replacing pcm1716 with wm8740 ??

[hjelm]

(although 2 way selector in me pot in a box so maybe same thing)

Yes if you switch that one to another source it could make a noise, could be ok but sometimes you forget to lower the volume and get a suprise.

It is not the voltage that decides if a 1uf cap is enough, not too unusual that they are rated some hundred volts so that way it is fine.

If the amp has a too low input impedance though then it might be a problem with bas reproduction but since the manufacturer has placed it there it should be sufficient.

[Stones]

Originally posted by Smiffy
Haven't got the bits yet,specs look better than 1716 but i think i may be pushing my luck a bit on the soldering skills.should be able to put them on,its getting the old 1716s off thats worrying me.seems a bit more complicated than swapping the 5532s for AD8620s was.
Smiffy

Smiffy,

Send me a pm and I will try to assist you.

[Stones]

Smiffy,

I have replied to your pm and I would be happy to provide some phone support (to lazy to type), or better still if you can get here (south of Doncaster) I would be happy to spare you a beer and a go with various professional smt rework toys.

You may find the following finds useful.

http://www.diyaudio.com/wiki/index.p...ntDeviceRework

http://www.usbmicro.com/odn/documents/46.html

Or if you are interested in investment (it will be necessary in time) search the common online auctions for example “rework”.