HP 5300A - Digital Recorder

5-66. Removing A2 Power Supply Board
5-67. To remove the A2 Power Supply Board, remove
the batteries using procedures in Paragraph 5-65,
steps a toe. Remove the A2 board as follows:
a. Unsolder the BILK wire connected to A2(A).
b. Unsolder the WHT-BILK-ORN wire connec-
ted to A2(C).
c. Unsolder the BLK wire from LOW BATTERY
lamp connected to A2(D) and the GRN wire connec-
ted to A2(F).
d. Unsolder WHT-RED wire connected to A2(F).
e. Unsolder the WHT-BRN-REID wire connec-
ted to A2(G).
f. Unsolder the WHT-BLK-RED wire connec-
ted to A2(H).
g. Unsolder the BI.K wire connected to A2(B).
h. Using an offset pozidriv" screwdriver, re-
move the three screws securing A2. Loosen screw
securing the plastic power transistor.
i. The A2 Assembly should now be free for
removal.
j. To install A2 Assembly, reverse the procedures
of steps a toi.
5-68. DIGITAL RECORDER OUTPUT AND
HP 10533A RECORDER INTERFACE
5-69. The operation of Model 10533A Recorder Inter-
face and the 5300A DIGITAL RECORDER output
"Registered trademark, Stanley Company.
Model 5300A
Maintenance
can
be
checked
as
follows
(refer
to
Table
5-1
for
test
equipment
requirement):
a. Connect ac power to 5300A ac receptacle.
b.
Connect
the
small
interface
cable
connector
to
the
5300A_
rear-panel
DIGITAL
RECORDER
connector.
d. Connect the opposite end of the cable con-
taining the 50-pin male connector to the HP 5055A
Digital Recorder. Ensure that the recorder is set to
-8421 code.
d. Obtain a 50-pin female connector as listed in
Table 5-1. Interconnect the following pins:
Pin 4 to Pins 5, 9, 15, 37, 39, 41
Pin 8 to Pin 17
Pin 19 to Pin 20
Pin 25 to Pin 50.
e. Connect the hard-wired, 50-pin connector to
the 5300A AlJ1 connector.
f. Turn 5300A ac power on with SAMPLE RATE
control then press RESET. The 5300A display will
initially be 000000 and will continuously cycle as
follows:
11111] 444444 TT7T777
222222 55555 888888
333333 666666 999999
g. Turn on the HP 5055A Digital Recorder. The
recorder will print out lines of digits corresponding to
the particular digits being displayed on the 5300A. A
10- to 15-second printout should be sufficient to re-
cord the complete cycle of 5300A display data.
5-17