Tascam DA-98HR Service Manual page 86

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DA-98HR
SCHEMATIC DIAGRAM
1 2
A
P3
1 VCC
2 VCC
R6
R5
10K
3 VCC 10K
R7
4 NMI
47
5 GND
C18
TO
6 SO 100U/10V
MOTHER
PCB 7 GND
R8
8 SI
47
9 GND
10 GND
PH-10P
R3
3.9K
1
9 1 9 8 7 6 5 4 3 2
B
G G A A A A A A A A
R4
2 1 8 7 6 5 4 3 2 1
U4
1.5K
LVC541
Y Y Y Y Y Y Y Y
8 7 6 5 4 3 2 1
1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8
R9
47
R11
47
R10
47
2
U8
R12-R17 A-F
ALL 10K 1
HC14
C
R24-R29
ALL 470
R18-R23
ALL 270
C21-C26
J J
O O ALL 0.1u
S S S S
G G
H H H H
2 1
1 2 3 4
1 2 3 4 5 6 7 8
D
S1
JOG
C1 C2 C6
C3 C4 C5
0.1u 0.1u 0.1u 0.1u 0.1u 0.1u
E
（Page 14/35）
KEY PCB (1/2), SW PCB
3
KEY IN7
KEY_IN6
KEY IN5
KEY_IN4
KEY_IN3
KEY IN2
KEY_IN1
KEY IN0
VER 2
VER_1
C29,C30
12p
R2
X1
10K
29.0
MHz
R1
U2 10K
1 NC 8
NC
2 VCC 7 1
IN
3 RES 6
NC
4 C 5
TP5
GND
TEST
M51957
1 1 1 1 1 1 1 1 1 1 2
C19
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
1u\16V
S S P P P P R V X X V P P P P P P P P P
C O 3 3 3 3 E D 2 1 S 0 0 0 0 0 0 0 0 6
K 0 4 5 6 7 S D S 0 1 2 3 4 5 6 7 7
0 E 1 1
O O I I T I I I I I I I I I
80
SO1 P66 O
79
SI1
78
P27 I
77
P26 I P63 O
76
P25 I P62 O
75
P24 I P61 O
74
P23 I P60 O
73
P22/INTP1 A15
72
INTP0 A14
U1
71
P20/NMI A13
70
1 1
AVREF3 UPD784031 A12
4 6 8 0 2 69
AVREF2 A11
68
ANO1 A10
67
ANO0
3 5 9 1 1 66
AVSS
1 3
65
AVREF1 AD7
64
AVDD AD6
63
P77 O AD5
62
P76 O AD4
61
P75 O AD3
P P P P P P P P P P P P P
7 7 7 7 7 V 1 1 1 1 1 1 1 1 T V A
4 3 2 1 0 D 7 6 5 4 3 2 1 0 E S S A A A
D S S T D D D
0 1 2
O O O O O 0 O O O O O O O O T 0 B
6 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4
0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1
L
C
D
R F S P R
_
W F T L E
D D D
B
D O A C 0 1 2
A
P Y
C
K
D[0..D8]
U7D
TP2 TP3 TP4 12
GND GND GND 11
C7 C8 C9
13
0.1u 0.1u 0.1u
HC00
4 5
LED SHIFT CLK
LED_DATA
LED LATCH
LED_DIS
TP1
GND
2
U7A
1 U7B U7C
3 4 9
2 6
5 1 0
HC00
HC00 HC00
21
22
WR
23
RD
24
LED_SCAN3
25
LED SCAN2
26
LED_SCAN1
27
LED SCAN0
28 A15
29 A14
30 A13
31 A12
32 A11
33 A10
34 A9
A9
35 A8
A8
36
37 A[8..15]
38
39
A A
40 1 1
2 5
U5
1
3
OC
11 4 3 2 1 2
C
A A A N V
D7 9 12 A7
D8 Q8 7 1 1 C C
D6 8 13 A6 5
2 5 C
D7 Q7 A6
D5 7 14 A5 6
D6 Q6 A5
D4 6 15 A4 7
D5 Q5 A4
D3 5 16 A3 8 U6
D4 Q4 A3
D2 4 17 A2 9
27C512
D3 Q3 A2
D1 3 18 A1 10
D D D D D
D2 Q2 A1
3 4 5 6 7 D0 2 19 A0 11
D1 Q1 A0
12
NC
74HC573 13
D0
G
D D N N D
1 2 D C 3
1 1 1 1 1
4 5 6 7 8
D D D D
0 1 2 3
KEY_SCAN0
KEY SCAN1
KEY_SCAN2
KEY SCAN3
KEY_SCAN4
KEY_SCAN5
KEY SCAN6
KEY_SCAN7
KEY PCB (MPU)
6
P0
SDDLB14000
S2P3-VH
0.0047u
8
R31
10K
R30
0
D0
D1
D2
D3
D4
D5
D6
A A
1 1 D7
4 3
3 3
1 0
A A
1 1
A8 29 A8
4 3
A9 28 A9
A11 27 A11
NC 26
OE 25
KEY_SCAN6
A10 24 A10
CE 23 A15
D7 22 D7
D6 21 D6
S2 S3
D D
REC PLAY
4 5
1 2
R38-R45 R46-R53
9 0
ALL 270 ALL 270
D D
4 5
R37
330
D1 D2
L
1SS355 1SS355
C
D
_
B
A
C
K
R P S
E L T
C A O
Y P
Q2 Q3 Q4
R36
68K
DTC114TU DTC114TU
Digital Multitrack Recorder
7
S0
C0
SW PCB
C20
P4
0.1u
VSS
VCC
VEE
RS
R/!W
E
D0
D1
D2
D3
D4
D5
D6
D7
LCDA
LCDK
R33
680
R32
Q1
6.8
PH-16P
2SD1757K
R35
R34 2.7
270
S4 S5 S6
STOP FF REW
R54-R61 R62-R69
ALL 270 ALL 270
D5
D3 D4
1SS355
1SS355 1SS355
KEY_IN4
KEY IN3
KEY_IN2
KEY_IN1
KEY IN0
F R
F W
D
Q5
Q6
DTC114TU
DTC114TU DTC114TU
DA-98HR
1 st Issue; September 2000