mute function on NJW1150?

superxpro12 · 22nd December 2008, 06:42 PM

I've been taking apart my z-5300 speakers for about a week now, it's been a learning experience. I am trying to power them up without the remote. Anyway, I looked up one of the chips on the board and found it to be NJW1150, a 6-channel electronic volume circuit. Unfortunately, about half way in, page 10/18, it says "On power up, the master volume mute is activated". Could someone tell me how to switch the mute off? Thanks.

ceteras · 21st February 2011, 08:37 PM

For all those who might want to know the answer: you switch the mute off by setting the 08H register value to "00H", by I2c.
This is described in the datasheet a couple of pages further on.

22nd December 2008, 06:42 PM	#1
superxpro12 diyAudio Member Join Date: Dec 2008	mute function on NJW1150? I've been taking apart my z-5300 speakers for about a week now, it's been a learning experience. I am trying to power them up without the remote. Anyway, I looked up one of the chips on the board and found it to be NJW1150, a 6-channel electronic volume circuit. Unfortunately, about half way in, page 10/18, it says "On power up, the master volume mute is activated". Could someone tell me how to switch the mute off? Thanks.

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21st February 2011, 08:37 PM	#2
ceteras diyAudio Member Join Date: May 2010	For all those who might want to know the answer: you switch the mute off by setting the 08H register value to "00H", by I2c. This is described in the datasheet a couple of pages further on.

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