Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default Need Schematic Bose Acoustic Wave AWRC1G

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.


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Default Need Schematic Bose Acoustic Wave AWRC1G


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
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Default Need Schematic Bose Acoustic Wave AWRC1G

Sparkey wrote in message
...

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


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Default Need Schematic Bose Acoustic Wave AWRC1G



"Sparkey" wrote in message
...

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

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Default Need Schematic Bose Acoustic Wave AWRC1G

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
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