Data General NOVA ECLIPSE 6234 Service Manual page 56

Data General Corporation (DGC) has prepared this manual for use by OGC personnel and customers as a guide to the proper installation, operation, and
maintenance of DGC equipment and software. The drawings and specifications contained herein are the property of OGC
and~hall
neither be reproduced in
whole
or
in part Without DGC's prior written approval nor be implied to grant any license to make, use, or sell equipment manufactured in accordance herewith .
TURN POWER OFF.
REMOVE CONNECTORS
J3, J4 ANO J8 FROM
THE AC DISTRIBUTION
PCB SEE FIGURE 4-11.
TURN POWER SWITCH ON.
CHECK THE BRIDGE
RECITIFIER ON THE AC
OtSTRIBUTION PCB.
THE METER SHOULD READ
180 ACROSS EACH
DIODE IN
ONE
DIRECTION
ANO INFINITY IN THE
OPPOSITE DIRECTION.
SEE FIGURE 4-11.
UNPLUG THE LINE
CORDANO SWAP
THE AC DISTRIBUTION
PCB.
(SUBSECTION 5.11).
FS-05833
TURN THE POWER OFF
AND PLUG IN J4 ON
THE AC DISTRIBUTION
PCB.UNPLUG
CONNECTORS J1, J3
J4 AND J9 FROM POWER
SUPPLY PCB AND TURN THE
POWER SWITCH ON. SEE
FIGURE4-8.
TURN POWER OFF.
UNPLUG TRANSFORMER
J1 FROM AC DISTRIBUTION
PCB, FIGURE 4-1 ?;
TURN POWER SWITCH ON.
REPLACE
AC DISTRIBUTION
PCB.
(SUBSECTION 5.11 ).
NO
TURN POWER OFF.
RECONNECT J1 ON THE
AC DISTRIBUTION PCB,
FIGURE 4-12, AND
UNPLUG J5 AND J8
ON THE POWER SUPPLY PCB.
TURN THE POWER ON.
SEE FIGURE 4-8.
REPLACE
TRANSFORMER
(SUBSECTION 5.15).
TURN POWER OFF.
RECONNECT J5 AND J8 ON
THE POWER SUPPLY PCB.
FIGURE4-8.
REPLACE
SPINDLE
MOTOR
(SUBSECTION 5.5).
UNPLUG THE LINE
CORD ANO REPLACE THE
POWER SUPPL YPCB.
(SUBSECTION 5.12).
TURN POWER OFF, AND
RECONNECT J3 AND J4 OF
AC DISTRIBUTION PCB.
TURN THE POWER ON.
FIGURE 4-11.
Figure 4-6.
Fuse Check Flowchart (2 of 3)
015-000133
4-12
•
•
•