The Denon DN961

[argibbo]

Hi
I have a Denon Pro CD Player for repair. I have the service manual. I have replaced the laser. The machine is in test mode. There is very low laser output. LD on pin goes high when activated. Vcc is present (+5V). Activating focus search does not result in focus lock. The manual says there is a solder blob on the LD to protect it from ESD. I can't find a blob on the LD itself. Is there one on the laser assy PCB?. Looked but can't see. All my experience is on Pioneer (10 years engineer @ Reference Point dealer) So I'm unfamiliar with Denon / Sony derivatives. Am I missing something? Any help would be very much appreciated.
Cheers.
Andy

 

[Mooly]

Many KSS series pickups have a shorting link... it's on the flexiprint or PCB shorting two adjacent tracks out.

That would give NO output, not low output.

If you have replaced pickup and output is low you need to check the APC (laser auto power circuit) area.

 

[argibbo]

Cheers. Mooly (Round The Horne?)
Was thinking along those lines and fortunately have the circuit. The white ribbon cable buzzed out ok (first thing I checked) I'll be back hopefully with the answer.

Thanks again.

Andy

 

[Mooly]

The Ballad of the Woggler's Moulie.

 

[argibbo]

The Ballad of the Woggler's Moulie.

I have an LP of Ramblin' Syd. I loved Round the Horne. People get asked, using small words containing lots of 'f's and 'o's, to leave the workshop when they repeat on Radio 7, especially when Julian & Sandy are on.

Can do you a copy if you like?

Andy