Search found 1665 matches

by exxos
Mon Apr 23, 2018 8:00 pm
Forum: STE
Topic: CA300779-001 REV 5.1
Replies: 2
Views: 32

Re: CA300779-001 REV 5.1

Icky wrote:
Mon Apr 23, 2018 7:49 pm
What intrigues me are the patch wires on the board and piggy back on U211.

Factory bodge :) if you look on later revisions of the motherboard, they have three IC's soldered to the motherboard..
by exxos
Mon Apr 23, 2018 7:14 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: MC68060 REV 6 E41J CPU - End of stocks
Replies: 0
Views: 33

MC68060 REV 6 E41J CPU - End of stocks

As these have been huge gamble and expense in obtaining real REV6 CPUs which are verified by myself working at over 95 MHz ( my stock is worth £875 just with those few CPUs in stock!) , plus spending way too much time fighting disputes with sellers over fake CPUs, and often losing out on postage cos...
by exxos
Mon Apr 23, 2018 5:46 pm
Forum: STE V1 32MHz BOOSTER
Topic: STE V1.5 32MHz BOOSTER - STATUS
Replies: 64
Views: 2540

Re: STE V1.5 32MHz BOOSTER - STATUS

12.jpg
12.jpg (144.35 KiB) Viewed 24 times
If anything, the squares might have to be fraction smaller than the CPU. Square is actually quite hard to fit in even with just one row of pins inserted.
by exxos
Mon Apr 23, 2018 4:59 pm
Forum: STE V1 32MHz BOOSTER
Topic: STE V1.5 32MHz BOOSTER - STATUS
Replies: 64
Views: 2540

Re: STE V1.5 32MHz BOOSTER - STATUS

I guess the question I have, is when plugged in like this, does the plastic square support the PLCC socket spring connectors enough, since it doesn't have contacts that extend outside of the dimensions of the square, like the CPU does, which would normally put pressure on the PLCC socket contacts w...
by exxos
Mon Apr 23, 2018 4:11 pm
Forum: STE V1 32MHz BOOSTER
Topic: STE V1.5 32MHz BOOSTER - STATUS
Replies: 64
Views: 2540

Re: STE V1.5 32MHz BOOSTER - STATUS

So the idea would be that it ends up like a hand assembled version of this: Yes and no.. If you look at the images in previous posts you can see how it plugs in.. The only issue is this a bit wobbly as nothing to hold the pins in place inside the socket.. It is a pretty tight fit, but need some sor...
by exxos
Mon Apr 23, 2018 2:14 pm
Forum: STE V1 32MHz BOOSTER
Topic: STE V1.5 32MHz BOOSTER - STATUS
Replies: 64
Views: 2540

Re: STE V1.5 32MHz BOOSTER - STATUS

I'd be happy to spend a few hours on seeing if I can get the tolerance level needed (I assume I only have to check for a snug fit in a PLCC68 socket?) if it's a substantial cost saving for you. Unless you already ordered all the plastic you needed .. :) These squares are costing about £7 each at th...
by exxos
Mon Apr 23, 2018 1:37 pm
Forum: STE V1 32MHz BOOSTER
Topic: STE V1.5 32MHz BOOSTER - STATUS
Replies: 64
Views: 2540

Re: STE V1.5 32MHz BOOSTER - STATUS

Still waiting for the PCBs.. But the plastic squares just arrived...

stesq.jpg
stesq.jpg (31.25 KiB) Viewed 27 times
by exxos
Sun Apr 22, 2018 2:57 pm
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 31
Views: 291

Re: TT/Mega STE power supply headaches

You could try a 1k pot in place of the 543R resistor and just try a few ohms higher and lower to alter the bias voltages. Though if the 5v is to high that could effect things as well. Using the diode in various places may also fix the problem, but we need to eliminate each possibility one by one unt...
by exxos
Sun Apr 22, 2018 12:27 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: STFM case remake
Replies: 98
Views: 5316

Re: STFM case remake

Do a charge back with the bank/credit card people? You can still do this with debit cards but I think its more complex. I looked at it a little , seems if product never arrived I can claim back within 500 days or so. There was no delivery date stated, but I tink by law "reasonable" time is not head...
by exxos
Sun Apr 22, 2018 10:41 am
Forum: PSU (power supplies)
Topic: TT/Mega STE power supply headaches
Replies: 31
Views: 291

Re: TT/Mega STE power supply headaches

As I said already.. Q2 is ON preventing c23 from charging. You need to do as I suggested to diagnose the problem. Randomly changing parts is not the answer!