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ESG Family Signal Generators Assembly Replacement
A14 CPU/Motherboard
Service Guide 5-21
CAUTION Damage can occur to the CPU/motherboard if the signal generator remains
turned on for a prolonged period with the jumpers for P104, P105, and P106
positioned incorrectly.
b. Turn the signal generator on, and observe the display.
c. If the display does not show text or characters within five seconds, turn the signal
generator off and move the jumpers for P104, P105, and P106 to the − position.
Repeat the previous step.
5. On the A14 CPU/motherboard, set switch #4 on switch pack S201 to the correct position
for your display:
If P104, P105, and P106 are set to the + position, set switch #4 of S201 to the up (open)
position, away from the CPU/motherboard. (See Figure 5-12.)
If P104, P105, and P106 are set to the − position, set switch #4 of S201 to the down
(closed) position, toward the CPU/motherboard. (See Figure 5-12.)
NOTE Switch #5 of S201 is set to the up (open) position in all circumstances.
NOTE You must reset the signal generator for the switch settings to take effect.