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JVC JA-S44 dead
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Glynn
Jun 30, 2001, 10:02:07 PM6/30/01
to
I have a model JA-S44 JVC Stereo Integrated Amplifier. It was given to me
dead and I would like to for it not to be. I've checked fuses and all are
ok. What would be my next step? What else is there I could check before
hauling it to a repair shop? I checked voltages from the transformer, all
had outputs close to printed values (1-2 volts higher). Getting power to the
boards, but nothing's happening. I would like to be able to repair this
myself 1)for experience 2)i'm a college student with a tight budget. Any
info will be appreciated.
dead and I would like to for it not to be. I've checked fuses and all are
ok. What would be my next step? What else is there I could check before
hauling it to a repair shop? I checked voltages from the transformer, all
had outputs close to printed values (1-2 volts higher). Getting power to the
boards, but nothing's happening. I would like to be able to repair this
myself 1)for experience 2)i'm a college student with a tight budget. Any
info will be appreciated.
Glynn
Sofie
Jun 30, 2001, 10:57:12 PM6/30/01
to
Glynn:
Before you attempt to repair this yourself you may want to go to the website
for this newsgroup at
http://www.repairfaq.org/
There, with some searching, you will find a wealth of troubleshooting tips,
repair procedures, component testing methods and IMPORTANT safety
information that will help you to stay away from electrical shock hazards.
You have already checked the simple stuff, now you will need to verify that
the proper voltages are making it to the circuitry. In addition to what you
have already done you need to check for any open low ohm resistors, shorted
diodes and transistors, etc..... especially in the AF power output and AF
driver stages.
Spend some time at the repairfaq website to get yourself up to speed with
electronics troubleshooting and repair techniques.
Bear in mind that if you finally decide to take it to a service repair shop
the repair cost may be higher if you have already attempted aborted and
failed repair procedures.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Before you attempt to repair this yourself you may want to go to the website
for this newsgroup at
http://www.repairfaq.org/
There, with some searching, you will find a wealth of troubleshooting tips,
repair procedures, component testing methods and IMPORTANT safety
information that will help you to stay away from electrical shock hazards.
You have already checked the simple stuff, now you will need to verify that
the proper voltages are making it to the circuitry. In addition to what you
have already done you need to check for any open low ohm resistors, shorted
diodes and transistors, etc..... especially in the AF power output and AF
driver stages.
Spend some time at the repairfaq website to get yourself up to speed with
electronics troubleshooting and repair techniques.
Bear in mind that if you finally decide to take it to a service repair shop
the repair cost may be higher if you have already attempted aborted and
failed repair procedures.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Glynn <grh...@NOSPAMyahoo.com> wrote in message
news:9hm0h7$74e$1...@news.cc.ucf.edu...
craig osborn
Jun 30, 2001, 11:50:01 PM6/30/01
to
Check the back for amp input connector if it has that, the shorting plugs
are missing.
JEFF
Glynn wrote in message <9hm0h7$74e$1...@news.cc.ucf.edu>...
are missing.
JEFF
Glynn wrote in message <9hm0h7$74e$1...@news.cc.ucf.edu>...
Sofie
Jul 1, 2001, 2:00:57 AM7/1/01
to
Jeff/Craig::
Good point...... that one has fooled novice and tech alike ! !
Glynn:
If you do not have proper shorting plugs you can use a short RCA/RCA jumper
cable.
Also check to make sure that the tape monitor (1) & (2) buttons are off and
if there is an "adapter" button make sure it is off.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Good point...... that one has fooled novice and tech alike ! !
Glynn:
If you do not have proper shorting plugs you can use a short RCA/RCA jumper
cable.
Also check to make sure that the tape monitor (1) & (2) buttons are off and
if there is an "adapter" button make sure it is off.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
craig osborn <ee...@worldnet.att.net> wrote in message
news:J5x%6.230$Fy3....@bgtnsc05-news.ops.worldnet.att.net...
Glynn
Jul 2, 2001, 11:14:59 PM7/2/01
to
Thanks for the great site and info. It is now one of my bookmarks. I'll see
what I can come up with, hopefully without creating another problem. Also,
is there a way to measure current without opening the circuit? I think I
remember reading in one of the posts about an ammeter that will do this.
Thanks.
what I can come up with, hopefully without creating another problem. Also,
is there a way to measure current without opening the circuit? I think I
remember reading in one of the posts about an ammeter that will do this.
Thanks.
Glynn
Sofie <so...@olypen.com> wrote in message
news:9kw%6.113121$Uo3.2...@news6.giganews.com...
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