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DA-78HR
Schematics
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Tascama DA-78HR Schematics

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A
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» SCHEMATIC DIAGRAM DA-78HR HR-MAIN PCB (2/14)
Digital Multitrack Recorder
（Page3/23）
2 nd Issue; July 2000
U1010B
N.C
HIF_S HIF_DT HIF_CK PB-SD2 PB-SD1
CS1 CS0
CSAES
CS_ENC
CS_DEC
3)
FS_DIV
3)
BCK2
4
5
1)
1)
3)
3)
ADR7
140
PF2
GND0
138
139
PF0
PF1
3.072MHZ
614.4KHZ
U1020C 74VHC04A
RDY_DSP
133
134
135
136
137
LEV
8251
VCC1
GND1
GND0
FRET
SIGREF
VRET
VCC1
GND1
R1052 47
R1053 47
R1054 47
7)
MPX
6),7)
BCK LRCKE FSYNC-RE FSYNC-PE
5 6
129
130
131
132
CS0
CS1
CS2
WOFF
SLV*
GND0
R1055 100
8)
8)
8)
128
SEG
DPRAM
SERVO
TRREF
R1056 100
2 3 4 5 6 7 8 9
1
19
127
RAM
GND0 VCC0
VCC0 GND0
GND0
GND0 VCC0
GND0 F-SYNC-R F-SYNC-P
ATF
84
DIGITAL5V
R1057 100
A1 A2 A3 A4 A5 A6 A7 A8
G1 G2
U1038 74VHC541
U1024A
1
2
U1024B
4
5
DIGITAL5V
126
PC7
125
PC6
124
PC5
123
PC4
122
PC3
121
PC2
120 119 118
PC1
117
PC0
116
PB7
115
PB6
114
PB5
113
PB4
112
PB3
111
PB2
110
PB1
109
PB0
108
PA7
107
PA6
106
PA5
105
PA4
104 103 102
PA3
101
PA2
100
PA1
99
PA0
98
PD7
97
PD6
96 95
PD5
94
PD4
93
PD3
92 91 90
PD2
89
PD1
88
PD0
87 86 85
ATFRET TRREF SVRET VRET SIGREF FRET
18
Y1
17
Y2
16
Y3
15
Y4
14
Y5
13
Y6
12
Y7
11
Y8
74HC32
RST_EXT
RST_DSP
MUTE_AER3 MUTE_AER2 MUTE_AER1 MUTE_AER0
3)
4)
4)
4)
1)
1), 4)
4)
LRCK1 LRCK3 256FS3 256FS6 256FS7 512FS1
FS2
3
74HC32
6
PUNCH REF_LVL1 REF_LVL0
AMUTE FS_1_OUT
FS_0_OUT EMP_OUT CONFI
TCSEL
PMUTE
MST:L SPD_MUTE H-CLEAN* CS_SV
SPD_RX/TX PLLSRCO
8.82M_ON
9.6M_ON
EN_HR
9)
SEARCH
E
TAPE_M RMT_REC_LED
FSYNC-R FSYNC-P
1)
3)
3)
6)
7)
1)
MAD1*
MAD2*
MAD3*
MAD4*
LRCK*
BCLK*
SOUT*
SRCK*
LD*
9) N.C N.C
7)
6),8)
6), 8)
6), 8) N.C
9)
7)
8)
6)
7)
7)
6) N.C N.C N.C
MUTE_AER[0..3]
1)
1), 3), 7)
DMUTE
LRCK LRCK2
1)
1)
1)
3)
3)
P1003
1
2
3
4
5
6
7
8
9
10
B10B-PH
5)
5)
9)
FS_0_IN
165
TESTA
TESTB
D6
R1042
164
TVEC0
D7
1)
163
TVEC1
DMUTE
162
GND0
VCC0
160
161
VCC0
TVEC2
GND0
F-SYNC-PE
8)
FS_1_IN
8)
EMP_IN
8)
TP63 X512FS
157
158
159
GND0
VX512
TVEC3
F-SYNC-RE
LRCKE
RCK
156
TVEC4
REN
155
R1043
154
TVEC6
TVEC5
SOUT*
GND0
153
TVEC7
MAD1*
151
152
TVEC8
U1015
CLK_REF
MAD2*
150
TVEC9
TVEC10
MAD3*
MAD4*
148
149
TVEC11
LRCK*
147
GND0
X512FS
BCLK*
GNDO
146
145
VCC0
VCC0
R1113 22
144
PF7
512FS
R1048 22
143
PF6
256FS
R1049 47
142
PF5
BCLK
R1050 47
141
PF4
LRCK
R1051 47
PF3
MPX
R1041
0
6)
6)
SPD_TYPE
EWORD
9)
SWORD
8)
AWORD
1)
1)
SYS_RST
DOUT0 DOUT1 DOUT2
DOUT3 ADR3 ADR4 ADR5 ADR6 ADR7 ADR13 ADR14 ADR15
IOXWR
6)
6)
R1044 100
DIGITAL5V
D0 D1 D2
IOXRD
SPD_COPY
GND
U1020A
1 2 3
1)
CSEIO
1)
RD
DIGITAL5V
U1019
NC GND Y
8)
9)
4)
4)
4)
4)
49.152MHz
2
3
E-FSYNC
EZREMO
18.816MHz
12.608MHz
74VHC04A
4
VCC
U1036A
41
D
Q
PRCL
CLK
Q
U1018
1
NC
VCC
2 3
GND Y
22.5792MHz
U1020B
3 4
74VHC04A
F512FS
V512FS
DIGITAL5V
1)
IOXRD
1 2
DIGITAL5V
5
6
74VHC74
VCC
VDD
4
ADR7
DIGITAL5V
49.152MHz
SPD_CT0 SPD_CT1
TP62 VX512
DIGITAL5V
R1046 100
R1045 100
166
167
168
TEN
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
TLOAD
EWORD SWORD AUXWORD W T RESET VCC1 GND1
24.576MHZ
22.5792MHZ E-FSYNC-P SRCK* LD* EZREMO AUDIO1 AUDIO2 AUDIO3 AUDIO4 A3 A4 A5 A6 A7 A13 A14 A15 A16 RD WR
18.816MHZ GND0 F512FS GND0
12.6MHZ VCC1 GND1 V512FS GND0 VLRCK D0 D1 D2
D3D4D5D6D7
4344454647484950515253545556575859606162636465666768697071727374757677787980818283
D3
D5
D4
TP80
GND
U1036B
1013
12
11
1)
ADR[0..19]
1)
D[0..15]
D
PRCL
CLK
R1114 10K R1115 10K
1)
IOXWR
9
Q
8
Q
74VHC74
R1047 100
VLRCK
1), 4)
RCK
REN
REN RCK
9)
9)
74VHCT00A
N.C
DIN[0..3]
7)
IOXDIN[0..3]
1)
1)
GRLRCK
6
CS_IOX
R1058 22
IOXDIN0 IOXDIN1 IOXDIN2 IOXDIN3 R1059 22
LRCK
RST_EXT
U1009F
13 12
74VHCU04A
U1024C
9
10
74HC32
1)
SYS_RST
R1062 22
TP83
PAD
R1065 22
R1060 22
TP82
PAD
TP84 PAD
R1067 22
R1068 10K
R1072 22
TP85
LRCK2
9 8
DIGITAL5V
1)
DIN0 DIN1 DIN2 DIN3
3), 7)
8
R1061 22
TP81
PAD
R1063 10K
R1066 22
RDY_DSP
TP86
DSP_TRG
3)
U1020D 74VHC04A
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
DIGITAL5V
DEMP1
7)
DOUT3
TDOUT0
TDOUT2
DOUT2
TDOUT1
DOUT1
TDOUT3
131
132
133
134
135
136
VCC
GND
11-12DO
13-14DO 1 2 3 4 5 6 7 8 9
TP87
PAD
GND GND 1-2DI 3-4DI 5-6DI 7-8DI GRALRCKI GND 9-10DI 11-12DI 13-14DI 15-16DI GRBLRCKI GND GND VCCI GNDI GND GND GND CLK GND GND GND GND GND SLRCKIN GND GND GND GND GND GND GND
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
15-16DO
GRBLRCKO
GND
GND
MUTE
MRST*
CS*
RD*
353637383940414243444546474849505152535455565758596061626364656667
CS_IOX
IOXRD
IOXWR
DIGITAL5V
VSS ARLR2 ARLR1 DIV512 TDO EMU1 EMU0 DRDY* LMV* LAV* DIV8 AXLR1 AXBC2 AXBC1 VDD VSS HBCKS CS* HXS HXBCK HRS HR HRBCK AR2 AR1 AXLR2 EMPTY* HX VDD VSS
DIGITAL5V
R1073 22
R1074 22
R1076 22
DOUT0
118
119
120
121
122
123
124
125
126
127
128
129
130
VCC
VCC
3-4DO
5-6DO
7-8DO
GRALRCKO
1-2DO
GND
VCC0
GND0
S-LRCK-0
GND
9-10DO
U1016
IOX-NEW
WR*A0A1
VCC
GNDD0D1D2D3
VCCI
GNDID4D5D6D7
ADR0
ADR1
D2
D3
D0
D1
D5
D4
IOE RAS
HDIR
AX2
TRST
MUTE*
SEL5V3V
ARBC1
ARBC2
AX1
RS*
IOE*
U1017
TMS57070
INT2*
INT3*
CAS
RAS*
INT1*
CAS*
BIO*
VSS
TEST3
VDD
TEST2
EA0
WE*
TEST1
EA0
TEST0
RST_DSP
81828384858687888990919293949596979899
VDD
AX3
50
R1075 22
117
D6
EA1
R1150 47
ED15
116
TEST7
D7
EA2
EA1
ED15
R1141 47
ED14
115
TEST6
EA3
EA2
ED14
R1140 47
ED13
114
TEST5
GND
EA3
ED13
R1139 47
ED12
512FS
113
TEST3
TEST4
PRD*
PWR*
VSS
VDD
VDD
ED12
REC_SD1 REC_SD2
111
112
TEST1
TEST2
PCS1*
PCS2
WE
EA4
EA5
100
EA4/ED16
EA5/ED17
ED11
VSS
31323334353637383940414243444546474849
R1138 47
109
110
GND
TEST0
GND
PA0
EA10/ED22 EA11/ED23
ED11
R1077 22
106
107
108
VCC
T_MODE3
PA1
PA2
EA6/ED18 EA7/ED19 EA8/ED20 EA9/ED21
CLKM0 CLKM1
CLKIN
CLKO
3)
3)
104
105
T_MODE1
T_MODE2
PA3
VCC
DIGITAL5V
IOXCLK
VSS
VDD
TMS
TDI
TCK
VSS
VDD
ED0 ED1 ED2 ED3 VSS
VDD
ED4 ED5 ED6 ED7 ED8 ED9
ED10
103
GND
T_MODE0
GND
PD0
68
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
VCC PD23 PD22 PD21 PD20
GND
VCC PD19 PD18 PD17 PD16
GND
VCC PD15 PD14 PD13 PD12
GND0
VCC0 PD11 PD10
GND
VCC
GND
PD9 PD8
PD7 PD6 PD5 PD4
VCC PD3 PD2 PD1
EA6 EA7 EA8 EA9 EA10 EA11
102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69
DIGITAL5V
R1142 47 R1143 47 R1144 47 R1145 47
R1146 47 R1147 47 R1148 47 R1149 47
DIGITAL5V
R1127 47 R1128 47 R1129 47 R1130 47
R1131 47 R1132 47 R1133 47 R1134 47 R1135 47 R1136 47 R1137 47
TP61 GND
ED15
ED14
ED13 ED12
ED11 ED10 ED9 ED8 ED5
ED7 ED6 ED5 ED4
ED3 ED2 ED1
ED0
ED0 ED1 ED2 ED3
ED4 ED5 ED6 ED7 ED8 ED9 ED10
EA11 EA10 EA9 EA8
EA7 EA6 EA5 EA4
EA3
ED[0..15]
TDOUT[0..3]
DOUT[0..3]
EA[0..11]
C2018
0.1u
ED0 ED1 ED2 ED3 ED4
ED6 ED7
ED8 ED9 ED10 ED11 ED12 ED13 ED14 ED15
EA0 EA1 EA2 EA3
C2019
0.1u
8), 6)
7)
EA3 EA2 EA1 EA0
EA3
ED0
ED1
ED2
ED3
ED4
ED5
ED6
ED7
C2020
0.1u
TD_LRCKO
U1022
15
QA
1
QB
2
QC
3
QD
4
QE
5
QF
6
QG
7
QH
9
QH
74HC595A
U1023
15
QA
1
QB
2
QC
3
QD
4
QE
5
QF
6
QG
7
QH
9
QH
74HC595A
DIGITAL5V
U1024D
12
13
74HC32
3)
DIGITAL5V
U1021
1
VDD
2
DQ0
3
DQ1
4
DQ2
5
DQ3
6
VDD
7
DQ4
8
DQ5
9
DQ6
10
DQ7
11
N.C
15
N.C
16
N.C
17
WE
18
RAS
19
N.C
20
N.C
21
A0
22
A1
23
A2
24
A3
25 26
VDD VSS
T2316162A-45S
C2021
C2022
0.1u
0.1u
8)
SER
SRCLK SRCLR
RCLK
SER
SRCLK SRCLR
RCLK
C2102 10u
FS2
C2023
0.1u
DIGITAL5V
14
11 10
12 13
G
14
11 10
12 13
G
11
50
VSS
49
DQ15
48
DQ14
47
DQ13
46
DQ12
45
VSS
44
DQ11
43
DQ10
42
DQ9
41
DQ8
40
N.C
36
N.C
35
CASL
34
CASH
33
OE
32
A9
31
A8
30
A7
29
A6
28
A5
27
A4
C2024
C2036
0.1u
0.1u
VB0
VB1
VBEN
U1020E
11 10
74VHC04A
ED15 ED14 ED13 ED12
ED11 ED10 ED9 ED8
EA9 EA8 EA7 EA6 EA5 EA4
DIGITAL5V
C2015
C2016
1u
1u
3)
3)
3)
C2017 1u
Page 2
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» SCHEMATIC DIAGRAM DA-78HR HR-MAIN PCB (6/14)
（Page7/23）
Digital Multitrack Recorder DA-78HR
2 nd Issue; July 2000
U1403D
9 8
74VHCU04
U1403E
11 10
74VHCU04
U1403F
13 12
74VHCU04
2)
2)
2)
2)
2)
R1401
1)
RAC1608-470 1 2 3 4 5
1 2 3 4 5
R1402 RAC1608-470
R1411
47
SYS_RST
8 7 6
8 7 6
U1404E
11 10
74VHCU04A
9 8
DIGITAL5V
GND
2)
DIGITAL5V
TDOUT[0..3]
FS_1_OUT
2)
FS_0_OUT
2)
6)
1)
2)
2)
SPD_RX/TX
2)
EMP_OUT
SPLRCK
BCK
256FS6
VCC VDD
TDOUT3
13 12
SPD_MUTE
SPD_CT0
SPD_CT1 SPD_TYPE SPD_COPY
U1404F
74VHCU04A
U1404D 74VHCU04A
2 3 4 5 6 7 8 9
1
19
U1401
A1 A2 A3 A4 A5 A6 A7 A8
G1 G2
74VHCT541
R1403 RAC1608-103
18
Y1
17
Y2
16
Y3
15
Y4
14
Y5
13
Y6
12
Y7
11
Y8
DIGITAL5V
678
123
4 5
DIGITAL5V
R1424 100K
C1411 18p
SPD_UL
R1404 1 2 3 4 5
RAC1608-470
1
TX
2
RST
3
RX1
4
NFR
5
RX2
6
RXSEL
7
PD1
8
PD2
9
ULCK
10
RXCKI
11
RXCKO
1)
8 7 6
DIGITAL5V
R1409 10K
VSS
VDD
IRQU
SETSY
IMSTRT
USYNCI
USYNCO
U1402
M51581
SDI
SCKWSSDO
ADSDI
VSS
ADSEL
1213141516171819202122
R1405 47
3435363738394041424344
LTDT
LCNT1
LCNT0
LRCKPOL
FLAGI
FLAGO
WCK
LTCK
LTEN MODE1 MODE0
MUTE
CKACO
REFCK CKSEL MSTCK
MSBF
ASL
33 32 31 30 29 28 27 26 25 24 23
IIS
DIGITAL5V
R1410
0
DIGITAL5V
R1423 270
1 2
3 4
5 6
R1406 47 R1407 47 R1408 47
R1434 22
R1425 150
U1404A
74VHCU04A
U1404B
74VHCU04A U1404C
74VHCU04A
SPD_FS0 SPD_FS1 SPD_EMP
MCK_EX
R1422 150
1)
C1408
0.01u
R1420
150
C1407
0.01u
1)
1)
1)
1 2
1 2
R1421 150
L1404 BK2125HS101
L1403
BLM21A601S
SPDIF_IN
SPDIF_OUT
SIGNAL_GND_B
C2401
0.1u
C2402
0.1u
DIGITAL5V
C2404
0.1u
C1402
R1418
C1405 18p
100K
U1403B
3 4
74VHCU04
L1402
3.9u
+9V
C1409 100u/16V
U1407 78L05
3 1
IO
G
2
C1410 10u
L1401 47u
C1401
100u/16V
C2403
0.1u
R1415 10K
R1416
1.8K
1 2
0.1u
147
U1403A
74VHCU04
C1403
R1417 1K
D1401
HVU17
C1404
2200p
5 6
C1406 220p
R1412 47
U1403C
74VHCU04
R1419 47
TP192
SPD_MCK
ASLRCK
1)
R1413 47 R1430 47 R1431 47 R1432 47
AESIN0 AESIN1 AESIN2 AESIN3
AESIN[0..3]
AESIN[0..3]
1)
Page 3
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» SCHEMATIC DIAGRAM DA-78HR HR-MAIN PCB (7/14)
（Page8/23）
2 nd Issue; July 2000
Digital Multitrack Recorder DA-78HR
TO REC HEAD
1)
1)
SYS_INT
TX_FRNT
NMI_FRNT
RX_FRNT
TX_FRNT
TO KEY PCB
REC-BP
3)
REC-BN
3)
REC-AP
3)
REC-AN
TAPE_ME
2)
RST_EXT
1)
3)
REC_BP
REC_BN
GND
REC_AP
REC_AN
2)
H-CLEAN*
FROM HEAD
RX_FRNT
1)
GUARD_A1
5)
5)
EQOUT
GUARD_A2 GUARD_B1 EQOUTB
GUARD_B2
5)
5)
5)
5)
TO HD49229
REC_INH_S
PARITY
ATF_DATA
GND
3)
3)
2)
3)
4)
4)
PART Y
ATFTRG
FSYNC-P
SVPDCK
6.304MHz
9.408MHz
ATF_TRG
FSYNC_PB
SV_PDCK
SWH_PB
ATF_CLK
GND
TO SERVO
TO AUDIO SECTION
10)
2)
AMUTE
AMUTE_BUF
9.408MHz
2)
PMUTE
3)
ATF-DAT
1)
ALRCK[0..3]
3)
SWH
2)
DOUT[0..3]
GND
2)
1)
CLK_MECH
1)
CS_SV
TX_MECH
RESET
CS_SV
ACK_SV
REQ_SV
SO_U
TO SERVO
1)
DIN[0..3]
PMUTE_BUF
ALRCK0 ALRCK1 ALRCK2 ALRCK3
DOUT0 DOUT1 DOUT2 DOUT3
DIN0 DIN1 DIN2 DIN3
SI_U
SCK
1)
ACK_SV
1)
REQ_SV
1)
RX_MECH
2)
2)
8)
2)
256FS7
BCK
DEMP0
DEMP1
A256FS
BCK-BU
DEMP0
DEMP1
ALL)
DIGITAL5V
ALL)
4)
GND
+9V
+5V
FROM POWER SUPPLY
GND
+9V
GND
2)
FSYNC-P
3)
3)
3)
4)
12.608MHz
ERR_FLG
UC_FLG E_STRB
3)
DTRS  
ERR_FLG
UC_FLG
E_STRB
12.608MHz
FSYNC_P
MPX
DTRS
+11V
ALL)
GND
8)
UR11V
GND
POWER DOWN
2)
MPX
ALL)
GND
PWR_DOWN
1)
Page 4
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» SCHEMATIC DIAGRAM DA-78HR SERVO PCB (1/2)
（Page18/23）
Digital Multitrack Recorder DA-78HR
2 nd Issue; July 2000
U903C
74HC14
R601
47K
1
1
1
1
1
1
7
8
9
0
1
2
3
4
5
V
S
A
N
F
F
F
F
G
G N D
G N D
1/4
R608
1
R607
1
1/4
5 6
C
T
N
C
G
G
G
G
N
C
G
.
I
I
O
O
D
1
B
L
N
N
1
2
Y
E
-
+
.
W
W
V
V
U
U
G
F
I
I
I
I
I
I
B
N
R
N
N
N
N
N
N
R
D
C
2
1
2
1
2
1
1
1
1
1
2
2
2
2
2
6
7
8
9
0
1
4
2
3
R
R
R
O
E
N
V
C607
1000P
C608 1000P
C913
D701
100u/16V
9V
+9V
+5V
+5V
9V
to RFC
R512
9V
Q500 2SA1314
82
R513
470
1/4
DTC123JK
C_ERR
RF E
MP_ME
SWP
ATF_CLK
ATF_ERR
ATF_TRG
PR_SW
ATF_DATA
SEL1
SEL2
+5V
GND D
GND A
Q103
/10V
C801
10u
+5V5V
L500
390uH
D500 EC10QS04
1234
G
+
N
5
D
V
TO PSY PCB
(OS) (OS)
CFG
CFG
9V
C800 10u/16V
P909
4P
+
G
9
N
V
D
C510
47/20V
R408
C903
9V
Q400
2SA1314
470
R409
470
1/4
Q102
DTC123JK
D_ERR
U905 TC7S08FU
3
2
4
1
5
+5V
U904 8 7 6 5
0.1
3
1
S
VCC
2
C
DU
3
D
ORG
4
Q
VSS
M93C46
U902A
11
2
1
6
CMRO CMFO
P911
2P
TO CASSET MOTOR TO CASSET CONT
TO SLED MOTOR
L
L
M
M
F
R
P910
2P
12
C702
0.1u
TO DRAM MOTOR
P905
1
W
2
V
3
U
R400
VHE(+)
VHE(-)
WHE(+)
WHE(-)
UHE(+)
UHE(-)
R212
20K
C200
WHE(+)
WHE(-)
VHE(-)
UHE(-)
UHE(+)
VHE(+)
4
390
5
6
7
8
9
R401
10
390
11
12
NC
13
FG
14
COM
15
PG
15P(D)
C208
C207
10p
10p
1
1
1
P904
1M
DFG O DEW O DEW I­DEW I+ VCC2 RFG2 O RFG2 I­RFG2I-2 RFG2I-1
C201
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0.1u
C509
0.1u
R500
390
R501
1
8
5
6
7
D
D
D
D
D
F
F
F
F
F
G
G
G
G
G
I
I
I
I
I
+
-
-
+
+
2
1
1
U201
LB8110
R
R
R
R
R
F
F
F
F
F
G
G
G
G
G
1
1
2
1
1
I
I
I
I
I
-
-
+
+
-
2
1
2
3
2
3
8
1
9
0
390
+5V
R211
19 20 21 22 23 24 25 26 27
10u
W
U
V
FG2
GND
FG1
5V
15P(D)
HE-(GND)
HE+(VCC)
TO CAP MOTOR
HE+(VCC)
HE-(GND)
C403
1000P
C401
C400
0.1uK
0.1uK
R402
R403
4.7
4.7
13 12
U903F 74HC14
C211
0.1u
C206
2.2u
1
1
1
1
1
0
2
1
3
4
D
D
V
G
P
N
P
R
G
G
E
D
F
C
I
P
­ 9
DPG.I+
8
DPG.O
7
E.D.O3
6
E.D.O2
5
T.D.O3
4
T.D.O2
3
E.D.O1
2
E.D.I-
1
T.D.O1
S
T
R
I
.
F
G
V
D
G
C
.
1
S
C
I
E
1
-
O
L
3
3
3
3
3
6
2
3
4
5
0.01u
C503 1000P
C501
C500
0.1uK
0.1uK
R502
R503
4.7
4.7
C209
C504
1000P
C404
1000P
0.1uK
R404
R202
1K
0.1uK
R504
C402
4.7
C502
C405
1000P
WHE(-) WHE(+) VHA(-) VHA(+) UHE(-) UHE(+)
U V W
R406
R405
1
1
1/4
1/4
DFG
4.7
C204
S_SENS
DPG
R206
20K
C205
1u
R203
1K
1u
R204
47K
C210
0.01u
C505
1000P
R505
100uH
WHE(-) WHE(+) VHA(-) VHA(+) UHE(-) UHE(+)
U V W
R506
1
1
1/4
1/4
L200
DON DREV
LMF LMR
5
4
6
7
V
O
I
G
N
S
U
N
1
T
2
D
2
V
O
C
I
V
U
O
N
S
T
N
4
2
4
T
1
1
8
9
0
CMR CMF
R700
360
U401
16
GND
17
GND
18 19 20 21 22 23 24 25 26 27 28 29 30
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
E_SNSE
R205
47K
FRC BR WIN2 WIN1 VIN2 VIN1 UIN2 UIN1 RF U OUT V OUT GND GND
LB1851M
U501
GND GND FRC BR WIN2 WIN1 VIN2 VIN1 UIN2 UIN1 RF U OUT V OUT GND GND
LB1851M
FGIN+ FGIN-
ANGLE
ST.BY.
W OUT
FGIN+ FGIN-
ANGLE
ST.BY.
W OUT
FGO2 FGO1
VCC1 VCC2
FGO2 FGO1
VCC1 VCC2
1
15
GND
14
GND
13 12 11 10 9
NC
8 7 6 5 4
VS
3 2
GND
1
GND
15
GND
14
GND
13 12 11 10 9
NC
8 7 6 5 4
VS
3 2
GND
1
GND
3
O U T 1
O U T 3
1 2
+5V
C407
0.1u
R407 47K
START_S
R509 100K
+5V
C506
0.1u
R507
47K
I N 1
I N 3
C406
0.1u
+5V
END_S
+5V
2
1
U701
V C
C700
C
10u
G N
C701
D
10u
1
1
LB1836M
3
4
CMFO CMRO
VCONT
+9V
+5V
CON CREV
R508
1K
C507
1u
R510
20K
D_VS
C_VS
C508
0.1u
RB070L
ATF_DATA
U902D
U902B
74HC00
12
C M F
390uH
D400 EC10QS04
100uH
C M R
L400
L901
U903D
9 8
12
13
4
5
C703
0.1u
D_VSC_VS
TL5001CPS
R905 47K
R940
R952
47
R941
1K
C907
0.1u
74HC14
P908
4P
1K
8
47/20V
+5V
C408
R934 100K
R935 4.7K
RP-SW
ME_MP
ATF_CLK ATF_TRG
U902C
SV_PDCK
1234
G
E
N
N
D
D | S W
C922
10u/16V
10
9
SLSW2
SLSW1
S T A R T | S W
TP902
RF_E
+5V
G N D
TP901
SWP
FSYNC_P
C923
10u/16V
R936
12345678
G
C
R
N
S
E
D
|
S
S
E
D
V
T
TO SYS PCB
TP903
R953
4.7K
R954
CFG
220K
R614
27K
D904
R937
8.2K
TP904
DFG
+5V
81 82 83 84 85 86 87 88 89
47K
90 91 92 93 94 95 96 97 98 99 100
U902(7)
U902(14)
U903A
74HC14
R
S
A
S
S
E
I
C
O
C
Q
|
K
|
K
|
S
|
S
|
S
Y
S
Y
S
V
S
V
S
Y S
R938 100K
RF-IN2­RF-IN2+ +5V(A) +5V(A) GND(A) RF_IN1+ RF_IN1­RF_OUT1 SCK_EEP +5V(D) SO_EEP SI_EEP ACK-SV REQ-SV VCONT RP_SW TSB ME_MP CS_EEP FGPDCK
C908
0.1u
P907
8P
DA119K
TP905 DPG
C901
0.1u
1 2
7
8
6
5
R612
R_ERR
82K
TRIGER
18K
TP906
U602
GND
RT
DTC
SPC
R613
C918
4.7u
8
7
7
0
9
8
R
P
P
F
7
7
|
3
2 O U T 2
P
P
P 1
1
1 7
6
5
1
2
3
R960
R901
R902
R903
R904
+5V
9V 9V
Q600
OUT
VCC
7 7
E | S E N S
P 1 4
4
47K
FB
IN
C610
0.1u
7
7
6
5
S
A
|
T
S
F
E
|
N
E
S
R R
P
P
1
1
3
2
5
6
R955
1K
P906
1
2
3
4
C906
220P
C905
220P
C904
220P
7
7
7
4
3
2
A
A
A
N
N
N
1
1
1
6
5
4
UPD7814X-SAP
A T F | L
P
P
O
1
1
C
1
0
K
7
8
9
47K
47K
47K
47K
109
7 1
A N 1 3
S L S W 2
1 0
R E C
I N H I B I T
2SA1314
R619
100
R618
470
1/4
TP907
RFG
7
6
6
6
6
6
6
0
7
9
8
6
5
4
A
R
P
D
F
D
C
N
F
A
E
S
F
F
1
|
R
W
Y
G
G
2
E
I
N
/
N
C
T
P
|
V
Y
D
P
C K
U901
R E C
S
G
/
L
N
S
C
C
L
L
S
D
A
M
M
M
M
W
F
F
R
R
F
1
D
E
1
1
1
1
1
1
1
1
4
5
3
2
6
7
12345678910
A
A
P
T
T
A
F
F
R
|
|
I
T
D
T
R
A
Y
G
T A
TO SYS PCB
S | R E E L
T A P E 1
6 3
T | R E E L
T A P E 2
1 8
F S Y N C | P
6
6
6
0
1
2
C
R
S
F
|
G
S V
T
T
H
H
I
I
C
C
K
K
2
1
1
2
2
9
0
1
ATF_CLK
S V | P D C K
5
5
5
5
5
8
7
5
9
6
S
S
D
S
P
I
C
O
P
3
|
|
3
K
G
S
|
S Y
S
Y
Y
S
S
S
R
M
M
M
M
R
D
D
D
D
E
4
3
2
1
V
2
2
2
2
2
2
3
4
5
6
A
S
T
W
F
P
|
|
C
P
L
B
K
G N D
D
T E S T 2
R O N
5
5
4
3
T E S T 1
C R E V
2
2
7
8
D600
EC10QS04
5V
5 2
S W P
MODE(VPP)
C O N
2 9
9 . 4 0 8 M H z
L600
150uH
R916 22K R915 22K
R910 4.7K
R911 47K R912 R913 47K
R914 4.7K
R917 R918 4.7K R919 47K
R920
5 1
P T 0 1 0
P87 P85 P84 P83
R_ERR
SEL2 SEL1
RESET
9.408MHZ
9.408MHZ GND(D)
XT2
XT1/P86
+5V(D)
C_ERR D_ERR
SOL
SE_LED
DON D R E V
3 0
U903E 74HC14
11 10
3 4
U903B
74HC14
4.7K
C612
47/20V
(OS)
47K
47K
+5V
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
C909
0.1u
C601
0.1u
FSYNC_P
SWP
R907
10K
C902
0.1u
+5V +5V
FSYNC_P
U903(14)
U903(7)
C600
0.1u +5V
C604
U601
LB1851M
C605
0.1uK
R606
R605
R604
SOL
SE_LED
W OUT
V OUT
U OUT
UHE+
UHE-
VHE+
VHE-
WHE+
WHE-
DTA114EK
D902
DA119K
4.7
4.7
4.7
R944
+5V
Q105
5
3
4
6
1
2
V
V
G
G
W
S
C
N
N
D
C
D
O
2
U T
U
V
G
G
O
O
R
N
N
U
U
F
D
D
T
T
2
2
2
2
2
3
6
5
7
8
0
9
0.1uK
C603
0.1uK
C606 1000P
100K
R602
R603
1K
C602
1u
R949
+5V
68
TP908
S-REEL
S | R E E L
C609
0.1u
U OUT
W OUT
V OUT
+5V
+5V
E
TP909
N
T-REEL
D | S
82
R945
TAPE2
TAPE1
Q104
DTA114EK
68
+5V
R942
C911 10u
TO SENSOR L
P903
7
THICK1
6
THICK2
5
CASSETTE
4
3
2
1
7P(D)
TO REEL MOTOR
P902
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15P(U)
R947 100K
TO SENSOR R
P901
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
15P(D)
END_S
S.R.LED
S_REEL
GND
FG2
GND
FG1
5V
U OUT
W OUT
V OUT
WHE+
HE-(GND)
WHE-
VHE-
UHE-
HE(VCC)
UHE+
VHE+
39K
R946 10K
C912
0.1u
GND
T_REEL
T.R.LED
START-_S
DEW
T.E.LED
MD1
MD2
MD3
MD4
SOL
NOR/HG
REC_SAFE
MP/ME
GND
R948
R950
68
R609
390
R610
390
DEW
68
R943
47
Page 5
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B
A
C
D
E
» SCHEMATIC DIAGRAM DA-78HR SERVO PCB (2/2)
（Page19/23）
Digital Multitrack Recorder DA-78HR
2 nd Issue; July 2000
P3 1 2 3 4 5
DTC124EK
Q3
DTC124EK
Q4
5P
TO MAIN PCB
EQOUT_A GND EQOUT_B GND GND
DTC124EK
TP5
RF
VIN1 SW1 VIN2 NC
C138
0.1u
C139
0.01u
U101
CXA1814N
AVcc
U4NJM2233BM
8
GND
7
VOUT
6
V+
5
NC
C66
0.1
C140
0.01u
29
30
SPIN
Vcc1PBIN2NC3TEST4BPF16 OUT5BPF46 OUT
C141 22u/6.3V
26
28
27
ENV OUT
COMP REF
MOD RATIO
1 2 3 4
L2 47uH
C65
47/6.3V
Q7
R123
2.2K
R124
25
24
23
CLOG
SP/LP REF
CLOG REF
GND
7
6
8
R140 470
R141 470
1K
20
21
22
CS
SIN
SCLK
PB SP/LP
REF PILOT
FH IN103FH-FH
3FH IN
9
11
C131
0.1u
C130
0.1u
C915 150P
19
12
R928 33K
R929 13K
18
17
STBY
VREF
CLOCK IN
ATF ERROR
NF
RPPB MODE
13
14
C137
0.01u
R147 100k
3
1
3
1
DVcc
R148
2.2k
16
REC PILOT
PILOT ACT
15
U102 NJM2233BM
62
8
62
8
U103 NJM2233BM
SWP
R930
R931 240
C142
0.1u
Q902 2SC2412K
R144 10k
R156 33k
R146 10k
C132
0.022u
C133
0.022u
2SC2412K
C145
0.01u
Q903
R932 47K
R151
2.2k
R145 10k
C136
0.1u
AVcc
DVcc
R149 10k
R933
8.2K
C916 2200P
23
PGND
24
TD0
25
GND
26
VCC
27
PGND
28
PGND
29
PGND
30
PGND
31
PGND
32
PGND
33
RESET
R150 10k
84
U105A
3
+
2
­NJM2119M
C119
0.1u
22
PGND
34
1
C921 1u
C917 1000P
16
18
17
GND
GCA321GCA220GCA119GCA0
U100 XC9536-15-VQ44
VCC35REFOUT
36
C135 0.1u
U104 1 2 3 4
C120
10u/16V
AVcc
15
D914D8
VCC
GCA_SEL
COM INH Vee Vss
TC4W53FU
RF_E
SWP
ME_MP
DVcc
12
13
ME
11
TCK
10
TMS
9
TDI
8
SEL2
7
SEL1
6
PGND
5
TSA
4
GND
3
CLKOUT
2
PGND
1
XIN
R154 10k
C144
0.01u
8 7 6 5
A
R142 10k
R120 10K
C117
0.1u
C134
0.01u
C118 10u/16V
VDD
PGND44CS43SOUT42PGND41SCK40PGND39PGND38PGND37REFOUT2
ch0 ch1
R121 10K
R122 10K
R125 47
R155 680
R153
2.2k
U105B
5
+
6
­NJM2119M
L101 100uH
L102 100uH
C143
0.1u
R152 10k
SEL2
SEL1
ATF_CLK
ATF_DATA
R143 15k
7
ATF_TRG
ATF_ERR
PR_SW
+5V
+5V
GND D
GND A
1K
5 7 4
5 7 4
27
SNDPCA
40
C60
0.1
U3
A-EN A1IN A2IN B1IN B2IN B-EN VEE
CXA1077M
25
26
24
RECINA
RECOTA
PVCCPC
HA12133MP
AVCC42RECOTB
SNDINB
43
41
R23 10K
23
VCAOTA
U1
RECINB
VCAOTB
44
C19
0.01
L5
47uH
VCC
A-EN A1OUT A2OUT B1OUT B2OUT
B-EN
22
RECLVA
RECLVB
1
C59
47/6.3V
20
21
PLTLVA
PLTLVB
2
3
14 13 12 11 10 9 8
19
DVCC
RFOUT4ATFOUT
5
SWH18TEST
PLAREA
EQ2OUT
EQ2GAN
BIASPC1 EQ1OPT
EQ1INP
TP1 OUT A
R9 220
RECPB
RDATA
DGND
EQ2INN
EQ2INP
AGND
EQ1INN
C56
0.1
C55
47/6.3V
390P C31
2SC2412K
C33
47P
R15
2.2K
R13
2.2K
Q1
R21 560
TP6 G_RF
L3 47uH
R51
R19
2.2K(B)
470
(ME)
R81 NM
R53
2.2K(B)
R25 470
R27
10K
C52
0.1
C51
47/6.3V
DTC124EK
(MP)
Q5
R83 NM
TO PSY PCB
P2
1
+5V
2
GND
2P
100P
C64
0.01
C25
0.1
C39
0.01
C41
TP3
EQ OUT A
C37
0.01
C35
0.01
R17 1K
C29
0.01
C21 39P
C63 47/6.3V
L4
47uH
17 16 15 14 13 12
11 10 9 8 7 6
C27
0.01
C23
0.01
R11 220
C43
3300P
C9 3300P
C5 3300P
C7
C15 3300P
C17 3300P
1/50V
28 29 30 31 32 33
34 35 36 37 38 39
SNDINA FSTOTA RGNDA PBSWA FSTINA BIASPC2
PBCNT FSTINB PBSWB RGNDB FSTOTP SNDINB
R5
4.7K
C47
4700P
R7
470
C49
4700P
4.7K
R3
C11
47/6.3V
C13 3300P
C1
C45
R1
TO DRUM
P_CHA_F P_CHA_S
P_CHB_F P_CHB_S
GND GND
GND
GND
0.1 NM
P1
1 2 3 4 5 6 7 8
8P
12P
C2
0.1
C3
0.1
C4
R2
0.1
NM
1 2 3 4 5 6 7
C46 12P
27
40
C62
0.1
25
26
RECOTA
PVCCPC
SNDPCA
HA12133MP
AVCC42RECOTB
SNDINB
41
R24 10K
23
24
RECINA
U2
RECINB
43
44
22
VCAOTA
VCAOTB
1
C20
0.01
L6
47uH
C61 47/6.3V
21
20
PLTLVA
RECLVA
PLTLVB
RECLVB
3
2
19
DVCC
RFOUT4ATFOUT
5
SWH18TEST
PLAREA
EQ2OUT
EQ2GAN
BIASPC1 EQ1OPT
EQ1INP
TP2
OUT B
R10 220
RECPB
RDATA
DGND
EQ2INN
EQ2INP
AGND
EQ1INN
C58
0.1
17 16 15 14 13 12
11 10 9 8
C42
0.01
7 6
C28
0.01
C24
C26
0.01 100P
R12
C22
220
39P
C40
0.01
TP4
EQ OUT B
C38
0.01
C57
47/6.3V
C36
0.01
R18 1K
C30
0.01
2.2K
C32 390P
R14
C34 47P
Q2 2SC2412K
R16
2.2K
R22 560
R52
2.2K(B)
R20
470
(ME)
R82 NM
R54
2.2K(B)
R26 470
(MP)
DTC124EK
Q6
R84 NM
C44
3300P
C10 3300P
C16 3300P
C6 3300P
C8
C18 3300P
1/50V
28 29 30 31 32 33
34 35 36 37 38 39
SNDINA FSTOTA RGNDA PBSWA FSTINA BIASPC2
PBCNT FSTINB PBSWB RGNDB FSTOTP SNDINB
R6
4.7K
C48
4700P
R8
470 C50
4700P
R4
4.7K
C12
47/6.3V
C14 3300P
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