Question about Panasonic DMR-E55 DVD Recorder
The machine is 2.5 years old & in the last month or so it has started to not recognise all discs. Upon putting in the majority of discs (RAM or normal films) it seems to 'self check' & 'read' over & over again, then shuts down, then repeats the process over again. When this happens I can't eject the disc & even unplugging the machine won't work. It all started when I tried to record & it kept turning off the record mode within a few minutes. Every now & then it will play a disc perfectly but more often than not it doesn't. When it is 'self checking' & 'reading' it seems to make a werring noise.
It has not been used greatly in the time I have owned it. Any ideas?
The heat is caused by IC001 which is a regulator that is mounted on a completely inadequate heatsink on the power board. This component gets very hot during normal operation.
The regulator will usually last a couple of years, depending on how often the machine is used and then start playing up. The symptoms are intermittent operation, continuous self checking and rebooting, not being able to read discs and so on.
Eventually the component can short-circuit, burn out and take other components with it. The on-board fan is thermostatically controlled. It does not operate all the time, only when the unit gets hot enough. By using an external fan, you are keeping the unit cool enough for its own fan never to cut in. The additional cooling is probably squeezing a bit more life out of the regulator and is stopping its own fan from operating.
I have repaired lots of these and have never found a faulty fan, or fan switching fault. There's always a first time of course.
It is more likely that the regulator IC001 is faulty and if you are technically skilled, I would suggest you seriously consider replacing it. Use some heatsink compound and an extra heatsink, and it will probably do the trick. The regulator is an STRG6353. You can get these easily online from a number of outlets. Don't attempt a repair if you are unsure of what you are doing. Regards..
Posted on Jan 17, 2008
Its definitely the SCR STRG35353A. I replaced it (not cheap) and put a 1"x2" heat sink on it. no problems any more. FIXED!
Posted on Aug 13, 2009
Unfortunately, it sounds as if at the very least, the laser assembly needs cleaned and aligned or even replaced. The symptoms you describe are exactly what you would experience for this error....accordianman
Posted on Nov 19, 2007
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Posted on Jan 02, 2017
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