[time-nuts] FW: HP-5732A operation with no CRT display.

Lester Veenstra m0ycm at veenstras.com
Sun Jun 28 14:22:39 UTC 2020


 

TimeNuts:   

 

    I have a HP 5732A with a defective CRT driver board. Since this  (A17)
is undocumented (as no repairable) I am of course trying to work my way
around it to see if the defect is findable.

 

Any A17 boards loose out there, or even better, documentation?

I see good H and V sync inputs as well as the ZMod (Video data) into the
board, bur the drive for the two deflection coils is not what I would
expect.

 

Trace is some where up off crt but with vertical coils disconnected, still
no horizontal line.

With no drives connected to H & V coils, dim spot in center. Spot moves well
in both axis with low voltage DC applied. 

 

 

However, it occurs to me; Does  anyone have HPIB code that allows use of the
instrument without the GUI user interface?

I seem to recall some discussion of “raw data” dumps turned into useful
measurements.

 

 

Lester B Veenstra  K1YCM  MØYCM  W8YCM   6Y6Y

lester at veenstras.com

 

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