Recently got a Touch with the very same issue. Now I'm looking for the
spare part as well, however, it's hard as usual to find what part this
actually is. The print reads something like 4B40R according to the
images from my very shitty USB microscope:

23543235442354523546

Google does not reveal anything that makes sens when I look for 4B40R.
However, digging through the results of "4B40" brought me to this page:

http://bbs.ic37.com/TOREX/XC6204B40_datasheet_336701/

According to the PDF, the SMT marking code 4B40R would mean:

4 = indicator of product line XC6204
B = Voltage 3.1~6.0V at 100mV steps
4 = 3.5V output
0R = production lot number / date

The product name for this combination would be (I believe) one of these:

XC6204B35*1*M*R *
XC6204B35*1*M*L *
XC6204B35*2*M*R *
XC6204B35*2*M*L
*
where the red digit is for the accuracy (1 means 1%, 2 means 2%
accuracy). It might not be this critical in the Touch so both could
work.
The red letter at the end is for the pick-and-place feeder direction and
is meaningless for hand-soldering

It seems close enough. Let's see where we can purchase this part.
DigiKey and Mouser both state no stock and minimum order quantity of
3000. argh. Alibaba might be a change though. I found one seller
(Shenzhen Wanxinwei Technology Co.) who offers XC6204B352DP which
unfortunately is the wrong pin configuration. It's still the closest I
found. I filed a request for the exact model numbers stated above. Let's
see how that turns out.

Cheers
Joe


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1x Squezeebox Classic SB2
5x Squeezebox Classic SB3 (one waiting for repair)
7x Squeezebox Boom (two waiting for repair)
1x Transporter
1.5x Controller (one waiting for repair)
1.5x Touch (one waiting for repair)
------------------------------------------------------------------------
JoeMuc2009's Profile: http://forums.slimdevices.com/member.php?userid=23131
View this thread: http://forums.slimdevices.com/showthread.php?t=107453

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