Acdist Board (Bm, Bmc) - Hitachi 902 Service Manual

10.8

ACDIST Board (BM, BMC)

(1) Explanation of Circuit Board
This circuit board adapts the AC circuit part at the secondary side of the transformer and
mounts alarm fuses and SSRs.
The board also mounts an AC-DC converter for relay operation because the relay on the
board is used in place of the breaker for operation (turning on/off power supply to other
than cooling unit) which was formerly arranged at the front of the instrument.
(2) External View
(150)
AC-DC converter
10 - 43
Relay for power on/off
(190)
SSR