"amdx" <
am...@knologynotthis.net> wrote in message
news:93e9e$509efe4c$18ec6dd7$79...@KNOLOGY.NET...
> On 11/10/2012 6:59 PM, Phil Allison wrote:
>>
>> "amdx"
>>>
>>> I bought a Bose� CineMate� GS Series II Digital Home Theater Speaker
>>> System today at a yard sale. I got it for half price when the lady
>>> admitted it didn't seem to work. I paid $2.50.
>>> I see it is $799 new and working, so I'd like to make this one work.
>>> I have searched for a schematic but I haven't had any luck.
>>
>> ** Have you looked at the PCB/s yet ?
>>
>> Made in China, all SMD, class D amplifiers and a SMPS to boot - I bet
>>
>>
>>> Anyone have access to a service manual or have any experience on common
>>> problems?
>>
>>
>> ** Bose have long been secretive about who gets to see their service
>> ata -
>> but if the unit is built the way I suspect, then there simply is no
>> service
>> data.
>>
>>
>>
>>
>> .... Phil
>>
>>
>
> I have disassembled and visually inspected for any poor connections or
> solder joints. I tested continuity of the fuses and power transformer.
> No sign of a problem.
> It looks like it has 3 what I suspect are class D amplifier chips, I
> can't read the numbers, I think they are mounted with the number down
> and heat sinking up, to fit the larger finned heat sink.
> I'm not sure yet about the power supply, it has an FQPF27P06 FET near
> the 5 large surface mount diodes and 1 large filter cap.
>
http://www.fairchildsemi.com/ds/FQ/FQPF27P06.pdf
> It has a thermistor mounted on the heatsink that measures 2.5 ohms,
> that seems low but, I'm a fish monger.
> Mikek
>
> PS. Yes, service data probably will be difficult to find, It says
> assembled in Mexico.
> If Bose will repair it for less than $100, it won't be a terrible deal.
> If I can fix it for less, it will be a better deal.
>
In the UK, Bose offer a fixed fee to repair any piece of Bose equipment,
including pickup and redelivery by courier. The equipment is then
guaranteed against further faults for I think
the initial guarantee on the new unit, but I am not sure, and that may not
be the case outside the UK.
It would not be worth paying that fee for a home hi-fi amp, but for some of
the more expensive gear it might well be, so I'd contact them if I were you
to find out what the deal is in your neck of the woods.
Especially, as has been stated here, you are highly unlikely to be able to
repair it yourself.
Gareth.