Hardware Hacking

EPT690010Z PCB
Channel Expansion

Remove the top cover.

Just above the PLL you will find a jumper block.

The pins go like this:

123
456

Put the jumper on pins 2-3

Tweaks

Audio Limiter - TR53
AM Power - VR14

Channel Expansion

1.Remove the top of the case (The Part that does not have the speaker on it) and locate the wire (is usually green or red about 2 inches long) toward the front of the radio.

2. Unsolder it from the ground and the two pins. After you have removed this wire make sure there is no solder connecting the two pins together.

3. Find the connector toward the front right of the radio labeled 10K and reconnect this plug to the connector on theš circuit board. (NOTE: This plug may already be attached when you get your radio.)

4. All thats left to do is put the case back on and your done.

Tweaks

Lo Power - VR16
Hi Power - VR13
SSB Power - VR12
Modulation - VR14
Audio Limiter - TR53

Channel Expansion

1) Open up your radio.
2) Find the small circuit board on the left of the radio.
3) Cut the green wire and tape it off.
4) There is an unplugged connector by this board….plug it in.
5) That’s it.!You now have 8 bands of 40 channels.25.165-28.755.