SprintScan 35LE Service Manual
Troubleshooting
27
1. Unplug connector J7 and check the CCD module output signals. Figure 3-4 shows
the pin designations for connector J7.
Note: The signals that drive the CCD module are outputted at connector J7 on the
main PC board.
Figure 3-4. Pin assignment for connector J7
2. Check the CCD output signal at J7, Pin 16. Figure 3-5 shows the correct output
waveform.
Note: If the output waveform is incorrect, replace the CCD module.
Figure 3-5. Preprocessing CCD Output Waveform at J7, Pin 16
OS
AGND
+12V
PHIR~
PHI1A~
DGND
PHI2A~
DOS
AGND
DGND
DGND
DGND
PHIX~
+12V
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
