The STRG6353 is a chunky integrated circuit used in the switch mode power supply (SMPS) circuit. It is a " QUASI-RESONANT FLYBACK SWITCHING REGULATOR" used for the high frequency 300VDC switching.
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IC1 in the power supply is the most likely possible cause, affecting the main voltage rail (should be about +12V). Using an oscilloscope, check this device, see if the voltage varies or is low, and order a replacement component (prefix STR or similar). It might also be a good idea to upgrade the firmware (but only do this by obtaining the correct version from Panasonic for your model). Check for bad solder joints in the PSU too, just to be safe.
It sounds like the main CPU is toast!....Time to throw it away if it is doing all random things and will not respond to commands from buttons or remote than it is considered dead...
sorry i could be of much help,ben
Open case and look for failed capacitors, which are cylindrical and will have a bulging top and a yellow/gold substance leaking out. If this is the problem, search for previous solutions that mention "solder capacitor C1260" for the DMR-E85. I had a similar 'no power' problem with my DMR-E55 and my son and I were able to fix it Sunday. Not hard to do and mine is working again!
I had same problem. I replaced two bad capacitors on the power supply
card. See http://vassfamily.net/projects/DMRE85H/dmre85h.html The
capacitors I replaced were C1260 and C1261 slightly different from the
one on "vassfamily.net". Everything works now for me...
Good luck.
Also
for those interested, I found the "commands" listed on
http://www.dxcc.com/dmr-e85h.htm useful when operating the DMR-e85h to
correct problems.
You need to replace the STR-G6353 voltage regulator on the power supply board.
Full proceedure with photos at this link:
http://www.rbjtech.net/electrical/e85/e85.htm#0
I did this on my DMR-E85H and it now works like new.
Tarlach.
I had similar trouble & searched web & found answer. Caused by PSU (power supply unit) overheating. IC STR-G6353 was problem. Panasonic repair agent wanted $60 Aust. for one but found in electronic spare parts shop & cost $11 Aust. I replaced it myself & now works like new. Pls go to web site http://www.avforums.com/forums/showthread.php?t=316972&page=9
This will show the problem & how to fix. regards [email protected]
i check the fuse it was not my recorder is still without power
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