robyn am-500d channel mod

Discussions on CB Radio Modifications
Post Reply
scott3696
Dead Key
Dead Key
Posts: 20
Joined: Sunday 30th Mar 2008, 9:37
Location: carmi,il
Contact:

robyn am-500d channel mod

Post by scott3696 » Thursday 25th Nov 2010, 10:29

got this radio from a friend with a channel mod in it already but it is stuck on frequeny no matter what position switch is in. pc board # is198-ab and has the 858 pll chip. if i take out the mod frequency switches fine. it has a SPDT switch. the middle leg is soldered to pin 19 and trace is cut to channel select with a 3.3 kohm resistor between the two. one outer leg is soldered to ground and the other is solder to trace on pin 21 which is also cut between channel select. does this sound right or is something wrong here. thanks

Post Reply

Return to “CB Radio Modifications”