![background image](http://html.mh-extra.com/html/samsung/sgh-d100/sgh-d100_service-manual_1190441014.webp)
SAMSUNG Proprietary-Contents may change without notice
SGH-D100/D100A Flow Chart of Troubleshooting and Circuit Diagrams
2-
11
This Document can not be used without Samsung's authorization
F1001 CHECK
pin15 ≥ -65dBm ?
2. DCS RX
CONTINUOUS RX ON
RF INPUT : 698CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
CHECK
ANT1001, R1015, L1009
U1002
pin 9: 2.8V ?
F1001 CHECK
pin3, 4 ≥ -65dBm ?
U1002 CHECK
pin18, 19 ≥ -65dBm ?
C1003, F1003
Solder again or change
F1001
Solder again or change
C1008,C1009,L1004
Solder again or change
U102 pin39, C112
Solder again or change
U1002 CHECK
pin 8 : 13MHz ?
Vp-p : 950mV?
OSC801
Solder again or change
U1002
Solder again or change
U701
Solder again or change
U1002
pin1,2,3,28 Vp-p
: 120mV ?
NO
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES