KEPCO Kit 219-0540, BOP 1000W Troubleshooting Kit - Manual (Page 2)

2
228-1669 110708
KEPCO, INC. " 131-38 SANFORD AVENUE " FLUSHING, NY. 11355 U.S.A. " TEL (718) 461-7000 " FAX (718) 767-1102
http://www.kepcopower.com " email: [email protected]
5. Position fan A2B1 within chassis at 45° angle to cool A2 heatsink assembly which has been removed from the
chassis (see Figure 2) as well as the power resistors on A4A8. Air direction must be towards A2.
6. Connect A2 (output module) power wires: black to A4A8J2M and red to A4A8J4M. Connect the wire from A2
terminated in a spade lug to A4A8J5 (see Figure 2).
FIGURE 2. POWER AND FAN CONNECTIONS
NOTE: For debugging purposes, instead of supplying the A2 module with internal d-c input power, an external DC
supply (10V/5A d-c minimum) can be used instead. Disconnect red power wire from A4A8J4M and con-
nect to +output of external DC supply. Then connect – output of DC supply to A4A8J2M.
7. Reinstall ribbon cable from A6A1 to A1 connector A1J2.
8. If troubleshooting requires access to A2A4 proceed to step 9. Otherwise, install A2A4/A2A5 stack on A2A1 fol-
lowing the reassembly notes from the applicable BOP 1000W Service Manual.
a. Refer to Figure 3 and connect the cable from A1J1 to J1 header of PCB connector assembly P/N 236-2744
(from Kit).
b. Install ribbon cable P/N 118-1217 from J2 header of PCB connector assembly P/N 2362744 (from Kit) to
A2A5J5.
9. Separate A2A4/A2A5 stack. Then install A2A4 on A2A1 following the reassembly notes from the applicable
BOP 1000W Service Manual.
a. Refer to Figure 4 and connect the cable from A1J1 to J1 header of PCB connector assembly 2362750
(from Kit).
b. Install pins of A2A5P5 into J2 socket of PCB connector assembly 236-2750 (from Kit).
c. Install ribbon cable P/N 118-1217 from A2A5J5 to J1 header of PCB connector assembly 2362744 (from
Kit).
d. Install pins of J1 header of PCB connector assembly 236-2744 (from Kit) into J5 socket of A2A4.