Need help - adjusted the pot near lens

[MP7301]

Hi!
I adjusted the pot near the lens on my denon ,it's now running very good,but some people says that it will not run for a long time and it will broke anyway.
As i now the pot i adjusted now gives more power to the lens and it will burn out?
So I need to know is that true or not?

[4tified]

Hi!
I adjusted the pot near the lens on my denon ,it's now running very good,but some people says that it will not run for a long time and it will broke anyway.
As i now the pot i adjusted now gives more power to the lens and it will burn out?
So I need to know is that true or not?

While increasing the power to your laser may shorten the life, I've not had this happen personally. I've heard people say claim otherwise, but I performed this on my Sega Saturn (to read re-writable discs) and it still works fine today. I would imagine your Denon transport and laser are premium quality and should endure either way.

Correct me if I'm wrong.

[Nakdoc]

You did raise the laser power. it will work until it doesn't. The pickup is probably a Sony KSS type.

[MP7301]

But will it not broke faster than with the factory adjustment?And Where shoud be the problem,why i needed to rise the power to lens to get it work better?

[4tified]

But will it not broke faster than with the factory adjustment?And Where shoud be the problem,why i needed to rise the power to lens to get it work better?

Well, you shouldn't have to unless it's already having issues. What issues are you having?

[MP7301]

After the adjusting there is no problems,butbefore it was'n playing all track's(it just skipped some tracks...) and it was very slow...

[Socal Sam]

Your laser is dying. Increasing the power will give you some more life. Go with it until it gives up or sell now while still working.

[MP7301]

It is dying about ten years,but it's still live :D
But is this a problem for all Vintage CD players?

[Socal Sam]

It is dying about ten years,but it's still live :D
But is this a problem for all Vintage CD players?

No. Just the one's with lasers that are losing intensity.

[extraterrestrial]

Jacking up the intensity of the laser diode can compensate for aging of the diode itself and for increased clouding of the optics due to ever-present dust and the infamous greasy film that we are all familiar with (on anything glass.)

It is true that this will shorten the life of the diode, but then -- if the power hadn't been cranked up -- its life would've ended right then and there anyhow. So, really nothing is to be lost by cranking up the laser power.

On some JVC pickups you can actually clean the working surface of the beam-splitting prism inside the pickup. This is because you can gently push the lens aside on many JVC pickups without destroying the suspension of the lens, and also because ultra-miniature cotton swabs are occasionally available.

extraterrestrial

[Warped Bezel]

No. Just the one's with lasers that are losing intensity.

Yeah but I've got Jack Sprat Syndrome with my Pioneer DV-C503 and 603 changers, one can have no CDs, the other no DVDs*Spin*

I need Retsyn for two-two-two diodes in one!

[Warped Bezel]

Ahhh, the "good ol' daze" when your cleaned the lenses when the pot was too strong...

Well, I've heard that but I was busy after schol watching cheerleader practice and having a root beer after afterward.

At A&W, staffed by mostly cheerleaders.

Not stupid*check* Ours wasn't originally known as "The Doll House" for nothing.

[Pacific Stereo]

The relationships of all the alignments in the player will be affected by the output of the photodiodes in the head. More output does way more than one might think. For example, more output means more input to the tracking and focus servos, changing the gain values. All sorts of things shift when output goes up.

It could very well be that what was really needed was an alignment, and raising the laser output has masked the true problem. And now, you have started the cascade of LD degradation by taking that output up. If the head is a cheap and available KSS-series part, no worries. But if it's, say a KSS-151A, well, BIG worries.

[Skywavebe]

Just so you know like PS has stated, the turning up output power any old way is a chance that you will shorten it's life but what you may not realize is that the noise level also goes up just like increasing the tape playback when it is not needed. Optical pickups can fail due to lack of emission from a Pickup but I have had just as many lose one of the 6 reception diodes that left the unit wondering where the laser should be pointed. In any case, those who know what's going on- this laser output should be adjusted either with a laser power meter or in the lack of that by effect in watching the eye pattern (RF by some) so that the peak to peak value does not exceed what is specified in the manual. If the eye RF waveform is better than 1.5 Vpp then I have to say it is too high. To those that just adjust things to work- I say turn it up all the way and get twice as much music out of the unit.
This is like adjusting reel tensions on a X1000,2000 without first verifying the sensor voltage positions and the tensions- adjusting on the fly often times wears more on the motor or power supply- there is a diode that will go out if tensions are too high. Same idea. I would try cleaning the lens first and then measure the RF output with a good disc. Some discs are made defective and the machine is not at fault.

[shadowlord]

do you have the problems with all CDs? or only with specific type.
old ones, new ones, store bought, CD-R , CD-RW?

how old is your Denon ?