Rom Checksum Error (Program); Option Rom Error - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.2.43 ROM Checksum Error (Program)

This error is a built-in program ROM fault.
Table 3-46. Troubleshooting for "ROM Checksum Error (Program)"
Step Action and Question
Parts below can be the source of this error
• BOARD ASSY., MAIN
(p.299)
• Standard ROM-DIMM
Checking the standard ROM-DIMM
1. Check to see if the mounted ROM-DIMM is exactly
1
as specified and connected properly. (Remove once
and then install again)
♦
Does the error still occur?
Replace the standard ROM-DIMM
2
1. Replace the Standard ROM-DIMM.
♦
Does the error still occur?
BOARD ASSY., MAIN
3
1. Replace the BOARD ASSY., MAIN.
♦
Does the error still occur?
Note : The Main Board Assy and Memory Board Assy used with EPL-N3000 are as listed
below. The program ROM is mounted on the Memory Board Assy.
For details, refer to "2.7 Operating Principles of Electric Circuitry
Parts Name
BOARD ASSY., MAIN
BOARD ASSY, MEMORY
Troubleshooting
Yes No
(Chapter 4 Disassembly and
Assembly)
Problem
Go to Step 2
solved
Replace the
Go to Step 3 faulty ROM-
DIMM
Go to 3.4.17
Problem
Electrical
solved
Noise (p.127)
(p.61)".
Spec
C553MAIN
C533PROG
Troubleshooting When There is Error Display

3.2.44 Option ROM Error

This error is an optional ROM fault.
Table 3-47. Troubleshooting for "Option ROM Error"
Step Action and Question
Parts below can be the source of this error
• BOARD ASSY., MAIN
(p.299)
• Option ROM-DIMM (PS module/Form overlay)
Checking the option ROM-DIMM
1. Check to see if the mounted ROM-DIMM is exactly
1
as specified and connected properly. (Remove once
and then install again)
♦
Does the error still occur?
Replace the option ROM-DIMM
2
1. Replace the option ROM-DIMM.
♦
Does the error still occur?
BOARD ASSY., MAIN
3
1. Replace the BOARD ASSY., MAIN.
♦
Does the error still occur?
Revision C
Yes No
(Chapter 4 Disassembly and
Assembly)
Problem
Go to Step 2
solved
Replace the
Go to Step 3 faulty ROM-
DIMM
Go to 3.4.17
Problem
Electrical
solved
Noise (p.127)
101
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