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| CLD-R7G disassembly and repair https://forum.lddb.com/viewtopic.php?f=53&t=9982 |
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| Author: | jefix [ 30 Sep 2021, 18:10 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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. |
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| Author: | cplusplus [ 01 Oct 2021, 01:43 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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. |
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| Author: | jefix [ 01 Oct 2021, 17:21 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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!  I hope there will be no more breakdowns. I am very tired 
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| Author: | jefix [ 01 Oct 2021, 17:25 ] | ||
| Post subject: | Re: CLD-R7G disassembly and repair | ||
By the way, has anyone tried this LD alignment method? Does it really work? I found this in the CLD-D704 manual.
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| Author: | rein-o [ 01 Oct 2021, 17:46 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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 |
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| Author: | necronomikoi [ 05 Oct 2021, 19:13 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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? |
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| Author: | rein-o [ 05 Oct 2021, 21:50 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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. |
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| Author: | necronomikoi [ 06 Oct 2021, 00:04 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
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. |
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| Author: | jakeheke [ 06 Oct 2021, 08:24 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
If i owned a R7G the paint would be the least of my worries |
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| Author: | takeshi666 [ 06 Oct 2021, 11:32 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
The easiest solution is to just plonk another piece of hi-fi on top of it so you can't see it 
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| Author: | jefix [ 25 Nov 2021, 10:49 ] |
| Post subject: | Re: CLD-R7G disassembly and repair |
Hello everyone!  My second R7G was delivered. It seems to work great!  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.
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