Search found 6 matches

by Luminen
08 May 2020 15:27
Forum: Beginner's questions about the OmniPCX OFFICE
Topic: Booting problem - is this unit dead?
Replies: 2
Views: 2654

Re: Booting problem - is this unit dead?

Works now (the switch was faulty).
by Luminen
28 Apr 2020 13:05
Forum: Beginner's questions about the OmniPCX OFFICE
Topic: Booting problem - is this unit dead?
Replies: 2
Views: 2654

Re: Booting problem - is this unit dead?

I suspect this might be a power supply problem, but what's the correct method for measuring the voltages? The lead batteries were very old and I have removed them. I suspect this unit has never been serviced. I'm doing this just as a hobby and this area doesn't even have landlines anymore (most of F...
by Luminen
27 Apr 2020 14:46
Forum: Beginner's questions about the OmniPCX OFFICE
Topic: Booting problem - is this unit dead?
Replies: 2
Views: 2654

Booting problem - is this unit dead?

Hi A well used OXO just arrived on my desk and as I tried to get it to start, there seemed to be problems. The red power led is on and when I press the power button it turns green, but doesn't stay green when I release the button. I can hear a relay switch clickin with the power button and again whe...
by Luminen
12 Jul 2019 12:30
Forum: 42xx Systems
Topic: DECM4 sync problem on 4200e 3.0
Replies: 2
Views: 18425

Re: DECM4 sync problem on 4200e 3.0

Everything works now. DECM4 was broken and I have also changed both the main boards.
by Luminen
04 Apr 2019 20:20
Forum: 42xx Systems
Topic: DECM4 sync problem on 4200e 3.0
Replies: 2
Views: 18425

Re: DECM4 sync problem on 4200e 3.0

I have digged deeper into this and it seem that there hasn't been a sync problem before as some of the old setup files show just this combination working and with 3.0 eproms. I have tried to feed 512 kHz to T0CLK and T2CLK leads from T2 board but it doesn't seem to work. A bit strange. Any ideas any...
by Luminen
02 Apr 2019 16:17
Forum: 42xx Systems
Topic: DECM4 sync problem on 4200e 3.0
Replies: 2
Views: 18425

DECM4 sync problem on 4200e 3.0

Hi I'm trying to make this old unit to work and it seems to be ok, but this DECM4 board is unhappy and just keeps the red led lit. AC board has the X4 jumper installed and still no luck. I do not have CKIBS or a board to mount it. What i have is this: CM, AC, DLC8 (3boards), SOTO4, SLC8 (2boards), T...

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