Luxman L-100 mute circuit

[pocok]

Hello,
I'm repairing a L-100 amp. Recapped power supply, mute circuit part, output stages. All working and adjusted, except mute won't turn off. It comes on and when I touch it again there is only 0.3 Vdc on the base of Q310. All electrolytic caps are new. All semiconductors are measured. Q309 and 310 were replaced, no change.
Any ideas on how is this supposed to work?
Thanks,

 

[rayma]

Mess of a circuit. If the muting worked before the recap, then it might require low leakage electrolytic capacitors.
Also try cleaning the pcb of flux, etc. There are some real high value resistors on that board.