Samsung SGH-E600, Руководство по обслуживанию, Страница: 17 / 31

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SGH-E600/E608 Flow Chart of Troubleshooting and Circuit Diagrams
2- 14
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5. DCS Transmitter
F1000 pin 15
about 2~3 dBm?
F1000
pin 11 : 2.8 V?
U1000 pin 17
3~4dBm?
U700,U702
check & change
F1000
check & change
CN1000,
R1007,C1001
check & change
U1000
pin 4 : 3.7 V?
BATTERY, U100
check & change
U1000
pin 5 : 3 V?
U1000
pin2,3:3V?
U1000
pin 6 : 1.2 V?
U1000 pin 1
about : -5dBm?
U1000
change & resolder
U700
check & change
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
CONTINUS TX ON CONDITION
MS TX level 12
CH : 698
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
U901
pin9,32
2.8V?
NO
U100 pin39,C112
change or
resolder
NO
U700
change
U901
pin4,5,6,7
1.7V
YES
NO
U901
pin 8 13MHz
Vp-p :950mV
NO
OSC800
pin 3 :13MHz?
Vp-p : 950mV
NO
OSC800
change or
resolder
YES
OSC800
pin 4 : 3V ?
NO U100 pin39,c112
change or
resolder
YES
U901
change or
resolder
U901change or resolder
YES
YES
U1000
check & change