Service and Maintenance Instructions
The following procedures are designed to assist in the isolation
of malfunctions. The operations described should be undertaken
only after an investigation of all external connections and adjust-
ments has indicated, beyond reasonable doubt, that the problem
is actually internal.
W A R N I N G : Disconnect the 7130 from the power source
before performing service operations or replacing
components.
Voltage Conversion
The 7130 can be operated from either 120 V A C or 240 V A C ,
50/60 Hz source. The line voltage selector, a Molex commoning
connector, Figure 7, changes the primary connections of the
power transformer. Use the following procedure to change the
voltage range:
M O L E X
COMMONING
C O N N E C T O R
WARNING
T H I S S E C T I O N O F T H E M A N U A L
C O N T A I N S S E R V I C E I N S T R U C T I O N S
F O R U S E B Y Q U A L I F I E D S E R V I C E
P E R S O N N E L O N L Y .
1. Remove the four screws which hold the top cover to the
chassis.
2. To convert from 120 V A C to 240 V A C , remove only the
following wires, shown in Figure 8 and Table 2:
3. Remove the frosted spacers from the commoning connec-
tor, spaces 7 and 8.
4. Insert the two colored coded wires removed from step 2,
Table 2 and insert them per Figure 9, Table 3:
WHT
(Power SW-S1
a
)
B L K / W H T
(Power SW-S1
a
)
B L K / W H T
(Power Xfmr)
S P A C E R
BRN/WHT
(Power Xfmr)
Y E L
(Power SW-S 1b)
S P A C E R
B L K
(Power Cord)
GRN
(Power Xfmr)
S P A C E R
WHT
(Power Cord)
. S P A C E R
B L K
(Power Xfmr)
S P A C E R
BRN
(Power Xfmr)
S P A C E R
Y E L
(Power Xfmr)
B L K
(Power SW-S 1b)
S P A C E R
G R N
(Vu meter)
F I G U R E 8
F I G U R E 7
7