03/2003
2-9
8850/ 510DP
LL-25 Charge Voltage V HIGH
Status Indicator RAPs
LL-25 Charge Voltage V HIGH
This fault will occur if the charge voltage, V high, exceeds -580 volts. This generally is a result
of the Erase Lamp being off, the Drum is not grounded the ESV 1 probe is not working, or there
is an open circuit in the Grid on the Charge Scorotron.
Initial Actions
Refer to ADJ 9.2 and perform [0904].
Procedure
Enter [0966] and visually check that the Erase Lamp is on. The Erase Lamp is on.
YN
Refer to BSD 9.6 and trouble shoot the Charge Erase circuitry.
Check the Drum ground for damage and contamination or an open or short circuit to ground.
There is a short or open or drum ground is damage or contaminated.
YN
Examine the Electrometer Probe (ESV 1) and the Probe Harness for damage, connectors
not fully connected (BSD 9.1). There is damage to the Probe and/or Harness.
YN
Check for an open in the Charge Scorotron Grid circuit (BSD 9.1).
Replace the Electrometer Probe and PWB (PL 9.9).
Clean/Repair the drum ground.
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