 
|
Page 1 of 1
|
[ 10 posts ] |
|
| Author |
Message |
|
mark K
|
Post subject: Zenith Have no Am/Fm where should I start?  Posted: Feb Mon 05, 2018 7:16 pm |
|
Joined: Apr Tue 07, 2015 2:36 am
Posts: 259
Location: Waterford MI
|
|
Thanks for looking at my post!
I just recapped this zenith I do have output in the amplifier its working good. But I have 0-Zero Am or Fm reception where would you start schematic Below,
Last edited by mark K on Feb Mon 05, 2018 10:24 pm, edited 1 time in total.
|
|
| Top |
|
 |
|
mark K
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Mon 05, 2018 8:59 pm |
|
Joined: Apr Tue 07, 2015 2:36 am
Posts: 259
Location: Waterford MI
|
|
doing some voltage testing
Q201 1st am-fm Amp
C=12v
B & E = I have NO volts
Where does the voltage come in from here?
|
|
| Top |
|
|
|
Norm Leal
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Mon 05, 2018 9:23 pm |
|
Joined: Jan Thu 01, 1970 1:00 am
Posts: 30745
Location: Livermore, CA
|
|
Hi Mark
Voltages start on page two, toward the right. Squares numbered 1 through 5, marked source. Measure there and work back through resistors and coils.
_________________
Norm
|
|
| Top |
|
|
|
mark K
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Mon 05, 2018 10:16 pm |
|
Joined: Apr Tue 07, 2015 2:36 am
Posts: 259
Location: Waterford MI
|
|
Thanks Norm Found it to much solder in the 10mfd cap it connected +/- together.
|
|
| Top |
|
|
|
egg
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Tue 06, 2018 12:00 am |
|
| Member |
 |
Joined: Jan Tue 31, 2012 1:55 am
Posts: 15278
Location: Mountains of Mourne. Ireland.
|
|
| Top |
|
|
|
mark K
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Tue 06, 2018 3:24 am |
|
Joined: Apr Tue 07, 2015 2:36 am
Posts: 259
Location: Waterford MI
|
Thanks for the one page schematic 
|
|
| Top |
|
|
|
fifties
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Tue 06, 2018 5:30 am |
|
| Member |
 |
Joined: Jan Thu 01, 1970 1:00 am
Posts: 37002
Location: SoCal, 91387
|
|
So is it fixed?
_________________
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\He Who Dies With The Most Radios Wins/////////////////////////
|
|
| Top |
|
|
|
mark K
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Tue 06, 2018 6:22 pm |
|
Joined: Apr Tue 07, 2015 2:36 am
Posts: 259
Location: Waterford MI
|
|
Yes traced it back to a cap I replaced had the solder connecting the +/- together.
|
|
| Top |
|
|
|
Tom Schulz
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Tue 06, 2018 6:53 pm |
|
| Member |
 |
Joined: Mar Sun 01, 2009 10:27 pm
Posts: 5478
Location: Ann Arbor, MI
|
mark K wrote: Yes traced it back to a cap I replaced had the solder connecting the +/- together. You should always not do that as often as you can.
_________________
Tom
|
|
| Top |
|
|
|
lorenz200w
|
Post subject: Re: Zenith Have no Am/Fm where should I start? Posted: Feb Wed 07, 2018 10:50 am |
|
Joined: Jan Mon 16, 2012 4:15 pm
Posts: 7057
Location: Near Brandon, Iowa
|
Tom Schulz wrote: mark K wrote: Yes traced it back to a cap I replaced had the solder connecting the +/- together. You should always not do that as often as you can. If not even more often!
|
|
| Top |
|
|
|
|
