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 Post subject: [Sony MDP-600] Tracking Issue
PostPosted: 19 Nov 2017, 05:13 
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This thread is for the non-Sony bashers here. :)

I have an MDP-600 I bought new back in 1996. It's has been my one and only player for the last 21 years and thus far has been extremely reliable. I have never had an issue with it. Until now.

The machine sat unused for the last several years. It's been in my equipment cabinet idle until a few weeks ago when I started watching movies on LD again.

The first movie I watched (Goldeneye) was doing fine until the end of Side A - about 44 minutes in. The picture started to degrade and the player was having trouble tracking and started skipping.

It eventually gave up and went in to something the service manual calls an "emergency shutdown" where player switches off to avoid damage. Once that happened, pressing the power button turned the machine one or two seconds, flashed "Open" on the display and then turned off.

I was able to clear the emergency condition and got the laser sled to home. I gently brushed off the lens because I realized the disc tray had a good layer of dust on it from sitting idle and I figured the lens was probably coated as as well.

I replayed the GoldenEye disc and it tracked properly past the point on Side A where it failed. Then it got to the end of Side B and did the same thing.

I rummaged around on Google Groups and found posts from owners of the MDP-600 from the old alt.video.laserdisc netnews group who said their player had this same shutdown issue when it reached the end of Side B. I have watched hundreds of movies on my player and never had this problem until now.

Has anyone else with an MDP-600 had this problem and if so, did you were you able to correct it?

Randy
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 19 Nov 2017, 05:26 
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Sony basher here :P

It could be something like the capacitors are leaking or are bad and need to be replaced, also could be old grease??? Would have to be cleaned off and re lubed.
Good luck.
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 19 Nov 2017, 07:04 
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Try another movie it seems like your golden eye disc has warped.
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 20 Nov 2017, 00:22 
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primetarget wrote:
Try another movie it seems like your golden eye disc has warped.
I though about this, but if the GoldenEye disc were warped I would expect the player to fail to read it every time -- it after dusting the lens it played through just fine.
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 20 Nov 2017, 00:29 
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rein-o wrote:
Sony basher here :P
Repsect that. :thumbup:

Quote:
It could be something like the capacitors are leaking or are bad and need to be replaced, also could be old grease??? Would have to be cleaned off and re lubed.
The sled travels the C-track without any obvious problem. I had the same thought about leaky caps since Sony seemed to have an issue with them back in that era of manufacturing.

I didn't see any caps with obvious bulges or leaks when I had the player apart but I am also not an expert and didn't do a through inspection. There's a local guy who still does hi-fi repair and actually worked on LD players (mostly Pioneers, he says -- hmmmm... jk ) so I may pay him a couple bucks to give mine a once-over.

Thanks for the reply!
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 20 Nov 2017, 01:16 
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(It's the MDP-605 which has awful capacitor issues)
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 20 Nov 2017, 19:40 
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happycube wrote:
(It's the MDP-605 which has awful capacitor issues)


That is good to know as I have an MDP-600 that still works (the last time I tried, anyway).
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 22 Nov 2017, 22:18 
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Well, in all honesty I can't bash any working player.
Its really that there are no parts for SONY and they were not in production for as long as Pioneer so it make them more of an off brand for LD.

But do keep us posted on what you get fixed and how you got it fixed for others who are possibly in the same situation.
Keeping LDs playing is the most important.
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 23 Nov 2017, 07:15 
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Thanks everyone. It is odd an odd problem.

I have watched two and a half movies on successive nights since the last lock up and have had no issues.

The player locked up at the end of Side B of the first disc of Andromeda Strain. I unplugged it, let it sit overnight and the next morning it started up fine.

That evening I finished watching Side 3 of Andromeda Strain and then watched The Blues Brothers (3 sides). No problems at all. The next night I watched Quiz Show start to finish (also 3 sides) with no issue. I am really not sure what triggers the problem or if it's truly just kind of random hardware glitch like I read about on the old a.v.l. threads.

As I said, I never had a problem with this player from the time it was new until just recently. Aside from age (which very well could be a contributing factor) I can't think of anything that would have triggered it.

If I come up with anything, I'll post it here. For now, I have a lot of discs to watch and will see if I can figure out what causes the issue.
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 Post subject: Re: Sony MDP-600 Tracking Issue
PostPosted: 23 Nov 2017, 20:04 
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I know you said cleaning the lens fixed the issue but you should still check for warp on a flat surface. Near the end of the disc (player reads discs from the inside out) is where the laser has to work hard to maintain that lock.
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