Search found 610 matches

by Pr0f
Sat Jul 04, 2020 2:42 pm
Forum: General QL Chat
Topic: Key matrix positions
Replies: 3
Views: 78

Re: Key matrix positions

The other piece of you puzzle can be found in the aurora manual - as it gives the key tails positions to IPC pin row and colum definitions

http://www.dilwyn.me.uk/docs/manuals/aman2.pdf
by Pr0f
Sat Jul 04, 2020 2:37 pm
Forum: General QL Chat
Topic: Key matrix positions
Replies: 3
Views: 78

Re: Key matrix positions

by Pr0f
Fri Jul 03, 2020 9:05 am
Forum: Feedback Section
Topic: Tetroid.
Replies: 4
Views: 3799

Re: Tetroid.

Given he lives in the outlying regions, it's not suprising it takes a while - but I have to say I have several products from Tetroid - and all have been packed really well, documentation included to get you going, and the boards themselves are excellent build quality.

Top Marks! :D
by Pr0f
Mon Jun 29, 2020 2:28 pm
Forum: Hardware
Topic: QL-SD
Replies: 41
Views: 1164

Re: QL-SD

A lot depends on the type of socket used - push instert / push eject are the best, as it's a positive action for both operations, and I believe the socket has a switch to give 'card present' when inserted. Even someone with stubby fingers like me can get a microSD out of one of those sockets. There ...
by Pr0f
Mon Jun 29, 2020 10:59 am
Forum: Hardware
Topic: Aurora somewhere?
Replies: 51
Views: 13007

Re: Aurora somewhere?

gorlum wrote:Who can put a photo of the Aurora on the side of the tracks?


It looks like a 4 layer board - so that probably won't get you very far.
by Pr0f
Sat Jun 27, 2020 8:48 am
Forum: Hardware
Topic: Issue 6 VM12 & resistors confusion
Replies: 79
Views: 2958

Re: Issue 6 VM12 & resistors confusion

I'd second what Tobias says, a new keyboard. Repairs? - even a small amount of silver conductive paint doesn't hold up for long. I just replaced one keyboard where it had failed on the bend where the keyboard tail tucks behind the metal backing plate - this is such a tight turn - the plastic had gon...
by Pr0f
Fri Jun 26, 2020 3:21 pm
Forum: Hardware
Topic: Issue 6 VM12 & resistors confusion
Replies: 79
Views: 2958

Re: Issue 6 VM12 & resistors confusion

I have a spare 8049 as I recently put a Hermes chip in one of the QL's i have, so you are welcome to that if you want it. Just PM me. But I suspect the issue is more likely the keyboard matrix...
by Pr0f
Fri Jun 26, 2020 11:53 am
Forum: Hardware
Topic: Issue 6 VM12 & resistors confusion
Replies: 79
Views: 2958

Re: Issue 6 VM12 & resistors confusion

Those old intel Microconrtoller chips are quite robust - a touch screen company i worked for years ago used them on one or two of their controllers (well the ROMLESS version), and they are very tolerant of abuse. Simple resistor diode protection on the inputs was all we used. The QL has resistors on...
by Pr0f
Fri Jun 26, 2020 9:15 am
Forum: Hardware
Topic: Issue 6 VM12 & resistors confusion
Replies: 79
Views: 2958

Re: Issue 6 VM12 & resistors confusion

a fracture in the keyboard tails is one of the most common 'failures - particularly if you've had the lid off a few times, - it's also possible that the sprung contcts have moved too far back in those long connectors the keyboard plugs into - if you have a fine pick or some dentists tools, or a fine...
by Pr0f
Tue Jun 23, 2020 9:41 am
Forum: Compatibles Corner
Topic: Q68 support thread
Replies: 62
Views: 9830

Re: Q68 support thread

I took it to mean "Black Box", though I realise the Q68 could also be in a black box - mine is. But a more expanded meaning - original QL case and using the original video circuitry. This allows for expansions within the case. Technically Qimi / Minerva / Hermes / QL-SD are all expansions ...