Cobra 29 st/wx Squelch problem
Posted: Sunday 11th May 2008, 3:43
Got a Cobra Soundtracker / Weather ... the weather board has been removed. The squelch does not work at all even with adjusting VR3. It seems to be muffling audio audio all the time, (slightly) , when middle tag and high tag (not ground tag) of the switch are together, audio sounds good. the high tag (green wire) is soldered to the foil side of pin 10 of a TC4066BP chip near the ribbon to the channel selector. I am wondering if this wire came loose and someone attached it to the wrong place. I don't have the schematics for this model, (KEPC-258-C board) Does anyone know the correct locations for the squelch wiring to the board? Thanks in advance.
Otherwise, all functions in RX and TX are fine.....
It had a poorly done blue channel led done, hence the posible loose wires put back in the wrong place....I am hoping these wires just need to be placed back where they belong if they are wrong..... Thanks!
Squlech wiring:
Outside tag: Black wire (ground also attached to volume)
Middle Tag: White, connected to W22 by a resistor)
Outside Tag: Green, attached to pin 10 of chip listed above.
Otherwise, all functions in RX and TX are fine.....
It had a poorly done blue channel led done, hence the posible loose wires put back in the wrong place....I am hoping these wires just need to be placed back where they belong if they are wrong..... Thanks!
Squlech wiring:
Outside tag: Black wire (ground also attached to volume)
Middle Tag: White, connected to W22 by a resistor)
Outside Tag: Green, attached to pin 10 of chip listed above.