SAMSUNG Proprietary-Contents may change without notice
8-7
Trouble Shooting
8-2 Receiver Section
8-2-1 AMPS mode
YES
YES
YES
YES
NO
NO
NO
NO
Start AMPS mode.
Check
AMPS 12dB
SINAD
OK?
Check Duplexer
& LNA power
Check LNA
in/output
OK?
Check
MIXER
in/output
OK?
Check IF
Filter
in/output
OK?
RSSI OK?
Check 1st
local & mixer
power OK?
Check IF Filter
soldering
Check 2nd
local OK?
Check
VCO output.
Check 2nd Local
& IFR3300.
RF RX AMPS OK.
NO
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
(Gain:+15
(Gain:+15
(Gain:+15
(Gain:+15 dB
dB
dB
dB))))
(Gain(AMPS):+7d
(Gain(AMPS):+7d
(Gain(AMPS):+7d
(Gain(AMPS):+7d B)
B)
B)
B)
(Loss:6d
(Loss:6d
(Loss:6d
(Loss:6d B)
B)
B)
B)
(Local:0d
(Local:0d
(Local:0d
(Local:0d Bm
Bm
Bm
Bm))))
(VCO output:-6dB
(VCO output:-6dB
(VCO output:-6dB
(VCO output:-6dB m)
m)
m)
m)
NO
NO
NO
NO
