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chris_malone
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Post subject: [DVL-919] Picture Breakup Problem Posted: 09 Oct 2019, 09:01 |
Third post and above |
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Joined: 25 Sep 2019, 04:41 Posts: 3 Location: Australia Has thanked: 0 time Been thanked: 0 time
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Hi All Have a DVL-919 (the ‘E’ model) that is suffering from picture breakup. It’s a second-hand player so I don’t have any history on it other than being a 1998 manufacturing date. It’s most noticeable during FBI warnings, studio logos, opening credits. That sort of thing. Basically anything with text becomes an unreadable shimmer. And the general picture quality is pretty iffy. Don’t think it’s a 'rot' problem as have tried several discs but it still could be, I guess. It tends to be a lot worse towards the start of discs on both sides. Playing a disc upside down—using side B of the player to play side A—exhibits much the same issue. Audio is typically reproduced without issues on both the analog and digital tracks. It’s just the video that’s suffering. Have tried running the composite output through two different composite to HDMI converters with the same result. Also tried a composite to HDMI capture card with a few different settings. Any thoughts on where to start on this one? Have I just simply got a setting wrong? Is this a rookie error of some sort? Or is it time to break out the service manual and adjust centering and tracking? See screen captures below. Many thanks for any thoughts! Chris
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saeba
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 09 Oct 2019, 09:09 |
Serious fan |
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Joined: 19 Dec 2018, 10:20 Posts: 198 Location: France Has thanked: 90 times Been thanked: 47 times
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Hi, I had the same issue when I replaced the laser pickup on my CLD D925, all the texts at the beginning were not clear, basically, to me it looks like it's the same issue, the tracking might be off and the player needs some calibration. As I don't have any test discs nor oscilloscope for measurement, I tried and "eyeballed" the thing, it's not perfect but it works for me. Also, did you just get the player and it always played like this, or did it worked "normally" before, and this is a new issue ?
_________________ Loyalty above else, except Honor.
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saeba
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 09 Oct 2019, 09:11 |
Serious fan |
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Joined: 19 Dec 2018, 10:20 Posts: 198 Location: France Has thanked: 90 times Been thanked: 47 times
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Wait a minute, just noticed something Quote: Have tried running the composite output through two different composite to HDMI converters with the same result. Also tried a composite to HDMI capture card with a few different settings. Have you tried not using any upscaler or converter and put the composite input directly into your screen ?
_________________ Loyalty above else, except Honor.
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audioboyz1973
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 09 Oct 2019, 16:53 |
Advanced fan |
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Joined: 16 Jun 2015, 15:40 Posts: 825 Location: Australia Has thanked: 105 times Been thanked: 95 times
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rein-o wrote: Since you aren't using LD as LD was intended Oh how I hate this statement. If you really want "as it was intended" then use nothing but an RF cable to connect the player! The whole history of LD is one of embracing and bringing on new technology to get the best PQ you could. During the 90's players became chock-full of various digital processing technologies to improve their performance. IIRC Pioneer kept manufacturing players until 2009 so "of the era" includes plasma and also LCD. Now admittedly lots of LCD's/flat panels are really s**t at handling a composite signal (more recent ones especially OLED's seem to be getting better on that). But in my house a pretty typical LCD projector and to a lesser degree LCD screen give a better overall picture than the Sony CRT of the 90's era that was the "family TV" of the time. Of course in this case bypassing any separate convertor/scaler etc being used is a sensible step to rule out that being the issue.
_________________ Looking for Hi-Vision Discs (MUSE or HDVS).......
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takeshi666
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 09 Oct 2019, 17:51 |
Absolute fan |
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Joined: 01 Feb 2018, 02:41 Posts: 1990 Location: Finland Has thanked: 183 times Been thanked: 384 times
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rein-o wrote: Scalers and other devices are fine, I haven't used a CRT in over 7 years on my LDs and can't go back after knowing how to tweek. I only yesterday discovered a setting on my TV that eliminates a good deal of video noise. It does seem to give the image a bit of a green tint, but I can adjust that with the R/G slider. I really wish my TV would just let me save settings so I could easily switch between specific ones depending on the source!
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rein-o
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 10 Oct 2019, 03:48 |
Jedi Master |
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Joined: 03 May 2004, 19:05 Posts: 8105 Location: Dullaware Has thanked: 1219 times Been thanked: 844 times
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Numpty From the pictures he posted it sure looks like its running through a computer, I sort of remember those types of glitches when getting bad PCBs on arcade boards or when the connector wasn't making a clean contact. You can get a great image from any set as long as its setup right, but computers are a whole nother ball of wax.
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rein-o
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 17 Oct 2019, 18:31 |
Jedi Master |
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Joined: 03 May 2004, 19:05 Posts: 8105 Location: Dullaware Has thanked: 1219 times Been thanked: 844 times
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kaflo wrote: It's the laser pickup. You need to replace it. Lets not jump to repairs Tech Kaflo when he has it connected a wrong way or the computer is not picking up the analog signal.
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je280
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 18 Oct 2019, 01:28 |
Hardcore fan |
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Joined: 13 Sep 2012, 23:14 Posts: 1199 Location: United Kingdom Has thanked: 265 times Been thanked: 259 times
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rein-o wrote: kaflo wrote: It's the laser pickup. You need to replace it. Lets not jump to repairs Tech Kaflo when he has it connected a wrong way or the computer is not picking up the analog signal. Yeh please don't do any tweeks or "repairs" till you have fed it directly to your TV & not through anything else - that could fix the issue. Hope it is a simple fix & a direct feed helps, please keep us posted. Cheers
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rein-o
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Post subject: Re: DVL-919 Picture Breakup Problem Posted: 09 Nov 2019, 01:24 |
Jedi Master |
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Joined: 03 May 2004, 19:05 Posts: 8105 Location: Dullaware Has thanked: 1219 times Been thanked: 844 times
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amirax wrote: I suppose It's the laser pickup. You need to replace it asap Thank you tech amirax, I will pass on your expertise. Please make sure all tweeks and repairs are done at your own risk and make sure the advice is coming from people who know or have read about a proper repair.
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