363-205-401
Power Up: DLP-519
Issue 7, March 1997
Page 3 of 4
Figure 2 – J1C182BD Power Shelf
4.
Condition DMM to measure DC volts.
5.
Connect DMM test leads to - (1A/mV) and + (VOLTAGE) on the power shelf
(bottom 2 jacks).
6.
Does DMM indicate between
−
54 and
−
55 volts?
If YES, then proceed to Step 12.
If NO, then continue with Step 7.
7.
Condition DMM to measure AC volts.
8.
Operate AC power circuit breaker off and then back on.
9.
Verify AC power is connected to P112 on the side of the power shelf. Check
for presence of 105 to 129 volts AC at TB1 rear of power shelf (pin3 neutral;
pin1
θ
1 RECTs 1, 2, 3; pin4
θ
2 RECTs 4 and 5).
10. Is correct voltage present?
If YES, then proceed to Step 11.
If NO, then refer trouble to installation group.
11. Check wiring on power shelf using SD-7C163-01. Repeat procedure from Step
4 after trouble is found and corrected.
CB2
CB1
ALARM
RECTIFIER
336 A1 PU
ALARM
RECTIFIER
336 A1 PU
CURRENT
(1A/mV)
-
BAT
+
1
(1A/mV)
BOD
BAT
+
NORMAL
AUG4
FAIL
CURRENT
+
RECTIFIER
RECT2
BATTERY
CURRENT
-
BATTERY
+
2
INTERFACE
UNIT
VOLTAGE
FUSES: 30A
125 V
RECT1
BIU
-
ALARM
RECTIFIER
336 A1 PU
+20HZA
+20HZB
-48V
GND
RMN
+20HZ
0.5A
AUG3
RMJ
RING CONTROL
UNIT
RCU
RECT5
336 A1 PU
ALARM
RECTIFIER
336 A1 PU
ALARM
RECT4
RECT3
1
-20HZ
0.5A
2
3
4
GND
-20HZ
FAIL
-48V
3H1
RINGING
GENERATOR
RG
RING GEN1
GND
-20HZ
FAIL
-48V
3H1
RINGING
GENERATOR
RG
RING GEN2
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