23 channel PLL02A mods Simple mod for lower channels The radio shown in both mods on this page is different from 40 channel radios with PLL02A chip, these mods should only be attempted on the 23 channel radios with the PC board# PTBMO39A0X The radio pictured is a Midland 13-882C

This mod only requires one switch, some thin wire, some good electrical solder, a 25 watt iron, and a sharp pocket-knife for cutting through the foil traces. IN the picture, the thick red lines are the 2 foil traces that must be cut through (this takes a while, be patient and make sure you've cut completly through) This is done to isolate pin 10 of the pll02a chip. In 23 channel radios, this pin would normally have 5 volts on it all the time. Cut through the

Sida 1 av 323 channel PLL02A mods

2004-04-01http://www.geocities.com/y40002000/plowboy23.html

foil on the red lines, and then check your cuts with a voltmeter, pin 10 should have 0 volts. Next solder one wire from point "A" and solder another wire to point "B" Hook wires "A" and "B" up to a switch. Turning the switch in the off position will give new channels (26.645-26.935) turning the switch in the on position gives normal 23 channels. *******************************************************

23 channel PLL02A mod for Lower AND upper channels This modification is much more difficult than the first mod, it will require cutting 6 different foil traces and wiring 2 different switches, and a jumper wire not switched.

Sida 2 av 323 channel PLL02A mods

2004-04-01http://www.geocities.com/y40002000/plowboy23.html

The road map for this mod: Both switches up= normal 23 channels Both switches down= 26.645-26.935 switch 1 down, switch 2 up= 27.285-27.575 switch 1 up, switch 2 down= 27.605-27.895

Sida 3 av 323 channel PLL02A mods

2004-04-01http://www.geocities.com/y40002000/plowboy23.html