Table of Contents
Advertisement
Flow Chart of Troubleshooting and Circuit Diagrams
10-2-3. DCS Receiver
Normal
Condition catch
the channel?
F901 check
pin13 = -65dBm
F901 check
pin 3,4 = -65dBm
U903 check
pin 4,5 = -65dBm
Yes
U903 check
pin 35 = 26M ?
Vp-p : 860mV
Yes
U903 check
pin 1,8,31,36,41
clean 2.8V
Yes
U903 check
pin 25,26,27,28
Vp-p : 100mV
Yes
Check UCD701
This Document can not be used without Samsung's authorization
Yes
Yes
Yes
UCD701 pin A13,C735
check or resolder
TCX901 check
No
pin3 = 26M ?
Vp-p : 1V
C907, R902
check or resolder
No
No
SAMSUNG Proprietary-Contents may change without notice
RFinput : 698CH AMP :
No
Check soldered status
of C916,L901
No
RFS901 resolder or
change
No
F901 resolder or
change
No
C922, L905, L906
resolder or change
No
Yes
TCX901 change or resolder
UCD701 pin B10, C736
Check or resolder
U903 check or resolder
10-25
Continuous RX on
-50dBm
No
TCX901 check
pin 4 = clean 3V?
Yes
Advertisement
Table of Contents
