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by exxos
Mon Jun 17, 2019 3:48 pm
Forum: ELECTRONICS
Topic: APC SU1400 All lights flashing issue
Replies: 5
Views: 4468

Re: APC SU1400 All lights flashing issue

Hmm that can't be right...

IMG_4367.JPG
IMG_4367.JPG (362.46 KiB) Viewed 4447 times
IMG_4370.JPG
IMG_4370.JPG (183.13 KiB) Viewed 4447 times

2 of the relays measured odd..

DISSECTION TIME!!!

IMG_4369.JPG
IMG_4369.JPG (400.66 KiB) Viewed 4447 times

That looks pretty toasted to me.
by exxos
Mon Jun 17, 2019 2:08 pm
Forum: ELECTRONICS
Topic: APC SU1400 All lights flashing issue
Replies: 5
Views: 4468

Re: APC SU1400 All lights flashing issue

These were a bugger to get out :roll: 4 of the relays are the same, so makes life a little easier.. now to see if they still exist... IMG_4364.JPG r1.jpg r2.jpg Original datasheets... RP920145.pdf az755.pdf The ones I think I am going to order are... https://uk.farnell.com/omron/g2rg2a424dc/relay-dp...
by exxos
Mon Jun 17, 2019 1:25 pm
Forum: ELECTRONICS
Topic: APC SU1400 All lights flashing issue
Replies: 5
Views: 4468

APC SU1400 All lights flashing issue

So my APC 1400 would go for a few weeks, then just die with every light on the front flashing. APC's support pages just says "hardware failure" which is of no help. After searching the web for hours, it seems a couple people claim to have suggested its the relays inside going faulty. I cam...
by exxos
Mon Jun 17, 2019 10:46 am
Forum: TF534 (OBSOLETE)
Topic: exxos 534 blog - Atari
Replies: 44
Views: 19584

Re: exxos 534 blog - Atari

PhilC wrote: Mon Jun 17, 2019 9:36 am Apologies for supplying sub standard components
It does the same with my 030 Phil. I think they need a heatsink even if running at 33MHz.. I need to more tests... Difficult to diagnose when it wasn't working for 3 hours yesterday, now I can't get it to fail the same way.
by exxos
Mon Jun 17, 2019 8:25 am
Forum: TF534 (OBSOLETE)
Topic: exxos 534 blog - Atari
Replies: 44
Views: 19584

Re: exxos 534 blog - Atari

Last night it wasn't working again when I passed out for the night.. turned it on several times thismorning and its working fine... I'm wondering if its suffering from wake up state issues as it seems to be alternating at random when its working and not working.. hard to prove as its not currently m...
by exxos
Sun Jun 16, 2019 11:25 pm
Forum: TF534 (OBSOLETE)
Topic: exxos 534 blog - Atari
Replies: 44
Views: 19584

Re: exxos 534 blog - Atari

I made some progress with the floppy drive. Its actually loading GB6 now and running, but there is some slight graphics corruption and the scores are all reading 0% :shrug: But oddly it is stable. It seems to be relating to the CPU seeing DTACK during a DMA cycle. Of course its very hard to follow s...
by exxos
Sun Jun 16, 2019 9:04 pm
Forum: ALPHA USER BUILDS
Topic: Forgottenmyname - Progress - Part 2
Replies: 124
Views: 56163

Re: Forgottenmyname - Progress - Part 2

How you end up with V&H swapped ? I thought it was working originally ? Wasn't it you who put the ROM socket in wrong originally as well :)

RAM fault may well be a bad socket or solder joint on the RAM headers or MMU, or buffers..
by exxos
Sun Jun 16, 2019 5:43 pm
Forum: ALPHA USER BUILDS
Topic: Forgottenmyname - Progress - Part 2
Replies: 124
Views: 56163

Re: Forgottenmyname - Progress - Part 2

If the monitor isn't syncing then does GLUE have H & Vsync outputting ? Does it have a 8MHz clock input ? I mean even with a no booting board the monitor should still get syncs from the GLUE...
by exxos
Sun Jun 16, 2019 5:05 pm
Forum: MEMBER BLOGS
Topic: PhilCs blog / the latest things hes broken(fixed)
Replies: 708
Views: 192775

Re: FMNs blog / the latest things hes briken(fixed)

Best to progress to hating any sort if socket or connection ;)

The last 68k sockets and header pins I got, I had them in the ultrasonic cleaner to see if it improves me luck.
by exxos
Sun Jun 16, 2019 5:01 pm
Forum: ALPHA USER BUILDS
Topic: Forgottenmyname - Progress - Part 2
Replies: 124
Views: 56163

Re: Forgottenmyname - Progress - Part 2

Do you want to send it to me to have a fiddle with Phil ?

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