15-2
94MS42 Rev.B1 S/W Ver 2.06
Shutter Rotation Fault Tree
Front View of Control Board
PC Board to terminal strip
Repair or replace wiring from
PC Board
Replace
No
Yes
Board
connector on PC
2 and 4 at power
120VAC at pins
lit, check for
If LED #D17 is
tree
No Strike Fault
lit. Go to the
the lamp being
exposure w/o
not open for an
The shutter will
shutter motor
terminal strip to
wiring from
Repair or replace
motor
shutter
Replace
No
Yes
shutter motor
120VAC at
Check for
No
Yes
shutter should be rotating
on the terminal strip when
120VAC on #4 white and #6 red
When LED #D17 is lit, check for
No
Yes
on PC Board
Is LED #D17 lit
No
Yes
Is the lamp lit?
shutter motor
Possible faulty
and air tubes
replace bearings
motor and or
Adjust shutter
No
Yes
switch
shutter position
gear and the
on shutter motor
Check set screw
worn
sufficiently
bearing surface
likely too tight or
Chain most
No
Yes
rotation?
to bind during
Does shutter seem
Yes
No
time?
rotate at any
Does shutter
Triacs & Relay
TR105
Lamp head fans
Unit Power
Main Contactor
High Relay
Medium Relay
Shutter Motor
K1
TR101
TR102
TR103
TR104
Front View of Control Board
J1
F1
P1
K1
P2
F1
64MV407V
REV.
32TRN02
120K
22K
8.2K
470K
2
64MV504V
REV.
U104
COIL1
L
K
M
J
I
H
G
D
C
B
U101
A
E
U103
R101
F
C103
R110
R107
R102
R111
C102
R105
R112
R109
C104
R108
R103
C101
HS101
TR101
R106
U102
R104
COIL2
TR102
TR103
TR104
TR105
U8
U9
U6
R11
R9
R59
R50
R10
Summary of Contents for AP42CL 8000
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