CDpro2LF VAM1254/31-VAU1254/31-VAU1254/31LF - why various Die Casting Carrier Design? - diyAudio
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Old 17th June 2010, 08:04 PM   #1
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Default CDpro2LF VAM1254/31-VAU1254/31-VAU1254/31LF - why various Die Casting Carrier Design?

Here two picture series of two different aluminum die casting metal frame for the same mechanism VAM VAU 1254 / 31 LF (lead free) resp. CDpro-2LF. The frame of first picture series looks exactly like the first generation professional mechanism from Philips, the CDM12IND (CDM12 IND, CDM 12 IND, CDM 12IND, CDM12PRO).
Attached Images
File Type: jpg VAU1254-31 1 like CDM12 IND.jpg (42.8 KB, 880 views)
File Type: jpg VAU1254-31 2 like CDM12 IND.jpg (51.8 KB, 825 views)
File Type: jpg VAU1254-31 3 like CDM12 IND.jpg (40.5 KB, 811 views)
File Type: jpg VAU1254-31 4 like CDM12 IND.jpg (47.8 KB, 805 views)
File Type: jpg VAU1254-31 6 like CDM12 IND.jpg (47.3 KB, 794 views)
File Type: jpg VAU1254-31 7 like CDM12 IND.jpg (45.1 KB, 77 views)
File Type: jpg VAU1254-31 8 like CDM12 IND.jpg (41.0 KB, 77 views)
File Type: jpg VAU1254-31 resin like CDM12 IND.jpg (47.2 KB, 113 views)

Last edited by tiefbassuebertr; 17th June 2010 at 08:12 PM.
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Old 17th June 2010, 08:10 PM   #2
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Now the second picture series of the frame from CD pro2LF (CDpro CD pro). Stickers from both designs show model number VAU1254/31
Attached Images
File Type: jpg CDpro2 VAU1254-31 left-top.jpg (145.5 KB, 129 views)
File Type: jpg CDpro2 VAU1254-31 top-5pc.jpg (93.4 KB, 102 views)
File Type: jpg CDpro2 VAU1254-31 top.jpg (68.8 KB, 96 views)
File Type: jpg CDpro2 VAU1254-31 top-II.jpg (29.9 KB, 74 views)
File Type: jpg CDpro2 VAU1254-31LF resin.jpg (144.3 KB, 128 views)
File Type: jpg CDpro2 VAU1254 Philips_cd_pro2LF.jpg (72.7 KB, 135 views)

Last edited by tiefbassuebertr; 17th June 2010 at 08:13 PM.
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Old 6th January 2011, 09:02 AM   #3
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still no informations?
which of both design I get, if I order a currently VAM1254 version?
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Old 14th January 2011, 02:30 PM   #4
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Default Schematic from Datasheet VAU1254 removed from Daisylaser

Datasheet from VAU1254 you will get about
http://www.daisy-laser.com/products/...mVAUspec11.pdf
On the removed page 28 is a schematic diagram.
Who can post this?
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Old 18th January 2011, 08:43 AM   #5
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Default Information from Mr. Nico Thevissen

In this case I ask also Nico Thevissen (rutgerstraat 7 6067 EE Linne info@diy-high-end.com) several questions.
Quote:
Originally Posted by tiefbassuebertr View Post
Dear Mr. Thevissen,
I am looking to certainly informations arround your products from daisylaser without success.
1) About
CDpro2LF VAM1254/31-VAU1254/31-VAU1254/31LF - why various Die Casting Carrier Design?
you will find picture series of two different aluminum die casting metal frame for the same mechanism type (same sticker). The type is VAU 1254/31 LF (lead free). The frame of first picture series looks exactly like the first generation professional mechanism from Philips, the CDM12IND (CDM12 IND, CDM 12 IND, CDM 12IND, CDM12PRO).
The frame of second picture series looks exactly like various mechanism from the most suppliers. Isthe mechanical outline the only difference? And are the VAM1254/31LF so as the CDpro-II LF additional versions?
2) Next question:
>From which semiconductor manufactur now comes the LDGU Hologram laser diodes both in the TO and resin compact outline used in VAM1254/31LF, formerly produced and now obsolete by Sharp ??
Thank you very much for sending this informations.
And here his reply:
Quote:
Originally Posted by tiefbassuebertr View Post
Ich habe auch nicht die absicht in 17 jahre entwikkelung zuruck zu gehen.
The main difference is de preamplifier between optics and decoder.
Furthermore the PRO units are all designed for double speed reading, searching and pre-toc and toc reading, audio they read single speed rest double.
Lastly the BLERR of the unit. It is very low, extreme low, even suitable for measurement purposes on CD mastering machines.
So where is the problem.
Mfg. Nico
Unfortunately I am not able to find there a reference to my questions. Is my english soo bad?

Last edited by tiefbassuebertr; 18th January 2011 at 08:48 AM.
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Old 16th February 2011, 05:50 PM   #6
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I still hoping to get the appropriate informations from employers of the actually manufacturer. When I would have chinese language as native language, I would know all wanted details and detailled schematic diagram after some telephone calls and after a short time.
http://www.k166.com/shopping/show-product-11694752.xml
http://www.cndiyclub.com/bbs/read.ph...toread=&page=1
http://www.cndiyclub.com/bbs/simple/...?t13876_1.html
http://bbs.hifidiy.net/archiver/?tid-162743.html
http://www.headphoneclub.com/bbs/vie...ble&tid=131083
http://item.taobao.com/item.htm?id=8421577520
http://item.eachnet.com/prd/1296543091039312_prd.html

Last edited by tiefbassuebertr; 16th February 2011 at 06:18 PM.
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Old 25th April 2011, 01:45 PM   #7
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nobody here, who know this?
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Old 25th April 2011, 04:55 PM   #8
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Default translation

Hi Tief

Google translation does a fairly good job. It can translate in many languages.
It's not perfect, but very useful.
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Old 26th April 2011, 09:50 PM   #9
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Quote:
Originally Posted by Jean-Charles View Post
Hi Tief
Google translation does a fairly good job. It can translate in many languages.
It's not perfect, but very useful.
Translating help from a chinese member is certainly much more useful
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Old 27th April 2011, 02:12 AM   #10
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Agreed, but when you don't have one near by! You always have Google around. LOL.
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