HP 5384A Service Manual

HP 5384A and HP 5385A
Adjustments
c. Adjust A3R25 for a DVM reading of 5 volts ±0.5
volts; A3R25 may be fully clockwise.
d. Set the counter ST8Y /ON switch to ON;
observe the DVM reading to be approximately 90 mV
±10 mV. Set the switch back to ST8Y.
5-30. Fast Charge Threshold Adjustment:
a. Connect the HP 5384A/HP 5385A as shown in
Figure 5-10.
b. Set A3R26 fully counterclockwise. Set the HP
62378 Power Supply to its 18-volt range and adjust to 7
volts ±10 mV.
c. Slowly adjust A3R26 clockwise while observing
the ampmeter on the HP 62378 Power Supply. Con-
A3
A3W1
,RED'
10!!
20W
RESISTOR
0811-1655
A3W2
'BLACK,
HP 3465A
VOLTMETER
tinue the clockwise adjustment until the ampmeter
drops to about 200 mA ±100 mA.
d. Turn all test equipment off and disconnect the
power cable from the counter. Disconnect the 10
ohm, 20 watt resistor.
e. Reconnect the A3 Charger board red and black
battery wires. Observe proper polarity (red is positive,
black is negative) and ensure the wire clips are fully
engaged.
f. Replace the top cover. Ensure the four black
plastic hold-down tubes, HP Part Number 4177-0236,
are in place. As the cover is being positioned, ensure
the W2 ribbon cable assembly will not be pinched
between the top and bottom covers.
HP 62378
POWER SUPPLY
Vll
COM
@[E][E]@
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Figure 5-10. Fast Charge Threshold Adjustment Setup
5-8
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HP 5384A Specifications

General

Brand	HP
Model	5384A
Category	Cash Counter
Language	English