Line 6 Flextone help

[Jazz P Bass]

Mute function

Yeah. I've seen Marshalls, with the 7293, that the mute circuit also went south when the 7293 went.
I think they do a slow rise of 5 volts on the mute pin.
Can you identify the transistors in any way?
Any markings?
TO-92?

[gmichalak1]

Thanks. It's surface mount. About the size of a large flea! Markings on Q4, which burned up, are not legible. I might be able to see some ID on Q3, but I don't know that it is the same as Q4. I am going to call someone I know, at an amp repair shop, and see if they can get a schematic. I got the 3rd-degree, from Line 6 tech support.

Gary

[gmichalak1]

Q3 and Q4 are PMBT4401, NPN. Q3 is just an inverter for the signal to drive Q4, which drives the mute pin on the TDA 7293.

Gary

[Cobra_rt7]

Hey Gary,

Did it work for you after you replace Q3, Q4?

Thx

[Cobra_rt7]

Do yo have the schematic?

Thx
Steve

[jobna]

Line 6 Flextone help

Does anyone have a pic or can take a pic of the transformer and connections to the main board ( not the smaller power board w/plug)

I had a friend work resolder a new RJ45 connector on, he was good and labeled the wires but not the pins on the transformer.

5 wires vs 6 pins

These are the 5 wires I need to reconnect to the Transformer

H10 Blue wire
H11 White wire
H7 Red wire
H9 Red wire
H8 Grey wire

Thanks in advance!
/jw