Tascam DM-24 Service Manual page 42

MAIN PCB CLOCK CIRCUIT BLOCK DIAGRAM
(MAIN PCB CIRCUIT DIAGRAM page 11)
(page 4) WORD IN (P18-16pin)
SLOT-1 LRCK (P22-11pin)
(page 3)
SLOT-2 LRCK (P22-12pin)
ADAT IN LRCK (U120-8pin)
D.IN 1 LRCK (U143-17pin)
D.IN 2 LRCK (U144-17pin)
TDIF-A LRCK (P17-10pin)
(page 4)
TDIF-B LRCK (P17-30pin)
W.SYNK
R240
512Fs
P3-1pin
256Fs
R230
128Fs
U127-9pin
64Fs
P3-2pin
64Fs
P3-2pin
(32Fs)
(16Fs)
(8Fs)
(4Fs)
2Fs(D=75%)
U127-2pin
2Fs
U131-3pin
2Fs
U131-3pin
Fs
P3-3pin
WORD
U126-2pin
Note: port N
bit4 = H
bit5 = L
bit6 = L
bit7 = L
U125 XC9536XL (PLD for CLK)
43
44
22
48
49
50
56
57
2
MPN0
5
MPN1
6
MPN2
U132
X1
COUNTER
3
16
11 10 9 8 7056kHz
1/147
or 1/160
1 2 3 4 64
MPH7
ONLY MAIN PCB Ver.2
60
MPL1
61
MPL2
62
MPL3
63
MPL4
7
MPN3
17
COUNTER 15
1/512
PLL CMP
19
512Fs
27
256Fs
COUNTER 33
1/2
128Fs
COUNTER
35
1/2
64Fs
COUNTER 36
1/2
COUNTER
1/2
CLK Q
D-FF
W.SYNK
COUNTER 25
DATA Q
1/2
COUNTER
1/2
COUNTER
2Fs(D=75%)
1/2 42
2Fs
COUNTER 38
1/2
Fs
COUNTER 39
1/2
CLK Q
D-FF
DATA Q
WORD
24
10
11
PLL SIG
20
8
9
42
U147
3 COUNTER 5
U11-104pin (page 1)
1/2
U135
2 6 3
U133 U133
13 1 2 3
U136 PLL
12 8 14 LPF VCO
(page 5)
U160
43
44
48
19
56
57
60
U147
11
U129
9 11
8 12
U127
7 13
9 11
6 14
5 15
7 13
4 16
8 12 3 17
2 18
U128
2 18
3 17
4 16
5 15
6 14
2 18
7 13
3 17
8 12
9 11
4 16
U130
5 15
2
3 4
5
6 7
6 14 11
10 9
14
U156-5pin, U157-5pin,
13 12
U158-5pin, U159-15pin,
U166-14pin
1
U126
2 18
U131
U126
2
MPN6
3 17 3 4
4 16 5
MPN7
5 15 6 7
6 14 11
MPN4
7 13 10 9
8 12 14
MPN5
9 11 13 12
1
MPG6
(page 1)
MPL0
TASCAM DM-24
U133
4 5 6
BUFFER
U143-21pin, U144-21pin
U52-5pin (page 3)
P3-1pin
U73-21pin
U72-21pin (page 5)
U71-21pin
32Fs
COUNTER 9
U11-43pin
1/2
(page 1)
U156-39pin, U157-39pin,
U158-39pin, U159-11pin
(page 13)
U152-17pin, U153-17pin,
U154-17pin, U155-17pin
(page 12)
U148-17pin, U149-17pin,
U150-17pin, U151-17pin
(page 12)
P3-2pin
U88-15pin (page 7)
U152-14pin, U153-14pin,
U154-14pin, U155-14pin
(page 12)
U148-14pin, U149-14pin,
U150-14pin, U151-14pin
(page 12)
U156-4pin, U157-4pin,
U158-4pin, U159-12pin
(page 13)
U52-4pin (page 3)
U141-11pin
(page 13)
U77-206pin, U78-206pin
(page 6)
U87-206pin, U88-206pin
(page 7)
U94-206pin, U95-206pin
(page 8)
U106-206pin, U113-206pin
(page 9,10)
U71-27pin
U72-27pin (page 5)
U73-27pin
U11-87pin (page 1)
P3-3pin
U148-13pin, U149-13pin,
U150-13pin, U151-13pin
(page 12)
U152-13pin, U153-13pin,
U154-13pin, U155-13pin
(page 12)
(page 13)
U88-13pin (page 7)
P18-17pin
(page 4)
U87-13pin, U87-18pin,
U88-18pin
(page 7)
U143-12pin, U144-12pin,
U145-2pin, U145-11pin
U87-15pin, U87-19pin,
U88-19pin
(page 7)
U143-13pin, U144-13pin,
U145-4pin, U145-13pin