Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Pantech Mobile Phones PANTECH GB300 PANTECH GB300
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1 2 3 4 5 6 7 8
A A
VCC_RFCHIP
C338 C339
100nF 100nF GSMON
A301
PCSON INTENNA
U304
SI4205 9 32 C354 C337
VDD1
VDD2
270pF 270pF
RFIGN 21
28 RXQP
QP_TX_RX LNA
RFIGP 20
B 1 RXQN
DAC PGA
CHANNEL
ADC PGA
RFIDN 19 B
QN_TX_RX FILTER
LNA
2 RXIP RFIDP 18 C304 1.2pF F301
IP_TX_RX B7820 U320
RFIPN 17 R335
3 RXIN
DAC PGA ADC PGA
L301 3 SHS-C090DR 2 11
IN_TX_RX LNA OUT1 0
RFIPP 16 24nH 1 10
VC2
VC1
VTCXO RFLA RFLB
1608 4 OUT2 IN RX_GSM850 C307 J301
C311 100pF 27 XOUT RFLC RFLD C305 1.2pF G2G1 1 33pF KMS-507
REF_CLK 100KHZ 0 / 90
52 L310 RX_PCS 8 1 2
TBD ANT IN OUT
GND1
GND2
5
26 XEN TX_GSM850
C306 VCXOEN 3 C308
G1
G2
G3
G4
G5
G6
G7
2.2uF C333 TX_PCS TBD 3 4
(1608) 8 XIN C316 1.2pF F303 4 6 7 9 121314
27pF DIV 1.2
DIV 65
RF1
RFLOP
U302
DIV 130
PHASE B7821 L317
VC-TCXO-212C4
DET
L306 3 2.2nH
4 RF2 OUT1 1
RFLON 6.8nH
VCC R313 C334 1608 4 OUT2 IN
1 3 100R 1nF SELF C318 1.2pF G2G1
C AFC VCOUT TUNE 52 L307 C
GND 10 PDNB POWER TBD
C315 PDNB CONTROL
2 DIV N
82nF
C340 33pF RF PLL
25
14 SDI DIAG2
SYNTHDATA IF PLL 24
11 SDO
DIV N DIAG1
SERIAL
C341 33pF SELF
I/O TUNE
13 SCLK
SYNTHCLK IFLOP
12 SENB PHASE
SYNTHEN DET
DCSSEL
IFLON VBAT
C342 33pF L326
IFLA IFLB
REG Z301 C319 1nH
C343 33pF ATTN C320 C321
22pF
6dB 1 4.7pF 10nF
D DIV 2 RFOG 23 2 D
IN_TX_RX
L303
C323 4 TXIP
REG
C309 TBD
180pF 3 4 2 4 8 10 12
5 TXIN 0.5pF
BAND
VBAT
VCC1
VCCOUT
VCC2
IP_TX_RX PHASE DIV 1.2 RFOD 22
6 TXQP DET
QP_TX_RX U303
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
RF3133 TX_PA
7 TXQN
C324 Z302 7 9
180pF 3635343331302915 ATTN GSMIN GSMOUT C325
2 6dB 1 100pF
3
QN_TX_RX 6 TXEN
VAPC L350
3 4 1nH
1 11
DCSIN DCSOUT
E E
C327
5 0.5pF
G10
G11
G12
G13
G14
VREG
G1
G2
G3
G4
G5
G6
G7
G8
G9
R306
15K
RAMP 1314151617181920212223242526
VBAT VCC_RFCHIP
C329 C328
68uF 82pF
(3216) U305
CONFORMAL
1 5
2 VIN VOUT
3 GND 4 VCC_RFCHIP
VCXOEN ON_OFFBP
C331 C330
LP39851-2.8 Engineer
2.2uF 1nF spat2 COMPANY NAME
F C332 (1608) Drawn by Address
F
470pF spat2 City
R&D CHK TITLE: Size
A3
DOC CTRL CHK
MFG ENGR CHK
GB300 RF
Changed by Date Changed Time Changed QA CHK REV Drawing Number Sheet of
spat2 2004.07.21 4:23:50 pm 1.0
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
A 1.8V_D 2.8V_M 2.8V_M VSIM A
F100
FUSE(1608) C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114
VCHARGE 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
VBAT
J101 D118
3050-24R-0.5MSG CRY82 2.8V_M J104
24 MOTOR_PAD
VCHARGE1 23 R101 0 1
VCHARGE2 MOTOR+
R102 (1608)
18 100K 2
VBAT1 19 VBAT A MOTOR-
VBAT2 R104
B 100K C360 C194 B
12
POWERON# #POWERON R103 Q103 NC 2.2uF
100K
3
17 R105 100 NUD3105 (1608) (1608) C361 C362
ACCDIENT R174
470 1 DRAIN 10nF 10nF
22 R107 100
USC5 VIBRATE GATE
21 R108 100 SOURCE
USC4
2
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