2-66
Service Manual
5022-
xxx
Operator panel display
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 5
beeps
, and sticks in a continuous pattern until the printer is turned off.
FRU
Action
1
Operator panel cable
Check for proper installation of the operator panel assembly cable at
system card JOPP1 and at the operator panel assembly. Check
continuity of the operator panel assembly cable. If incorrect, replace
the top cover access assembly. Go to
2
Operator panel display
blank, 5 beeps, LED off
Check for proper installation of the operator panel assembly cable at
system card JOPP1 and at the operator panel assembly. If incorrect,
reinstall the cable properly. If correct, measure the voltage between
JOPP1 pin 2 and ground on the system card. The voltage should
measure approxi5 V dc. If incorrect, replace the system
card. Go to
“System card removal” on page 4-47
. If correct, check
continuity of the operator panel assembly cable. If continuity is
incorrect, replace the top cover access assembly. Go to
cover assembly removal” on page 4-23
. If continuity is correct,
replace the operator panel assembly. Go to
assembly removal” on page 4-22
3
Operator panel display
blank, 5 beeps, LED on
Check for ground between JOPP1 pin 4 and ground. If correct,
replace the operator panel assembly. Go to
assembly removal” on page 4-22
. If incorrect, check the operator
panel assembly cable. If the cable is damaged, replace the top cover
access assembly. Go to
“Top access cover assembly removal” on
. If the cable is okay, replace the system card. Go to
“System card removal” on page 4-47
.
4
Operator panel all
diamonds, no beeps
Communication between the operator panel and the system card has
been interrupted.
• Check the cable that connects operator panel and system card
for visible defects. Ensure pins are fully mounted in the cable
connectors. Check for continuity between the the two cable
connectors. If cable is defective, replace top access cover
assembly. Go to
“Top access cover assembly removal” on
• Top access cover assembly. Go to
• System card. Go to
“System card removal” on page 4-47
.
• Operator panel assembly. Go to
5
Operator panel all
diamonds, 5 beeps
Replace the FRUs in the following order. POR the printer after each
replacement:
• Operator panel assembly. Go to
• System card. Go to
“System card removal” on page 4-47
.
• Top access cover assembly. Go to
Summary of Contents for C520 Series
Page 8: ...viii Service Manual 5022 xxx...
Page 13: ...Laser notices xiii 5022 xxx Japanese Laser Notice...
Page 14: ...xiv Service Manual 5022 xxx Korean Laser Notice...
Page 33: ...General information 1 15 5022 xxx...
Page 132: ...2 74 Service Manual 5022 xxx...
Page 202: ...4 48 Service Manual 5022 xxx 5 Remove eight screws C from system card...
Page 222: ...5 2 Service Manual 5022 xxx 7RQHU SDWFK VHQVRU 736 7RQHU OHYHO VHQVRUV...
Page 223: ...Locations and connectors 5 3 5022 xxx Motors...
Page 224: ...5 4 Service Manual 5022 xxx Printer cards...
Page 226: ...5 6 Service Manual 5022 xxx Parallel system card Legend Jxx connector Fx fuse...
Page 227: ...Locations and connectors 5 7 5022 xxx Wiring diagrams See back of manual...
Page 228: ...5 8 Service Manual 5022 xxx...
Page 230: ...6 2 Service Manual 5022 xxx...
Page 232: ...7 2 Service Manual 5022 xxx Assembly 1 CRUs 5HDU 9LHZ...
Page 234: ...7 4 Service Manual 5022 xxx Assembly 2 Covers...
Page 236: ...7 6 Service Manual 5022 xxx Assembly 3 Front...
Page 238: ...7 8 Service Manual 5022 xxx Assembly 4 Right...
Page 240: ...7 10 Service Manual 5022 xxx Assembly 5 Rear...
Page 242: ...7 12 Service Manual 5022 xxx Assembly 6 Left...
Page 244: ...7 14 Service Manual 5022 xxx Assembly 7 Top...
Page 248: ...7 18 Service Manual 5022 xxx Assembly 9 Cable Parts Packet...
Page 254: ...I 4 Service Manual 5022 xxx...