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TROUBLESHOOTING & REPAIR
F-34 F-34
IDEALARC R3R
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POCKET AMPTROL CIRCUIT TEST (continued)
FIGURE F.23 – SENSING RESISTOR R4
R4
SENSING
RESISTOR
FIGURE F.24 – POCKET AMPTROL SIMPLIFIED DRAWING
POCKET
AMPTROL
P.C.
BOARD
CONTROL
P.C.
BOARD
SCR/DIODE
RECTIFIER
BRIDGE
1J7
2J7
3J7
GREEN
YELLOW
GREEN
#201A
#203A
1J
6
2
J6
#218
#219
R4
0.4
OHMS
MACHINE
REMOTE
SWITCH
#77
#76
5J6
4J6 3J6
#75
5J1
SHUNT
POSITIVE
OUTPUT
TERMINAL
NEGATIVE
OUTPUT
TERMINAL
CHOKE
POCKET
AMPTROL
SENSING
ASSEMBLY
POCKET AMPTROL
TRANSFORMER (T3)