| Author |
Message |
BRL
Guest
|
 Posted:
Sat Nov 20, 2004 11:11 pm Post subject:
crown D150 power amp? |
|
|
Where is the fuse located in these amp?
Thanks
|
|
| Back to top |
|
 |
TimPerry
Guest
|
|
| Back to top |
|
|
BRL
Guest
|
| Posted:
Sun Nov 21, 2004 2:05 am Post subject:
Re: crown D150 power amp? |
|
|
">> Where is the fuse located in these amp?
| Quote: | Thanks
if its the series II the fuse is adjacent to the power cord as seen in
this
picture
Hey Tim thanks alot, I found it.
I have 2 of the older d150a, one with the ioc light one without the ioc |
lights. I hope it just a blown fuse. On the ioc one, they come on after the
unit has been on for a little while. Any thoughts?
Thanks again,
BR |
|
| Back to top |
|
|
TimPerry
Guest
|
| Posted:
Mon Nov 22, 2004 6:02 am Post subject:
Re: crown D150 power amp? |
|
|
"BRL" <blanier1@atmc.net> wrote in message
news:cnobk9$8s95$1@news3.infoave.net...
| Quote: |
">> Where is the fuse located in these amp?
Thanks
if its the series II the fuse is adjacent to the power cord as seen in
this
picture
Hey Tim thanks alot, I found it.
I have 2 of the older d150a, one with the ioc light one without the
ioc
lights. I hope it just a blown fuse. On the ioc one, they come on after
the
unit has been on for a little while. Any thoughts?
Thanks again,
BR
|
these are old enough to be classified as vintage gear.
prepal indicates that average D150A is selling for $157 USD
its up to you of course but it may be time to upgrade equipment.
thermal intermittent problems can be time consuming to trace down. you have
to wait for the problem to occur, spray components with freeze mist one at a
time looking for the one that is causing the problem and/or resolder all PC
board connections even sometimes finding connections that were never
soldered by the factory when assembled. this can easily run 2 or more hours
of labor.
the difficulty in localizing faults in the D and the DC series is that a DC
feedback loop in the design means that a fault almost anywhere in the amp
circuit causes all measured points (aside from the power supply) to be at
variance from normal values.
on older electronics corrosion buildup due to storage in overly humid
environments (unheated garage, shed) can be detrimental to long term health.
should you wish to have this serviced, locate a repair shop or an
experienced tech and expect to pay a nominal fee (say 1/2 hr to 1 hr) to
check it and provide an estimate for repair. a good service shop will
provide a warranty on labor of at least 30 days and may or may not warranty
parts.
the usual first suspects are the driver and/or final transistors but the
problem could be anywhere. |
|
| Back to top |
|
|
Ty Ford
Guest
|
| Posted:
Mon Nov 22, 2004 6:05 pm Post subject:
Re: crown D150 power amp? |
|
|
On Sun, 21 Nov 2004 23:39:58 -0500, TimPerry wrote
(in article <B8idnahOTOYD8DzcRVn-tg@adelphia.com>):
| Quote: |
"BRL" <blanier1@atmc.net> wrote in message
news:cnobk9$8s95$1@news3.infoave.net...
">> Where is the fuse located in these amp?
Thanks
if its the series II the fuse is adjacent to the power cord as seen in
this
picture
Hey Tim thanks alot, I found it.
I have 2 of the older d150a, one with the ioc light one without the
ioc
lights. I hope it just a blown fuse. On the ioc one, they come on after
the
unit has been on for a little while. Any thoughts?
Thanks again,
BR
these are old enough to be classified as vintage gear.
prepal indicates that average D150A is selling for $157 USD
its up to you of course but it may be time to upgrade equipment.
thermal intermittent problems can be time consuming to trace down. you have
to wait for the problem to occur, spray components with freeze mist one at a
time looking for the one that is causing the problem and/or resolder all PC
board connections even sometimes finding connections that were never
soldered by the factory when assembled. this can easily run 2 or more hours
of labor.
the difficulty in localizing faults in the D and the DC series is that a DC
feedback loop in the design means that a fault almost anywhere in the amp
circuit causes all measured points (aside from the power supply) to be at
variance from normal values.
on older electronics corrosion buildup due to storage in overly humid
environments (unheated garage, shed) can be detrimental to long term health.
should you wish to have this serviced, locate a repair shop or an
experienced tech and expect to pay a nominal fee (say 1/2 hr to 1 hr) to
check it and provide an estimate for repair. a good service shop will
provide a warranty on labor of at least 30 days and may or may not warranty
parts.
the usual first suspects are the driver and/or final transistors but the
problem could be anywhere.
|
I have a D-60 (circa 1975) that I sent back to Crown a few years back. They
re-capped it, tweeked a few other things for a really reasonable price and it
sounds great.
Regards,
Ty Ford
-- Ty Ford's equipment reviews, audio samples, rates and other audiocentric
stuff are at www.tyford.com |
|
| Back to top |
|
|
|
|
|
|
Profile
Log in to check your private messages
Log in