Bias adjustment M-1.5t

If you have Carver repair questions, or can help other users with repairs, this is the place for it
Post Reply
User avatar
jjptkd
SILVER-7 TUBE AMP
Posts: 3050
Joined: Wed Sep 22, 2010 4:50 pm
Location: Snohomish, WA

Re: Bias adjustment M-1.5t

Post by jjptkd » Sun Jun 19, 2011 6:18 pm

\:D/ \:D/ Welcome to the forum!! \:D/ \:D/ I'm not a tech by any stretch of the imagination but I'm sure someone here can help, good luck!!
Oppo Sonica DAC
Sunfire TG-III
Sunfire 300x2
Klipsch Chorus II

angelod307
SILVER-7 TUBE AMP
Posts: 2654
Joined: Sat Jun 06, 2009 10:56 pm
Location: manning, sc

Re: Bias adjustment M-1.5t

Post by angelod307 » Sun Jun 19, 2011 6:31 pm

robert r might know as well as bill . otherwise this is a question is better suited for the other side.
CarverFest: I just go for the arts and crafts

User avatar
BillD
R.I.P. Friend
R.I.P. Friend
Posts: 7126
Joined: Wed Jun 06, 2007 8:29 pm
Location: The west's most mid-western town, Scottsdale, Arizona

Re: Bias adjustment M-1.5t

Post by BillD » Sun Jun 19, 2011 6:57 pm

Well, with that low a bias, you are probably getting crossover distortion (the positive/negative transistors shut off before the waveform crosses zero). What I would try is to move the adjustment trimmer a little while measuring and see if it increases (or decreases depending on where your probes are.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer

User avatar
engtaz
"TAZ"
Posts: 5390
Joined: Sat Jun 30, 2007 1:43 pm
Location: Tampa, FL

Re: Bias adjustment M-1.5t

Post by engtaz » Mon Jun 20, 2011 3:46 am

Welcome
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use

Post Reply

Return to “CARVER Equipment Repair/Help Forum”