![background image](http://html.mh-extra.com/html/samsung/sth-n375/sth-n375_service-manual_1189521013.webp)
SAMSUNG Proprietary-Contents may change without notice
1-11
STH-N375 Trouble Shooting
3
Y
Need to check
V_DRV_CELL=3.0V, U112 or
Replace U305
U305 Gain
around 27dB
N
Y
Replace F305
F305 Insertion loss
around 3dB
N
Y
Need to check
V_PA_BAIS_CELL(U302_5,6,7)=3.0V
VBATT(U302_14,15,16)=3.2~4V
or Replace U302
U302 Gain
around 30dB
N
Y
Need to check
F304 & neighbor parts
F304_1 around same power
with U302 output
N
Y
Need to check
F304 & neighbor parts
F303 insertion loss
under 3dB
N
DONE