[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
452 Stable Ln (HC84 RFD USPS Mail)
Keyser WV 26726
GPS: 39.336826 N 78.982287 W (Google)
GPS: 39.33682 N 78.9823741 W (GPSDO)
Telephones:
Home: +1-304-289-6057
US cell +1-304-790-9192
Jamaica cell: +1-876-456-8898
More information about the Time-nuts_lists.febo.com
mailing list