Re: 8032-SK/3016

From: Adrian Vickers (
Date: 2001-08-19 23:54:14

At 11:09 pm 19/08/2001 +0200, MagerValp wrote:
>>>>>> "AV" == Adrian Vickers <> writes:
>AV> First, the 8032-SK.
>AV> This machine acts dead to the world. When powered up, the valve in
>AV> the back of the tube glows, but the monitor itself doesn't seem to
>AV> come to life. This may just be because I can't hear it whistle,
>AV> but I can ususally hear these tubes... Also, the startup beep is
>AV> missing, and blind-typing "?chr$(7)[cr]" has no effect.
>I think this narrows down the problem to the power supply,  CPU, ROM
>or VIA. Well, not too narrow...

Hmm... The PSU is (I think) OK - at least, there's some volts coming off
it. CPU/ROM/VIA - I've no idea how to check these. Well, I *could* swap
them with the other 8032 I've got, but I don't want to try that until I
know I'm not going to fry known good chips...

Does funet have any chip pinouts? When testing voltages, it would obviously
be handy to check across the +ve and GND pins, rather than some signal pins...

>AV> I've taken some photos of the mainboard, because I'm not convinced
>AV> the mainboard is fully populated.
>And I think you're right. If you look at the schematics on funet,

It's not working for me ATM, I just get a wee red cross where the picture
should be :(

>you'll see that the empty sockets are for ROMs:
>  Socket	Function	Type		Address
>  UA3		Characters	2316 or 2332	N/A
>  UD7		Editor		2316		E000-E7FF
>  UD11		Expansion 2	2332		A000-AFFF
>  UD12		Expansion 1	2332		9000-9FFF
>Funet has the necessary ROM images:
>Nope, don't know which one's the best :) These are all for 50 Hz
>machines and you're in the UK aren't you?

I am. Interestingly, this Hi-res board has sockets marked UD7, UD11 and
UD12; the "GRAPHIX17/B" chip is in UD7, theres an un-marked ROM in UD11,
and UD12 is empty.

Next question: How do I turn the ROM images into chips? Add salt & vinegar? ;)

B-Racing: B where it's at :-)

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