Sony CAS-1 Service Manual page 86

CAS-1
2-2. SCHEMATIC DIAGRAM - MAIN Board (1/5) -
1 2 3
MAIN BOARD (1/5)
A
B
MTK-1.2V-EN
MTK-1.2V-EN
MTK-AUDIO-DIN3
MTK-AUDIO-DIN3
MTK-AUDIO-BCLK3
MTK-AUDIO-BCLK3
MTK-AUDIO-LRCK3
MTK-AUDIO-LRCK3
MTK-STATUS
>001S
MTK-STATUS
MTK-MUTE-REQ
MTK-MUTE-REQ
MAIN
MTK-CA7EN
C MTK-CA7EN
BOARD
MTK-BUSY
(4/5)
MTK-BUSY
(Page 9)
MTK-A-BUSY
MTK-A-BUSY
MTK-RESET
MTK-RESET
MTK-UART-TXD
MTK-UART-TXD
MTK-UART-RXD
MTK-UART-RXD
D
E
C902
0.047
C901 R903 C904
4.7 10 0.1
F
R902
0
C903
0.047
C900 R904 C905
4.7 10 0.1
DGND
G >002S
VDD_1.5V_MTK
VDD_1.8V_MTK
MAIN
BOARD VDD_STBY3.3V_MTK
(5/5)
VDD_3.3V_MTK
(Page 10)
VDD_3.3V_SYS
CAS-1
4 5 6
CN900
80P
R907
1 3.3V
4.7k
JL906
3 I2C_SDA
R908 4.7k JL907
5 I2C_SCL
R918 0 JL923
MTK-AUDIO-DIN3
7 I2S_DATA_O
R919 0 JL924
MTK-AUDIO-LRCK3
9 I2S_LRCK_O
JL908
R912
11 Reserved(JTAG_DO)
4.7k
JL909
13 Reserved(JTAG_DI)
R920 0 JL925
MTK-BUSY
15 BUSY_O
JL926
MTK-UART-RXD
17 UART_TXD
JL927
JIG-MODE0
19 JIG-MODE0
21 WoNetwork_O
R913 R921
4.7k 0 23 GND
25 GND
JL910
R914
4.7k 27 GND
29 GND
R910
4.7k 31 GND
33 GND
R909
4.7k 35 GND
37 GND
R911
4.7k 39 GND
41 GND
43 GND
JL900
45 Reserved(I2S_LRCK_I)
47 STBY_3.3V
JL901
R916
49 Reserved(I2S_MCK_I)
4.7k
JL902
51 Reserved(USB_OC1#)
R915 0 JL930
MTK-RESET
53 XRESET
R922 0 JL929
UATXD_MTKTOOL
55 UATXD(MTK Tool)
R923 0 JL931
UARXD_MTKTOOL
57 UARXD(MTK Tool)
59 GND
R917
4.7k 61 GND
63 GND
FB900 JL932
MTK-1.2V-EN
65 1.2VLDOON
JL905
R937
0 67 NC
69 1.5V
C906 C908
R905
4.7 0.1
0 71 1.5V
73 1.5V
75 1.2V
R906
FB901
0 77 1.2V
79 1.2V
C907 C909 FB902 C910
4.7 0.1 4.7
R901
0
C917
R900 4.7
0
7 8 9 10
Refer to page
40 on original
service manual
NETWORK
BOARD
3.3V 2
R925
I2S_MCK_O 4
0
JL933
Reserved(BUSY_I) 6
JL934 R926 0
I2S_BCK_O 8
JL935 R934 0
Mute_Request_O 10
JL915
Reserved(JTAG_CLK) 12
JL916
R933
Reserved(JTAG_SEL) 14
0
JL936
UART_RXD 16
JL937
JIG-MODE1 18
R935
GND 20 0
CL900
R929
ETH_TXVP_0 22 4.7k
CL901
ETH_TXVN_0 24
GND 26
CL903
R928
ETH_TXVP_1 28 4.7k
CL902
ETH_TXVN_1 30
GND 32
CL905
USB0_D– 34
CL904
USB0_D+ 36
GND 38
GND 40
GND 42
GND 44
R930 R954 R927
JL911
4.7k 4.7k 0
Reserved(I2S_DATA_I) 46
STBY_3.3V 48
JL912
R936
Reserved(I2S_BCK_I) 50
0
JL938
MTK-CA7EN
STBY_CA7EN_EXINT 52
R931
GND 54
0
JL939
MTK-STATUS
STBY_STATUS_O 56
JL913
Reserved(USB_EN1#) 58
R932
GND 60
0
USB1_D+ 62
USB1_D- 64
R938
GND 66 0
R940
3.3V 68 100
1.5V 70
1.5V 72
1.5V 74
1.2V 76
1.2V 78
R955
1.2V 80
0
0 5
EN2
0 4
EN1
5.1 3
IN_3
5.1 2
IN_2
1
GND
C911 C912
22 0.1
6 6
11 12 13
MTK-A-BUSY
MTK-AUDIO-BCLK3
MTK-MUTE-REQ
JIG-MODE0
MTK-UART-TXD JIG-MODE1
R945 0
JIG-MODE1 UATXD_MTKTOOL
UARXD_MTKTOOL
R946
0
IC900
USB SWITCH
IC900
BD11600NUX-E2
R956
0
5 6 0
GND OE
0 4 7 0
2D– D–
0 3 8 0
2D+ D+
2 9 3.2
1D– S
1 10 3.2 R957
1D+ VCC 100
C914 R944
0.1 100k
IC901
C913
0.1
VBUS SWITCH
IC901
TPS2560DRCR
SL901
6 0.9
R947 R948 R949 R950
FAULT2
22k 22k 100 100
7 0.3
ILIM
SL900
8 5.1
OUT2
9 5.1
OUT1
10 2.2
FAULT1
C915
0.1
Note: IC901 on the MAIN board cannot replace with single. When
this part is damaged, replace the complete mounted board.
14 15
CN901
7P
7 N.C.
JL917
6 JIG_MODE0
JL918
5 JIG_MODE1
JL919
4 UART_SET/JIG (NC)
JL920
3 UART_JIG/SET
JL921
2 GND
JL922
1 STBY3.3V
CN902
R951 5P
0
CL906
5 SHIELD BUS
CL909 >01S
4 VBUS
CL907
3 D- USB
CL908
BOARD
2 D+
CN162
CL910
Refer to page
1 GND
45 on original
service manual
>003S
USB-OE
USB-SEL
MAIN
VBUS-OVR-DET BOARD
FB903
(4/5)
VBUS-OE
(Page 9)
R952
0
>004S
USB_5V
MAIN
VDD_3.3V_SYS
BOARD
(2/5)
(Page 7)