Question about Yamaha DRX-2 DVD Recorder

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Power supply drx-2 total damaged, tea 1507 burned and fet p3nc60 shorted 0 ohm also r3318 (47 ohm) defective.

My solution : replaced ic, fet and also optocoupler and resistor.
But no good result.
5 Vreg is to lo (1.5 V) and 12 Vstby = 10 V. There is also no display and the Fet is going very warm. Only the rec. button on front blinks (weak).
Most all components in live part are checked all good. Secundary fuses and Fet 7302 are all good.
Do you still have any repair idea ?

with kind regards,

Manuel Kessels
e.kessels@planet.nl

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damaged yes... fix yes,, well hopefully,, ok frstly it seems you blew an output IC or a filter.. now i dont have a diagram and basically one isnt needed,, you will need some screw drivers, a soldering iron and some solder..and a multimeter if you have one..

  1. open up the unt (unplug it first)
  2. look at where the speaker's connect you will notice it leads to 4 - 8 huge IC's on heat sinks.. close to the heat sinks are a few capacitors (filters) look at them and pray you find one with an oily surface.. If so remove it by soldering it, take it to the shop and get a new one to solder in place.. and then test the system to make sure it works..
  3. IF not a filter then plug in and turn on the unit.. touch every one of the 4 -8 ic's to see which get HOT!!!!!! very hot,, that one is blown (actually will be more than one) again unsolder them,, get replacements and reassemble..
  4. turn on and enjoy!!..


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