It is currently 01 Dec 2021, 12:49




 Page 4 of 4 [ 71 posts ]  Go to page Previous  1, 2, 3, 4
Author Message
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 30 Sep 2021, 18:10 
Genuinely interested
Genuinely interested
User avatar

Joined: 11 Jul 2021, 10:51
Posts: 44
Location: Uzbekistan
Has thanked: 7 times
Been thanked: 3 times
I tried to play another disc on the B side. I got a loop again on the last chapter.

I managed to enter test mode. I had to make an IR transmitter using an arduino. I didn't see TILT, there was only T-8 and TRK. If T-8 is TILT, then how to switch it? I'm not sure if I did it right, since I don't know what position TILT is in. I recorded a video of what I did at the beginning: https://disk.yandex.ru/d/AsikBrGJLbcUGw
Then on the oscilloscope I changed the horizontal time base to get a "denser" waveform. I twisted a white and black screw until I got the most "bold" and stable waveform. I was unable to get the perfect waveform. Is it possible? Is this even necessary?

Then I checked the last chapter. There were no loops during playback. It also seemed to me that chapter switching has become much faster.

Tomorrow I plan to play the entire disc. I'm not sure, but maybe the loops could have appeared in other positions.
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 01 Oct 2021, 01:43 
Hardcore fan
Hardcore fan
User avatar

Joined: 13 Aug 2018, 03:18
Posts: 1211
Has thanked: 322 times
Been thanked: 398 times
jefix wrote:
I had to make an IR transmitter using an arduino.

Nice!

jefix wrote:
I didn't see TILT, there was only T-8 and TRK. If T-8 is TILT, then how to switch it?

T-8 means on a scale from 0-F, tilt is at 8. OFF, N, or ON is next to it indicating servo status. - Speed key turns it on.

jefix wrote:
I was unable to get the perfect waveform. Is it possible? Is this even necessary?

Your oscilloscope is too "zoomed" in. Set to around to 50mv 10ms DC.

jefix wrote:
It also seemed to me that chapter switching has become much faster.

Yeah slow initial playback or slow chapter seek can be symptoms of centering needing adjustment.
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 01 Oct 2021, 17:21 
Genuinely interested
Genuinely interested
User avatar

Joined: 11 Jul 2021, 10:51
Posts: 44
Location: Uzbekistan
Has thanked: 7 times
Been thanked: 3 times
cplusplus wrote:
Your oscilloscope is too "zoomed" in. Set to around to 50mv 10ms DC.

Yes, I did it behind the scenes. It took about 5 minutes to adjust.

I tested two LD today. There were no problems with playback. I fixed the screws with nail polish as you advised.

Thank you very much! :thumbup: I hope there will be no more breakdowns. I am very tired :yawn:
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 01 Oct 2021, 17:25 
Genuinely interested
Genuinely interested
User avatar

Joined: 11 Jul 2021, 10:51
Posts: 44
Location: Uzbekistan
Has thanked: 7 times
Been thanked: 3 times
By the way, has anyone tried this LD alignment method? Does it really work? I found this in the CLD-D704 manual.


Attachments:
warp.png
warp.png [ 99.08 KiB | Viewed 219 times ]
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 01 Oct 2021, 17:46 
Jedi Master
Jedi Master
User avatar

Joined: 03 May 2004, 19:05
Posts: 7478
Location: Dullaware
Has thanked: 866 times
Been thanked: 596 times
jefix wrote:
By the way, has anyone tried this LD alignment method? Does it really work? I found this in the CLD-D704 manual.

Yes
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 05 Oct 2021, 19:13 
Third post and above
Third post and above
User avatar

Joined: 29 Aug 2021, 01:11
Posts: 6
Location: United States
Has thanked: 2 times
Been thanked: 1 time
On the subject or the R7G, has anyone ever "painted" a laserdisc player chassis? My R7G has stains in the metal from the previous owner at the corners. It looks like there was something on top of it like a receiver or VCR for a very long time as there are four dark, circular spots at each corner. I have tried just about everything to get them out to no avail. Isopropyl alcohol, brasso, flitz and even magic eraser/scouring sponge didn't even touch it. It's looking like the only solution would be to remove the metal chassis and spray paint it. What would be the best paint for this? Does anyone know a close match for the "champagne gold" Pioneer players?
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 05 Oct 2021, 21:50 
Jedi Master
Jedi Master
User avatar

Joined: 03 May 2004, 19:05
Posts: 7478
Location: Dullaware
Has thanked: 866 times
Been thanked: 596 times
I would try automotive paint, unknown what color will even be close.

If you use gold or any type of metallic paint do not clear coat it, it will make it foggy.
Personally you are worried too much, I would just deal with it the way it is but if you must.

Did you try acetone?? May take up paint but may be just right. Nail polish remover.
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 06 Oct 2021, 00:04 
Third post and above
Third post and above
User avatar

Joined: 29 Aug 2021, 01:11
Posts: 6
Location: United States
Has thanked: 2 times
Been thanked: 1 time
rein-o wrote:
I would try automotive paint, unknown what color will even be close.

If you use gold or any type of metallic paint do not clear coat it, it will make it foggy.
Personally you are worried too much, I would just deal with it the way it is but if you must.

Did you try acetone?? May take up paint but may be just right. Nail polish remover.


I have not tried acetone yet, I suppose I will give it a go before committing to spray paint. Thanks.
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 06 Oct 2021, 08:24 
True fan
True fan
User avatar

Joined: 26 Jun 2019, 06:17
Posts: 455
Location: New Zealand
Has thanked: 101 times
Been thanked: 109 times
If i owned a R7G the paint would be the least of my worries
_________________
CLD-R7G
CLD-D590
VSA-E07 AC3RF+DTS
iScan DUO Processor
Check out my small but loved collection here..
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 06 Oct 2021, 11:32 
Absolute fan
Absolute fan
User avatar

Joined: 01 Feb 2018, 02:41
Posts: 1788
Location: Finland
Has thanked: 128 times
Been thanked: 294 times
The easiest solution is to just plonk another piece of hi-fi on top of it so you can't see it :mrgreen:
Offline
 Profile  
 
 Post subject: Re: CLD-R7G disassembly and repair
PostPosted: 25 Nov 2021, 10:49 
Genuinely interested
Genuinely interested
User avatar

Joined: 11 Jul 2021, 10:51
Posts: 44
Location: Uzbekistan
Has thanked: 7 times
Been thanked: 3 times
Hello everyone! :wave: My second R7G was delivered. It seems to work great! :o https://disk.yandex.ru/i/DzK6OL3BufHT8A At first glance, it works better than the previous one. It feels much quieter. I also noticed that inside it is slightly different. The pads that are between the protective cover and the frame are different. Perhaps this is a different revision, I don't know.
I did not notice the problem that the seller described. (he wrote that the tray sometimes does not open)

But FedEx didn't work perfectly :| The protective cover is deformed again. https://disk.yandex.ru/i/siX2Jv2bxYNWfw Good thing it's easy to fix.
Offline
 Profile  
 
Display posts from previous:  Sort by  
 Page 4 of 4 [ 71 posts ]  Go to page Previous  1, 2, 3, 4


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: