Tascam DM-24, Service Manual

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TASCAM DM-24
MIC AMP 1ch
MIC AMP 2ch
MIC AMP 4ch
MIC AMP 3ch
MIC AMP 7ch
MIC AMP 6ch
MIC AMP 8ch
MIC AMP 5ch
MIC AMP 14ch
MIC AMP 11ch
MIC AMP 10ch
MIC AMP 12ch
MIC AMP 15ch
MIC AMP 13ch
MIC AMP 9ch
MIC AMP 16ch
MAIN PCB
ADC4 (U151)
ADC1 (U148)
ADC5 (U152)
ADC3 (U150)
ADC7 (U154)
ADC2 (U149)
ADC6 (U153)
INPUT PCB
TDIF PCB
OPT IN
(U601)
OPT OUT
(U602)
P614
P101
P102
P103
P104
P26
P36
P27
P37
P23
MOTHER PCB
P20
15
4,5
15
4,5
15
4,5
15
4,5
15
4,5
15
4,5
15
4,5
25,24
25,24
25,24
25,24
25,24
25,24
25,24
ADAT
Receive
(U120)
IN 3
IN 1
IN 4
IN 2
IN 7
IN 8
IN 6
IN 5
IN 11
IN 12
IN 10
IN 9
IN 13
IN 14
ADAT
Transmitter
(U121)
OUT 8
OUT 6
OUT 7
OUT 3
OUT 4
OUT 2
OUT 1
OUT 14
OUT 13
OUT 10
OUT 11
OUT 9
OUT 5
OUT 12
J3
P17 P611
TDIF 1 (P601)
SLOT1
P21 J4
74LV541
(U48)
19
11
12
13
14
6
13
12
11
10
74LV04 (U165)
6 5
16
18
12
7
17
9
8
6
4
5
3
11
14
13
15
2
15
4,5
25,24
ADC8 (U155)
2
4
3
7 13
5
18
15
74LV541
(U49)
14
16
17
6
OUT 2
8
6
OUT 1
TDIF 2 (P602)
IN 2
14
OUT 4
16
2
18
12
OUT 4
OUT 3
8
OUT 4
IN 1
4
14
IN 2
OUT 1
OUT 2
6
2
IN 2
74LVC240
(U55)
OUT 3
16
12
P18
TDIF 3 (P603)
IN 3
18
OUT 2
IN 4
4
IN 3
74LVC240
(U56)
74LVC240
(U57)
IN 3
8
6
IN 1
14
2
OUT 1
16
12
IN 4
18
IN 1
P612
OUT 3
IN 4
4
5
15
15
19
12
16
13
4
18
125
MPJ4
28
28
DAC3
25
P33
7,8
5
16
16
17
19
4
16
5
5
4
MPJ2
30,29
27
P32
74HC540 (U59)
2
3
3
124
9
125
3
IOX 3 (U73)
MPJ0
CODEC1
(U156)
27
4,5
5
15
17
74LV541 (U66)
5
5
7
14
123
6
32,31
8
ADC
P31
1,2
9
2
74LV541 (U63)
16
15
5
2
4
10
MPJ5
27
P8
3 1 7
12
74HC540 (U58)
18
74HC540 (U60)
3
12
5
130
MPJ3
30,29
6
8
3
6
13
17
3
10
11
6
133
MPJ1
14
DAC1
8
7
32,31
74LV74
(U141)
P5
1
4
14
18
4
7
3
74LV541 (U67)
16
11
3
IOX 1 (U71)
IOX 2 (U72)
9
2
DAC1
28
6
7
4
16
16
15
18
10
131
133
14
7
23
26
30 2
15
4
9
132
3
11 13
6
32
2
4
2
1
6
13
4
18
18
9
MPJ6
133
123
124
125
3
DAC3
9
26
9
6
3
4
6
5
1
17
6
132
126
132
13
9
24
DAC2
7
5
17
18
74LV541 (U65)
4
74LV541 (U64)
4
74LV157 (U86)
5
131
DAC2
DAC3
9
5
74LV139
(U26
1/2)
11
10
19
2
74LV139
(U68
1/2)
15
19
7
131
23
ADC
24
7
DAC2
3
5
19
7
14
19
2
74LV541 (U69)
2
15
4
130
130
11
12
126
12
ADC
26
DAC1
24
3
1
19
16
15
5
15
6
5
4
3
10
124
123
23
1
1
74LV541 (U62)
16
74LV139
(U68
1/2)
17
5
6
1
126
25
25
10,11
SLOT1 IN 3
SLOT1 IN 14
SLOT1 IN 2
SLOT1 IN 7
SLOT1 IN 1
SLOT1 IN 8
SLOT1 IN 4
SLOT1 IN 6
SLOT1 IN 11
SLOT1 IN 12
SLOT1 IN 10
SLOT1 IN 9
SLOT1 IN 13
SLOT2 IN 8
SLOT2 IN 6
SLOT2 IN 7
SLOT2 IN 3
SLOT2 IN 10
SLOT2 IN 4
SLOT2 IN 11
SLOT2 IN 2
SLOT2 IN 12
SLOT2 IN 1
SLOT2 IN 9
SLOT2 IN 14
SLOT2 IN 5
SLOT2 IN 13
SLOT1 IN 5
OUT 5
OUT 12
SLOT2
IN 3
IN 14
OUT 6
IN 2
OUT 7
IN 7
IN 1
OUT 3
OUT 8
IN 8
IN 4
IN 6
OUT 4
IN 5
OUT 2
IN 11
OUT 1
IN 12
OUT 14
IN 10
OUT 13
IN 9
OUT 10
IN 13
OUT 11
OUT 9
TDIF 3 IN 1
TDIF 3 IN 4
TDIF 3 IN 2
TDIF 3 IN 3
TDIF 1 IN 2
TDIF 1 IN 1
TDIF 1 IN 4
TDIF 1 IN 3
TDIF 2 IN 2
TDIF 2 IN 1
TDIF 2 IN 4
TDIF 2 IN 3
ADAT IN 1
ADAT IN 2
ADAT IN 3
ADAT IN 4
ADC 1
ADC 2
ADC 3
ADC 4
ADC 5
ADC 6
ADC 7
ADC 8
C.ROOM PCB
P101
9
11
P106
MASTER PCB
P999
P105
P106
STUDIO PCB
STUDIO OUT L
STUDIO OUT R
A.RTN 1 (H&C)
A.RTN 2 (H&C)
A.RTN 3 (H&C)
A.RTN 4 (H&C)
A.SEND 1
A.SEND 2
A.SEND 3
A.SEND 4
STEREO OUT R
STEREO OUT L
C.ROOM OUT L
C.ROOM OUT R
METER IN L
METER IN R
(reserve)
OUT 3
IN 8
IN 7
IN 4
IN 6
OUT 4
IN 5
IN 2
OUT 1
OUT 6
IN 1
OUT 8
OUT 5
IN 3
OUT 2
OUT 7
OUT 1
OUT 8
IN 8
IN 5
OUT 5
OUT 3
IN 7
OUT 2
IN 1
IN 2
OUT 4
IN 6
IN 4
OUT 6
OUT 7
IN 3
OUT 1
OUT 8
IN 8
IN 5
OUT 5
OUT 3
IN 7
OUT 2
IN 1
IN 2
OUT 4
IN 6
IN 4
OUT 6
OUT 7
IN 3
IOX1 OUT1
IOX1 OUT2
IOX1 OUT3
IOX1 OUT4
IOX1 OUT5
IOX1 OUT6
IOX1 OUT7
IOX1 OUT8
IOX2 OUT1
IOX2 OUT2
IOX2 OUT3
IOX2 OUT4
IOX2 OUT6
IOX2 OUT5
IOX1 OUT7
IOX1 OUT8
IOX1 OUT4
IOX1 OUT1
IOX1 OUT6
IOX1 OUT5
IOX1 OUT3
IOX1 OUT2
IOX2 OUT4
IOX2 OUT2
IOX2 OUT3
IOX2 OUT1
IOX2 OUT1
IOX2 OUT3
IOX2 OUT4
IOX2 OUT2
DSP4
(U88)
DR1B
17
PD0
PD23
PA0
PA3
PA3
PD0
PD23
PA0
PA3
PD0
PD23
PA0
74LV245
(U74)
DSP 1
(U77)
DATA0 - 23
PCS1*
ADDR4
59
59
59
PCS1*
PCS1*
74LV245
(U75)
74LV245
(U76)
DSP 1 DATA BUSS
DSP 1 ADRESS BUSS IOX DATA BUSS
10
15
ADRESS
DECODE
PLD for IOX
(U160)
5
6
2
11
RD/WR
TIMING
9
ADDR5
RD*
WR*
PWR*
PWR*
PWR*
PCS2
PCS2
PCS2
7
63
60
60
60
58
58
58
512Fs
19
ADDR0-3
3
13
6
11
10
74VHC153
(U166)
7 5
9
CODEC2
(U157)
CODEC3
(U158)
PAGE 3
PAGE 4
PAGE 5
PAGE 6
PAGE 7
PAGE 11
PAGE 12
PAGE 13
Contents of the circuit schema
PAGE 1 MAIN CPU
PAGE 2 PANEL CPU
PAGE 3 BUFFER for the SLOT
PAGE 4 INPUT SELECTOR for IOXs
PAGE 5 IOXs
PAGE 6 DSP1 & DSP2
PAGE 7 DSP3 & DSP4 PAGE 8 DSP5, DSP6 & SDRAMs
PAGE 9 DSP7 (for EFFECTOR)
PAGE 10 DSP8 (RESERVE)
PAGE 11 PLL & DIGITAL I/O
PAGE 12 ADCs for 1-16 inputs
PAGE 13 CODECs & ADC for TBM
MAIN PCB IOX BLOCK DIAGRAM