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Old 13th Oct 2016, 3:14 pm   #1
gingerbeardman
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Location: Cornwall, UK.
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Default PVM-1453MD loss of image

I just bought three of these, and they all worked fine initially.

However, one just lost the image.

It rolled away from the top of the screen and then went black. After that, the remote light went out with a couple of clicks/flashes and the tally light slowly illuminated to a bright green.

Now when I switch on the PVM no input buttons light up, no picture is displayed, no remote light under the power light, no OSD and therefore no menu, and the rectangular tally light above the screen is glowing bright green?

Manual (the 1354md USA equivalent is all I can find online): https://docs.sony.com/release//PVM1353MD.PDF

Is this unit kaput? Any thoughts?

I think year of production is 2005.

Any help appreciated.
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Old 13th Oct 2016, 5:56 pm   #2
Vintage Engr
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Default Re: PVM-1453MD loss of image

I used to install & service these, but they were generally very reliable. Sadly I no longer have a service manual.
From your description, it sounds like a power supply fault.

A service manual really is a must-have. It is old though, and spares will by now unavailable.
I'll ask around just in case any of my contacts still have any service info.
Dave.
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Old 13th Oct 2016, 6:17 pm   #3
gingerbeardman
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Default Re: PVM-1453MD loss of image

Thanks Dave.

Interestingly when I activate the power switch, the power light does comes on - but there's no sound of the tube firing up.

They were left in storage, unused for quite some time.

I have access to some other service manuals, I'll see if any are for similar models.
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Old 15th Oct 2016, 8:47 pm   #4
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Default Re: PVM-1453MD loss of image

This sounds like the unit has gone into protection. I seem to remember having a 20inch from the same model range that had this problem-no picture and tally light lit.
It was due to failure of a 1uf 50v electrolytic around the line output area.

I have the service manual, so i will dig it out and have a look-see if i can remember which one.

If the unit has had a lot of use, quite a few of the electrolytic capacitors will have failed.
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Old 15th Oct 2016, 8:49 pm   #5
gingerbeardman
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Default Re: PVM-1453MD loss of image

Great, thanks for your help.

I'm in South London with it at the moment. Any chance you'd be up for helping repair?
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Old 15th Oct 2016, 10:56 pm   #6
gingerbeardman
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Default Re: PVM-1453MD loss of image

Still looking for the service manual for the 1453MD (or 13/19/20-53MD)
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Old 16th Oct 2016, 11:13 pm   #7
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Default Re: PVM-1453MD loss of image

Hi, i can loan the manual or photocopy the relevant section.
The manual i have is for the 1352/1453MD.
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Old 16th Oct 2016, 11:28 pm   #8
gingerbeardman
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Default Re: PVM-1453MD loss of image

That'd be great, thanks. If you could loan I will scan and make available here digitally if that's OK with you?
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Old 17th Oct 2016, 8:14 pm   #9
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Default Re: PVM-1453MD loss of image

Hello, send me a PM with your details and we can go from there.
Thanks
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Old 17th Oct 2016, 8:15 pm   #10
gingerbeardman
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Default Re: PVM-1453MD loss of image

Will do so now
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