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Subject: Re: [PolySix] Re: Non-working attenuator

From: <backshall1@bellsouth.net>
Date: 2015-01-03

Like Bob said, the point between R41-D2 connects to IC5 pin 2 not pin 3. Pin 3 is Tape Enable (inverted). IC 5 pin 2 should be about 1.1V unless the zener D2 or resistor R41 are not connected properly or are the wrong parts inserted.
Don B
 
Sent: Friday, January 2, 2015 4:42 PM
Subject: Re: [PolySix] Re: Non-working attenuator
 
 

Hey Bob, I've got thee two measurements, and they are OK. But it seems like the point R41 - D2 doesn't reach directly IC5 (measurement show a resistance of ~5k between R41-D2 and IC5 pin 3)

The definition of the bottom layer isn't enough to see were the pin goes. I'm waiting on the picture of Jed.

Lucas