Integra DTR-8.8 Service Manual page 32

A B
Q Q
3 7 6 3 1 5 1 5 0
SCHEMATIC DIAGRAMS-25(SD-25)
NETWORK SECTION-6
NALAN-9121(6/8)
U44
ADDRESS BUS [0:23]
1
TO SD-22:H1
&
SD-23:F1
DATA BUS [0:63]
2
T E
L 1 3 9 4 2 2 9 6 5 1 3
3
4
w w w
5
.
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
C
LAN PC BOARD
25MHz X202
R235
1M
D63 D14
D63
D62 C14
D62
D61 D13
D61
D60 C13
D60
D59 D12
D59
D58 C12
D58
D57 D11
D57
D56 C11
D56
D55 D10
D55/MDC_2
D54 C10
D54/MDIO_2
D53 B10
D53/MIIRXD2_2
D52 A10
D52/MII_RXD3_2
D51 B11
D51/MIIRXDO_2
D50 A11
D50/MIIRXD1_2
D49 B12
D49/RX_CLK_2
D48 A12
D48/RX_DV_2
D47 D18
D47
D46 C18
D46/WOL_2
D45 D17
D45/LNKSTA_2
D44 C17
D44/EXOUT_2
D43 D16
D43
D42 C16
D42
D41 D15
D41/TX_ER_2
D40 C15
D40/RX_ER_2
D39 B15
D39/TX_EN_2
D38 A15
D38/TX_CLK_2
D37 B16
D37/MII_TXD1_2
D36 A16
D36/MII_TXD0_2
D35 B17
D35/MII_TXD3_2
D34 A17
D34/MIITXD2_2
D33 B18
D33/CRS_2
D32 A18
D32/COL_2
D31 L19
D31
D30 L20
D30
D29 K19
D29
D28 K20
D28
D27 J19
D27
D26 J20
D26
D25 H19
D25
D24 H20
D24
D23 H21
D23
D22 H22
D22
D21 J21
D21
D20 J22
D20
D19 K21
D19
D18 K22
D18
D17 L21
D17
D16 L22
D16
D15 T19
D15
D14 T20
D14
D13 R19
D13
D12 R20
D12
D11 P19
D11
D10 P20
D10
D9 N19
D9
D8 N20
D8
D7 N21
D7
D6 N22
D6
D5 P21
D5
D4 P22
D4
D3 R21
D3
D2 R22
D2
D1 T21
D1
D0 T22
D0
+3.3V
R260
AA15
TEST_IN_HIGH
R262
1K A4
TEST_IN_LOW
R263
W17
+3.3V 1K
TEST_IN_LOW
1K
+3.3V
R265
W1
IRQ0/FWE/DTEND1
1K
V4
MODE8/FRE
W3
MODE7/FD7
AA3
MODE6/FD6
AB4
MODE5/FD5
AA4
MODE4/FD4
x a o Y4
MODE3/FD3
y
AB5
MODE2/FD2
AA5
MODE1/FD1
Y5
MODE0/FD0
i
SH7090
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D E
8
+1.2V
+1.2V L203
BLM15AG601SN1
+1.2V
L204
BLM15AG601SN1
R356
V21
CTS2/INTB/PB5/A23
R236:A
V22 1 8
47
DREQ0/RTS0/PB4/A22
V20 2 7
DACK0/RTS1/PB3/A21
R237
U22 1 8 47
DTENDO/RTS2/PB2/A20
U21
2 7
PB1/A19
U20 3 6
PB0/A18
U19 4 5
A17
R238
G21 47
A16
F22 1 R239 8
47
A13
F21 2 7
A14
G22 3 6
A15
G19 4 5
A12
E22 1 R240 8
47
A10
F20 2 7
A8
F19 3 6
A9
Q200:A
G20 4 5
A11
R243
E19 1 8
R5S70900BGV 47
A7
E20 2 7
RISC MICROPROCESSOR A6
E21 3 6
A5
D22 4 5
A4
47
A20 4 5
47
A3
B19 3 6
A1
A19 2 7
A2
C19 1 8
A0
R244
AB2
SCL
AB3
SDA
AB7
TCK
AA8
Q Q TMS
3 AA9 7 6 3
TRST
AB8
TDI
AA7
TDO
B4
MPMD
W5
IRQ1/WDTOVF/AUDCK/DREQ1
AB6
SCK1/ASEBRKAK/BRKACK/FR/B
AA6
SCK0/AUDSYNC/FCLE
V3
FCE
Y16 +3.3V
BS
AB15
TEST_OUT_OPEN
Y6
TXD1/AUDATA3
W6
RXD1/AUDATA2
W2
VIN2/RXD2/PA2
Y1
VIN1/TXD2/PA1
Y7
TXD0/AUDATA1
W7
RXD0/AUDATA0
R258
AB17
RDY
1K
B20
CS2
R259
A21
CS1
R236:B
W18 47 3 6
CS0
Y17 4 5
RD
47
R261
C21 1 8
RAS
C22 2 7
CKE
D21 3 6
R/W
D20 4 5
CAS
47
R264
M19 1 8
DQMUU
M20 2 7
DQMLU
M22 3 6
DQMLL
M21 4 5
DQMUL
R273
A13 1 8 47
DQM64LU/WE1
B13 2 7
DQM64UU/WE3
A14 3 6
DQM64LL/WE0
B14 4 5
DQM64UL/WE2
R274
B22 47
CLKOUT
22
+3.3V +3.3V
u 1 6 3
R275
AA16
NMI
10K TP200
.
R277
AB16
PRESET
1K
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F G
2 4
9 9 8
NOTE
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
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 (
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)
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
A23
A22
A21
A20
A19
A18
A17
A16 +3.3V
A13
+3.3V +3.3V
A14
A15
A12
A10 7
WC
A8 1
E0
A9 6 2
Q207
SCL E1
5
A11 3 IS24C04A-2ZLI
SDA E2
A7 E2PROM
A6
A5
A4
A3
A1
A2 +3.3V
A0
TCK
TMS
1 5 1 5 0 8 9 2 TRST 4
TDI
TDO
HUDI_MPMD
AUDCK
ASEBRKAK
AUDSYNC
AUDATA3
AUDATA2
AUDATA1
AUDATA0
R255
R256
0
R253
0
R254
0
0
DQM64LU
DQM64UU
DQM64LL
DQM64UL
m
c o
DTR-8.8
H
2
9 9
! ARE CRITICAL FOR SAFETY.
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
PRINTING SIDE
9 8 2 9 9
TO SD-27:B4,D4
USER DEBUG
TERMINAL
TXD2
RXD2
TO SD-27:F4
TXD1
RXD1
XCS1
XCS0
XRD
XRAS
SDCKE
XWE
XCAS
DQMUU
TO SD-23:H5
DQMLU
DQMLL
MEMORY SECTION
DQMUL
SDCLK
XRESET
TO SD-27:F4