Russound MCA-C5 Service Manual page 126

5
+3.3V
0.1uF 50V 0.1uF 50V 2.2uF 2.2uF 0.1uF 50V 0.1uF 50V 0.1uF 50V 0.1uF 50V 0.1uF 50V 0.1uF 50V
+ +
C23 C23 C24 C24
C21 C21 C26 C26 C22 C22
D
sh1 RS232/PGM_TXD
sh1 RS232/PGM_RXD
sh7 KEYPAD_STATUS_6
sh8 KEYPAD_STATUS_7
sh7 KEYPAD_STATUS_8
+3.3V
sh7 FLASH_RESET#
C
sh3 DQMLU
sh3 DQMLL
Rotary Switch
sh11 SCN1
sh11 SCN2
sh11 SCN4
sh11 IRQ_RTC#
sh11 IRQ_ETHERNET#
SDRAM_WE#
Rev. ID sh3
sh3 CS_I/O#
sh3 LLWR#
sh3 LHWR#
sh3 RD#
sh1 485_BIAS
sh3 SDRAM-clk
ETHERNET_CS#
B
Mode 2 - Boot
Mode 6 - Normal
sh11 MD2
sh3 CS2-B#
sh3 RAS#
sh3 CAS#
J6 J6
1
2
3
CON3 CON3
A
Greg's Debug Header
R25 R25 4.7K 4.7K
2 1
5
4
C19 C19 33pF 33pF
2 1
Y1 Y1
C20 C20 33pF 33pF
CRYSTAL CRYSTAL
2 1
0.1uF 50V 0.1uF 50V
C25 C25
Firmware Update/RS-232
U4 U4
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
CKE
132
H for SDRAM
133
134
135
136
137
138
139
140
141
142
143
144
H8SX-166X_6 H8SX-166X_6
+3.3V
Debug LED
D5 D5
green
LED LED
R24 R24 1K 1K
2 1
Q2 Q2
2N3904 2N3904
4
3
+3.3V
C28 C28
0.1uF 50V 0.1uF 50V
TRST
PLLVCC
TMS
PLLVSS
TDI
TCK
MD0
PC2/LUCAS/DQMLU
PC3/LLCAS/DQMLL
P50/AN0/IRQ0-B P34/TIOCA1
P51/AN1/IRQ1-B P33/TIOCC0
P52/AN2/IRQ2-B
AVCC P27/TIOC85
P53/AN3/IRQ3-B P26/PO6/TIOCA5/TMO1TXD1
AVSS P32/TIOCC0
P54/AN4/IRQ4-B P31/TIOCA0
VREF P30/TIOCA0
P25/PO5/TIOCA4/TMCI1/RXD1 55
P55/AN5/IRQ5-B
P56/AN6/DA0/IRQ6-B P24/SCK1
P57/AN7/DA1/IRQ7-B P23/ IRQ11-A
P22/PO2/TIOCC3/TMO0/TXD0/IRQ10-A 52
MD1
P21/PO1/TIOCA3/TMCI0/RXD0/ IRQ9-A 51
PB4/CS4-B/WE
PB5/OE/CKE
P20/PO0/TIOCA3/TIOCB3/TMRI0/SCK0/IRQ8-A 49
PB6/CS6-D
MD3
PA0 MD_CLK
PA1
PA2
LLWR
LHWR
RD
PA6
VSS11
PA7
VCC7
PB0
FRONT_USB_RXD sh13
FRONT_USB_TXD sh13
+3.3V
+ + C31 C31 C30 C30
2.2uF 2.2uF 0.1uF 50V 0.1uF 50V
3
2
IIC_CLK sh3,4,11 } I2C
IIC_DAT sh3,4,11
RNET_TXEN sh1
RNET_RXD sh1 } R NET
RNET_TXD sh1
RDS_CPU_RXD sh10
RDS_CPU_TXD sh10
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
72
D6
D5
71
D5
D4
70
D4
69
VSS6
D3
68
D3
D2
67
D2
D1
66
D1
D0
65
D0
64
VCC4
63
KEYPAD_STATUS_5
62
KEYPAD_STATUS_4
61
NMI#
60
RDS_CPU_RTS# sh10
59
UEI_TXD
58
KEYPAD_STATUS_3
57
KEYPAD_STATUS_2
56
KEYPAD_STATUS_1
UEI_RXD
54
53
RDS_CPU_CTS# sh10
50
VCC3
48
VSS5
47
46
VBUS
45
DRVSS
44
+3.3V
USD-
43
USD+
42
DRVCC
41
PM4
40
PM3
39
EMLE
38
A0
37
A1
+3.3V
R20 R20
47K 47K
A[0..23]
A[0..23] sh3
MH1 MH1
1
1
MTHOLE3_5MM MTHOLE3_5MM
2
1
+3.3V
JTAG
+3.3V
J4 J4
1 2
TCK
3 4
TRST
5 6
TDO
7 8
ASERBRK
9 10
TMS
11 12
TDI
13 14
RST
CON14 CON14
RESET# sh3,10,12
+3.3V
U3 U3
2
VCC
1
RST
3
VSS
MCP130T-300I/TT MCP130T-300I/TT
sh8
sh7
sh12
sh8
sh7
sh8
sh12
Emulator Enable
J5 J5
1
2
CON2 CON2
+5V
3.3V to 5V
U5 U5
2 18
A1 Y1 75412_CE
3 17
A2 Y2 74138_A2
4 16
A3 Y3 74138_A1
5 15
A4 Y4 74138_A0
6 14
A5 Y5 75412_DI
7 13
A6 Y6 75412_CLK
8 12
A7 Y7
9 11
A8 Y8
1
G1
19
G2
74HCT541 74HCT541
+5V
C29 C29
0.1uF 50V 0.1uF 50V
Russound Inc Russound Inc
C2 Digital Board CPU C2 Digital Board CPU
C C <Doc> <Doc>
Tuesday, November 25, 2008 Tuesday, November 25, 2008 2 2
1
D
0.1uF 50V 0.1uF 50V
C27 C27
C
B
sh4
sh4
sh4
sh4
sh4
sh4
A
C C
13 13