GE Industrial Solutions GPS 4848_100 Users Guide (dual rectifier shelf) - Manual (Page 105)

Galaxy Power System 4848/100 with Dual Rectifier Shelf
Issue 5 September 2011 Troubleshooting Millennium Systems 13 - 7
CTRL MAJ Controller Fail -- •BSH failure
•BSJ failure
•Option board
failure 
•Display failure
•BIC failure
Check the option boards
(modem and data switch) to
see if the green LED is
extinguished and the yellow
LED is lit. If so, perform
the following steps:
1. Press the SW201 reset
switch on the top of the
BSJ board. (This circuit
has an automatic restart,
which will try three
times to restart the
microprocessor.) If the
BSJ is not present, press
the reset switch on the
top of the BSH board.
2. If the diagnostics did not
pass, or if the problem
recurs, replace the failed
option board.
CTRL MAJ Controller Fail -- •BSH failure
•BSJ failure
•Option board
failure
•Display failure 
•BIC failure
If the front panel LCD
module, LEDs, or switches
fail, perform the following
steps:
1. Verify that the ribbon
cable from the BSH
board to the display is
not cut, abraded, or
otherwise mangled.
Replace the cable if
damaged.
2. Press SW200 to reset the
BSH board.
3. If the LCD module is
still not operating,
replace the LCD module;
if the switches and LEDs
are still not operating,
replace the BSH board.
Table 13-C: Controller Alarms (Continued)
(See Figures 12-2 and 12-3)
Controller
LED
Controller
Alarm
Status
Millennium
Controller Display
Other
Indication(s)
Possible Problem(s) Possible Solution(s)