Not a wire (although that might work), a resistor. You can solder across the resistor in the circuit.
With R315 still installed and a wire soldered across the terminals and a load connected,
U301
Pin 1: 0.001
U301
Pin 1: 0.001
No DC maybe less than 1/2 a volt no audio. The amp isn't drawing any current. Like its not fully power up. Draws about 40 amps on initial power up then stays at about 1.5-2.0 amps. Usually they are around 7-10 amps when idling.
According to the schematic that would be pins 2 and 5.
I do not have a square wave on pins 2 and 5, but I have a square wave on pin 3.
I do not have a square wave on pins 2 and 5, but I have a square wave on pin 3.
I didn't measure the heat, I already removed it. Heating up my iron now for replacement. It's not a big deal to change, at least I can rule it out after replacement.
Changing the IC got rid of the supply voltage on all pins except the ones that are suppose to have the 6 volts according to the schematic. It also returned a square wave to pins 2 and 5, also 3 still has a square wave.
Still no audio and very little current draw.
Still no audio and very little current draw.
All the rail switchers have 141vdc on the drains, and the audio FET's have no voltage on gate, drain, or source. I'm not sure if this is useful, thought I would mention it.
Has the look of the waveform on the 5110 drivers changed?
Still no signal on their output pins?
Do you have a square wave on the drains of Q11 and Q12?
Still no signal on their output pins?
Do you have a square wave on the drains of Q11 and Q12?