Canon imagePRESS Server G250 V2, Service Manual

Page: 76 / 99

■ On-site checkout
The most common cause of a hardware problem is a faulty or loose connection. Before you replace a costly component, check
the connections between the printer and the
imagePRESS Server first, and then check the connections between each
imagePRESS Server component.
For more information, see the following topics:
• “imagePRESS Server connector panel and LED diagnostic codest” on page 17
• “Checking imagePRESS Server internal connections” on page 19
For more information about servicing and troubleshooting problems with the printer, see the documentation that accompanies
the printer.
■ Symptoms and solutions
For various problems and possible actions, see the following table. To learn possible causes and solutions for a specific error
condition, find the symptom in the charts and perform the appropriate suggested actions in the order listed in the numbered steps.
Verify functionality after each numbered step. Proceed to the next numbered step only if the problem persists. For example, in
the steps:
1. Check and reseat the printer interface cable.
2. Replace the printer interface cable.
Perform step 1, and then verify functionality. If the problem is resolved, do not perform step 2.
Symptom Possible cause Suggested action
LED codes
NOTE:
If the imagePRESS Server is turned on and hanging on a diagnostic code, first perform the following actions to see if they fix the
problem:
1. Press the power switch to set to the OFF (0) position.
2. Wait another 30 seconds.
3. Turn on the
imagePRESS Server using the power switch.
4. Wait approximately five minutes to see if the imagePRESS Server reaches Idle.
5. If the problem persists, make sure that you have reseated internal cable connections and verified system components.
6. If the problem persists, see the code/symptom and suggested actions in the following pages.
00 When the
imagePRESS Server
is Idle and
in Operational mode, the LED display shows
00.
If the LED display shows 00, but the system
is not functioning properly, one or more of
the following may be the cause of the prob-
lem:
• Faulty connection between the
image-
PRESS Server
and the printer
• Service switches are set to an incorrect
mode
• Improper service board cable connec-
tion
• Corrupted system software
• Missing, faulty, or dead battery
• Corrupted BIOS settings on the moth-
erboard
• Missing or faulty chassis fan
• Faulty CPU and/or CPU cooling assem-
bly
• Faulty HDD or HDD connection
• Faulty motherboard
1. Check and reseat all cable connections between the
image-
PRESS Server
and printer.
2. Make sure that the
imagePRESS Server
service switches are
set to OFF (both away from ON).
3. If the server date/time cannot be set or responds slowly, re-
place the battery on the motherboard, and then update the
date/time in Server Setup.
4. Shut down and open the
imagePRESS Server
, and do the fol-
lowing:
Reseat the power and data cables to the HDD. Make sure that
the data cable is connected to the proper connector on the
motherboard.
5. Reinstall the system software.
6. If no airflow or fan noise is evident at the vent holes of the
chassis where the chassis fan is located, replace the chassis
fan.
7. Replace the external cables, one at a time.
8. Check and reseat the CPU cooling assembly.
9. Replace the CPU cooling assembly.
10. Replace the CPU.
11. Replace the HDD data cable.
12. Replace the HDD.
13. Replace the motherboard.
A7, A8 Possibly one of the following:
• Faulty motherboard
• Faulty or missing CPU
1. Replace the motherboard.
2. Replace the CPU.
3b, 50, 52, E1 Possibly one of the following:
• Missing or faulty DIMM
• Faulty motherboard
Replace the motherboard.
5. TROUBLESHOOTING
70