Delay problems

[ole jason]

Someone gave me an old 'in line effects' analog delay. It has one M3205 chip and a ton of components. It's pretty beat up and has no battery terminal at this point. I went ahead and plugged it up with an adapter just to see if it would come on.

The weird thing is that it comes on and passes signal bypassed and engaged but when it is on I don't get any effect. It isn't true bypass so if something on the pcb is not connected or shorting  I shouldn't get anything when the effect is on, correct? I guess I wouldn't get anything when it is off either if the signal always passes through the entire circuit.

I get a dry signal whether the effect is on or off

I've never worked on a delay before so I'm just wondering if I'm missing something really obvious. I'll post detailed pictures of the board if that would help

Thanks

[theehman]

Generally the early stages of a delay pedal will split the signal and send one line to the output stage or blend control and the other to the delay stage so if the pre-delay IC stages are working fine you will still get a signal on the output.  If the delay section is inoperable and can't pass any signal you'll have the clean sound only.

If you post some pics I'm sure someone here will be able to identify it.  Please post pics of both sides of the board.