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Author Topic: {Req} Looking for a English DataSheet for Yamaha YMW728B-F IC  (Read 2448 times)
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PaulC
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information is free and should be shared for free


« on: April 25, 2013, 03:07:40 15:07 »

Repairing a Yamaha Keyboard for my grandson.
Tracing Analogue out from Main Amplifier to the YMW728B-F IC on scope is not giving any outgoing signals.
hence Looking for a English DataSheet for Yamaha YMW728B-F IC..
Tried usual searches & Google to no avail
many thanks
« Last Edit: April 25, 2013, 03:45:52 15:45 by PaulC » Logged

find it , read it , share it .
GunMage
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« Reply #1 on: April 25, 2013, 04:15:25 16:15 »

Repairing a Yamaha Keyboard for my grandson.
Tracing Analogue out from Main Amplifier to the YMW728B-F IC on scope is not giving any outgoing signals.
hence Looking for a English DataSheet for Yamaha YMW728B-F IC..
Tried usual searches & Google to no avail
many thanks
This is as close as I can get you....
YMW728-F (XU355A00) GEW12 (AWM Tone Generator)

which was found here:
http://dc492.4shared.com/doc/1HCkRN6J/preview.html#26

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bigtoy
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« Reply #2 on: April 26, 2013, 06:51:12 06:51 »

There's also this:

http://www.dtech.lv/files_ym/ymw728f_GEW12_generic_schematic_PSR160_PSR170_PSR270.png

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