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