I have a Pentax AF-540 fgz which has suddenly stopped working. I bought it second hand and worked fine and was very happy with its performance. Now, when I turn it on it goes through the start-up OK (i.e. makes charging sound, the back panel lights up, zooms and appears to be fine). However, it does not flash . Also, does not flash when the "test" light is pressed.

I am wondering if it is worth taking it to repairs or shall I cut my losses and get a new one? Has anyone else had any similar problems? Any recommendations for repairers in Melbourne?