topic S370 discs jump at same time in Home Cinema, Projectors & Players

S370 discs jump at same time

highlander317 — Tue, 06 Sep 2011 15:07:39 GMT

We have a BDP-S370 blu ray player and over the week or so have noticed that about the 1 hour 15 minutes mark the disc stops and then starts again. This has become more and more noticable. It happens on both original and homemade discs in dvd format.

Any help is appreciated

Cheers

S370 discs jump at same time

Bravia55HX — Wed, 07 Sep 2011 06:55:48 GMT

Hi,

on normal dvd's this is down to what is known as layer change, basically what this means is that all pre-recorded dvd's have a dual layer surface to record apon and this "jump" is down to the player finding the second level.

now as for blank media doing this, this can only happen if you are using dual layer dvd's, these are 8.5GB, if you are using single layer (4.7GB), it wont do this.

all blu ray discs do not exibit this trait.

hope this helps.

S370 discs jump at same time

KDL-CX520 — Thu, 08 Sep 2011 06:26:59 GMT

If the problem is related to a specific disc only, that mean it has surface scratch / dust on the track recorded at 1hr 15min...the remedy will be clean the disc surface and slight polish it using a damp soft cotton cloth.

If the problem is related to many discs from different sources that mean hardware problem ( the laser lens carrier mechanism may stuck at a specific point).

May be this help.

Regards,

Message was edited by: KDL-CX520

S370 discs jump at same time

Bravia55HX — Thu, 08 Sep 2011 08:11:40 GMT

Hi,

KDL-CX520

not entirely correct on the disc cleaning there unless you are referring to 45's or LP's, DVD's do not have grooves or tracks as the discs are completely smooth, the very best you can do is wipe off any fingerprints from the centre outwards

perhaps highlander317 can add if this happens on blu ray also as all that was mentioned was original and homemade discs in DVD format.

then your statement on a fault with the laser track may carry more weight:smileywink:

S370 discs jump at same time

highlander317 — Thu, 08 Sep 2011 09:54:03 GMT

Have not noticed it happening on blu ray discs, only original dvd and backup dvds. All my backup dvds are single layer but understand the backed up movie may cross the layers from the original disc, but every movie I backup? seems odd to me.

Some of the jumps are quite harsh and when I explained to the wife that dvd cases used to have a warning written on them about the skip between layers was normal, this current problem is more than a skip and becoming more of a short pause.

S370 discs jump at same time

Bravia55HX — Thu, 08 Sep 2011 14:39:39 GMT

highlander317,

thanks for clarifying that, something certainly is not normal here, may i suggest playing these on another player to rule out the player, if it does it on another player then its down to the dvd's,

i used to rip and copy hundreds of dvd's in the past with no problems like this.

granted we understand layer change but this sounds like a little more than that,

are you doing full back ups (8.5gb) or are you shrinking to fit 4.7gb?, this may be an invalid question as you have said you are experiencing this on normal DVD's.

please do try another DVD or blu ray player and see if the problem persists.

regards.

S370 discs jump at same time

highlander317 — Thu, 08 Sep 2011 14:51:17 GMT

Usually just copy the main movie to backup not shrink the whole disc to single layer. Ill try a definate problem disc in another player and see what happens. Watch this space

S370 discs jump at same time

highlander317 — Thu, 08 Sep 2011 15:17:01 GMT

Just tried in the kids room and the original disc did not jump. going to try again on problem player when they go to bed to get the exact time of jump/skip and can try in another bedroom.

S370 discs jump at same time

highlander317 — Thu, 08 Sep 2011 18:17:45 GMT

Have just tried on 2 other players both dvd and the jump is hardly noticable nothing like the blu ray player.

Anyone got any ideas?

S370 discs jump at same time

Bravia55HX — Thu, 08 Sep 2011 18:43:26 GMT

Hi,

ok, presuming the other two players are DVD players then unless theres something amiss with the laser carrier in the blu ray player i do not believe theres much you can do about it,

unless im mistaken i read somewhere that the laser on blu ray players are a lot finer than the ones found in normal dvd players and it could be because of this you are noticing this "jump".

i have played a lot of dvd's in my s570 with no ill effect, yes you notice a layer change but rarely,

we could go on for days trying to come to a solution if there even is one, so my advice would be to get a service engineer to take a look at the laser to see if its snagging anywhere if you are that worried or you can just settle for playing dvd's in a dvd player.

S370 discs jump at same time

KDL-CX520 — Thu, 08 Sep 2011 20:47:30 GMT

Hello highlander317,

As explained before, i still consist that your blu ray have hardware problem (Laser Carrier mechanism stuck or laser beam bias gain need adjustment)...the problem occurs at 1hr 15 min on dvd (almost near the edge of dvd disc), this area the tracks have more vertical movement (due to normal disc runout), the laser beam width and gain control should be correctly aligned to follow the runout.

Anyway, you as a customer are not involved to analize or fix the problem, I would recommend you have contact with Sony service centre.

Last trial before you go ahead for repair, is to clean the laser lens, check after market for CD/DVD lens cleaner, prefered type is the one which have disc with fine tiny brushs.

Have a good day

Message was edited by: KDL-CX520

S370 discs jump at same time

Bravia55HX — Fri, 09 Sep 2011 07:44:34 GMT

Already said that!:smileywink:

S370 discs jump at same time

KDL-CX520 — Fri, 09 Sep 2011 11:02:09 GMT

That is great it is nice to share info

In General, it is a headache to diagnosis a problem with DVD player, DVD recorder and Blu ray. Once you decide to buy any brand name unit then you should be ready to face a problem in a day sooner or later. Either its laser diode power diminished over usage time, misalignment/calibration, incompatibility between discs manufacturers and your device. Somehow it is a technology matter.