2-54
Service Manual
5022-xxx
Operator panel display blank, five beeps, LED on
Service tip: The printer has detected a problem with the system card, the operator panel assembly cable (part of
the top cover access assembly), or the operator panel assembly if POST does not complete. The printer emits
five beeps, and sticks in a continuous pattern until the printer is turned off.
Operator panel display all diamonds, no beeps
Operator panel display all diamonds, five beeps
Step
Questions / actions
Yes
No
1
Check for ground between JOPP1 pin 4 and
ground.
Is the voltage approximately 0 V dc?
Replace the operator panel
assembly. See
“Operator
panel assembly removal”
on page 4-23
.
Go to step 2.
2
Check the operator panel assembly cable.
Is the cable damaged?
Replace the top cover
access assembly. See
“Top
access cover assembly
removal—model C52x
only” on page 4-28
or
“Top
access cover assembly
removal—model C53x
only” on page 4-32
.
Replace the system card.
See
“System card
removal” on page 4-92
.
Step
Questions / actions
Yes
No
1
Check the operator panel assembly cable.
Is the cable damaged?
Replace the top access
cover assembly. See
“Top
access cover assembly
removal—model C52x
only” on page 4-28
or
“Top
access cover assembly
removal—model C53x
only” on page 4-32
.
Go to step 2.
2
Measure the voltage between JOPP1 pin 2
and ground on the system card.
Is the voltage approxi5 V dc?
Replace the operator panel
assembly. See
“Operator
panel assembly removal”
on page 4-23
.
Replace the system card.
See
“System card
removal” on page 4-92
.
Step
Questions / actions
Yes
No
1
Check the operator panel assembly cable.
Is the cable damaged?
Replace the top access
cover assembly. See
“Top
access cover assembly
removal—model C52x
only” on page 4-28
or
“Top
access cover assembly
removal—model C53x
only” on page 4-32
.
Go to step 2.
2
Measure the voltage between JOPP1 pin 2
and ground on the system card.
Is the voltage approxi5 V dc?
Replace the operator panel
assembly. See
“Operator
panel assembly removal”
on page 4-23
.
Replace the system card.
See
“System card
removal” on page 4-92
.
Summary of Contents for C52 series
Page 13: ...Laser notices xiii 5022 xxx Japanese Laser Notice ...
Page 14: ...xiv Service Manual 5022 xxx Korean Laser Notice ...
Page 125: ...Diagnostic aids 3 31 5022 xxx ...
Page 150: ...3 56 Service Manual 5022 xxx ...
Page 164: ...4 14 Service Manual 5022 xxx Cover removals ...
Page 177: ...Repair information 4 27 5022 xxx Installation note Be sure the tab B is fully engaged B ...
Page 180: ...4 30 Service Manual 5022 xxx 9 Remove the linkage screw C C ...
Page 184: ...4 34 Service Manual 5022 xxx 10 Remove the linkage screw C C ...
Page 256: ...4 106 Service Manual 5022 xxx ...
Page 257: ...Locations and connectors 5 1 5022 xxx 5 Locations and connectors Locations Covers ...
Page 260: ...5 4 Service Manual 5022 xxx Rear ...
Page 263: ...Locations and connectors 5 7 5022 xxx CRU and FRUs ...
Page 264: ...5 8 Service Manual 5022 xxx Sensors Toner level sensor Toner patch sensor TPS ...
Page 265: ...Locations and connectors 5 9 5022 xxx Motors ...
Page 266: ...5 10 Service Manual 5022 xxx Printer cards ...
Page 267: ...Locations and connectors 5 11 5022 xxx Connectors System card network models C52x ...
Page 268: ...5 12 Service Manual 5022 xxx System card non network models C52x ...
Page 274: ...5 18 Service Manual 5022 xxx System card network models C53x ...
Page 280: ...5 24 Service Manual 5022 xxx ...
Page 282: ...6 2 Service Manual 5022 xxx ...
Page 284: ...7 2 Service Manual 5022 xxx Assembly 1 Covers 15 1 2 3 4 9 5 8 10 12 13 14 6 7 11 ...
Page 286: ...7 4 Service Manual 5022 xxx Assembly 2 Front ...
Page 288: ...7 6 Service Manual 5022 xxx Assembly 3 Right ...
Page 290: ...7 8 Service Manual 5022 xxx Assembly 4 Rear ...
Page 292: ...7 10 Service Manual 5022 xxx Assembly 5 Left 1 2 3 ...
Page 294: ...7 12 Service Manual 5022 xxx Assembly 6 Top 1 2 ...
Page 296: ...7 14 Service Manual 5022 xxx Assembly 7 Customer replaceable units CRUs 3 4 1 2 5 6 2 ...
Page 298: ...7 16 Service Manual 5022 xxx Assembly 8 Contact springs ...
Page 300: ...7 18 Service Manual 5022 xxx Assembly 9 Cable parts packet ...
Page 312: ...I 10 Service Manual 5022 xxx ...
Page 313: ......
Page 314: ......