Cobra 29 LX Series User Manual

Technical Service Bulletin 10076 Page 5 of 5
The backlight voltage should read between 5-18VDC depending on the DIM setting. If the voltages
are not present then replace the backlight power supply, Cobra p/n 306-004. The backlight power
supply is a metal can mounted to the side of the chassis:
If the voltage measure correctly but the backlight is still dark, then replace the backlight module,
Cobra p/n 306-003.

Cobra 29 LX Series Specifications

General

Frequency Range	26.965 MHz to 27.405 MHz
Channels	40
RF Output Power	4 Watts
Modulation	AM
Antenna Impedance	50 Ohms
Power Supply	13.8 VDC
Display	LCD
RF Gain	Adjustable
Instant Channel 9/19	Yes
SWR Calibration	Yes
PA Function	Yes
Type	CB Radio
Power Output	4 Watts AM
Weather Channels	7 NOAA Weather Channels