It is currently 03 Dec 2021, 10:58




 Page 1 of 1 [ 11 posts ] 
Author Message
 Post subject: [CLD-97] Laser pickup problem (SOLVED!)
PostPosted: 20 Oct 2021, 07:09 
Third post and above
Third post and above
User avatar

Joined: 06 Aug 2007, 06:32
Posts: 5
Location: United States
Has thanked: 4 times
Been thanked: 1 time
A few days ago, I opened up my CLD-97 to clean the lens because I was having severe playback issues (staticky audio playing laserdiscs, CDs almost never playing at all). I gently wiped it off with a q-tip, and it worked fine again, for a few minutes. Then CDs started skipping and LDs started having bad tracking problems.

Now, it just makes this constant noise any time the player is turned on. I opened it up to see what was going on, and the laser pickup assembly keeps moving up and down (tilting) non stop:



Does anyone know why this might be happening, and what I could do to fix it?


Last edited by adimifus on 28 Oct 2021, 07:07, edited 1 time in total. _________________
Pioneer Elite CLD-97 w/ AC-3 mod
Pioneer CLD-D504
Yamaha DDP-1 w/ digital out mod
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 20 Oct 2021, 15:31 
Hardcore fan
Hardcore fan
User avatar

Joined: 13 Aug 2018, 03:18
Posts: 1214
Has thanked: 324 times
Been thanked: 399 times
For lens cleaning you need a chamois swab and 91% or greater isopropyl, and only clean it if visibly dirty.

That being said, does moving ribbon cable at any point change this behavior?
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 20 Oct 2021, 16:56 
Third post and above
Third post and above
User avatar

Joined: 06 Aug 2007, 06:32
Posts: 5
Location: United States
Has thanked: 4 times
Been thanked: 1 time
cplusplus wrote:
For lens cleaning you need a chamois swab and 91% or greater isopropyl, and only clean it if visibly dirty.

That being said, does moving ribbon cable at any point change this behavior?


It was visibly very dirty-- It definitely needed to be cleaned.

This problem started gradually and intermittently before eventually just doing it all the time.

What do you mean by "moving the ribbon cable"? Poking at it or gently nudging it doesn't seem to change anything.
_________________
Pioneer Elite CLD-97 w/ AC-3 mod
Pioneer CLD-D504
Yamaha DDP-1 w/ digital out mod
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 21 Oct 2021, 01:17 
Hardcore fan
Hardcore fan
User avatar

Joined: 13 Aug 2018, 03:18
Posts: 1214
Has thanked: 324 times
Been thanked: 399 times
adimifus wrote:
What do you mean by "moving the ribbon cable"?

Poking/nudging. Cables are known to go bad.

Someone posted this long ago:
https://alt.video.laserdisc.narkive.com ... top-moving
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 21 Oct 2021, 02:58 
Third post and above
Third post and above
User avatar

Joined: 06 Aug 2007, 06:32
Posts: 5
Location: United States
Has thanked: 4 times
Been thanked: 1 time
cplusplus wrote:
Poking/nudging. Cables are known to go bad.

Someone posted this long ago:
https://alt.video.laserdisc.narkive.com ... top-moving

Thanks for the link. That seems like exactly what's happening to me, except that the laser itself still seems to work fine (it will still play discs, but it cuts in and out in time with the tilting).
_________________
Pioneer Elite CLD-97 w/ AC-3 mod
Pioneer CLD-D504
Yamaha DDP-1 w/ digital out mod
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 21 Oct 2021, 03:32 
Hardcore fan
Hardcore fan
User avatar

Joined: 10 May 2007, 03:12
Posts: 1378
Location: United States
Has thanked: 0 time
Been thanked: 223 times
Trying to remember how I fixed this before, memory starts to go when your in your 60's. I believe the op amp that drives the tilt motor on the main board went bad and I had to replace it.
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 21 Oct 2021, 04:38 
Hardcore fan
Hardcore fan
User avatar

Joined: 13 Aug 2018, 03:18
Posts: 1214
Has thanked: 324 times
Been thanked: 399 times
Thanks for sharing that Kurtis. Definitely a weird failure.

I think that would be IC804 (LA6510) in FTS section of main board in the attached image. Tilt error comes in to it on pin 7, and tilt motor out of pin 9.
Attachment:
CLD-97_TiltDrive.jpg
CLD-97_TiltDrive.jpg [ 30.99 KiB | Viewed 250 times ]
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 21 Oct 2021, 05:29 
Third post and above
Third post and above
User avatar

Joined: 06 Aug 2007, 06:32
Posts: 5
Location: United States
Has thanked: 4 times
Been thanked: 1 time
Thank you! I'll try replacing that chip.
_________________
Pioneer Elite CLD-97 w/ AC-3 mod
Pioneer CLD-D504
Yamaha DDP-1 w/ digital out mod
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 26 Oct 2021, 03:08 
Third post and above
Third post and above
User avatar

Joined: 06 Aug 2007, 06:32
Posts: 5
Location: United States
Has thanked: 4 times
Been thanked: 1 time
Replacing the LA6510 chip fixed the problem! Thanks for all the help! :clap: :thumbup:
_________________
Pioneer Elite CLD-97 w/ AC-3 mod
Pioneer CLD-D504
Yamaha DDP-1 w/ digital out mod
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem
PostPosted: 26 Oct 2021, 04:11 
Hardcore fan
Hardcore fan
User avatar

Joined: 13 Aug 2018, 03:18
Posts: 1214
Has thanked: 324 times
Been thanked: 399 times
Cheers to Kurtis. His memory seems fine!
Offline
 Profile  
 
 Post subject: Re: [CLD-97] Laser pickup problem  Topic is solved
PostPosted: 26 Oct 2021, 22:25 
Hardcore fan
Hardcore fan
User avatar

Joined: 10 May 2007, 03:12
Posts: 1378
Location: United States
Has thanked: 0 time
Been thanked: 223 times
Good to see my memory hasn't totally failed. Three more years to retirement and then the time to really spend on player repair. Hopefully I'll make it.
Offline
 Profile  
 
Display posts from previous:  Sort by  
 Page 1 of 1 [ 11 posts ] 


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to: