Rather than resurrect the original thread I'll just recap my problem and then post CRIS's repair action. CRIS received my K5 on 10/27 and their site reports return shipment on 11/28. That seems to be about average. Haven't received it yet of course but I'm eager to see how it works now. I'm very optimistic as it seems they were quite thorough.
QUOTE "I've had my first K5 since mid-December 2010, it was manufactured on 11/30/2010. I've kept the firmware updated, taken almost 21K pictures, and until recently I've had none of the major problems others have experienced, stains, AF issues, runaway mirrors, buttons falling out, etc, etc. However in the last two weeks I've had some weird battery/power issues. I have two batteries, the Pentax that came with the camera, and a Pearstone compatible bought at the same time as I bought the camera from B&H. Usually I get about 700 shots from the Pearstone and about 500 from the Pentax with a moderate amount of in-camera picture peeping. I've never used video, only tried out live-view, but I have used the High FPS feature several times. Also almost all my shooting is in daylight, very little flash use.
The one minor irritation with my K5 has been the battery level indicator has never been especially reliable. But up until now when the camera stopped shooting, I simply replaced the battery with a fully charged one and pressed on. Recently tho my batteries have given me quite reduced shutter counts per charge. Without warning, the K5 simply refuses to fire, I get a "Battery Depleted" message on the lcd, however the lens will still focus, I can still display shots taken, but the shutter won't fire. The battery indicator still shows a full charge. Removing and relacing the same battery does nothing, and even after switching to a fully charged battery I still get the battery depleted message. The first time I removed all batteries and let the camera sit overnite. The next morning I inserted the fully charged battery from the day before and the camera came up normally. To my surprize all my settings were still intact. This scenario has repeated itself several times now. It happens with either battery. The last time I was able to get the K5 to power back up after an hour and a half, and using the same battery that had been in the camera when it stopped working. Also during this time I experienced my first mirror lockup - which cleared when I R&R'd the battery and I was able to press on. Now while I take a lot of pictures during the day I only use High-rate FPS on occasion. I do rely on AF-C quite a bit tho which has worked pretty well for me." UNQUOTE
CRIS Listed Repair Actions (from their web site)
"REPLACED MAIN PCB/FPC
UPDATED FIRMWARE
PERFORMED SHUTTER OVERRUN MODIFICATION
AFTERMARKET BATTERIES ARE NOT RECOMMENDED FOR USE IN THIS CAMERA AND NOT ARE NOT
SUPPORTED BY PENTAX.
RESET ALL
CLEANED AND CHECKED TO MANUFACTURER'S SPECIFICATIONS"
FYI, while I mentioned in my note to CRIS that I used an aftermarket battery, they did not try to assign any fault in the camera to it. I only ever used the Pentax charger and there was no sign of leakage. My guess is they had seen this problem before and knew the cause/fix. Will add a final note after I get things checked out.
Last edited by geezer52; 11-29-2011 at 10:37 AM.