Sign in   |  Join   |  Help
Untitled Page

ARCHIVED FORUM -- March 2012 to February 2022
READ ONLY FORUM

This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022

 

Why does the cd laser burn out on beosound systems??

rated by 0 users
This post has 40 Replies | 1 Follower

chris
Not Ranked
Posts 79
OFFLINE
Bronze Member
chris Posted: Thu, Nov 14 2013 10:39 AM

I've noticed that over time the optical laser mechanism dies out . For a B&O  system that is so expensive I think that this shouldn't happen...my friend has a technics micro system from 1999 and the cd works perfectly. Last year the cd drive on my beosound 1 died. I took it to B&O and had a new one built in. The price was 268 euros. I never even asked if it was only a small part that needed to be fixed . Well they changed the whole mechanism and it's quite large. Anyway I was told that it died because of dust. Yet the instruction manual inside had said that cd cleaners shouldn't be used go figure. The new cd that was installed is Quicker and less noisy when tracks are changed etc.. I've heard of the laser dying out on other systems too like the beosound 3200 and 9000 as well. Maybe it's because the whole mechanism is totally open. Anyway I use a simple cd cleaner with bristles now. But still this shouldn't happen and I'm sure B&O make money when something dies out and there is no warranty anymore. 

bayerische
Top 25 Contributor
Ekenäs, Finland
Posts 4,770
OFFLINE
Bronze Member
bayerische replied on Thu, Nov 14 2013 11:22 AM

It really varies a lot.

 

Some Systems are over 20 years and no problems. B&O isn't manufacturing the CD mechanism, it's Philips. 

Too long to list.... 

BeoGreg
Top 75 Contributor
South of France
Posts 1,417
OFFLINE
Bronze Member
BeoGreg replied on Thu, Nov 14 2013 4:48 PM
I just took my parents Ouverture to my dealer because the cd mech died (start spinning and stops). The system is from 1998 and they maybe used it ten hours.

Just thought that it wasn't used enough because my 2001 BS 9000 MK3 still works perfectly and I use it almost everyday.

Quote for Ouverture cd mech : 549 € and they told me I was lucky because after the 31st of december no more available from B & O !
rxcohen
Top 500 Contributor
New York
Posts 201
OFFLINE
Bronze Member
rxcohen replied on Thu, Nov 14 2013 4:52 PM

I don't have an answer but i share the disappointment. I have a BS9000 and the laser became problematic after only 4 years of infrequent use. I also expected a better build quality, and to be frank I waited many years to make another investment in B&O with the fear of being stuck with another issue. 

BV11-55, BS9000, BL1, BL19, Transmitter 1, Beo4, Beocom 6000, BeoTalk1 200, Sennheiser HD600, McIntosh MHA100

Anders Jørgensen
Top 200 Contributor
Denmark
Posts 350
OFFLINE
Bronze Member

I had a 9000MKIII at some point.

The only thing wrong was the dust on the inside of the glass, Wipe that of carefully and it was working 100%. The former owner used it for radio.

My 1980's CDX is Phillips and has not been babied in its life however the lazer is still going strong.

Orava
Top 100 Contributor
Finland
Posts 991
OFFLINE
Bronze Member
Orava replied on Thu, Nov 14 2013 5:23 PM

rxcohen:

I don't have an answer but i share the disappointment. I have a BS9000 and the laser became problematic after only 4 years of infrequent use. I also expected a better build quality, and to be frank I waited many years to make another investment in B&O with the fear of being stuck with another issue. 

It has a Philips laser, probably quite standart, is there any better nowdays, I dont know, I dont belive. There is many brands claiming to be "hi-end", "pro" or whatever, but when looked inside, mechanics are all the same. I have one "high-end" player, but what it has, maybe little better electronisc any overall built, but cd-mech, std philips CDM12.x

 blah-blah and photographs as needed

Dillen
Top 10 Contributor
Copenhagen / Denmark
Posts 13,191
OFFLINE
Founder
Moderator
Dillen replied on Thu, Nov 14 2013 8:02 PM

Some capacitor types dry out with age, pretty much regardless of use.
The repairshop needs to order and replace the whole module when a capacitor dies because they
don't have the skills (or time or can't be bothered) to diagnose and repair at component level.

Martin

chris
Not Ranked
Posts 79
OFFLINE
Bronze Member
chris replied on Thu, Nov 14 2013 9:53 PM

I'm not complaining it died after 7 years of use I guess that's not so bad.

but almost 300 euros for a philips cd drive is too much

chris
Not Ranked
Posts 79
OFFLINE
Bronze Member
chris replied on Thu, Nov 14 2013 9:53 PM

I'm not complaining it died after 7 years of use I guess that's not so bad.

but almost 300 euros for a philips cd drive is too much

Steffen
Top 75 Contributor
Denmark
Posts 1,408
OFFLINE
Bronze Member
Steffen replied on Thu, Nov 14 2013 11:57 PM

chris:

I'm not complaining it died after 7 years of use I guess that's not so bad.

but almost 300 euros for a philips cd drive is too much

You're right - it IS too much...But that is if you buy it from B&O. You can find those CD drives for 20 euros or less on the net.

But - as 'Dillen' wrote above:

Often it's not the laser that is dead - but just some capacitors that need to be changed.
But almost any B&O shop will change the whole drive, because it's the easiest thing to do. They are too lazy - or they simply don't have the skills to change capacitors.
Today most repair-shops are used to change modules, instead of doing a little soldering...Sad

TWG
Top 75 Contributor
Posts 1,672
OFFLINE
Gold Member
TWG replied on Fri, Nov 15 2013 8:40 AM

CD mechanisms is not equal to CD mechanism :-)

Sony and Philips where the two Companies that invented the CD and so you'll guess there are not many manufactures for those CD mechanisms.


I guess it is a problem with B&O devices that the laser is exposed and in case of the Beosound Overture, 3000, 3200 etc. there is the problem that - for design terms - they choosed to install the CD drive with the laser mounted vertically. I guess the laser sled would survive much longer if it was mounted vertically - but this wouldn't look as symmetric as it does now.

I can NOT understand the bad talking about Philips drives and highend companies using them: There are CDM-series (this is the "name" of the laser-mechanisms) which are simply state-of-the-art and that's why company X chooses the drive (e.g. the CDM-2 family of drives).

Dying lasers are a problem of REAL highend machines, too, like e.g the Sony CDP-XA50ES and because of the proprietary developed mechanisms it is MUCH MUCH harder to get a replacement/repair kit for those machines than for B&O that uses cheap standard mechanisms.

If you are fit enough with a soldering iron and electronics, you can get the service manual for your device here on Beoworld, have a look what drive is installed in your Beosound/Beocenter, order the drive from any electonics supplier and replace it yourself.

chris
Not Ranked
Posts 79
OFFLINE
Bronze Member
chris replied on Fri, Nov 15 2013 11:25 AM

Well that's a lot of interesting information.

I was so mad when I went to collect my beosound 1 because they had made a really big scratch on the white cover grille I didn't say anything I was so mad. 

BO
Top 150 Contributor
Halmstad, Sweden
Posts 728
OFFLINE
Bronze Member
BO replied on Fri, Nov 15 2013 1:53 PM

TWG:
B&O that uses cheap standard mechanisms

That´s not how I would put it. B&O have used  CDM1, CDM2, CDM4, CDM12 ind,CDPRO, CDPRO2, and CDPRO2LF. All with casted aluminium chassis regarded as top notch and HIGH END.

//Bo.
A long list...

Orava
Top 100 Contributor
Finland
Posts 991
OFFLINE
Bronze Member
Orava replied on Fri, Nov 15 2013 2:01 PM

BO:

TWG:
B&O that uses cheap standard mechanisms

That´s not how I would put it. B&O have used  CDM1, CDM2, CDM4, CDM12 ind,CDPRO, CDPRO2, and CDPRO2LF. All with casted aluminium chassis regarded as top notch and HIGH END.

still, how can they judge laserdiode itself? If you know semiconductor manufacturing process, think example Intel, they dont do factory and start to make ic's just like that, rather if they are lucky manufacture process works right and then they copy that process as good as possible to other factories.

So I think it is not possible to know for sure that lasers are "top notch and HIGH END", even in aluchassis. They only can take them from good known factory, but is it allways good?

 blah-blah and photographs as needed

cooldude
Top 500 Contributor
Posts 101
OFFLINE
Bronze Member
cooldude replied on Fri, Nov 15 2013 4:34 PM

It seems to be most often the electronics failing instead of the laser unit itself.

Over the years I had to replace the full cd drive of my beocenter9500, beosound 9000, 2500 and 4000.
All had failed electronic boards, but all the laser units themselves where fully operational. 
Costly as nobody wanted to repair but only replace the full unit. I do not possess the full workshop and not enough skills to fully check every cap or IC on a motherboard in order to temp a repair myself.

My old cd50 unit still works without a hitch. I had the motor checked and lubed last year, but that was preventive instead of a repair.

Also the fact that philips kept making design changes (can't really call it improvements!) to its CDM range over the years creates artificial scarcity it seems.
These things are mostly commodities now, assembly chain built. Even the high-end ones and should NOT cost the prices they ask for them. 
I also seems the B&O drives motherboards are slightly different or customized from the  'of the shelf' replacement drives. I did try it myself once without success.

BO
Top 150 Contributor
Halmstad, Sweden
Posts 728
OFFLINE
Bronze Member
BO replied on Fri, Nov 15 2013 5:33 PM

Orava:
So I think it is not possible to know for sure that lasers are "top notch and HIGH END", even in aluchassis. They only can take them from good known factory, but is it allways good?

Nowadays Philips don´t make them any more. Its all made in China by others.

 

//Bo.
A long list...

TWG
Top 75 Contributor
Posts 1,672
OFFLINE
Gold Member
TWG replied on Fri, Nov 15 2013 6:10 PM

BO:

TWG:
B&O that uses cheap standard mechanisms

That´s not how I would put it. B&O have used  CDM1, CDM2, CDM4, CDM12 ind,CDPRO, CDPRO2, and CDPRO2LF. All with casted aluminium chassis regarded as top notch and HIGH END.



Ok, I'm sorry, than I'm misinformed. I didn't know that B&O used the high quality drives - but I would have expected this! :-)

Perhaps the faults results from the custom modifications B&O made to the electronic circuits boards?! But that's just a guess...

 

Orava
Top 100 Contributor
Finland
Posts 991
OFFLINE
Bronze Member
Orava replied on Fri, Nov 15 2013 8:56 PM

BO:

Orava:
So I think it is not possible to know for sure that lasers are "top notch and HIGH END", even in aluchassis. They only can take them from good known factory, but is it allways good?

Nowadays Philips don´t make them any more. Its all made in China by others.

 

And thats why all of them dont last.... Inevitably it makes you think that it is in purpose.

 blah-blah and photographs as needed

Kronzilla
Top 500 Contributor
Belgium
Posts 101
OFFLINE
Bronze Member
Kronzilla replied on Fri, Nov 15 2013 10:44 PM

Well actually, Philips makes indeed the CdPro modules, but the quality control for B&O is much higher than the regular ones that Philips makes for others. 

And indeed the cdpro modules are just replaced  by new ones.

I still have the original cdm4 in my beosystem 2500. And used it every day without problems

BO
Top 150 Contributor
Halmstad, Sweden
Posts 728
OFFLINE
Bronze Member
BO replied on Sat, Nov 16 2013 10:56 AM

kronzilla:
I still have the original cdm4 in my beosystem 2500.

The CDM4 Laser is almost indestructible. What can and will happen is that you will have to recap the servo board.

The CDM4 is a very good unit which uses the classic well sounding TDA1541 DAC chip.

 

//Bo.
A long list...

Raeuber
Top 50 Contributor
Germany
Posts 2,542
OFFLINE
Bronze Member
Raeuber replied on Sat, Nov 16 2013 11:17 AM
I have a Beosound 9000 since 1998 and CD laser had been replaced 4 times during these 15 years. Total costs more than 1500 EUR. This is only acceptable because I love the design of BS 9000.

In 1998 I gave my 5 years old CD player from Sony to my sister. It works fine until today.

My wife has a cheap CD player from JVC in her kitchen for more than 10 years without any problems.

Don't tell me something about high quality of B&O products. B&O is a lifestyle and a design company!

Greets

Räuber
Leslie
Top 25 Contributor
the Netherlands City
Posts 5,423
OFFLINE
Silver Member
Leslie replied on Sat, Nov 16 2013 12:10 PM

 

Raeuber:
Don't tell me something about high quality of B&O products. B&O is a lifestyle and a design company!

I totally agree, design and lifestyle and a high grade of use of materials but imho the inner is just a piece of crap!

Brengen & Ophalen

MicTheCat
Not Ranked
Denmark
Posts 10
OFFLINE
Silver Member
MicTheCat replied on Sat, Nov 16 2013 3:57 PM

Hmm i had a BC9000 from 1988 sold it 3 years ago to a friend and it still work every day playing CDs and have newer been repaired. People keep the B&O equipment so eventually you will see repair needs. Most other stuff is replaced after few years before eg. capacitor wear out 

wonderfulelectric
Top 150 Contributor
Posts 563
OFFLINE
Bronze Member

Raeuber:
I have a Beosound 9000 since 1998 and CD laser had been replaced 4 times during these 15 years. Total costs more than 1500 EUR. This is only acceptable because I love the design of BS 9000.

 

 

In 1998 I gave my 5 years old CD player from Sony to my sister. It works fine until today.

 

 

My wife has a cheap CD player from JVC in her kitchen for more than 10 years without any problems.

 

 

Don't tell me something about high quality of B&O products. B&O is a lifestyle and a design company!

 

 

Greets

 

 

Räuber

I think the repairs are meant to generate some revenue for B&O. 

DoubleU
Top 150 Contributor
Posts 562
OFFLINE
Bronze Member
DoubleU replied on Sat, Nov 16 2013 6:49 PM

Strange way of thinking. It's quite the opposite...

Orava
Top 100 Contributor
Finland
Posts 991
OFFLINE
Bronze Member
Orava replied on Sat, Nov 16 2013 7:12 PM

wonderfulelectric:

 

I think the repairs are meant to generate some revenue for B&O. 

I think nowdays people are not very keen to make repairs, so rather it generates bad reputation.

 blah-blah and photographs as needed

symmes
Top 500 Contributor
Posts 247
OFFLINE
Bronze Member
symmes replied on Sat, Nov 16 2013 8:06 PM

DoubleU:

Strange way of thinking. It's quite the opposite...

Absolutely. When you offer a 3 year warranty on electronics, you are banking on your product being good enough to never need repair.

wonderfulelectric
Top 150 Contributor
Posts 563
OFFLINE
Bronze Member

Most people lose their warranties? At least I did and so...

Either that or the R&D team is not up to par. 

chris
Not Ranked
Posts 79
OFFLINE
Bronze Member
chris replied on Sun, Nov 17 2013 8:36 PM

Come on people when you pay 3000 euros for a b&o system it should never need any kind of repair.

wonderfulelectric
Top 150 Contributor
Posts 563
OFFLINE
Bronze Member

My Beosound 8 had three repairs. 

Anyway now that there really isn't a need for docking or moving mechanisms of any kind for future products, I think the QC problem pretty much resolved itself. 

 

Steffen
Top 75 Contributor
Denmark
Posts 1,408
OFFLINE
Bronze Member
Steffen replied on Sun, Nov 17 2013 10:02 PM

Raeuber:
I have a Beosound 9000 since 1998 and CD laser had been replaced 4 times during these 15 years. Total costs more than 1500 EUR. This is only acceptable because I love the design of BS 9000.

 

 

In 1998 I gave my 5 years old CD player from Sony to my sister. It works fine until today.

 

 

My wife has a cheap CD player from JVC in her kitchen for more than 10 years without any problems.

 

 

Don't tell me something about high quality of B&O products. B&O is a lifestyle and a design company!

 

Greets

 

Räuber

You can always find examples like that - with any brand...

I have a BC 9500 that's fully functional after 20 years -and a Beogram CD 3300 that's even older -still working.

My sister once bought a quite expensive Technics CD player that 'died' after 4 years...

Anyway - as mentioned many times before. It's mostly a capacitor problem - not a dead laser.

- and those old Philips mechs, that B&O and lots of other companies used back then, were some of the best.
You can read more about them here:

http://www.thevintageknob.org/philips-CDM.html

Don't tell me about poor build quality of older B&O equipment.
Lots of Beoworld members have B&O equipment thats 20-30-40 years old.

Steffen
Top 75 Contributor
Denmark
Posts 1,408
OFFLINE
Bronze Member
Steffen replied on Sun, Nov 17 2013 10:10 PM

chris:

Come on people when you pay 3000 euros for a b&o system it should never need any kind of repair.

 

How will you define 'never'?

Nothing lasts forever - especially not electronics.

The question is, if it is worth repairing.

 

DoubleU
Top 150 Contributor
Posts 562
OFFLINE
Bronze Member
DoubleU replied on Sun, Nov 17 2013 11:38 PM

Steffen:

Anyway - as mentioned many times before. It's mostly a capacitor problem - not a dead laser.

Where did you get that info? If somebody says that electronics is failing and not the laser doesn’t mean it is common. I think most people who own/owned a BS9000 been there, including me. If it was just a capacitor, there would be no need to replace the mechanics. Capacitors don’t wear out in 4 years. The laser in a BS9000 does if your unlucky like Raeuber was. 4 replacements in 15 year is hard to accept with answers like ’’nothing last forever’’. The DVD1 was also not the player that had the best laser.

Steffen:

Don't tell me about poor build quality of older B&O equipment.
Lots of Beoworld members have B&O equipment thats 20-30-40 years old.

Well, those days are over. You cannot simply compare electronics in those days with equipment nowadays. All the defective components from then are still available and can simply be replaced. Electronics nowadays have a way shorter life span. There is no repairing at component-level anymore. Too time consuming, lead-free soldering, smd. Manufactures of chips or pcb’s do not make the same components for decades. They move on. Further, you have to deal with software, programming, dated technology, etc. With that said, you can imagine it’s impossible to service the new stuff for the next 20 years. Not even close to 10.

wonderfulelectric
Top 150 Contributor
Posts 563
OFFLINE
Bronze Member

Yes the BS9000 is very high maintenance. I hope they will one day do a super edgy version where every disk is now replaced with screens displaying different cover arts whereby honoring a bygone era.

Steffen
Top 75 Contributor
Denmark
Posts 1,408
OFFLINE
Bronze Member
Steffen replied on Mon, Nov 18 2013 12:43 AM

DoubleU:
Where did you get that info? If somebody says that electronics is failing and not the laser doesn’t mean it is common.

I have the info from several sources - e.g. member (Moderator) 'dillen' here on Beoworld, who has repaired LOTS of older B&O CD players.
He has said several times that he has never seen a 'dead' laser on those older Philips mechs. (Not even on  the 'newer' Ouverture, 3200 etc.)

You could also take a look at the link in my post above, talking about the 'everlasting' laser (well -offcourse it's not everlasting - longlasting will be a better word) - and several other places on the net you can find info, if you care to look.

Offcourse there will be some defective, burnt out lasers now and then. But allow me to turn your postulate around:

If somebody says the laser is failing and not the electronics doesn't mean it's common. Wink

DoubleU:
Well, those days are over. You cannot simply compare electronics in those days with equipment nowadays.

I agree that electronics nowadays is not build to have a long life - but I was mostly responding to those who were complaining about B&O being crap -even many years back.
It is even possible to repair 'newer' systems like the Ouverture, 3200 etc. even though they have SMD components - but B&O repair shops has never bothered to repair those. They just changed the whole CD-mech.

DoubleU
Top 150 Contributor
Posts 562
OFFLINE
Bronze Member
DoubleU replied on Mon, Nov 18 2013 8:49 AM

And I was responding to the BS9000. You can’t ignore the fact this player has more problems than others. If a disc does not spin up, most likely there is to much dust build up or the laser is dying. Leaking capacitors are more common for the older models. 

Leslie
Top 25 Contributor
the Netherlands City
Posts 5,423
OFFLINE
Silver Member
Leslie replied on Mon, Nov 18 2013 4:37 PM

Exactly, shame on you B&O!

Brengen & Ophalen

Beobuddy
Top 25 Contributor
Utrecht, The Netherlands
Posts 3,972
OFFLINE
Founder
Beobuddy replied on Mon, Nov 18 2013 9:57 PM

You can't blame B&O for the build quality of the laser pickup elements.

Who could predict that those elements would last less longer? They are depending on what Philips back then could supply them, like the older more reliable CDM4.

Faults are more cracked solderjoints at the laser's flex, I did repair a VAM1255 with special glasses, flux and a soldering iron with the smallest tip.

Leslie
Top 25 Contributor
the Netherlands City
Posts 5,423
OFFLINE
Silver Member
Leslie replied on Mon, Nov 18 2013 10:23 PM

So crappy laserunits then inside of a B&O product?

Brengen & Ophalen

Dillen
Top 10 Contributor
Copenhagen / Denmark
Posts 13,191
OFFLINE
Founder
Moderator
Dillen replied on Mon, Nov 18 2013 10:52 PM

DoubleU:

Leaking capacitors are more common for the older models. 

That's not my experience when it comes to the servo boards.
The capacitors in the older boards tend to dry out rather than leak.
No servo circuit related capacitors leak more than the newer SMD ones.
They bulge and eventually pop open and leak.
When replacing you will often find black traces and remains of gunk where the caps sat on the board.

I have replaced only very few laser blocks in my time but I don't do many of the newer things.
I have replaced one laser in a Beosound 9000 once, though, but I seem to remember it was because
of physical damage rather than use or wear.

Martin

Page 1 of 2 (41 items) 1 2 Next > | RSS