5-28 94MS20 Rev. B4
Old Style (64MV210A) Control Board Layout
Although there are very few old boards in the field, there are some,
therefore we must address them also. To determine if you have an old
board, look at the serial number. For the AL 25 the serial number is 2550
and below. For the AL 50, the serial number is 5400 and below. For the
AL 53 the serial number is 7100 and below. If your control board has a
serial number below those just stated, you have an older board.
Note: This pertains only to the models mentioned, and no others.
14------------------------1
Lamp Signal
Connector
LED's
1
2
3 4
Low Expose
Control Board connector pins and pin signals.
14 Pin Power Connector
1 AC Hot 8 Shutter Switch DC Common
2 AC Common 9 Optical Coupler
3 Lamp Fans 10 Shutter +12VDC
4 Shutter Motor 11 Power Supply Blower
5 High Relay 12 External Expose High/Low
6 Power Switch 13 External Expose Return
7 High/Low Switch 14 Manual Expose Switch
Control Board LEDs.
LED's
1 Lamp Fans
2 Shutter Motor
3 High/Low Relay
4 Power Relay
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