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by troed
Mon Oct 02, 2017 1:07 pm
Forum: EVERYTHING ELSE
Topic: Boosting the Mega ST motherboard
Replies: 11
Views: 3781

Re: Boosting the Mega ST motherboard

I had to select a MMU to get it going. And then I would also get a picture and desktop in High-res, but with "Jailbars" Jailbars is due to a slight clock desync between Shifter and MMU. You could try inserting some component that would delay the clock a bit. (As exxos mentioned I'm slowly doing thi...
by troed
Sat Sep 30, 2017 3:02 pm
Forum: ROM UPGRADES
Topic: TOS104 / TOS102 MEGA ST
Replies: 2
Views: 1554

Re: TOS104 / TOS102 MEGA ST

Going by myself and the one other person I recently suggested this kit to, it's very common to lack the 74LS11. It's a very cheap chip, unless you need to find a local supplier and pay postage for a single one ;) Maybe you could supply them with the kit?

/Troed
by troed
Wed Aug 30, 2017 6:28 pm
Forum: PSU (power supplies)
Topic: Discharging capacitors, PSU-testing with dummy loads
Replies: 33
Views: 7733

Re: Discharging capacitors, PSU-testing with dummy loads

Also, the PSU might not start up as it should if you only connect the 12V test resistor. You need to load the 5V rail as well with the other one.

(I don't recall which PSU I did when I realized this, either Falcon or MSTE I think)

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