Question about Panasonic DMR-E55 DVD Recorder
Turn the player on and all it dose is self check then turns off any way of fixing it or is it nackerd?
This problem occurs when the PSU SCR overheats. Its located on the right hand side of the board. The design of the unit didn't allow for a large enough heat sink on this SCR. So it burns out over time, charing the board and often the components around it.
Replace it (STRG635A) and add a substantial heatsink. A piece of aluminium strip of about 1"x 2" bent over at right angles. Use heat sink compound to mate the surfaces and bolt them together. This will provide more than ample heat sinking.
Depending on the state of the resistors near by you may need to replace them as well.
Note: If you don't know how to solder then get it done as to much heat here will fry the tracks and make the whole thing irrepairable.
Posted on Aug 13, 2009
I had same problem, there iis a resistor 0,47 ohm around STR IC, and i found it's resistance increased, probably due to heating. I just added 1.5 ohm another resistor in parallel with existing 0.47 ohm, and unit work fine..
The voltage developed on this resistor serves as overload information for STR to stop oscillating, for security puposes...
Posted on Jul 08, 2009
I had the same problem with both of my recorders, had extended warranty on them and had them repaired by a service agent. The problem turned out to be a faulty STRG6353A IC chopper (voltage regulator) on both units.
Posted on Jan 24, 2009
Sounds like a faulty diode on the power supply. If you know a bit about electronics then investigate, if not find a competant technician. Good luck.
Posted on Sep 26, 2008
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Posted on Jan 02, 2017
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