I found the same. The mech I received from MKII group buy did not work with my shigaclone. I'm wondering if they are not compatible or if I've overlooked something.
That's something you easily forget the solder blob
Tibi can possibly test 10 original sanyo laser mechanism and see what these all do
Then we know for sure what's going on
Regards,
Rudy
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I'll always carefully check ribbon cable from main board to optical unit.
I found that in some cases this cable do not make good contact with connectors.
Do not force this cable and always check if is fully inside connectors.
I don't have anymore JVC Shigaclone to test different mechanics, but I can confirm that Shiga MKII will work with all SFP101N-16P mechanics.
Some mechanics are noisy than others and some read better than others.
The best I got are from Dalbani and they sell these as original Sanyo.
regards,
Tibi
Yes I did. And I doublechecked that I did not damage anything. It seems okay. My package seemed to have been knocked around pretty good but the mech looks perfect and all continuity tests seem good. The mechanism blinks but does not read. Anything else to check? Thanks. Regards.
This is part of the higher quality sanyo mecha
Here are some photos. I am working on an article for them. It is almost ready.
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skipping and toc reading issue solved
Worked hard today all afternoon to solve the issue with skippin and TOC reading with Vishay modified laser and the case is solved-closed.My shiga read every CD I put on.
So may steps was like this:
1.Find best laser unit modified with Vishay1837 that read best possible and most of CD's. At this point I figured out unredable CD' and insisted only on this . Now ,once figured out the best laser unit ,I got 90% reading CD's...
2.Switch some mechanism platforms and find best one,at this point I find that some will perform very poor,I mean not reding at all...So figured out the best performing mechanism I got reading without skippings all CD ,but anyway there was one that will not give up and that one is ABBA's The Album(Polydor 0040150)...Not reading even TOC...but I foundet that if read TOC of another CD and put to play this one CD will be played...
So, I got shiga playing without skipping ALL CD's ,but only ABBA give me headache.Some time reading TOC ,it take a litlle bit longer but it reads and palys nice. and now I came to compound No3 that make the solution to 100% read TOC and without skipping ALL my CD's.
3.That is legendary C906. I was using there an russian FT-1 0.012uF.So I changed with Vishay 0,1uF and... voyla it reads ALL but ALL CD's in my collection.That means to me that 0,01uf is not enough for some reason to read properly all foulty CD's.
Finnaly, it took half a day to me but I'm happy now ,listening ABBA's The Album .
Hope my findings will help to someone...
Nicu
Worked hard today all afternoon to solve the issue with skippin and TOC reading with Vishay modified laser and the case is solved-closed.My shiga read every CD I put on.
So may steps was like this:
1.Find best laser unit modified with Vishay1837 that read best possible and most of CD's. At this point I figured out unredable CD' and insisted only on this . Now ,once figured out the best laser unit ,I got 90% reading CD's...
2.Switch some mechanism platforms and find best one,at this point I find that some will perform very poor,I mean not reding at all...So figured out the best performing mechanism I got reading without skippings all CD ,but anyway there was one that will not give up and that one is ABBA's The Album(Polydor 0040150)...Not reading even TOC...but I foundet that if read TOC of another CD and put to play this one CD will be played...
So, I got shiga playing without skipping ALL CD's ,but only ABBA give me headache.Some time reading TOC ,it take a litlle bit longer but it reads and palys nice. and now I came to compound No3 that make the solution to 100% read TOC and without skipping ALL my CD's.
3.That is legendary C906. I was using there an russian FT-1 0.012uF.So I changed with Vishay 0,1uF and... voyla it reads ALL but ALL CD's in my collection.That means to me that 0,01uf is not enough for some reason to read properly all foulty CD's.
Finnaly, it took half a day to me but I'm happy now ,listening ABBA's The Album .
Hope my findings will help to someone...
Nicu
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Where you get this , hard to find in the market .This is part of the higher quality sanyo mecha
Here are some photos. I am working on an article for them. It is almost ready.
I do not use R60. To my ears, pipad do not sound as clean as series divider.
Caddok are very good resistors, but best resolution I got from vishay zfoil. If I would use pipad I would go for vishay zfoil all around.
Regards,
Tibi
Yes, me too... Could you Tibi or Dimitrios arrange a GB on these? I'll sign up for 3 of them as they seem to be compatible with what I have.
Regards
C906/C8 is part of the tracking amplifier gain constant. A smaller value makes it faster changing, allowing to follow the pit line better. This also however means that imperfections would make it hunt very fast, which can in turn make it lose the pit line making it skip (minor imprefections are not enough to cause skipping on a digital conversion level, since the red book CIRC error correction can correct up to a few tenths of a mm of errors if I remember correctly).
Making the cap bigger makes tracking servo a bit slower in the sense that it still follows the line, but it is not so fast to start hunting with small imperfections. It just goes over them continuing its path. The same way however it may slightly go on its way missing the line at some spots.
My guess is that is why we hear the change all the way down to 10nF. Making it any smaller starts causing many reading problems. probably because it starts hunting faster than what CD production tolerances would expect.
Seeing it from a strictly perfectionist point of view, the smaller the better .
The datasheet proposes 2 values in the sample circuits. 68nF and 220nF. I guess the 100nF is a nice mid path.
I have not tried intermediate values (10-100nF), and yes with 10nF I have some ultra sensitivity too, but the clarity is totally worth it.
At some point I want to increase it slightly until I find the lowest value that plays a specific spot in my "Wish you were here" CD which skips in a specific spot for no apparent reason. 100nF for me gave significantly lower sound clarity, so I am estimating something really smaller.
Further to that, the resistors and caps between pins 5,6, 7 and 8 in LA9242M are parts of the same tracking error correction mechanism, so I would expect them to allows us to further trim the behavior, however the datasheet is quite obscure there and my knowledge is way limited to fill in the gaps properly.
For me C4, C5 and C6 are a reasonable place to start testing higher quality parts though
And perhaps R3, R13 and R15
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preemptively
Call me Dimitri guys Dimitrios is WAY too formal
I got the mechas from here
New Genuine Sanyo SF P101 16P Deck Old Version Laser Head Optical Pickup | eBay
Manamanam got a few too and we have no complaints so far.
Note thought that he is using Swiss post and they are REALLY slow... It takes abotu 45 days to receive them, so be ready to open a ticket on ebay preemptively.
Call me Dimitri guys
Dimitrios is WAY too formal I got the mechas from here
New Genuine Sanyo SF P101 16P Deck Old Version Laser Head Optical Pickup | eBay
Manamanam got a few too and we have no complaints so far.
Note thought that he is using Swiss post and they are REALLY slow... It takes abotu 45 days to receive them, so be ready to open a ticket on ebay preemptively.
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hi guys,
i finally got mine playing... no laser mods yet but clearly soo much better than jvc.. i used vishay zfoilon series divider and dueland on c8..
i had trouble the other day where i couldn't get the laser to read. found out later that I forgot to take the cover off of the laser.. dumb.
playing great now.. next up will be laser mods and ldr on the series divider.
i finally got mine playing... no laser mods yet but clearly soo much better than jvc.. i used vishay zfoilon series divider and dueland on c8..
i had trouble the other day where i couldn't get the laser to read. found out later that I forgot to take the cover off of the laser.. dumb.
playing great now.. next up will be laser mods and ldr on the series divider.