Motorola L2, Service Manual

Page: 52 / 54

GSM SERVICE SUPPORT GROUP 2005.09.12
LEVEL 3 AL Block Diagram Rev. 1.1
L2_L6
Michael Mauderer, Alexander Buehler Page 2of 2
L2_L6
Revision Overview
Rev. 1.0: Initial Block Diagram
Rev. 1.1: Updated Charger logic levels
D1480
LED´s
(clock)
CLK 13 MHZ
V12
CLK_32KHZ_2_7V P16
TIMER
WDOG K10
CNTL.
PRI SPI
LOGIC
Logic
G
4
, J
4
..
...
..
Switcher
BB
-SP
I_C
LK
BB
_SP
I_M
OS
I
BB
_S
PI_M
IS
O
AU
L CS
U1
8
U16
T18 T1
7
R5
Interface
USB
Y900
V17
D12 RTC_BATT
V16
B+
HAND_SPKR-
HA
T6
R7
T9
P9
V10
U8
ON
1B
F1
4
B4
E3
F3
U900
ATLAS UL
ON
LOGIC
OWB
THERM
GND
CHRGCTRL
B16
VBUS
S
G
D
CHARGE
Charger
BATT CONN.
CNTL.
LED
E12
BB SA
P FS
BB
S
A
P
CL
K
BB
S
A
P
T
X
BB
S
A
P
R
X
Neptune Atlas
CODEC
16 BIT
STEREO
(tx) (rx)
Communication
ALERT-
ALERT+
STANDBY F12
(to Neptune and U301 BT)
AU
L_
IN
T
N14
RESETB
(from U800)
Neptune Atlas
Communication
UID H8
Q904 (M3)
G
S
B+
B12 BATTFET
Battery to BPLUS
US
B
_
V
P
IN
US
B
_
X
R
XD
US
B
_
V
P
OU
T
U
S
B_
VM
IN
U
S
B_
TX
ENB
US
B
_
V
M
O
U
T
USB/RS232
(communication)
B2 C4 F4 B1 B3 E4
MIC_INM
MIC_BIAS1
Det.
Stereo
B
o
os
t 3
00mA
G1
6
Switcher
B
u
ck 350mA
F1
6
( 1,
8
75V
)
VB
UC
K
H2
( 2,
77
5V
)
PER
IPH
_ RE
G
U6
( 2,
77
5V )
AU
D
_
RE
G
M1
8
( 1,
27
5
)
GR
AP
H_R
E
G
K1
7
H4 H3
( 2,
77
5V
)
RF
_R
E
G
L1
6
( 1
,575
V
)
RE
F_
R
E
G
N5
( 1,
8/
3
V
)
SI
M_
R
E
G
VS
IM
VS
IM
_EN
K1
1
VBUS
CONTR.
D6
AD
(One Wire Bus
to Neptune)
BPFET
VBUS to BP
Switch
(Main Source
for Atlas)
(from Mini USB Connector)
Main Charge Path
B+ support without Ext Charger
B+ support with Ext Charger
Color definition only for this section !
D902
BB_SAP_TX
BB_SAP_RX
BB_SAP_FS
BB_SAP_CLK
(framesync)
Bluetooth
U300
32 30 28 27
BLUE_WAKEB
11
BLUE_HOST_WAKEB 9
TXD2 5
CTS2
RTS2
31
RXD2 33
29
RESET_B
22
(from Neptune/ Atlas)
(from/ to Neptune
Serial Audio for Ringtone
and Voice Audio)
PERIPH_REG
10
BT_REG 21
BT_ANTENNA 25
Strip Line
Antenna
(on PCB)
Y300
15
16
12
V
IB_
RE
G
(t
o
V
ibra
tor
P
ad
s
(from Neptune)
NeptuneAtlas
Neptune Atlas
USB/ RS232
Communication
C6
B6
CONV.
D/A
CLK_32KHZ
(from Atlas)
1
M1262
1
2
(from Atlas)
( 1,
3V
)
(from/ to U301 BT,
Neptune - BT - Neptune
Communication and Wakeup)
Internal
Mic
Alert
Pads
EXC_EN U15 (from Neptune, Tx Mode indication for Atlas)
( 2,
77
5
)
IO
_RE
G
( 2,
77
5 )
CAM
_
R
E
G
( 5,
5V
)
VB
OO
ST
4
3
VBUS
5
2
1
(to Charging Circuit)
G1-G4
(Shield)
UID
CLK_32KHZ R16
D-
D+
VBUS 5V
Pass FET
VBOOST
VBUS D2 (PPD device support)
1
3
(to J1300)
C91
3
C
929
to
V
ib
ra
tor
VIB REG
P2
B+ Sense
Mo
to
r
ne
ar
R
T
C Ba
tt
er
y
RE
F R
E
G
RF REG PE
R
IP
H
IO REG AUDIO
REG
IO
REG
GR
A
P
H
REG
CA
M
E
RA
REG
K2
( 1,
87
5V )
BT
_
R
E
G
BT
R
E
G
4
Microphone
R3 P4 R4
(t
x)
(r
x)
13 Bit
Handset
Amplifier
Q9
01
VC
O
RE
G
VCO
_
D
R
V
(M
ain
Sour
c
e-
f
rom M
3
)
( 2,
77
5V
)
AG
_R
E
G
V2
S
G
D
Q903 (M4)
Q905
G
S
M1
3 2 4 1
R910 R911
D
Switch
B14
(Current Control)
Q906 (M2)
DISP_LED2
DISP_LED3
DISP_LED1
(only us
ed in At
las
)
LEDKP
C5
(t
o U800
)
(A
tlas
internal
a
n
d
AL
cir
cuit)
( to U7
00, U800, U9
00)
(t
o J
1
4
01)
(t
o Neptun
e
am
d M
1350)
)
(t
o U800)
(t
o U300)
(t
o U800, U
1301)
(t
o Atlas
, J
887
(t
o U50, U15
0
Bluetooth
Mini USB
Charger and Power-
source Control
(from J887 - Keyboard LED´s Sink connection)
(from/ to Neptune and U700)
(from Atlas)
(from Neptune)
THERM_BIAS
(Bias Voltage from
Neptune)
(Accessory Detection signal)
(EXT Power)
(EXT Power)
VR
324
Det.
Headset
BLUE_CLK_ENB 13
3
4
1
+
U2
00)
ESD
RV922
VR1200
RV1202
RV923
SAP
Supply
Amplifier
Alert
Amplifier
Headset
Amplifier
EMU
J2003
UR
XV
P
UR
CV
D
UD
A
T
PV
UR
XV
M
UT
XE
NB
US
E0
VM
J2000
A3
A1
FL1200 C3
C1
2
1
P1000
Earpiece
Connector
(sink-
circuit)
D1482 - D1485
D1487 - D1490
D1491
J1400
1
2
RTC
Battery
BA
T
T
+
PE
R
IP
H
_
R
EG
(Bi
as
)
(from Mini USB Connector)
THERM
P13
BATTISNS
BATT+
D14
U14
C15
(Battery Sense)
(VBUS Sense)
SIM_PD
T14
CHRGRAW
(Batt Current)
CHRGISNSP
E15
(Charger C )
(toNeptune)
BATTISNS
F13
(Charge Current - )
(M1)
and J
1403)
(t
o U1301)
K1
6
( 2
,700
V
)
VM
_R
E
G
RF REG
(t
o U800)
1 21 GND GND
GND
ON1B
GND
KBR6
KBR5
KBC1
KBC0
KBR4
g1- g4
GND
KBR3
KBR2
GND
KBR1
KBR0
GND
MIC_BIAS1
GND
GND
KBR7
(to Keyboard via
0-9,*,#,
Left-Right,
Center,
Soft L+R,
Menu, Send,
Volume U-D
Smart,
Customer
Clear
Power Key
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 LEDKP
VBOOST
GND
LT_SNS_CTL
ADC_DATA
GND
ANT_DETB
SIM_RST
SIM_REG
GND
GND
SIM_CLK
SIM_DIO
GND
ALERT-
ALERT-
ALERT+
ALERT+
GND
(f
ro
m Keypad)
1
6
4
2
3
GND
Connector
M1350
1.8 or 3V
SIM Card
5
Keyboard Connector)
(to Keyboard via
Keyboard Connector)
Keypad
Matrix
DS805
1
2
6
Light
Sensor
SIM
KEYBOARD
GND
GND
ON1B
GND
KBR6
KBR5
KBC1
KBC0
KBR4
KBR3
KBR2
GND
KBR1
KBR0
GND
MIC_BIAS1
GND
GND
KBR7
LEDKP
VBOOST
GND
LT_SNS_CTL
ADC_DATA
GND
ANT_DETB
SIM_RST
SIM_REG
GND
GND
SIM_CLK
SIM_DIO
GND
ALERT-
ALERT-
ALERT+
ALERT+
GND
GND
1 21
g1- g4
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GND
J1403
J1000
Keyboard Connector
Main Board
Flexprint - Board to Board
1
2
Smart Key
(Part of the
Flexprint)
(to Atlas)
(from Atlas)
(from Neptune)
(from Neptune)
(from Neptune)
(to Neptune)
(from Atlas)
(from Neptune)
(from Atlas)
(to Neptune)
(to Neptune)
(from Neptune)
(from Atlas)
(from Atlas)
(from/ to Atlas)
(from Atlas)
Main Board Connector
(to Atlas)
(from J1403 - Keypad Backlight Sink connection)
LOBATI
V18 (Low Battery indication to Neptune)
(Cl
o
ck
)
(F
rame
Sy
nc
.)
L / H / H
H / L / L
H / H / H
H / H / H
L / H / H
L / H / L