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The CCD PC Board (337) is factory adjusted using special precision equipment and normally should not be replaced in the field. It 
is recommended that the entire Scanner Block (321) be replaced. This will insure that the CCD PC Board (337) is aligned 
properly.
If the CCD PC Board (337) is replaced, it can temporarily be aligned by following the procedure given below.
Note: The picture quality may not be the same as a unit that has been factory set.

• TOOLS REQUIRED

1. A 2 channel Oscilloscope
2. CCD Test Pattern

a copy can be made from the pattern shown in the Appendix. It must be reproduced to the same size as the sample 
pattern in the Appendix (1:1 ratio).

• PROCEDURE

1. Remove Covers (see chapter 2).
2. Remove the Transmitter Unit with the Control Panel Assembly (see Section 2.4).
3. Position the CCD Test Pattern as follows.

a. Remove the Scanning Glass (308).
b. Using scotch tape, position the CCD Test Pattern on the Scanning Glass (308) as shown below. The CCD Test 

Pattern must be faced down and centered on the Scanning Glass (308).

c. Set the Scanning Glass (308) with the CCD Test Pattern.

4. Connecting the Oscilloscope

• Carefully solder 2 probe wires to the components shown below on the SCA / SCB PC Board as shown below.

a. CN7 pin 4 (Trigger)
b. CN7 pin 8 (CCD out)

Tape

Printed side

Aligh the edge

CCD Test Pattern

Tape

Scanning glass

Scanning glass

B

CCD Test Pattern

2  A=B

A

Frame Ground

CH1

CPU

SCA / SCB

CN7 - 8

CN7 - 4

CH2

TRG

G

Oscilloscope

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5. Adjusting the CCD PC Board

a. Enter Service Mode No. 5-1 (see Section 5.5.1 [CCD Test]).
b. Monitoring the Oscilloscope, carefully adjust the position of the CCD Board until the output is obtained as shown 

below. Make sure that the ADF Door is closed.

c. Carefully tighten both mounting screws on the CCD PC Board.

6. Disconnect the Oscilloscope and reassemble the machine.
7. Run a test in Copy Mode to ensure the until is working properly.

Approx.
300mv

CCD out

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START

Plug the Power Cord in to turn 
ON the unit.

Does the LCD display function
correctly?

Does the original document feed
through correctly?

Does the recording paper exit the
unit?

Troubleshoot printed copy quality
problems (Sect. 4.4).

Troubleshoot the Document
Feeder (Sect. 4.5).

Check for recording paper path
problems.

Troubleshoot Improper LCD
Display (Sect. 4.2).

Troubleshoot any 3-digit
INFO. CODE displayed
(Sect. 4.3).

Does  the unit produce normal
copies?

Troubleshoot communication

problems (transmission, reception,

dialing, polling, information codes,

or diagnostic codes.) (Sect. 4.6-4.8)

Does the unit power up normally?

Yes

Yes

Yes

Yes

No

No

No

No

Yes

No