Olivetti d-Color MF4003 Service Manual page 442

d-Color MF4003/MF3303
Relevant electrical parts
Procedure
1. Correct or change the scanner drive (pulley, gear, belt) if it is faulty.
2. Correct the scanner motor set screw if loose.
3. Adjust [Image Position: Leading Edge] and [Sub Scan Zoom Adj.].
4. Check the connector between M9-BASEB CN9E for proper connection and correct as necessary.
5. Check the connector between PS21-BASEB CN8E for proper connection and correct as necessary.
6. Check CPUB for proper installation and correct as necessary.
7. PS21 I/O check, sensor check
• Control signal: BASEB CN8E-6 (ON)
• Location of electrical component: 23-K
8. M9 operation check
• Control signal: BASEB CN9E-1 to 4
• Location of electrical component: 22-K
9. Replace CPUB.
10. BASEB F10E or F16E conduction check.
11. Replace BASEB.
3.12.4 C6704
Contents
Trouble type C6704: Image input time out
Rank C
Trouble detection condition Image data is not input from the scanner to the CPU board (CPUB).
Trouble isolation Scanner
Relevant electrical parts
Procedure
1. Select [Service Mode] -> [State Confirmation] -> [Memory/Storage Adjustment] -> [Memory Bus Check] -> [Scanner -> Memory], and
conduct the memory bus function.
2. Check the connector between IR CIS-BASEB CN6 for proper connection and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. Replace IR CIS.
5. Replace CPUB.
6. Replace BASEB.
3.12.5 C6751
Contents
Trouble type C6751: CCD clamp/gain adjustment failure
Rank B
Trouble detection condition
Trouble isolation Scanner
Relevant electrical parts
Procedure
1. Check the connector between IR CIS-BASEB CN6 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Check for possible extraneous light and correct as necessary.
4. Replace IR CIS.
5. Replace CPUB.
6. Replace BASEB.
3.12.6 C6752
Contents
Trouble type C6752: ASIC clock input error (front side)
Rank C
Trouble detection condition When starting the machine, verification on reading and writing the predetermined value for CPU (image
processing section) on CPU board (CPUB) was conducted, and verification failure was detected.
Trouble isolation Scanner
Relevant electrical parts
Service Manual
• Scanner home sensor (PS21)
• Scanner motor (M9)
• CPU board (CPUB)
• Base board (BASEB)
• CIS module (IR CIS)
• CPU board (CPUB)
• Base board (BASEB)
• The adjustment value is 0 or 255 during a CCD clamp adjustment.
• The peak value of the output data is 64 or less during a CCD gain adjustment.
• CIS module (IR CIS)
• CPU board (CPUB)
• Base board (BASEB)
• CIS module (IR CIS)
• CPU board (CPUB)
• Base board (BASEB)
L TROUBLESHOOTING > 3. TROUBLE CODE
L-44
Y119930-3