Re: Amplifier Problem - Revised Schematic

On 2008-04-22, EADGBE <hwbosshoss@[EMAIL PROTECTED]
> wrote:
>
> I have just discovered that the voltage measured directly at the
> emitter leg of Q208 is a NEGATIVE voltage that fluctuates anywhere
> from -300mV to -16mV.

By subtraction from the 7.3 V you said was present at the junction of the
two 3.3 ohm resistors there's nominally 7.3 to 7.6 V across the lower one.

So it looks like: 

- that lower 3.3 ohm resistor is open circuit; or

- it's dissipating about 16 watts because of another fault and presumably
  getting rather hot which may lead to it going o/c soon (depending
  on its power rating which I would guess doesn't sup****t a 16 watt
  dissipation); or

- it isn't actually connected to the emitter of Q208 so check the 
  soldering.

-- 
John Phillips