for continuity. And do this using the beeper or bell or whatever your continuity tester has on your multimeter. This may be a pain in the short run but it is better to know ASAP, and especially before you solder anything els...