TX-NR906/NA906
SCHEMATIC DIAGRAMS-25(SD-25)
NETWORK SECTION-6
A
1
2
3
4
5
B
C
D
E
F
G
H
XRESET
A3
A17
A18
A19
A20
A4
A5
A6
A7
A0
A2
A1
A14
A12
A13
A15
A9
A11
A10
A8
A16
A21
A22
A23
DQMLU
DQMUU
DQM64LU
DQM64UU
DQM64LL
DQM64UL
DQMUL
DQMLL
XRAS
SDCKE
XWE
XCAS
SDCLK
XCS1
XRD
XCS0
AUDATA3
AUDATA2
AUDATA1
AUDATA0
RXD2
TXD2
TXD1
RXD1
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D43
D44
D45
D46
D47
D48
D49
D50
D51
D52
D53
D54
D55
D56
D57
D58
D59
D60
D61
D62
D63
HUDI_MPMD
AUDCK
TDO
TDI
TMS
TCK
TRST
ASEBRKAK
AUDSYNC
USER DEBUG
TERMINAL
MEMORY SECTION
TO SD-27:B4,D4
TO SD-27:F4
TO SD-27:F4
TO SD-23:H5
TO SD-22:H1
&
SD-23:F1
ADDRESS BUS [0:23]
DATA BUS [0:63]
+1.2V
R258
1K
+3.3V
R275
10K
R277
1K
R241
10K
R242
10K
+3.3V
+3.3V
+3.3V
R262
1K
R263
1K
R260
1K
R280
10K
R271
10K
R272
10K
+3.3V
+3.3V
+3.3V
R265
1K
R266
10K
R269
10K
R268
10K
R267
10K
R273
47
1
2
3
4
5
6
7
8
R246
100K
R247 10K
+3.3V
R261
47
1
2
3
4
5
6
7
8
TP200
L203
BLM15AG601SN1
L204
BLM15AG601SN1
R264
47
1
2
3
4
5
6
7
8
R279
10K
R274
22
R259
47
R236:B
47
3
4
5
6
R237
47
1
2
3
4
5
6
7
8
R240
47
1
2
3
4
5
6
7
8
R243
47
1
2
3
4
5
6
7
8
R244
47
4
3
2
1
8
7
6
5
R239
47
1
2
3
4
5
6
7
8
R236:A
47
1
2
7
8
R238
47
R356
47
R245
1K
R256
0
+3.3V
R252
100K
R251
100K
R249
100K
R293
100K
R292
100K
R255
0
R253
0
R254
0
Q207
IS24C04A-2ZLI
E2PROM
6
SCL
5
SDA
4
VSS
3
E2
2
E1
1
E0
7
WC
8
VCC
C263
104K
R235
1M
R373
0
C255
104K
C259
104K
C261
104K
C260
10/16Ta
+
C256
10/16Ta
+
+3.3V
R276
10K
SH7090
D14
D63
C14
D62
D13
D61
C13
D60
D12
D59
C12
D58
D11
D57
C11
D56
D10
D55/MDC_2
C10
D54/MDIO_2
B10
D53/MIIRXD2_2
A10
D52/MII_RXD3_2
B11
D51/MIIRXDO_2
A11
D50/MIIRXD1_2
B12
D49/RX_CLK_2
A12
D48/RX_DV_2
D18
D47
C18
D46/WOL_2
D17
D45/LNKSTA_2
C17
D44/EXOUT_2
D16
D43
C16
D42
D15
D41/TX_ER_2
C15
D40/RX_ER_2
B15
D39/TX_EN_2
A15
D38/TX_CLK_2
B16
D37/MII_TXD1_2
A16
D36/MII_TXD0_2
B17
D35/MII_TXD3_2
A17
D34/MIITXD2_2
B18
D33/CRS_2
A18
D32/COL_2
L19
D31
L20
D30
K19
D29
K20
D28
J19
D27
J20
D26
H19
D25
H20
D24
H21
D23
H22
D22
J21
D21
J22
D20
K21
D19
K22
D18
L21
D17
L22
D16
T19
D15
T20
D14
R19
D13
R20
D12
P19
D11
P20
D10
N19
D9
N20
D8
N21
D7
N22
D6
P21
D5
P22
D4
R21
D3
R22
D2
T21
D1
T22
D0
AA15
TEST_IN_HIGH
A4
TEST_IN_LOW
W17
TEST_IN_LOW
W1
IRQ0/FWE/DTEND1
V4
MODE8/FRE
W3
MODE7/FD7
AA3
MODE6/FD6
AB4
MODE5/FD5
AA4
MODE4/FD4
Y4
MODE3/FD3
AB5
MODE2/FD2
AA5
MODE1/FD1
Y5
MODE0/FD0
AB16
PRESET
AA16
NMI
B22
CLKOUT
B14
DQM64UL/WE2
A14
DQM64LL/WE0
B13
DQM64UU/WE3
A13
DQM64LU/WE1
M21
DQMUL
M22
DQMLL
M20
DQMLU
M19
DQMUU
D20
CAS
D21
R/W
C22
CKE
C21
RAS
Y17
RD
W18
CS0
A21
CS1
B20
CS2
AB17
RDY
W7
RXD0/AUDATA0
Y7
TXD0/AUDATA1
Y1
VIN1/TXD2/PA1
W2
VIN2/RXD2/PA2
W6
RXD1/AUDATA2
Y6
TXD1/AUDATA3
AB15
TEST_OUT_OPEN
Y16
BS
V3
FCE
AA6
SCK0/AUDSYNC/FCLE
AB6
SCK1/ASEBRKAK/BRKACK/FR/B
W5
IRQ1/WDTOVF/AUDCK/DREQ1
B4
MPMD
AA7
TDO
AB8
TDI
AA9
TRST
AA8
TMS
AB7
TCK
AB3
SDA
AB2
SCL
C19
A0
A19
A2
B19
A1
A20
A3
D22
A4
E21
A5
E20
A6
E19
A7
G20
A11
F19
A9
F20
A8
E22
A10
G19
A12
G22
A15
F21
A14
F22
A13
G21
A16
U19
A17
U20
PB0/A18
U21
PB1/A19
U22
DTENDO/RTS2/PB2/A20
V20
DACK0/RTS1/PB3/A21
V22
DREQ0/RTS0/PB4/A22
V21
CTS2/INTB/PB5/A23
W19
VDD_PLL2
AB19
VDD_PLL1
Y19
VSS_PLL2
AA19
VSS_PLL1
AA18
XTAL
AB18
EXTAL
X202
25MHz
C257
050C
C258
050C
NALAN-9121(6/8)
U44
LAN PC BOARD
Q200:A
R5S70900BGV
RISC MICROPROCESSOR
+1.2V
+1.2V
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
!
NOTE
