RCA VCR power supply cross ref parts help VR604HF

[George]

I am using a VR510 power supply out of my bedroom VCR in my VR604HF
I can't find specs or cross ref on these parts

VR604HF RCA power supply
4N3DL200 Diodes 3 lead board shows anode and cathode don't know
what third lead is for both show shorted

C5039F 447 3 lead

40240 2 lead diode some show shorted

Display started to fade, then would work OK, hit play button and
display would fade and blink, now dead. fuse OK

I have removed and checked all electrolytics
Any advice appreciated
Thanks

 

[Mark D. Zacharias]

Don't know how you checked the caps, but the caps on the secondary side are
still the leading suspects. Replace also the 22uF bipolar and the 4.7 250v
on the primary side.

Mark Z.

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"George" <nospamgem56@earthlink.net> wrote in message
news:j8ne10l0mk8fm562dctlm94uvb908h9a13@4ax.com...

I am using a VR510 power supply out of my bedroom VCR in my VR604HF
I can't find specs or cross ref on these parts

VR604HF RCA power supply
4N3DL200 Diodes 3 lead board shows anode and cathode don't know
what third lead is for both show shorted

C5039F 447 3 lead

40240 2 lead diode some show shorted

Display started to fade, then would work OK, hit play button and
display would fade and blink, now dead. fuse OK

I have removed and checked all electrolytics
Any advice appreciated
Thanks

 

[George]

Just checek them with the old analog meter on the 10x ohm. Will go
ahead and replace as many I can find replacements for.
Thanks






On Wed, 28 Jan 2004 05:55:14 -0600, "Mark D. Zacharias"
<mzacharias@yis.us> wrote:

Don't know how you checked the caps, but the caps on the secondary side are
still the leading suspects. Replace also the 22uF bipolar and the 4.7 250v
on the primary side.

Mark Z.

 

[Mark D. Zacharias]

Yeah, ohmmeter checks are inadequate here. An ESR meter is needed as well.
In a functioning supply, an oscilloscope can be used to view the noise
riding on a DC level.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"George" <nospamgem56@earthlink.net> wrote in message
news:t97g10hq6qedfm4na5aiklsdqvd4u27vo7@4ax.com...

Just checek them with the old analog meter on the 10x ohm. Will go
ahead and replace as many I can find replacements for.
Thanks






On Wed, 28 Jan 2004 05:55:14 -0600, "Mark D. Zacharias"
mzacharias@yis.us> wrote:

Don't know how you checked the caps, but the caps on the secondary side
are
still the leading suspects. Replace also the 22uF bipolar and the 4.7
250v
on the primary side.

Mark Z.