SGH_i900_service_manual-spaces_ru
.pdf
Flow Chart of Troubleshooting
10-14. PCS Receiver
RX ON
Sector PWR=50dBm
PAM100 Pin 8
>= -60dBm
Yes
PAM100 Pin 7
>= -70dBm
Yes
U100 Pin 44, 45
>= -75dBm
Yes
Check U100 & UCP200
No
No
No
Resolder RFS100, C103, R100
,L100, L101, C111
Check PAM100 |
Yes |
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Truth Table |
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Pin 1 : HIGH |
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Resolder or change PAM100 |
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Pin |
27 |
: LOW |
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Pin |
28 |
: LOW |
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Resolder or change
F103, L109, L111, L112
10-39
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
V_DC
C113 C114
C109
R102
R103 R104
C137 C138
R106
R108 R109
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C112 |
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8 |
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TN |
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VBATT |
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RX4 |
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A |
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RX3 |
5 |
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10 |
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WCDMA1 |
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RX2 |
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7 |
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DCS|PCS_IN |
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RX1 |
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C131 |
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GSM_IN |
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PAM100 |
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MODE |
2 |
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3 |
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BS2 |
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RSVD |
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28 |
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_TXEN |
1 |
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BS1 |
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29 GND |
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DNG |
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DNG |
VAPC |
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DNG |
DNG |
DNG |
DNG |
DNG |
DNG |
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DNG |
DNG |
91 |
DNG DNG |
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9 |
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R107
C156
C150
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ANT |
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1 |
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ANT100 |
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ANT101 |
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RFS100 |
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G |
C |
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1 |
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C103 |
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R100 |
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L101 |
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L100 |
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C110 |
C111 |
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F100 |
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L102 |
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OUT |
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1 |
IN |
OUT |
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C121 |
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C122 |
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G |
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C118 |
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L103 |
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C119 |
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2 |
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C120 |
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F101 |
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L104 |
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IN |
OUT |
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R105 |
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G |
GOUT |
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C135 |
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C136 |
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L105 |
25
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F102 |
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L106 |
1 |
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OUT |
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IN G |
GOUT |
4 |
C145 |
L108 |
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2 |
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L107 |
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F103 |
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L109 |
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OUT |
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1 |
IN |
OUT |
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C155 |
L112 |
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G |
G |
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2 |
5 |
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L111 |
10-40
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
10-15. PCS Transmitter
TX ON (PCL 5 level)
PAM100 Pin 8 |
Yes |
|
Resolder RFS100, C103, R100 |
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>= 0dBm |
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,L100, L101, C111 |
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No |
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Yes |
Check PAM100 |
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PAM100 Pin 21 |
Truth Table |
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>= 0dBm |
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Pin 1 : LOW |
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Pin 27 |
: HIGH |
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Pin 28 |
: HIGH |
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Resolder or change PAM100 |
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No |
YES |
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PAM100 Pin 16 |
Yes |
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Resolder or change R102, R103 |
>= 0dBm |
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,R104 ,R105 |
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NO
Check U100 & UCP200
END
10-41
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
V_DC
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C113 |
C114 |
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C109 |
RFOUT_DCS_PCS |
R102 |
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TRX_WCDMA2100 |
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R103 |
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R104 |
GSM_ANT_SEL1_N |
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GSM_ANT_SEL0_N |
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C137 |
C138 |
RFOUT_GCELL_EGSM |
R106 |
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R108 |
R109 |
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PAM_RAMP+ |
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C112 |
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8 |
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4 |
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TN |
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VBATT |
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RX4 |
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A |
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RX3 |
5 |
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10 |
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6 |
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WCDMA1 |
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RX2 |
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7 |
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DCS|PCS_IN |
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RX1 |
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C131 |
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GSM_IN |
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PAM100 |
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MODE |
2 |
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27 |
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3 |
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BS2 |
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RSVD |
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28 |
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_TXEN |
1 |
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BS1 |
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25 |
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29 GND |
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DNG |
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DNG |
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VAPC |
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DNG |
DNG |
DNG |
DNG |
DNG |
DNG |
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DNG |
DNG |
91 |
DNG |
DNG DNG |
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9 |
11 |
21 |
31 |
41 |
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51 |
61 |
71 |
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81 |
02 |
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R107
C156
C150
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ANT |
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1 |
1 |
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ANT100 |
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ANT101 |
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RFS100 |
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G |
C |
A |
G |
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4 |
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2 |
1 |
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C103 |
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R100 |
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L101 |
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L100 |
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C110 |
C111 |
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F100 |
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L102 |
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OUT |
3 |
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GSM850_RXM |
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1 |
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4 |
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IN |
OUT |
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C121 |
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C122 |
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G |
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C118 |
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L103 |
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C119 |
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2 |
5 |
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GSM850_RXP |
C120 |
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F101 |
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L104 |
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OUT |
3 |
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GSM_RXM |
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1 |
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IN |
4 |
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C135 |
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C136 |
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R105 |
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G |
GOUT |
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L105 |
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GSM_RXP |
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F102 |
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3 |
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L106 |
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1 |
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OUT |
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DCS_RXM |
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IN G |
GOUT |
4 |
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C145 |
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L108 |
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2 |
5 |
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L107 |
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DCS_RXP |
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GSM_ANT_SEL2_N |
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F103 |
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L109 |
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OUT |
3 |
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1 |
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4 |
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PCS_RXM |
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IN |
OUT |
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C155 |
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L112 |
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G |
G |
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2 |
5 |
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L111 |
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PCS_RXP |
10-42
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
|
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TX_Q_N |
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TX_I_P |
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C101 |
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C100 |
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0.068NF |
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25V |
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VRFRX1_2.1V |
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TX_Q_P |
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TX_I_N |
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C102 |
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DAC_REF |
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C105 |
C106 |
C107 |
C108 |
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VRFRX1_2.1V |
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VRFRX2_2.7V |
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C1112 |
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RFOUT_IMT |
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C115 |
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RFOUT_DCS_PCS |
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C116 |
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RFOUT_GCELL_EGSM |
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R101 |
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C125 |
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C117 |
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PWR_DET |
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C123 |
C124 |
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C126 |
C127 |
C128 |
C129 |
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17 07 96 86 76 66 56 46 36 26 16 06 95 85 75 65 55 54 35 25 |
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||||||||
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CN GU LGDSN |
SAI BRXT |
FE PQ RDAIC XT |
N IP N 2 2 2 3 2 2 1 1 Q I A A A T T T T T X X D D D U U U U U XT T T DV DV DV OBRF OBRF BORF OBRF OBRF |
2 1 |
PDET_IN |
|
C132 |
C133 |
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|||
RTR6285_TCXO |
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3 |
TCXO |
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GSM850_RXP |
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GCELL_INP |
49 |
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C130 |
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|||||||||||
VRFRX2_2.7V |
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C N |
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A D D |
A D D |
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1 |
VDDA2 |
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GCELL_INN |
51 |
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GSM850_RXM |
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2 |
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50 |
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4 |
VDDA1 |
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H H L H L |
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EGSM_INN |
48 |
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GSM_RXM |
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C134 |
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VDDA1 |
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EGSM_INP |
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GSM_RXP |
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5 |
VTUNE1 |
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DCS_INN |
47 |
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DCS_RXM |
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VRFRX1_2.1V |
||
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6 |
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46 |
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VDDA1 |
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DCS_INP |
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DCS_RXP |
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7 |
VDDA2 |
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GPCS_INN |
45 |
|
PCS_RXM |
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C140 |
C141 |
C142 |
C143 |
|
C139 |
8 |
VDDA2 |
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U100 |
|
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GPCS_INP |
44 |
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PCS_RXP |
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|
9 |
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43 |
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|||||||||||
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10 |
VTUNE_GPS |
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VDDA2 |
42 |
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VDDA1 |
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GPS_IN |
|
RX_GPS |
|
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||
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RX_Q_P |
11 |
PRX_QP |
|
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WDRXLB |
41 |
|
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RX_Q_N |
12 |
PRX_QN |
|
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WDRXHB1 |
40 |
C144 |
|
|
C148 |
C149 |
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RX_I_N |
13 |
PRX_IN |
|
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WDRXHB2 |
39 |
C146 |
C147 |
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RX_I_P |
14 |
PRX_IP |
|
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|
T |
WPRXSE1 |
38 |
C1114 |
|
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||
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15 |
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37 |
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|||||
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|
RX1_Q_P |
DRX_QP |
INDRX CN| |
DBST |
DDAV2 1DDAV |
|
|
U |
|
VDDA2 |
|
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|
UMTS_RXM_2100 |
||
|
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|
|
RX1_Q_N |
16 |
DRX_QN |
MDDV NE2UVT DDAV2 ONRF DDA2V PINWMBX MINWMBX WBRPPXL WMBRPXL WHBRPPX WMHBRPX OWPSEX2R |
WPRXSE2 |
36 |
|
WCDMA_IMT_RX |
|
|
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|
|||||||
|
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|
RX1_I_P |
17 |
DRX_IP |
|
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|
35 |
|
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|
C153 |
C154 |
|
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RX1_I_N |
|
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WPRXSE1_OUT |
|
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|
C152 |
||||
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C1113 |
L110 |
R110 |
|
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||
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|
||||
|
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|
|
SSBDT_RTR |
|
81 91 02 12 22 32 42 52 62 72 82 92 03 13 23 33 43 |
|
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|
F104 |
3 |
|||||||
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|
VRFRX1_2.1V |
|
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|
|
1 IN |
OUT |
L114 |
|
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OUT |
4 |
||
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C157 |
G |
G |
|
R111 |
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2 |
5 |
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||
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C159 |
||
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|
UMTS_RXP_2100 |
R112 |
|
|
|
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|
|
061 C |
161 C |
|
|
|
|
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|
|
C190 |
|
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|
||
|
C162 |
C163 |
C164 |
C165 |
|
C166 |
|
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|
|
UMTS_RXM_2100 |
|
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|
||||
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|
UMTS_RXP_2100 |
|
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|
|
TX_ON |
|
|
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|
C167 |
|
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|
|
|
|
|
VMSMP_2.6V |
|
|
|
|
|
|
|
|
|
|
|
|
VRFRX2_2.7V |
|
|
|
|
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|
|
|
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|
|
|
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|
|
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|
C172 |
C173 |
|
|
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|
|
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|
|
|
|
|
C171 |
|
|
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|
|
C176 |
C177 |
C178 |
|
|
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|
|
|
|
|
|
|
|
10-43
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
10-16. WCDMA Receiver
RX ON
Sector PWR = -50dBm
PAM100 Pin 8
>= -60dBm
Yes
PAM100 Pin 10
>= -70dBm
Yes
DUP100 Pin 2
>= -75dBm
Yes
DUP100 Pin 2
>= -75dBm
Yes
Change U100 & F104 & UCP200
No
No
No
No
Resolder RFS100, C103, R100
,L100, L101, C111
Check PAM100 |
Yes |
|
|
Truth Table |
|
||
Pin 1 : LOW |
|
|
Resolder or change PAM100 |
Pin 27 : LOW |
|
|
|
Pin 28 : HIGH |
|
|
|
|
|
|
|
Resolder L115, C174, C179
Resolder or change L126,
C189, DUP100
10-44
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
V_DC
|
|
|
|
C113 |
C114 |
|
|
|
|
|
|
|
C109 |
RFOUT_DCS_PCS |
R102 |
|
|
TRX_WCDMA2100 |
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
R103 |
|
R104 |
GSM_ANT_SEL1_N |
|
|
|
|
|
|
|
|
|
|
|
|
|
GSM_ANT_SEL0_N |
|
|
|
|
|
|
|
C137 |
C138 |
RFOUT_GCELL_EGSM |
R106 |
|
|
|
|
|
|
|
|
|
|
|
|
|
R108 |
R109 |
|
PAM_RAMP+ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C112 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
26 |
|
|
|
|
|
|
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
|
|
||||
|
|
|
|
|
|
|
TN |
|
|
|
|
|
|
|
|
|
||||
|
VBATT |
|
|
|
|
|
|
|
|
|
|
RX4 |
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
A |
|
|
|
|
|
RX3 |
5 |
|
|
||
10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
6 |
|
|
||||
|
|
|
|
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|
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|
|
|
|
|
|
|
||||
|
WCDMA1 |
|
|
|
|
|
|
|
|
|
|
|
RX2 |
|
|
|
|
|||
21 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7 |
|
|
||
|
DCS|PCS_IN |
|
|
|
|
|
|
|
|
|
|
RX1 |
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
C131 |
||||||||
23 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
GSM_IN |
|
|
PAM100 |
|
MODE |
2 |
|
|
|||||||||||
|
|
|
|
|
|
|
|
|
||||||||||||
27 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3 |
|
|
||
|
BS2 |
|
|
|
|
|
|
|
|
|
|
|
|
RSVD |
|
|
|
|
||
28 |
|
|
|
|
|
|
|
|
|
|
|
|
|
_TXEN |
1 |
|
|
|||
|
BS1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
25 |
|
|
|||||
|
29 GND |
|
|
|
|
|
|
|
|
DNG |
|
DNG |
|
VAPC |
|
|
|
|
||
|
|
DNG |
GDN |
DNG |
DNG |
DNG |
DNG |
|
DNG |
DNG |
91 |
DNG |
DNG DNG |
|
|
|
|
|||
9 |
11 |
21 |
31 |
41 |
|
51 |
61 |
71 |
|
81 |
02 |
22 |
42 |
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
R107
C156
C150
|
|
|
|
|
|
|
ANT |
|
|
|
|
|
|
|
|
|
|
1 |
1 |
1 |
1 |
|
|
|
|
|
|
|
2 |
2 |
2 |
2 |
|
|
|
|
|
|
|
3 |
3 |
3 |
3 |
|
|
|
|
|
|
|
4 |
4 |
4 |
4 |
|
|
|
|
|
|
|
ANT100 |
|
|
ANT101 |
|
RFS100 |
|
|
|
|
|
|
|
|
|
G |
C |
A |
G |
|
|
|
|
|
|
|
4 |
3 |
2 |
1 |
|
|
|
|
|
|
|
C103 |
|
|
R100 |
|
|
L101 |
|
|
|
|
|
|
|
|
|
|
|
|
|
||
L100 |
|
|
|
|
|
C110 |
C111 |
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
F100 |
|
|
|
|
|
L102 |
|
|
|
|
|
OUT |
3 |
|
|
|
GSM850_RXM |
|
|
|
1 |
|
|
4 |
|
|
|
|
|
|
|
IN |
OUT |
|
C121 |
|
C122 |
||
|
|
|
|
G |
G |
|
|
|
||
C118 |
|
|
|
|
|
|
|
L103 |
||
C119 |
|
|
|
2 |
5 |
|
|
|
|
GSM850_RXP |
C120 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F101 |
|
|
|
|
|
L104 |
|
|
|
|
|
OUT |
3 |
|
|
|
GSM_RXM |
|
|
|
1 |
|
|
|
|
|
||
|
|
|
IN |
4 |
|
C135 |
|
C136 |
||
R105 |
|
|
|
G |
GOUT |
|
|
|||
|
|
|
|
|
|
|
|
|
|
L105 |
|
|
|
|
2 |
5 |
|
|
|
|
GSM_RXP |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
F102 |
|
3 |
|
|
|
L106 |
|
|
|
1 |
|
OUT |
|
|
|
DCS_RXM |
|
|
|
|
IN G |
GOUT |
4 |
|
C145 |
|
L108 |
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2 |
5 |
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L107 |
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DCS_RXP |
||
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GSM_ANT_SEL2_N |
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F103 |
|
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L109 |
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OUT |
3 |
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1 |
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4 |
|
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|
PCS_RXM |
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IN |
OUT |
|
C155 |
|
L112 |
||
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G |
G |
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||
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2 |
5 |
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L111 |
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PCS_RXP |
RFOUT_IMT
PAM_R1 PAM_R0 PAM_ON0
|
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V_DC |
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C151 |
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L115 |
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TRX_WCDMA2100 |
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F105 |
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|
1 IN |
OUT |
4 |
C181 |
C169 |
PAM101 |
C170 |
C168 |
|
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|
C174 |
C179 |
|
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|
||||||||||
|
G G G |
|
|
1 |
VCC1 |
VCC2 10 |
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2 3 5 |
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|||
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DUP100 2 |
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||
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2 |
RFIN |
GND 9 |
|
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||
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ANT |
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|||
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3 |
VMODE1 |
RFOUT 8 |
|
|
L116 |
5 |
TX |
RX 7 |
|
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WCDMA_IMT_RX |
||||||
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4 |
VMODE0 |
GND 7 |
|
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C180 |
|
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GGGGGG |
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||||
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||
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5 |
EN |
CPL 6 |
|
C1110 |
|
C1111 |
1 |
3 46 8 9 |
L126 |
|
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|
||||||
|
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|
DNGDNGDNGDNGDNGDNGDNGDNGCN |
|
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|
C182 |
C183 |
|
C184 |
|
1112 13 1415 16 1718 19 |
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|||
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R116 |
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PWR_DET |
|
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|
R117 |
|
R118 |
|
|
|
|
|
10-45
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
