sgh-e100 service training hardware. inhalt 1. leiterplattenlayout 2. blockschaltbild hf 3....
TRANSCRIPT
Service Manual Schaltplan
SGH-E100SERVICE TRAINING
Hardware
Inhalt
• 1. Leiterplattenlayout
• 2. Blockschaltbild HF
• 3. Schaltplan HF
• 4. Meßmethode HF
• 5. Flussdiagramm Fehlersuche
Tx VCO
Endstufe
Antennen-umschalter
HF Meß-anschluß
VCTCXO 26MHz
Tranceiver IC
DCS SAW-Filter
GSM SAW-Filter
1. Leiterplattenlayouts
100 kHz+fm od
REFIN
VTCXO
pi - P AD
pi - P AD
I+
fm odI-
Q +
Q -
~~
pi - P AD
MURATA E G SM RX SAW Filter SAFSD942MFM0T00R00
IL=3.2dB maxRipple=2.2 dB max
Vc c _ RF_ VC O
Disc rete 3rd O rder Loop F ilter
SAMSUNG ELECTRO-MECHANICS TX VCO
VOU1810F27KRA (8.0 X6.0X 1.6 mm)GSM = 824 ~ 915 MHz(Vt=0.5V ~ 3.0 V )
DCS = 1710 ~ 1910 MHz(Vt=0.5V ~ 3.0 V )
Harmonics <= -10dBc
RFMD PAMRF3140
G SM: P out = 35.0 dBm E ff = 60%DC S: P out = 33.0 dBm Eff = 55%
Disc rete 3rd O rder Loop F ilter
R X O N
Vc c _ Tx_ BURST
G SM IN
HITAC HI ME TAL ANT SWITC H
SH S- M090TC (S IZE)Imax = 10 mAF req (MH z) Loss 880 - 915 1.2 dB 925 - 960 0.9 dB 1710 - 1785 1.2 dB 1805 - 1880 1.2 dB
Atten 2xfo : 40dB ,27dB(G SM,DC S) 3xfo : 35dB ,21dB(GSM,DC S)
EN
C LK
DATA
DC S S / W
O FFSE T Mixer input power- 16dBm max, - 22dBm min
fc ompRF=26MHz
Philips Transc eiverUAA3536
Pins IA,IB,Q A and Q BVIQ : 1.25Vtyp. , 1.15Vmin, 1.35Vmax
Vmod : 0.5Vpp
E G S M _M O D E _S W
VCC_RX_TX
V c_E G S M
D C S _M O D E _S W
V c_D C S
Inve rte r c ircu its
QUAD
MURATA DC S RX SAW Filter SAFSD1G 84FA0T00R00
IL= 3.0dB maxRipple= 2.0dB max
DIV
PFDCP
VREG
~
Vc c _ RF_ LO
FracNDIV
1:1/2
VREG
26MHz
Vcc_REF(2.4V typ.)
Vcc_SYN
FESW1
FESW2
3WBUSCTLREG
PW REN
GSM/DCS/PCS
DIVQUAD
PFDCP
fTXIF
60/ 114MHz
+ I OUT- I OUT
- Q OUT
+ Q OUT
F E S W O NS Y N O NT X O NG SM S/ W
PMU
H V S
VDD1 (1 .35V m in 2 .95V m ax , 150m A )
VBat (3 .6V typ 3 .0V m in )
V_MODE
R F 1 _ V D D
R F 2 _ V D D
R F 1 _ V D D S
R F 2 _ V D D S
VDD2 (1 .35V m in 3 .45V m ax , 150m A )VDD3 (1 .35V m in 3 .45V m ax , 100m A )
VDD4 (1 .35V m in 3 .45V m ax , 150m A )
AVDD (1 .35V m in 2 .65V m ax , 100m A )
VCC_RX_TX (2 .7V ,100m A )
VCC_SYN (2 .7V , 100m A )
VCC_RF_VCO (2 .70V , 100m A )
VCC_CP (4 .0V , 25m A )
VCC_TX_BURST (2 .7V , 100m A )
PO N_ SYNTPO N_ TX
VRAMP
TX ENABLE
BAND SELEC T
DC S IN
VBAT
Pout= 6.5 3dBm typ.,Ic <= 30mA
REF_13M
2. Blockschaltbild HF (SYSOL3)
RX-Eingang
TX
TX VCO
26MHz
VCTCXO
IQ-Daten
Transceiver
3. Schaltplan HF
EndstufeTX-VCO Ausgang
Duplexschalter Kontroll-Logik Duplexschalter
Antennen- anpassung
Enstufen-Ausgang
4. Meßmethode HF
Kontrollmethoden des Testprogramms
• Rx Einstellungen
1. Starten des TAT-Programms
2. Einschalte des Gerätes
3. Menü Radio auswählen
4. Basic GSM commands auswählen
5. Rx
6. Rx commands
7. F5(Burst Rx)
8. F6(Continuous Rx)
• Tx Einstellungen
1. Starten des TAT-Programms
2. Einschalten des Gerätes
3. Menü Radio auswählen
4. Basic GSM commands auswählen
5. Tx
6. Tx commands
7. Start Tx
Signalbilder Tx1. GSM (Kanal 62, DAC-Wert=660)
1) TxEN(R207) 2) Band(u201 pin2) 3) GSM IQ data(c117)
4) Ramp(R211) 5) GSM_TX(L204)
1) TXEN(R207) 2) BAND(U201 pin2) 3) DCS IQ data(c117)
4) Ramp(R211) 5) DCS_TX(L205)
2. DCS (Kanal 698, DAC-Wert=600)
CH frequency TXLO frequency RXLO CH frequency TXLO frequency RXLO1 890,2 1900,4 935,2 1870,6 512 1710,2 1824,2 1805,2 1805,330 896 1912 941 1882,2 586 1725 1839 1820 1820,162 902,4 1924,8 947,4 1895 612 1730,2 1844,2 1825,2 1825,390 908 1936 953 1906,2 698 1747,4 1861,4 1842,4 1842,5124 914,8 1949,6 959,8 1919,8 746 1757 1871 1852 1852,1975 880,2 1880,4 925,2 1850,6 812 1770,2 1884,2 1865,2 1865,31023 889,8 1899,6 934,8 1869,8 885 1784,8 1898,8 1879,8 1879,9
DCS 1800EGSM900TX RX TX RX
Frequenzplan
5. Flussdiagramm Fehlersuche
MODULE1 Pin5>= - 65dBm Resolder CON201, C210
END
No
Yes
RX ONRF input : CH center freq
Amp : - 50dBm
Check MODULE1pin8 = L, pin4 = L
MODULE1 pin7>= - 65dBm
F100 pin2>= - 70dBm
U100 pin6, 7, 8, 9>= 1V
U100pin32 >= - 70dBmpin33 >= - 70dBm
Check ANT Switchcontrol circuit
Resoder MODULE1
Resolder F100, C104, L102
Resolder L100, L106, L107
Check & ResolderU100
RF26MHz, RF PSU Part
R123, R125, R127,R128 >= 1V
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Check U504
1. GSM Empfänger
MODULE1 pin5>= 20dBm Resolder CON201, C210
TX ON (5Level)
Check MODULE1pin8 = H (2.68V),
pin4 = L
MODULE1 pin1>= 20dBm
U201 pin9>= 20dBm
U102 pin1>= - 8dBm
U201 pin7>= - 11dBm
Change or ResolderMODULE1
Check ANT Switchcontrol circuit
Resolder C220
Resolder R201, R202, R203
U100 pin6, 7, 8, 9>= 500mV
Yes
Check U201+VBATT, pin2~6
OK?Resolder or Change U201
Check +VBATT or PAMcontrol signal
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
END
Check U504
Yes
Check RF26MHz,RF PSU Part
Check U100 pin
4,5,10,22,24,31
OK?
Resolder U100
2. GSM Sender
MODULE1 pin5>= - 65dBm Resolder CON201, C210
No
Yes
RX ONRF input : CH center freq
Amp : - 50dBm
Check MODULE1pin8 = L, pin4 = L
MODULE1 pin11>= - 65dBm
F102 pin2>= - 70dBm
U100 pin6, 7, 8, 9>= 1V
U100pin38 >= - 70dBmpin39 >= - 70dBm
Check ANT Switchcontrol circuit
Resoder MODULE1
Resolder F102, C106, L110
Resolder C107, C108, L109
Check & ResolderU100
RF26MHz, RF PSU Part
R123, R125, R127,R128 >= 1V
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
END
Check U504
3. DCS Empfänger
MODULE1 pin5>= 13dBm Resolder CON201, C210
TX ON (0Level)
Check MODULE1pin8 = L,
pin4 = H (2.68V)
MODULE1 pin3>= 13dBm
U201 pin11>= 13dBm
U102 pin5>= - 12dBm
U201 pin1>= - 15dBm
Change or ResolderMODULE1
Check ANT Switchcontrol circuit
Resolder C208
Resolder R204
U101 pin6, 7, 8, 9>= 500mV
Yes
Check U201+VBATT, pin2~6
OK?Resolder or Change U201
Check +VBATT or PAMcontrol signal
Check, RF26MHz,RF PSU Part
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
END
Check U504 Check U100 pin
4,5,10,22,24,31
OK?
Resolder U100
Yes
No
4. DCS Sender