78
PDC 2000/3000 Repair Manual
Diagnostics and Troubleshooting
Guide 4-4. Image Quality (Cont’d)
Problem
Cause
Corrective Action
Poor Focus: (Cont’d)
Erratic Focus
•
CCD and Rear Lens
•
Replace Optics Module
binding.
assembly.
•
Front End PC board
•
Reposition Front End PC
incorrectly positioned
board.
(hits red pin).
Sonar (Transducer) •
Shorted to cover.
•
Check to make sure tape is
Does Not Fire
placed on bottom cover
(Figure 2A). If not,
place a small piece of tape
on bottom cover to prevent
transducers connections from
shorting to bottom cover.
•
Defective Sonar
•
Replace Sonar (Transducer).
(Transducer).
•
Defective Front End PC
•
Replace Front End PC board.
board.
Poor Picture Quality:
No Picture - Black
•
Lens cap on lens.
•
Remove lens cap.
•
Damaged or disconnected •
Connect or replace flex
flex (Optics Module to
(Optics Module to Front End
Front End PC board).
PC board).
•
Defective shutter.
•
Replace Optics Module
assembly.
•
Defective Front End PC
•
Replace Front End PC board.
board.
Underexposed
•
Flash Off.
•
Set flash to On (Automatic
Picture
Mode).
•
Picture taken before
•
Allow strobe to fully charge and
strobe fully charged.
then retake picture.
•
Improperly calibrated.
•
Recalibrate using LabView.
