Power Cable - Data General NOVA 4/S Manual

Data General Corporation (DGC) has prepared this manual for use by DGC personnel and customers as a guide to the proper installation, operation, and
10.
12.
13.
If you have NOT already replaced a fan,
a. Remove the fan module and make sure the cable
connectors to the console PCB boards are seated
securely (see 'Fan and Fan Module Replacement
connectors to the backpanel, the power supply
board, and the VNR unit are seated securely (see
Check the two 15 Amp ac line fuses which screw
into the upper left rear corner of the VNR unit
(see Figure 6.6).
a. If the fuses are all right, replace the fan module.
b. If the fuses are blown:
e Replace them if you have NOT already
replaced them; otherwise,
e If the fans still do not run, replace the VNR
If you cannot get the fans to run after carrying
out steps 9 through 13, replace the internal cable
POWER CABLE VNR UNIT
Figure 6.6 LINE FUSES FOR 16-SLOT CHASSIS
Indicator Light Checkout
2.
Turn the power on.
Check the indicator lights on the front end of the
power supply board (see Figure 6.2). If they are all
out, go to step 3, "Voltage Checkout"; otherwise, turn
the power off and then on again. If any of the lights
turn on again, follow the procedure below for the
lights which are on. Whenever you replace a unit,
repeat this step.
If any light still turns on after you have tried the
procedure below, replace the internal cable (wiring
Memory Disaster Light
. Turn the power off.
a. Reposition the plug.
b. Turn the power on.
to step 3.
Turn the power off.
Remove a memory board.
Turn the power on.