alitonto wrote:
re post 18/7/2005
Thank you all.
I would like to do this test but I need to check about correct
procedu would it be proper to solder a 3.9 zener diode with the -
end to the tuner's AGC pin and the + end to the tuner's ground.
I understand the idea is to clamp the voltage to 3.9; is this right?
I will wait for confirmation.

That would be the proper way. To make sure, check that the AGC line
actually contains a resistor so as not to short anything with the zener
diode. Then connect the zener directly between the tuner pin
(cathode) and the ground (anode).

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Met vriendelijke groet,

Maarten Bakker.