Sparkey
Guest
Tue Jan 24, 2012 3:38 pm
I have a strange problem with this Bose radio/cd unit.
It goes completely dead, but only intermittently.
In other words, one day it just died. (no function/no display) I did a
little checking, suspecting a defective power transformer. Pulled it
and checked good. I put it back in and it worked...thought pri clip
may have wiggled loose off of the board. After a week or so, it died
again. It worked the next day however.
After an hour of playing it would die again.
Now, it's working all the time.
I have checked solder connections on the board, tested regulators and
caps in the power supply.
I would like to get a print because I see this is going to be a
chaser, but they seem hard to find.
The unit is an AWRC1G
The PC board designation is: 260128-0001
5329 8/28/03 0325
Thanks
William Sommerwerck
Guest
Tue Jan 24, 2012 3:38 pm
There are many possible causes, but a bad solder joint is likely. Touching
up lots and lots of joints might not be a bad idea.
I would suggest taking voltage readings around the PS and recording them.
Then, when the unit stops working, check the voltages.
I realize that it's much easier to troubleshoot when you have the schematic.
But this is the sort of problem that could drive you crazy and waste huge
amounts of time. I would wait until it (appears to) fail altogether.
N_Cook
Guest
Tue Jan 24, 2012 4:22 pm
Sparkey <wwspage_at_aol.com> wrote in message
news:1ac5f5c0-df27-4b87-bd1a-80c1b3dd6431_at_v14g2000vbc.googlegroups.com...
Quote:
I have a strange problem with this Bose radio/cd unit.
It goes completely dead, but only intermittently.
In other words, one day it just died. (no function/no display) I did a
little checking, suspecting a defective power transformer. Pulled it
and checked good. I put it back in and it worked...thought pri clip
may have wiggled loose off of the board. After a week or so, it died
again. It worked the next day however.
After an hour of playing it would die again.
Now, it's working all the time.
I have checked solder connections on the board, tested regulators and
caps in the power supply.
I would like to get a print because I see this is going to be a
chaser, but they seem hard to find.
The unit is an AWRC1G
The PC board designation is: 260128-0001
5329 8/28/03 0325
Thanks
Check the so-called strain relief for the mains cable
Arfa Daily
Guest
Wed Jan 25, 2012 2:47 am
"Sparkey" <wwspage_at_aol.com> wrote in message
news:1ac5f5c0-df27-4b87-bd1a-80c1b3dd6431_at_v14g2000vbc.googlegroups.com...
Quote:
I have a strange problem with this Bose radio/cd unit.
It goes completely dead, but only intermittently.
In other words, one day it just died. (no function/no display) I did a
little checking, suspecting a defective power transformer. Pulled it
and checked good. I put it back in and it worked...thought pri clip
may have wiggled loose off of the board. After a week or so, it died
again. It worked the next day however.
After an hour of playing it would die again.
Now, it's working all the time.
I have checked solder connections on the board, tested regulators and
caps in the power supply.
I would like to get a print because I see this is going to be a
chaser, but they seem hard to find.
The unit is an AWRC1G
The PC board designation is: 260128-0001
5329 8/28/03 0325
Thanks
Mail me direct off-group at the address I used to post this. I should be
able to fix you up with schematics
Arfa
Sparkey
Guest
Thu Jan 26, 2012 2:02 pm
I have checked the strain relief, does not seem to affect the
operation.
It's still playing.
Yup, I have been recording power supply values anticipating shut-down.
thanks
