TM 5-6675-319-14
(1) Primary power is applied from the constant-voltage transformer to P101
and fuse F101 to MASTER POWER switch S112 and elapsed time meter HM101. When MASTER
POWER switch S112 is closed, it provides power to the LIFTER POWER switch S114.
LIFTER POWER switch S114 provides power to the RPT and is protected by fuse F201.
TRANSPORT POWER switch S113 provides power to the APL and is protected by F301.
Primary power is also applied through negative carrier hood switch S111 to NEGATIVE
CARRIER power switch S115.
When the NEGATIVE CARRIER power switch is placed to the
ON position, rectifier CR101 provides voltage to solenoids RS101 on the filter
assembly and RS102 on the negative carrier located on the lens box assembly. The
constant-voltage transformer maintains a constant 120 V, 60 Hz to the equipment,
regardless of main power voltage fluctuation.
(2) Primary power is applied to SAFE/WHITE VIEW LIGHTS switch S116, dimmer
on/off control S117, SAFE VIEW LIGHTS DIM control R112 and view light assembly
consisting of DS101 and DS102.
When orthochromatic emulsions are used, SAFE/WHITE
VIEW LIGHTS switch is set to SAFE, dimmer control on and SAFE VIEW LIGHTS DIM
control R112 is used to adjust the intensity of the safe light.
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