Why did you replace the output? Do you have audio at its input? Have you
traced the audio at all? Where do you have it and where not? Does it have
audio on the aux input?

Which version of the CTC177 is it? I have some good EEPROM data stored if
you have an interface to read and write the data if you want to try that. I
agree, it does not sound like a bad EEPROM if pin 29 is not high, however.

Leonard

"moonlite" wrote in message
oups.com...
For all of you people familiar with this chassis: Set came in dead. I
knew immediately it was the tuner grounds problem so I did that. Now
set comes on just fine but without any audio. I can order a new eeprom,
but why have my customer wait if there are indications that it may not
be the eeprom ? For example, disconnecting emmiter of Q903 does not
help. Pin 29 of the micro is not high, so the mute circuit is not
activated. I replaced the audio output IC. All caps check ok. I tried
to see if the speakers are in the OFF position by disconnecting pin 8
of eeprom after set comes on, but i could not see this option in all
the menus ( I am familiar with this procedure). Does every CTC177
chassis have this option ? If so, how do I get to it ? I am afraid I
may have to wait for this $2 part after all. Thanks for your ideas.

moonlite