Question about Sony CCP1300 Monaural 1-to-3 16x Master Copy Unit Single Dual Cassette Deck
I bought a used Nakamichi CR-4 from eBay and it turns out that it only records on the Left channel and not on the Right channel.
When I use the manual calibration function present on this deck, it calibrates the Level to 0db but only goes upto -20db when Bias is calibrated using TDK SA cassette even after turning the Bias knob clockwise to the max. I have also tried calibrating using an EX tape with the correct tape type and equilizer setting but still cannot calibrate the Bias to 0db.
I have aligned the playback head using test tapes but when I try to align the recording head height and azimuth using 400Hz and 15KHz test tones, it only outputs to the Left channel and I only get a very small voltage on the Right channel as compared with the left channel.
Also, when recording the 15KHz test tone the voltmeter displays 15KHz on the left channel but it barely registers 1KHz (and that is also fluctuating between 500Hz and 1KHz) on the right channel.
I did go ahead and aligned the recording head based only on the output readings of the Left channel in the hope that it may bring the Right channel somewhat back into alignment if it was very mis-aligned, but to no avail.
Any thoughts on what could be wrong with the deck, any suggestions on how to fix it? Any help will be geratly appreciated.
Thanks & best regards,
I AM AN AUDIO CASSETTE DUPLICATOR TECH,AND LAST WEEK AFTER USING MY IN CASSETTE DUPLICATOR TASCAM 2640,I FIGURED THAT I LOST ALMOST 95% OF ONE CHANNEL AFTER CLEANING WITH THE TASCAM HEAD CLEANER IT REMAINS THE SAME,SO I DECIDED TO USE CLEAN ACETON,AND I WAS SURPRIZED THAT THE DEAD CHANNEL CAME BACK LIKE A HERO WITH NO PROBLEM.
AMAZING WHAT A BIT OF ACETON CAN DO.
Posted on Dec 10, 2008
Hmmm.....heres a really stupid question but........is the head clean ? There may be a bit of oxide shorting the one side of the head out. Try cleaning the head with a q-tip and some 99% pure isopropyl alcohol. If you have done that ( you seem to be more knowledgeable than most ), I would suspect either the circuit that drives the right channel record head, or the head itself. Is the head running flat against the tape?. Is there a record/play relay or record relay somewhere in the circuit ?. I think at this point you really need a schematic. Do you have the AC oscillator signal ( bias ) present on the right record head ?. I would try this first, then look into a manual.......Good luck...Rob
Posted on May 09, 2008
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 01, 2014 | Nakamichi Audio Players & Recorders
Jul 22, 2012 | Nakamichi SoundSpace 8 System
Jan 05, 2011 | Pioneer GM5400T 2-Channel Bridgeable...
Jul 16, 2009 | Nakamichi AV-10 Receiver
Feb 18, 2009 | Nakamichi SoundSpace 8 CD Player
Jan 10, 2008 | Samson G-TRACK USB RECORDING MICROPHONE...
Jul 13, 2007 | Nakamichi PA-504 Car Audio Amplifier
Apr 03, 2009 | Sony CCP1300 Monaural 1-to-3 16x Master...
661 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: