Audiopipe AP10001D

[mike49504]

Outputs check good in this amp..

When i power it up and place black meter probe on output - terminal and
red probe on + output terminal i get - 2.62 volts ..

They guy said if he hooks up a sub to it it makes the sub flutter ..


Any ideas??

[Perry Babin]

Does it make a speaker flutter on the bench?

If so, does it act differently with the RCAs connected/disconnected?

[mike49504]

it pushes the cone of the speaker outward with and without rcas plugged in

I cant get it to flutter but i can tell theres DC present by hooking a test speaker up.

[Perry Babin]

Is there DC on the RCA shields?

Place the black meter probe on the amplifier's ground terminal.

[mike49504]

No voltage at all on the rca shields

[Perry Babin]

Is there DC on the output pins of any of the op-amps?

[mike49504]

U3 TLO74C Pin 16 has 2.37 volts on it ...


All other op-amps test fine

[Perry Babin]

What's the DC voltage on pins 12 and 13?

P.S. only 14 pins.

[mike49504]

Sorry meant pin 14..


Pin 12:0
Pin 13:0

[Perry Babin]

More resolution is needed. Post the actual meter reading (3 decimal places).