Mackie M1400 Power Amplifier Temperature light stay on

[mwenga]

Temperature light stay on even though the Heat sink is cold as ice.
I have a M1400 amplifier for some reason the temperature light stay on. I checked all my pre amp transistor and the output transistor all seem to measure fine. Also the temperature IC U1(LM35DZ) it's okay. I have changed the LM339 IC as well . Still no changes. Any suggestions. just posted the circuit diagram.

[mwenga]

[g1]

Those schematics are too blurry. See attached pdf. Temp sensing circuits are on pg.3

[nevetslab]

It seems this same thread is also posted on Other Amps. I had just added the same schematics over there along with some questions., then found G1's post, and not mine, not yet realizing the same thread is running elsewhere. Sigh..........

[g1]

I saw that too.
The other one has more responses so let's abandon this one.

Please direct any further responses here:
http://music-electronics-forum.com/t46223/

[mwenga]

My apologies gentleman, the error was mine. as this is my first post on this site. i will be responding on the other thread