Image Quality (Guide 4) - Polaroid PDC2000 Repair Manual

PDC 2000/3000 Repair Manual
Problem
Poor Focus:
Note: Before checking focus problems:
• Take a 14" and a 4" picture. Look at distance measured - picture should
be in focus.
• Listen for focus gear movement. Focus gear will not move if lens magnet is
missing or changed position. Camera will not Autofocus without lens magnet.
• Listen for sonar firing.
• Check focus for bushing, erratic curve, etc.
AutoFocus Button •
Distance
Measurement
Incorrect.
Focus Gear
(No Movement)
Focus Gear
(Grinding sound
when trying to
focus)
Guide 4-4. Image Quality
Cause
Set to Off.
• Defective Autofocus.
PC board.
• Defective Sonar
(Transducer )
• Defective Front End PC
board.
• Missing or incorrectly
positioned lens magnet.
• Defective focus motor.
• Damaged focus motor
flex.
• CCD flex hitting focus
gear.
• LCD tab hitting focus
gear.
77
Diagnostics and Troubleshooting
Corrective Action
• Reset Autofocus to On.
• Replace Autofocus
PC board.
• Replace Sonar (Transducer).
• Replace Front End PC board.
• Replace or reposition lens
magnet.
• Replace Optics Module
assembly.
• Replace Optics Module
assembly.
• Reposition CCD flex.
• Reposition LCD tab.