Problem with my new ZXpand+
Re: Problem with my new ZXpand+
me wonders if this particular ZXpand+ is one that snuck out without that smoothing capacitor ?
Regards Andy
Regards Andy
what's that Smell.... smells like fresh flux and solder fumes...
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Re: Problem with my new ZXpand+
Should be a capacitor near to the regulators I only mention it as my board was missing it, and it exhibited some strange behaviour and worst of all serial comms didn't work properly because of it.
Regards Andy
P.s. Charlie you sly fox..
Didn't realise you'd built in the ability to program the cpld also
Regards Andy
P.s. Charlie you sly fox..
Didn't realise you'd built in the ability to program the cpld also
Last edited by Andy Rea on Wed Feb 21, 2018 9:11 pm, edited 1 time in total.
what's that Smell.... smells like fresh flux and solder fumes...
Re: Problem with my new ZXpand+
Could you please post a photo of the area with the capacitor that was missing?
Kind regards Paul
Kind regards Paul
In theory, there is no difference between theory and practice. But, in practice, there is.
Re: Problem with my new ZXpand+
In centre bottom dark thing just below and to the left of the diamond shaped chip...
Regards Andy
what's that Smell.... smells like fresh flux and solder fumes...
- 1024MAK
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- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: Problem with my new ZXpand+
Charlie left off an electrolytic
Mark
Mark
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
Re: Problem with my new ZXpand+
In order to draw the attention from sirmorris
The diamond is actually a square isn't it?
I don't own a diamond but I have some squares for comparison
In theory, there is no difference between theory and practice. But, in practice, there is.
Re: Problem with my new ZXpand+
Its all a matter of perspective
what's that Smell.... smells like fresh flux and solder fumes...