Now it is certain the failure is power supply. I fed 26V into DC port and
everything is working as before. I'd rather replace this faulty supply.
Question is, 24V? 28V? 30V? or 28.45V? This power supply appears to be a
custom unit. Still looking for spec on power supply.
At least it's not the cesium tube.... phew!
---------------------------------------
(Mr.) Taka Kamiya
I'm stuck in a wormhole.... Hello, worms!
On Sunday, March 17, 2019, 3:59:57 PM EDT, paul swed <[email protected]>
wrote:
TakaNo familiarity with 4040 and I don't have schematics.But thats not unusual
for a lot of time-nuts equipment.But happy to give a remote hand. (Travelling
this coming week so slow responses)Others may have more useful details like a
schematic.RegardsPaulWB8TSL
On Sun, Mar 17, 2019 at 3:02 PM Taka Kamiya via time-nuts
<[email protected]> wrote:
I have an FTS-4040/A Cesium Oscillator from Datum. It was working last night
and dead today. A/C available LED is lit but nothing else. Checking power
supply, I read 8.9V. (large switching supply on back panel) Rather odd
voltage I thought. Checked some ICs on a board. It's not getting power.
Does anyone have this unit or know what this switching supply is supposed to
output? It is a single voltage supply.
---------------------------------------
(Mr.) Taka Kamiya
I'm stuck in a wormhole.... Hello, worms!
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