I don't think your problem is with the ALC board. You need to find out where the voltage that is causing the meter to deflect downward is coming from. The meter is driven by the wattmeter sensor in transmit and the ACG system of the 2nd IF/Audio board on RX. There is something crossed up on the 2nd IF/Audio board or the associated wiring.
73
-Jim
NU0C
On Tue, 16 Apr 2024 12:48:29 -0700
"Bill NZ0T via groups.io" <nz0tham@...> wrote:
I've been busy with yard projects and a new deck railing but got back to the TR7 today.? I replaced the AA119 diodes CR2001 and CR2002 with new 1N60P which made no difference.? The? meter still deflects below zero and the two adjustments make no difference. The old diodes tested OK in circuit but it seemed worth a try.? So I guess I'll turn my attention back to the ALC board now.
73, Bill NZ0T
Jim Shorney