Carver tl-3200 skipping at specific points

[AndrewJohn 10,913]

15 hours ago, jmcipale said:

*sigh*

The definition of insanity is doing the same over and over, and hoping for different results. This popped up on ebay (I am still searching for my 'White Whale' of a DLBA1):

 

 

Part of me says 'Go for it!' but part of me is wary. It's only $53 (free shipping from China). It looks nearly identical to the KSS-152A that I tried (with no success). Maybe I should just bu the NAD 5340 that is being auctioned for $99.00. I can even drive to Bend, OR to retrieve it.

 

I know the feeling..., I hate to drop a project until I achieve success.  

 

One thought, though..., why not buy a parts machine, and harvest the entire transport mechanism?  Changing a laser requires calibration as I understand the repair (surgery) but harvesting the entire transport, and transplanting it into your unit might be cheaper, and more successful..., yes, a $50 parts unit off of ebay could be broken..., and not work - but it's the same gamble.

 

FWIW, I've fixed a dozen SD/A 490t units this way... (I also learned that the transport unit (the CD disk drive) was common between the SD/A 410, SD/A 450 CD players, so I got good at buying the cheaper units, harvesting the CD drive, and creating a $300+ tube-based outcome in the fixed SD/A 490t unit!  (I've sold more than one for over $500, with less than $200 invested to create it from harvested parts.

 

Hoping you come out on top of this one! 😉 

[jmcipale 117]

@AndrewJohn - been there. Done that. One time the transport was FUBAR, the other laser was just as fried. I can't even find an NAD 5340 (which used the same laser). All of the TL-3200/3220 I see on fleabay have the same issue: Wont read a disc. I stop there. It would be nice if someone would get the rights to build new lasers, but then again, how many devices used the DLBA-1, and how many NEED a new laser? Would it be a worthwhile investment (from a manufacturing perspective)?

Edited March 21 by jmcipale

[AndrewJohn 10,913]

21 hours ago, jmcipale said:

how many NEED a new laser?

I don't think lasers fail all that much. I could be wrong, but if lasers were at high fault rate, CD's may have never taken off..., and, as you note, some enterprising entrepreneur might have by now, developed an aftermarket set of products for the big 5 makers' lasers, to fulfill demand.  

 

I draw the analogy with car parts..., the demand for old car parts replacing the 7-year supply chain for car parts required of automakers, has been completely filled by third parties.

 

For CD players, in my experience with dozens across my bench, I have never replaced a laser..., the failing "read" is almost always due to something else, either mechanical or electronic. That's not to say it's not possible, just I've never seen it happen and I buy, fix, and sell a lot of CD players in my spare time.

 

[jmcipale 117]

You hit on a thought i have had as well. These don't just 'fail'. Is a transistor drifting from age? Is power-regulation wavering? Etc, etc, ad nauseum.

[AndrewJohn 10,913]

On 3/22/2026 at 2:51 PM, jmcipale said:

You hit on a thought i have had as well. These don't just 'fail'. Is a transistor drifting from age? Is power-regulation wavering? Etc, etc, ad nauseum.

 

That's my sense.  If you look at, say, the SD/A 490t laser assembly, there's a small PCB with components soldered on it... I've never disassembled it.  And, the wires, then go to the main PCB, in a section that does conversion of the bytes read on the CD, into something that the system can send on to the preamp.  The DAC is on that part of the PCB layout.  Any number of (the many!) caps, resistors, chips, etc. on that part of the main PCB, could be causing the system to indicate a "READ Error", which knee-jerk thought is to say the laser is bad, and not reading the disk - when really, the data is reading fine, but isn't getting processed properly, downstream.

 

I wish I were smarter..., I'd like to learn and really dig into this more - I'm just either lack the mental capacity, or am too busy these days to want to invest the time and learn..., so take my thoughts here with a grain of salt. 

[jmcipale 117]

@AndrewJohn I did a little more digging on this (more than I care to admit) and what is coming up continually is the DLBA1 is essentially degrading. laser diodes, like other diodes/semiconductor devices age out and weaken. The DLBA1 is 'ancient' technology and is no longer being made (we all know that, sadly). Even 'organ donors' are not reliable (too often, the symptoms of the donor are the same as I have described). This leaves me with one of a handful of choices:

• Keep the Carver as a museum piece.
• Play ONLY new CDs or play it occasionally (and live with the bouncing laser).
• Take a completely radical direction and 'restore' the unit with a new transport/laser/DAC and tie that into the existing Carver electronics (think replacing a ford 289 V8 with a chevy small block 350 V8).

Damn you, Bob Carver! Why did you make me care for the sound of this unit so much!?
🤣

[AndrewJohn 10,913]

On 3/24/2026 at 11:29 AM, jmcipale said:

@AndrewJohn I did a little more digging on this (more than I care to admit) and what is coming up continually is the DLBA1 is essentially degrading. laser diodes, like other diodes/semiconductor devices age out and weaken. The DLBA1 is 'ancient' technology and is no longer being made (we all know that, sadly). Even 'organ donors' are not reliable (too often, the symptoms of the donor are the same as I have described). This leaves me with one of a handful of choices:

• Keep the Carver as a museum piece.
• Play ONLY new CDs or play it occasionally (and live with the bouncing laser).
• Take a completely radical direction and 'restore' the unit with a new transport/laser/DAC and tie that into the existing Carver electronics (think replacing a ford 289 V8 with a chevy small block 350 V8).

Damn you, Bob Carver! Why did you make me care for the sound of this unit so much!?
🤣

 

I'm curious, what is the date on the back sticker..., does it have a manufacturing date?

 

The other option..., would be to just pick up another working unit off eBay or offer-up, or reverb..., and use that one.  😉 

 

 

[jmcipale 117]

Been there, tried that... the working units ALL GO for $400+. Organ donor units tend to have the same issue (unable to read/skipping CD). Besides, I am semi-retired and I need a hobby. 😁

[AndrewJohn 10,913]

Side question for you..., have you ever hooked up a musical fidelity tube buffer in line with the output of your TL-3200?

 

Before I picked up an SD/A 490t with it's integral tube buffer, I had an SD/A 360 5 disk carousel unit.  Years ago, a member here (I forget who) suggested I do that, and WOW, it made what I thought was a great sounding Carver CD player, sound even better!

 

They make a new model, the "X-Tube," which goes for $599 new, but I just picked up the earlier model the X10-D off of eBay - the prices are climbing..., but there are dozens of knock-offs in kit form you can get on eBay too, for under $50.  They too sound great with an early CD player. they need a chassis, also pretty cheap to pick up on eBay.

 

...yes, I'm feeding your hobby addiction... !! 😉 

 

 

 

[jmcipale 117]

@AndrewJohn I cant say I have ever seen/considered such an add-on. I am still trying to wrap my 2 brain cells around integrating a new transport into my existing 3200! 

😝🤣

[Brian K. Totten 425]

4 hours ago, AndrewJohn said:

 

They make a new model, the "X-Tube," which goes for $599 new, but I just picked up the earlier model the X10-D off of eBay - the prices are climbing..., but there are dozens of knock-offs in kit form you can get on eBay too, for under $50.  They too sound great with an early CD player. they need a chassis, also pretty cheap to pick up on eBay.

 

...yes, I'm feeding your hobby addiction... !! 😉 

 

 

 

 

I needed a new project!
Looking on AliExpress this same kit is $10 cheaper and free shipping -- if is coming from offshore at ebay or Ali, the wait will be the same.... Now for the tubes.
This should pair well with my TL-3300. I have squandered more money for less value on other things 🙂