Re: HP XY Display PSU Query
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+250V supply is current limited to 270mA.? +15V uses an LM317T without a pass transistor so maxes out around 1.5A -15 uses 79UG1C without pass transistor so maxes out around 1A.? +20 uses a 21.5V zener driving a 70W Darlington as pass transistor which equates to about 3.25A but probably much less.
Ah now I understand. You are in luck! Keysight has the operation and service manual for the 1336S which is the 1336P power supply plus a 1336A display. It has a full parts list, schematics and diagrams for both 1336A and S.
The power pin out is: (Power connector pin/A1J3 motherboard pin) Pin 1/5 +250VDC Pin 2/3 +20VDC Pin 3/1 +15VDC Pin 4/2 -15VDC Pin 5/NC Chassis GND Pin 6/NC Chassis GND Pin 7/NC Chassis GND Pin 8/4 GND for +20VDC Pin 9/6 GND for +250VDC
I hope you are able to get it going!
I think thy is the problem - there is a mil spec JAE connector in the back with pins for the various supply rails. No idea is any of them are AC. Bw
Tony
Oops, I was mistaken. The 1336S is an external power supply for the 1336A. Does your 1336A have AC and DC inputs?
Sadly there does not seem to be a manual of any kind relating to any of the different versions of the 1336 display - other than the spec sheet from various HP catalogues. Or at least my excavations on the internet have not revealed anything.
And it is not in the Artek manual portfolio either.
Internally they have a very different design to the later 1340A displays that I am more familiar with.
BW
Tony
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