after being sure that all my soldering is ok and all the components are is the right place i still don’t have sound out of mine K4004b.
i even measured all the components and the seem fine…
Strange thing is that everything seem ok till i connect the speakers (which are fine). Even when i try to make a signal there is only silence…
My K4006 works fine, other settings are stereo, 300mv.
i know they are there on page 6, but i have! placed 2 jumpers (JS) and left the 2 jumpers (JH/JM) open for the 330MV setting like it says on page page six.
To be sure i have places the jumpers JH/JM in the setting for 1MV and there stil no sound
Just under R13 you will see a hole for a lead with a line go to just over R19
A jumper goes there
Just above C5 you will see the same thing.
And next to R10
And between C11 and C7