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craig l232 agc overload

Posted: 05 Jul 2018, 00:59
by dt307
this is starting to wear me out

normal to weak sigs the radio rx great

get a strong signal and its worse than anything i have heard

pc-582 mainboard schematic included

agc voltage @ d4 cathode 2.47 rising in overload state to 4v+

d16,d17 getting voltage same as above

r42 tested 4.7k good

d16-d19 removed and checked 1n6263 fitted in replace no change so std ones put back.

changed r42 to 15k and its got 30% better but if i go much higher tx goes funny.

any one?

thanks


http://www.cbtricks.com/radios/craig/l2 ... sm_sch.pdf

Re: craig l232 agc overload

Posted: 06 Jul 2018, 21:36
by dt307
all done working like a dream now thanks for looking ....just 1 ceramic cap causing the rx to go low and the agc to fail to work

Re: craig l232 agc overload

Posted: 06 Jul 2018, 21:57
by Buick Mackane
Good stuff chris,

At one point the repair forum was one of the busiest sections on here, Few years ago you were guaranteed to get help with repairs,

Ghost town now, Sad to see,

Re: craig l232 agc overload

Posted: 07 Jul 2018, 01:13
by dt307
Buick Mackane wrote:
06 Jul 2018, 21:57
Good stuff chris,

At one point the repair forum was one of the busiest sections on here, Few years ago you were guaranteed to get help with repairs,

Ghost town now, Sad to see,
i my self used to be on here most days as soon as i turn the pc on first place was tm1
i was trying to help people out but there are a few with attude that i can do without
fb i do most of my helping these days but i will try to keep an eye on here.


no worries about the post its to be expected i was asking a handfull of people that would have known what i was on about ....