363-205-401 Power Up:
Issue 7, March 1997 Page 1 of 6
DLP-505
Install 337A Battery Charger
SUMMARY:
Insert
337A BATTERY CHARGER
into power shelf (battery string 1
and 2 in a 51-type cabinet) or slot on battery shelf (80-type, frame, or battery string 3
in a 51-type cabinet) and press
HIGH RATE CHG/ACTIVATE
button. Measure −42 to
−56 volts at
LDU
(−
48B
/
GND
). Unseat
BATTERY CHARGER
. Repeat for additional
BATTERY CHARGER
s.
1.
NOTE:
In the 51-type cabinet, the
BATTERY CHARGER
s associated with
battery string 1 (lower two battery shelves) and battery string 2 (upper
two battery shelves) are to be installed in power shelf.
BATTERY
CHARGER
for battery string 3 (located in 181A apparatus mounting.
Get one
337A BATTERY CHARGER
and inspect it for possible damage.
2. Verify that fuses on
BATTERY CHARGER
are not blown (Figure 1).
Figure 1 – Location of Fuses on 337A BATTERY CHARGER
HIGH
RATE
CHG
ACTIVATE
BAT DISCHG
CHARGER
BATTERY
OPEN BATT
ON
337A
FUSES
Lucent
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