Tapeheads Forums


Go Back   Tapeheads Forums > Tape, Taping and Tape Machines > Reel To Reel

Reel To Reel All discussions pertaining to reel to reel decks including general usage, recording, playback, servicing tips and blank tape.

Universal Capstan Motor
Reply
 
Thread Tools Display Modes
  #1  
Old 11-22-2013, 05:36 PM
robertc2's Avatar
robertc2 robertc2 is offline
TapeHeads.Net Member
 
Join Date: Oct 2013
Posts: 42
Teac 3340s recording problem

I noticed something amiss on my Teac 3340s during calibration while trying to set bias. Instructions call for setting unit in record mode with a -8db tone at line in jacks, and turning bias capacitor screw clockwise until a decrease of .5db is noted. This worked on all channels but one. On the problem channel the voltage continues to rise until the capacitor screw is at maximum. The issue is that the channel in question won't record. Record light does come on, but nothing goes to tape. Previous content will erase. The channel works in playback.
Reply With Quote
  #2  
Old 11-22-2013, 06:09 PM
Skywavebe's Avatar
Skywavebe Skywavebe is online now
Skywave Tape Deck Repair
 
Join Date: Jul 2008
Location: Bensenville, IL
Posts: 7,125
As I have said time and before the manuals procedure is for the assembly line and not the field. Set record level at OVu after it is set for correct reading in the Monitor section then switch from, 400Hz to 10 KHz and make the levels even then test at 16 KHz and 20 KHz to get all inside of the allowed variance you are going for- I use plus or minus 2 dB.
The record light might just be an indicator out if the track is erasing. I would spray the Sync switches and record switches with Deoxit. These machines are now getting to the point that they need a Technician as some of the easy problems are trading in for more complicated ones.
I have one on the bench now. I never deal with the over bias method as that is an approximate way to set bias not the exact way.
__________________
Best regards,

Sam Palermo, BSEE, past Broadcast Engineer
Skywave Tape Deck Repair- Chicago area
(630)616-0932 Office/ 708-334-2260 Cell, E mail:skywavebe@sbcglobal.net
Past Teac/Tascam Lead Service Technician at Chicago Factory Service still doing repairs.
http://www.thumbtack.com/il/bensenvi...tascam-repairs
Need Tape? http://www.splicit.com/index.html, The BEST SM are from Stereomanuals.com!
Reply With Quote
  #3  
Old 11-22-2013, 06:57 PM
Dumpster Diver's Avatar
Dumpster Diver Dumpster Diver is offline
Tape Cassette Abuser
 
Join Date: Apr 2012
Location: Picton ON, Canada
Posts: 1,998
Great info!
__________________
HELL ON REELS.
Reply With Quote
Reply

Thread Tools
Display Modes

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Teac 3340S jimmyg Reel To Reel 4 10-16-2014 08:27 AM
Teac A 3340S jimekiser Reel To Reel 13 09-09-2014 06:04 PM
Teac 3340s problem pluggedwood Reel To Reel 5 10-08-2013 06:58 AM
Teac 80-8 recording problem steelman Reel To Reel 0 05-04-2012 08:49 PM
Teac 3340S Help Please !!! javelin Reel To Reel 4 09-16-2011 11:40 AM



For more Tapeheads affiliates and links, see the Links and Resources page.
Would you like to see your company or site here?  CONTACT US


All times are GMT -7. The time now is 07:50 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2013, Tapeheads.Net. All rights reserved, no use of any element incorporated into this site without express written permission.