Please audio-help wanted! - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, 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 28th May 2004, 12:41 AM   #1
diyAudio Member
 
Join Date: May 2004
Location: Toronto
Default Please audio-help wanted!

Does anyone out there have the service manual for a marantz 2250?I would appreciated alot any help as I am desperately trying to restore this beauty.I am also in a really bad need of the service manual for a vintage AKAI-570D cassette deck.If anyoune needs any other analogue manuals I have a few.Please any help would be appreciated alot Thank you all for your time!
  Reply With Quote
Old 4th June 2004, 10:34 AM   #2
diyAudio Member
 
Join Date: Jul 2003
Location: Dona paula, Goa
Default Akai 570D

What is the condition and problem with the 570D.

As far as I remember, it's a transistorised tape deck and should pose no problem in repairing without schematic, but for proper approach...

Mention details... will try to help.

Gajanan
  Reply With Quote
Old 4th June 2004, 06:04 PM   #3
diyAudio Member
 
Join Date: May 2004
Location: Toronto
Thank you for replying to my thread.In the AKAI-570d the sensi control system is dead.You know the buttons that you touch and work.(play,stop,etc..)I opened once the transport to change a belt
and after that the buttons are dead.They used to work but now I dont know what happend.Any help would be appreciated.Thank you again.
  Reply With Quote
Old 7th June 2004, 04:51 AM   #4
diyAudio Member
 
Join Date: Jul 2003
Location: Dona paula, Goa
Default Akai 570D

Looks like ur a DIY amateur...
Hope none of the wires are broken and all the connectors are intact.

The basics...
The electrical things in a mechanism mostly are
motor, solenoids, rotational sensor (if there is a digital counter and/or other functions) and microswitches.

Open up the set (power disconnected all the time)and make a good long observation of everything below the plate(patience is highly required). Find out if some microswitch is bent/wrongly positioned due to some lever touching it, due to improper reassembly. If the fault is found, open the assy, as and upto the limits done earlier and rectify.
The switches mostly will be leaf type (the copper plates with a contact material welded), and the copper should not touch the metal of the mechanism. Also check the cassette detection switches.
Satisfying that everything is right then proceed further...with the mechanism intact
Operate one of the solenoid(there may be 2 or 3) plungers manually and keep rotating the flywheel by hand in the correct direction. Once you find the wheels are rotating let go of the plunger, find out what the mechanism does and whether it is the correct way like would be in play, rew or ff.
Proceed for other solenoid(s) and analyze further.

Gajanan
  Reply With Quote
Old 7th June 2004, 05:16 AM   #5
diyAudio Member
 
Join Date: May 2004
Location: Toronto
Wink AKAI GXC-570D

Thank you so much for your help.I really appreciate your time,I will try your directions right away.

Thank you Gajanan!
  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
Wanted Cambridge Audio CD3 paul_peraic Swap Meet 1 5th December 2009 07:55 PM
Wanted: 0.33F MKP, 1R8 Mox or audio... Malefoda Vendor's Bazaar 0 29th April 2008 01:04 PM
audio research wanted !!!! Highender Swap Meet 2 13th March 2008 08:44 AM
Wanted: LC-Audio ZAPulse 2.2 SE tbr Swap Meet 4 27th July 2005 10:05 AM
Wanted: Audio Alchemy DLC. G Swap Meet 0 19th June 2004 11:15 PM


New To Site? Need Help?

All times are GMT. The time now is 09:37 PM.


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