Tascam DM-24 Service Manual page 43

MAIN PCB IOX BLOCK DIAGRAM
MOTHER PCB
P20
J3
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 8
IN 9
IN 10
IN 11
IN 12
IN 13
IN 14
SLOT1
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
OUT 8
OUT 9
OUT 10
OUT 11
OUT 12
OUT 13
OUT 14
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 8
IN 9
IN 10
IN 11
IN 12
IN 13
IN 14
SLOT2
OUT 1
J4 P21
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
OUT 8
OUT 9
OUT 10
OUT 11
OUT 12
OUT 13
OUT 14
P611 P17
TDIF 1 (P601)
IN 1
IN 2
IN 3
IN 4
OUT 1
OUT 2
OUT 3
OUT 4
TDIF 2 (P602)
IN 1
IN 2
IN 3
IN 4
OUT 1
OUT 2
OUT 3
OUT 4
TDIF 3 (P603)
P612 P18
IN 1
IN 2
IN 3
IN 4
OUT 1
OUT 2
OUT 3
OUT 4
OPT IN
P614 P23 74LV04 (U165)
(U601)
5 6
OPT OUT
(U602)
TDIF PCB
PAGE 11
MIC AMP 1ch
P101 P26
PAGE 12
MIC AMP 2ch
MIC AMP 3ch
MIC AMP 4ch
MIC AMP 5ch
P102 P36
MIC AMP 6ch
MIC AMP 7ch
MIC AMP 8ch
MIC AMP 9ch
P103 P27
MIC AMP 10ch
MIC AMP 11ch
MIC AMP 12ch
MIC AMP 13ch
P104 P37
MIC AMP 14ch
MIC AMP 15ch
MIC AMP 16ch
INPUT PCB
PAGE 3
18 2 IOX1 OUT1
74LV541
17 3 IOX1 OUT2
(U48)
16 4 IOX1 OUT3
15 5 IOX1 OUT4
14 6 IOX1 OUT5
13 7 IOX1 OUT6
12 8 IOX1 OUT7
11 9 IOX1 OUT8
18 2 IOX2 OUT1
74LV541
17 3 IOX2 OUT2
(U49)
16 4 IOX2 OUT3
15 5 IOX2 OUT4
14 6 IOX2 OUT5
13 7 IOX2 OUT6
18 2 IOX1 OUT1
74LVC240
16 4 IOX1 OUT2
(U55)
14 6 IOX1 OUT3
12 8 IOX1 OUT4
18 2 IOX1 OUT5
74LVC240
16 4 IOX1 OUT6
14 (U56) 6 IOX1 OUT7
12 8 IOX1 OUT8
18 2 IOX2 OUT1
74LVC240
16 4 IOX2 OUT2
(U57)
14 6 IOX2 OUT3
12 8 IOX2 OUT4
10
ADAT
6 11
Receive 12
(U120) 13
11
IOX2 OUT1
ADAT
19 12 IOX2 OUT2
Transmitter 13
IOX2 OUT3
(U121) 14 IOX2 OUT4
4,5
ADC1 (U148)
15
25,24
4,5
ADC2 (U149) 15
25,24
4,5
ADC3 (U150)
15
25,24
4,5
ADC4 (U151) 15
25,24
4,5
ADC5 (U152)
15
25,24
4,5
ADC6 (U153) 15
25,24
4,5
ADC7 (U154)
15
25,24
4,5
ADC8 (U155) 15
25,24
PAGE 4
74HC540 (U58)
TDIF 1 IN 1
4 16
TDIF 1 IN 2
5 15
TDIF 1 IN 3
6 14
TDIF 1 IN 4
7 13
1
74LV541 (U62)
SLOT1 IN 1 2
18
SLOT1 IN 2 3
17
SLOT1 IN 3 4
16
SLOT1 IN 4 5 15
19
74LV541 (U65)
SLOT2 IN 1
2 18 12
SLOT2 IN 2
3 1 7 11
74LV139
SLOT2 IN 3
4 16 10 (U26
1/2)
SLOT2 IN 4 5 15
9
19 14 13
74HC540 (U59) MPJ0 MPJ1
TDIF 2 IN 1
4 16
TDIF 2 IN 2
5 15
TDIF 2 IN 3
6 14
TDIF 2 IN 4
7 13
1
74LV541 (U63)
SLOT1 IN 5 2
18
SLOT1 IN 6 3
17
SLOT1 IN 7 4
16
SLOT1 IN 8 5
15
19
74LV541 (U66)
SLOT2 IN 5
2 18 4
SLOT2 IN 6
3 17 5
74LV139
SLOT2 IN 7
4 16 6
(U68
1/2)
SLOT2 IN 8
5 15 7
2 3
19
74HC540 (U60) MPJ2 MPJ3
TDIF 3 IN 1 4
16
TDIF 3 IN 2
5
15
TDIF 3 IN 3
6 14
TDIF 3 IN 4
7 13
1
74LV541 (U64)
SLOT1 IN 9 2 18
SLOT1 IN 10 3 17
SLOT1 IN 11 4
16
SLOT1 IN 12 5
15
19
74LV541 (U67)
SLOT2 IN 9 2 18 12
SLOT2 IN 10 3 17 11
74LV139
SLOT2 IN 11
4 16 10
(U68
1/2)
SLOT2 IN 12
5 15 9
14 13
19
74LV541 (U69) MPJ4 MPJ5
ADAT IN 1 2 18
ADAT IN 2 3 17
ADAT IN 3
4 16
ADAT IN 4
5 15
19
74LV157 (U86)
SLOT1 IN 13 2
4
SLOT2 IN 13 3
SLOT1 IN 14 5
7
SLOT2 IN 14
6
1
MPJ6
43
Contents of the circuit schema
PAGE 1 MAIN CPU PAGE 8 DSP5, DSP6 & SDRAMs
PAGE 2 PANEL CPU PAGE 9 DSP7 (for EFFECTOR)
PAGE 3 BUFFER for the SLOT PAGE 10 DSP8 (RESERVE)
PAGE 4 INPUT SELECTOR for IOXs PAGE 11 PLL & DIGITAL I/O
PAGE 5 IOXs PAGE 12 ADCs for 1-16 inputs
PAGE 6 DSP1 & DSP2 PAGE 13 CODECs & ADC for TBM
PAGE 7 DSP3 & DSP4
MAIN PCB
PAGE 5
74LV245
(U74)
74LV245
(U75)
IOX 1 (U71)
3
IN 1
PD0
4
IN 2
5 74LV245
IN 3
6 (U76)
IN 4
PD23
9
IN 5
PA0
10
IN 6
11
IN 7
12
IN 8
PA3
123 59
OUT 1 PCS1*
124 DATA0 - 23
60
OUT 2 PCS2
125 58
OUT 3 PWR*
126
OUT 4
DSP 1
130 (U77)
OUT 5
131
OUT 6
132
OUT 7 PAGE 6
133
OUT 8
IOX 2 (U72)
3
IN 1
PD0
4
IN 2
5
IN 3
6
IN 4
PD23
9
IN 5
PA0
10 PLD for IOX
IN 6
11 (U160)
IN 7
12
IN 8
PA3 10
5
ADRESS
123 59 6
DECODE
OUT 1 PCS1*
124 15
60 2
OUT 2 PCS2
125 58
OUT 3 PWR*
126
OUT 4
63
9
130 RD/WR
OUT 5 TIMING
131 7 11
OUT 6
132
OUT 7
133
OUT 8
19
512Fs
IOX 3 (U73)
PD0
ADC 1 3
IN 1
ADC 2 4
IN 2
ADC 3 5
IN 3
PD23
ADC 4 6
IN 4
PA0
ADC 5 9
IN 5
10
ADC 6
IN 6
ADC 7 11
IN 7
ADC 8 12 PA3
IN 8
59
PCS1*
123
60
OUT 1 PCS2
124 58
OUT 2
PWR*
125
OUT 3
126
OUT 4
P5 P106
130 1
OUT 5 STUDIO OUT L
131 3
STUDIO OUT R
OUT 6
132
OUT 7
133
STUDIO PCB
OUT 8
P31 P105
PAGE 13
9 30,29 1,2
A.RTN 1 (H&C)
ADC
32,31 4,5
A.RTN 2 (H&C)
CODEC1
7,8
A.RTN 3 (H&C)
10,11
(U156) A.RTN 4 (H&C)
6
27
DAC1
28
7 25
DAC2 P32 P106
26
8 23 1
A.SEND 1
DAC3
24 3
A.SEND 2
5
A.SEND 3
7
A.SEND 4
9 30,29
ADC P999
32,31
CODEC2
9
STEREO OUT L
11
(U157) STEREO OUT R
6
3 27
DAC1
5 7 28
MASTER PCB
7 25
6 74VHC153
DAC2
10 26
(U166)
8 23
11 9
DAC3
13 24
P33 P101
1
C.ROOM OUT L
3
C.ROOM OUT R
74LV74
9 2 9 30 5
METER IN L
ADC
(U141) 32 6
METER IN R
CODEC3
(U158) C.ROOM PCB
17
6 27
DR1B DAC1
28
7 25
DSP4
DAC2
26
(U88)
8 23 P8
DAC3
24
PAGE 7
(reserve)
TASCAM DM-24