Enabling all Bands

The CRT SS 7900v Turbo can operate on $10m$ , $11m$ and $12m$ . In order to enable all the bands:

turn the radio off using the volume button,
hold down the menu and emergency buttons and then power on the radio with the buttons held down using the volume button.
the radio should now display 1 Band,
turn the frequency selector to switch the display to 2 Band,
turn the radio off using the volume button,
turn the radio on again and all bands should now be available.

Switching to 2 Band means that the $10m$ , $11m$ and $12m$ bands are available such that the radio will be able to use the frequency range $25.615MHz$ to $30.105MHz$ which includes the citizen band.

Service Menu & Settings

The service menu allows changing various settings and the menu can also be used to attain the maximal power for this radio (for example, changing the output power from $5W$ , which is the usual legal norm, to up to $40W$ ). In order to access the service menu:

turn the radio off from the volume button,
hold down the two buttons next to each other, Menu and Mode while turning the radio on,
if successful, the LCD test should be observed with all lines turned on,
press in quick succession, the buttons RB, NB, SCAN, MEM and EMG,
the LCD test should stop and a menu should now be available

Changing settings in the menu can be done by selecting the setting from the menu using the frequency button and then holding down PTT on the microphone whilst rotating the frequency button.