Service Manual 3-53
37,049.40:
Power supply -12 volt over limit. Power supply -12 volt over limit.
37,050.41:
Power supply -12 volt under limit. Power supply -12 volt under limit.
37,051.42:
Power supply current over limit. Power supply current over limit.
37,052.43:
Power supply current under limit. Power supply current under limit.
37,053.44:
Power supply +50 volt over limit. Power supply +50 volt over limit.
37,054.45:
Power supply +50 volt under limit. Power supply +50 volt under limit.
37,055.46:
Power supply -50 volt over limit. Power supply -50 volt over limit.
37,056.47:
Power supply -50 volt under limit. Power supply -50 volt under limit.
37,057.48:
Power supply +15 volt over limit. Power supply +15 volt over limit.
37,058.40:
Power supply +15 volt under limit. Power supply +15 volt under limit.
37,059.41:
Power supply -15 volt over limit. Power supply -15 volt over limit.
37,060.42:
Power supply -15 volt under limit. Power supply -15 volt under limit.
37,061.43:
Power supply high switch will not
activate. 12, 15, and 50 volt missing.
This may be due to a short or
disconnected power supply reset line.
Power supply +5 volt over limit.
37,062.44:
Vss measurement too low. The
printhead power cable may be
disconnected.
Power supply +5 volt under limit.
37,063.45:
Vpp measurement too low. The
printhead power cable may be
disconnected.
Power supply high switch will not
activate. 12, 15, and 50 volt missing.
This may be due to a short or
disconnected power supply reset line.
37,064.46:
Vss measurement too low. The
printhead power cable may be
disconnected.
37,065.47:
Vpp measurement too low, head
power cable may be disconnected.
Wave amp drive cable may be
damaged or disconnected at head
driver board or wave amp board.
37,066.48:
The wave amp appears to be
shorted. It is drawing to much power.
Check for bad wave amp drive cable
(lifted ends of conductors).
8400 PEST Description 8500/8550 PEST description
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