SL-P1200B schematics - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 9th October 2013, 07:22 PM   #1
diyAudio Member
 
Join Date: Feb 2013
Default SL-P1200B schematics

Hi there - Andy here. First post to the site, so about me. I run the Automotive part of an EMC test house business, and came to that via a certain Brit audio manufacturer and the Defence industry. Now the audio is done in my workshop, or in the labs at work when no-one's looking! I either design / build purely for myself, or refurb old, but quality audio kit. The latest is what I could do with help with! See below.

I've been able to find schematics for the SLP-1200, but not the 'B' variant, which is quite a different animal. It has the larger displays, the rotary pitch control and 'fader start' switch.

It arrived on the bench as 'dead' - which it wasn't, it was just playing dead with no displays or function. However, +/-12V and some other supplies were present, but +5V was down. A regulator and pcb fuse sorted the +5v, and brought back the displays and most switching function LEDs, but the player still refuses to - well... play! (or indeed drive the transport in any way at all)

I expect the event which took out the pcb fuse and regulator is probably the one I'm looking for, but without the correct diagrams I'm still flying blind.

I'd like to sort this out as she's a beauty, so if anyone can furnish me with diagrams I'd be eternally grateful!
  Reply With Quote
Old 9th October 2013, 09:59 PM   #2
diyAudio Member
 
Join Date: Dec 2012
Location: The Jurassic Coast, England. GB
Send a message via Skype™ to JonSnell Electronic
I have never heard of the "B" type. I have manuals for the "K" type only.
__________________
www.flyingmole.co.uk For World Wide support for Flying Mole, Class D, Refurbishment and Repairs. www.jonsnell.co.uk
  Reply With Quote
Old 12th October 2013, 08:32 PM   #3
diyAudio Member
 
Join Date: Feb 2013
This is it. SL-P1200B

Click the image to open in full size.
  Reply With Quote
Old 15th October 2013, 02:12 AM   #4
diyAudio Member
 
Join Date: Oct 2006
You might try comparing schematics of the SL-P1300, if you can find them. I've worked on P1200's & P1300's, but never heard of a P1200B, either. Usual cause, at least ten or so years ago, for no-drive-ops, on these machines was improper operation of the door close sensing switch, a very simple thing. Can't recall the specifics of it, but seem to remember it being a bit fiddly to get working quite right if it was not. At this age, though, it's liable to be, or also be, cascade failure of all of the Matsushita/Panasonic electrolytic caps, which won't appear bad at all until you remove them from the board & find a white chemical leakage residue around one or both leads as each exits the cap body. You may have a whole lot of caps to replace.
  Reply With Quote
Old 15th October 2013, 06:49 AM   #5
diyAudio Member
 
Join Date: Feb 2013
Thanks Stephen. I'll take a look at SL1300 first.
  Reply With Quote
Old 15th October 2013, 06:56 AM   #6
diyAudio Member
 
Join Date: Feb 2013
Incidentally, here's a completed listing from eBay for a 'B'. Externally, it differs quite a lot from the others (and the SL1300 sadly)

Technics SL P1200B SL P 1200B Professional CD Player Balanced Outputs Faulty | eBay
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
SL 3505 mekaiver Car Audio 40 11th February 2014 08:50 AM
SL's Pluto sdclc126 Multi-Way 122 22nd January 2011 04:08 AM
BOSE Schematics DENSO Schematics packer Car Audio 6 25th June 2007 10:55 AM
Technics SL-P350 schematics anyone? nilsomat Digital Source 0 29th June 2006 07:54 PM
A Second look at SL's PLUTO ScottG Multi-Way 26 25th October 2005 11:48 PM


New To Site? Need Help?

All times are GMT. The time now is 04:54 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2