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TROUBLESHOOTING & REPAIR
F-14 F-14
IDEALARC DC-655
ELECTRIC SHOCK can kill.
• Do not touch electrically hot
parts.
TEST PROCEDURE
1. With the correct input power applied to the
DC-655 and the trigger circuit activated,
LED 10 on the firing board should be lit.
See Figure F.1. If LED 10 lights when the
trigger is activated, the wiring and circuitry
to the firing board is good. Perform the
Firing Board Test and see the Control
Board LED Chart. See the Simplified
Trigger Diagram.
NOTE: LED 10 should not be lit if the trigger
circuit is not activated.
2. If LED 10 does not light when the trigger cir-
cuit is activated, proceed with the following
voltage and continuity checks.
3. Check the 10 Amp circuit breaker. It is the
one closest to the 115V duplex receptacle.
Reset if tripped.
WARNING
FIRING BOARD
G2699-[ ]
LED7 LED8 LED9
LED1
LED2
LED3
LED4
LED5
LED6
LED10
J5
J6
J7
J4
FIGURE F.1 – FIRING BOARD TRIGGER CIRCUIT TEST POINTS AND LEDS
INTERNAL TRIGGER CIRCUIT TEST (continued)
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9