Samsung DVD/VCR Recorder

Unit dead.
Local repair shop said it's un-econimical to repair.
Admitted they had no service manual.
Said they could 'have a look' but likely repair cost would be over $300. Charged me $50 for quote. Useless Gits.

My opinion & findings.
Power supply sensative to spikes.
I Suggest a power filter in-line with unit.

Disconnected all sub-boards from main.
Hiccuping PSU (5v wobbles between 2&3V).
Replace switchmode IC & feedback IC. No change.
Eventualy identified short-cct diode as listed below.

0402-001194 Diode is a Gen-purpose 200V 2A diode. I used a 1n4007 (1A), so I expect to have to replace it in future. It's "D1S35" located very close to right rear corner of main board, part of 15V and 12V rails. Next time I'll use a 'faster', higher rated diode.
I also had no clock progression. Time could be set but would not advance. Been like that for ages - I thought it was a user clock-setting error. Identified Dead 32.768 khz crystal (XT601).

Hired manual $10 +postage
Non-faulty parts + postage $40
1 diode $1

Satisfaction, plenty.

Hi, Gladrags here again.
The $1 diode blew . I've used a BYX71-600 this time. Using a $20 diode is overkill I know, but that's what was sitting around. The 'front' of the diode package faces the rear of the DVD unit (for those without a ref chart).

TTFN

Hi
The diode part number is SHG2D rated at 200 volts 2 amps, The printed circuit board number for this diode is D1S35, Location: back right hand corner of the printed circuit board, I used a BY299 rated at 800 volts 2 amps, Now working, Hope this helps,
John Porter.

I had the DVD portion of the DVD/VCR combo simply stop dead and the dvd tray would not eject. After talking to Samsung, this is what worked.

1. Turn the power off to the VCR/DVD player (pull the plug out.
2. While the VCR/DVD play is off, press the power button for 30 seconds. They said this was draining power (very strange) and would reset the system
3. When I plugged the player back in and turned on the power, it was functioning perfectly. The tray opened and all was working.