Canon PowerShot Pro 90 IS User Guide

124   

Appendices

Power is not turned on

Battery cover or CF card slot 
cover is open

Insufficient battery voltage 
([Lb] flashes in display panel)

Poor contact between 
camera and battery 
terminals

Main dial is set to         ,       
      or  

Flash is charging
  

CF card full

CF card not formatted 
correctly

Battery pack capacity 
reduced because of disuse 
for one year or more

Battery life exceeded

• Turn the main dial to a position other than       .

• Confirm that the battery cover is securely closed.
• Confirm that the CF card slot cover is securely closed.

• Fully charge the battery or use a household power 

source.

• Wipe the terminals with a clean, dry cloth.

• Turn the main dial to       (Shooting).

• Wait until the    displays, indicating that the flash is 

charged, before pressing the shutter button.

• Insert a new CF card.
• If required, download the images to a computer and 

erase them from the CF card to make space.

• Format CF card. ➜ See Formatting a CF card (p. 93)
• If reformatting doesn't work, the CF card logic circuits 

may be damaged. Contact the nearest Canon 
Customer Support Help Desk. 

• Replace the battery pack with a new one.

Camera will 
not operate

Camera will 
not record

Battery pack 
consumed 
quickly