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Service Manual
7526
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Operator panel display blank, five
beeps
, and LED is off
Service tip: The printer has detected a problem with the system board, 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 then sticks in a continuous pattern until the printer is turned off.
Operator panel display blank, five
beeps
, LED on
Service tip: The printer has detected a problem with the system board, 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 then sticks in a continuous pattern until the printer is turned off.
Operator panel display all diamonds, no
beeps
Step
Questions / actions
Yes
No
1
Is the operator panel assembly cable properly
installed at system board JOPP1 and at the
operator panel assembly?
Go to step 2.
Reinstall the cable.
2
Measure the voltage between JOPP1 pin 2
and ground on the system board.
Is the voltage approxi5 V dc?
Go to step 3.
Replace the system board.
3
Check continuity of the operator panel
assembly cable.
Is there continuity?
Replace the operator panel
assembly. See
panel assembly removal”
on page 4-26
.
Replace the top cover
access assembly. See
“Top access cover
assembly removal” on
page 4-43
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
panel assembly removal”
on page 4-26
.
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” on
page 4-43
.
Replace the system board.
Step
Questions / actions
Yes
No
1
Check the operator panel assembly cable.
Is the cable damaged?
Replace the top access
cover assembly. See
access cover assembly
removal” on page 4-43
.
Go to step 2.
2
Measure the voltage between JOPP1 pin 2
and ground on the system board.
Is the voltage approxi5 V dc?
Replace the operator panel
assembly. See
panel assembly removal”
on page 4-26
.
Replace the system board.
Содержание X734DE
Страница 10: ...x Service Manual 7526 Go Back Previous Next...
Страница 15: ...Notices and safety information xv 7526 Go Back Previous Next...
Страница 16: ...xvi Service Manual 7526 Go Back Previous Next...
Страница 22: ...xxii Service Manual 7526 Go Back Previous Next...
Страница 254: ...3 58 Service Manual 7526 Go Back Previous Next Printer base...
Страница 266: ...3 70 Service Manual 7526 Go Back Previous Next...
Страница 277: ...Repair information 4 11 7526 Go Back Previous Next d Touch Quick Test A page similar to this one prints...
Страница 293: ...Repair information 4 27 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 300: ...4 34 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 316: ...4 50 Service Manual 7526 Go Back Previous Next 7 Remove the six screws G 8 Remove the screw H in front...
Страница 324: ...4 58 Service Manual 7526 Go Back Previous Next 6 Grasp the auger shaft C and remove it C...
Страница 328: ...4 62 Service Manual 7526 Go Back Previous Next 5 Remove the two screws C 6 Remove the cartridge cooling fan C...
Страница 359: ...Repair information 4 93 7526 Go Back Previous Next 14 Remove the two screws O on the inside O P...
Страница 360: ...4 94 Service Manual 7526 Go Back Previous Next 15 Remove the seven screws R securing the EP drive R R First R R...
Страница 398: ...4 132 Service Manual 7526 Go Back Previous Next 3 Insert the motor into the frame 4 Replace the screws C...
Страница 422: ...4 156 Service Manual 7526 Go Back Previous Next f Touch Quick Test A page similar to this one prints...
Страница 464: ...4 198 Service Manual 7526 Go Back Previous Next 4 Remove the five larger screws B and the two smaller screws C...
Страница 482: ...4 216 Service Manual 7526 Go Back Previous Next 9 Remove the two screws G G 18B1236...
Страница 495: ...Repair information 4 229 7526 Go Back Previous Next 5 Lift the cover from the ADF...
Страница 513: ...Repair information 4 247 7526 Go Back Previous Next 5 Grasp the cover on the lower right and pull up...
Страница 571: ...Connector locations 5 1 7526 Go Back Previous Next 5 Connector locations Locations printer base...
Страница 572: ...5 2 Service Manual 7526 Go Back Previous Next Connectors System board...
Страница 582: ...5 12 Service Manual 7526 Go Back Previous Next...
Страница 588: ...6 6 Service Manual 7526 Go Back Previous Next...
Страница 592: ...7 4 Service Manual 7526 Go Back Previous Next Assembly 2 Front 5 2 3 4 7 9 11 A B D 8 10 12 E 13 C G F F 1 6...
Страница 594: ...7 6 Service Manual 7526 Go Back Previous Next Assembly 3 Right 1 2 3 4 5 6...
Страница 596: ...7 8 Service Manual 7526 Go Back Previous Next Assembly 4 Rear...
Страница 602: ...7 14 Service Manual 7526 Go Back Previous Next Assembly 8 Covers scanner 6 8 9 10 5 7 11 14 1 2 13 3 4 12...
Страница 604: ...7 16 Service Manual 7526 Go Back Previous Next Assembly 9 Automatic document feeder ADF...
Страница 606: ...7 18 Service Manual 7526 Go Back Previous Next Assembly 10 Flatbed scanner...
Страница 612: ...7 24 Service Manual 7526 Go Back Previous Next Assembly 14 Options and features...
Страница 614: ...7 26 Service Manual 7526 Go Back Previous Next...
Страница 622: ...I 8 Service Manual 7526 Go Back Previous Next...
Страница 626: ...I 12 Service Manual 7526 Go Back Previous Next...