KERN KFB-TM - 10 Trouble Shooting; No Power

- 39 - KFB-TM/KFN-TM-SH-e-1410
11 10. TROUBLE SHOOTING
11.1 No Power
Not good
Ok
Not good
Ok
Not good
Ok
Not good
Ok
Not good
Ok
START
Check power
switch connector
Check Battery
Voltage >6V
Check DU 4
pin 1 Out put 5V
CHK M/B DU3
pin 8 high level
when power on
and return to low
level later.
Replace power switch or
connecter
Recharge the battery or
Replace the battery
Check DU4 and around circuit
Check M/B DU3 and around
circuit
Check ST
(11.0592Mhz)
Check ST and around circuit
Check M/B DU1
and around circuit