Pentax ISTDS Operation Manual - Page 190

188 Problem Cause Remedy The Autofocus does not work The focus mode is set to \. Set the focus mode lever to =. (p.118) AE lock function does not operate AE lock is not available when set to a (manual) mode or p (bulb) mode Set AE lock to setting other than a (manual) mode or p (bulb) mode. Flash does not discharge When flash mode is set to [Auto discharge] or [Auto flash+Redeye reduct], the flash will not discharge when the subject is bright. Set flash mode to [Manual discharge] or [Manl flash+Redeye reduct]. (p.49) Mode dial is set to Set mode dial to setting other than [Flash [Flash OFF] OFF]. (p.47) 6 The power zoom system does not function The camera does not have the power Use manual zoom. (p.48) zoom function. Appendix USB connection with computer does not work properly The transfer mode is set to [PictBridge]. An error occurred while sending USB data. Set transfer mode to [PC]. (p.84) Change the transfer mode to [PC-F]. (p.84) USB connection with printer does not work properly The transfer mode is set to [PC] or [PC-F]. Set transfer mode to [PictBridge]. (p.84) In rare cases, the camera may not operate correctly due to static electricity. This can be remedied by taking the batteries out and putting them back in again. When the mirror remains in the up position, take the batteries out and put them back in again. Then, turn the power on, and turn the power off while pressing the shutter release button. The mirror will retract. After the procedure is done, if the camera operates correctly, it does not require any repairs.