Xerox DocuColor 12/DCCS50 Service Manual page 216

A B
Y N
Go to Flag 8 (Flag 18 w/ TAG
If the wires are OK, replace the IOT Drive PWB
There is approximately +4.3 VDC between P/J105-4 on the SSR and GND when
the lamp is off.
Y N
Check for an open wire at pin 4 of P/J105. If OK, replace the SSR
Enter dC330 010-030 Heat Roll Heater Rod On. Press Start. The voltage at
J105-4 decreases to less than +1.0 VDC.
Y N
Replace the IOT Drive PWB
Go to Flag 9 (Flag 19 w/ TAG P31) on BSD 10.2 and check for an open circuit. If the
wires are OK, replace the SSR
Replace the AC Driver PWB (PL 9.3).
Open the drawer. Remove the cheater on the Front Door Interlock. Measure the resistance
across the Heat Roll Heater Rod. The resistance is less than 10 Ohms.
Y N
Replace the Heat Roll Heater Rod (PL
Check the resistance across the Heat Roll Thermostat. The value is less than 10 Ohms.
Y N
Replace the Heat Roll Thermostat (PL
Switch off the power. Disconnect the connectors to the Heat Roll Thermostat, AC Driver PWB,
SSR, and the IOT Drive PWB. Check the connectors for broken, bent, or dirty pins. Discon-
nect, then reconnect, the connectors several times to remove oxidation.
Y N
Go to Flag 10 and Flag 13 on BSD 10.2 and check for an open circuit. If the wires are OK,
replace the AC Driver PWB (PL 9.3). If the problem continues, replace the SSR
If the problem persists, replace the IOT Drive PWB
Switch on the power. There is +5 VDC from
Y N
There is +5 VDC from J73 on the Surge SSR to frame ground
Y N
Go to Flag 28. Check for an open circuit. If the wire is OK, replace the AC Driver
PWB (PL 9.3). If the problem continues, replace the Surge SSR
Go to Flag 30. Check for an open circuit. If the wires and the AC Driver PWB
OK, replace the IOT Drive PWB (PL
Switch off the power. Disconnect P/J70. The resistance from J70-1 to J70-2 is 55 ohms +/-
20%.
Y N
Replace Surge Resistor (PL 9.6).
C
Status Indicator RAPs
OF10-3 Heat Roll AC Power RAP
P31) on BSD 10.2 and check for an open circuit.
(PL 9.2).
(PL
(PL 9.2).
(PL 9.3).
8.3).
8.4).
TAG P31 is present.
(PL 9.2).
J73 to J74 on the Surge SSR.
(PL 9.6).
(PL
9.2).
C
Go to Flag 20, Flag 23, and
OK, replace AC Driver PWB
sists.
If the problem continues, replace the SSR
9.3).
P/
(PL 9.3).
9.3) are
1/05
2-180
manuals4you.com manuals4you.com
Flag 27 on BSD 10.2 and check for an open circuit. If the wires are
(PL 9.3). Replace the Varistor PWB (PL
(PL 9.3), then the IOT Drive PWB
9.6) if the problem per-
(PL 9.2).
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DocuColor 12/DCCS50