electonetalk : Electone Talk: For YAMAHA Electone users

electonetalk · Electone Talk: For YAMAHA Electone users

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Founded: Nov 30, 2000
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Activity within 7 days:

13 New Messages - New Questions

Description

ELECTONE STAGEA

EL DISK DATABASE (eldata.org)

A community for exchange of electone books, and also the disk data.

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Re: Yamaha D85 working but no amplification Sounds good. Why are all four channels silent if only one amp has failed? The 42V would probably blow fuses if any are present to protect the speakers. Is Posted - Tue Sep 7, 2010 2:57 pm	Bill Crunkhorn ctsbillc Offline Send Email
Re: Yamaha D85 working but no amplification IC301 is dead. (IC301(STK-085)Centre Channel= -42.7VDC) Ex.STK085 input pinNo,1 PinNo,6 -PowerVoltage PinNo,8+PowerVoltage 1:You should Remove IC301 . 2:Check! Posted - Tue Sep 7, 2010 11:58 am	tnmshd Offline
Re: Yamaha D85 working but no amplification Thank you again tnmshd and Bill, I have checked the pin 7 voltages on all 4 power amp IC's. Here is what they read: IC301(STK-085)Centre Channel= -42.7VDC Posted - Tue Sep 7, 2010 8:55 am	Skippy dieter.caspari Offline Send Email
Re: Yamaha D85 working but no amplification You're doing pretty good actually. If all four amps have gone, something bad must have happened to fry them, like a power supply over-voltage fault. Is the Posted - Tue Sep 7, 2010 1:48 am	Bill Crunkhorn ctsbillc Offline Send Email
Re: Yamaha D85 working but no amplification Check following item again .. PA1 and PA2 unit .Ther are 4 Power IC (STK080 ) If you get DC voltage on pinNo.7(output) ---------- STK080 is dead. and muting Posted - Tue Sep 7, 2010 1:08 am	tnmshd Offline
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