Tascam 302MKII Service Manual page 30

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302
SCHEMATIC DIAGRAM
1 2
FRONT PCB
REC LEVEL 1 REC BALANCE 1
TO MAIN PCB P101, P301
R591
J510
3 50K(A)
to LEVEL VR Rch1
A 1 R592 2
18K 1
Rch1 from LEVEL VR 2 2
GND 3 1 2 3
R593
18K
to LEVEL VR Lch1 4 3
Lch1 from LEVEL VR
5
to LEVEL VR Rch2
6
R596
Rch2 from LEVEL VR 7 3
50K(A)
R597
GND 8 1
18K
R595
2
100K(W)
to LEVEL VR Lch2 9 1
R598 3
Lch2 from LEVEL VR
10
18K
10P-SAN
REC LEVEL 2 REC BALANCE 2
CONTROL PCB
TO MAIN PCB P503
J500
B
AC 1
AC 2
-20V 3
+5V
4
+5V
+5V 5
GND 6
GND
GND 7
POWER DOWN 8
8P-SAN
R500 R522
51K 10K
R502 240K
R535 10K
6
7
5
U503B
BA10393
R501 R801
J501
22K 33K
1 1
2 2
3
3
4 4
C
5 5
R509
56K
R507
22K
R508
R506
5.6K 33K
J502
DIR 1
1
REC(REV) 2 2
R520
RMLS6-103
COMMON 3 3
CASS 4 4
CrO2 5 5
REC(FWD) 6
6
METAL 7 7
7P-SAN
MECHA I
R510 R524
51K 10K
R512 240K
R537 10K
D 6
7
5
U504B
BA10393
R511 R803
22K 33K
J503
1 1
2 2
3 3
4 4
5
5
R519
56K
5P-SAN
R517
22K
R516 R518
5.6K 33K
DIR 1 1
REC(REV) 2
2
R521
COMMON 3 3
RMLS6-103
CASS 4 4
E
CrO2 5 5
REC(FWD) 6 6
METAL
7 7
J504
7P-SAN
MECHA II
（Page 5/7）
II
MK
FRONT PCB, CONTROL PCB, KEY 1 PCB, KEY 2 PCB
3
S512
2 OFF
FL500 FL BJ-364GNK
1 3 B
4 C
TO MAIN PCB P505,P506
R590 DOLBY NR 1
J509 SSSF013
100K(W)
B/C/OFF 1 1 1
4 R594
SPDCOM 1 2 10K(B)
3
SPDVARC 1 3 PITCH CONT 1
SPDVFIX 1
4 S513
2 OFF
B/C/OFF 2 5
1 3
B
SPDCOM 2 6
4 C
SPDVARC 2 7
DOLBY NR 2
SSSF013
SPDVFIX 2 8
1
4
R599
8P-SAN
3
10K(B)
PITCH CONT 2
POWER DOWN
R503
51K
R523
10K
REEL S1
R505 180K
R536 10K
2
1 REEL T1
3
U503A
BA10393 R528
R504 R802 3K
22K 33K
2
1 END1
3
U500A
BA10393
C503
1/50
DIR1
REC B1
TAPE1
Cr1
REC A1
METAL1
R513 R525
51K 10K
REEL S2
R515 240K
R538 10K
2
1 REEL T2
3
U504A
BA10393
R527
R514 R804 3K
22K 33K
6
7 END2
5
U500B
BA10393
C507
1/50
DIR2
REC B2
TAPE2
Cr2
REC A2
METAL2
4 5
S505
R540 S500 R550
4.7K SKHHDA 4.7K SKHVBE
CLEAR2
HI DUB
R541 R551
S501 S506
560 560
SKHVBE SKHVBE
RTZ2
R542 R552 DUB
S502
750 750 S507
SKHVBE
SKHVBE
CPS
SYNC REV
R543 R553
S503 S508
1K 1K
SKHVBE
SKHVBE
DUAL REC
RTZ1
R544 R554
S509-A
S504
1.3K 1.3K
SSSF023
SKHHDA 2
R555 3 1
CLEAR1
2K
4
REV MODE
R565
R566 47K R564
47K 47K
R567
47K
81
A20
82
A19
A6 83
A18
A7
84
A17
A8 85
A16
A9 86
G15/A15
A10 87
G14/A14
A11 88
G13/A13
89
VDD
A12 90
G12/A12 U501
A13 91
G11/A11
A14 92
G10/A10
CXP82032
A15
93
G9/A9
A16 94
G8/A8
95
G7/A7
96
G6/A6
G6 97
G5/A5
G5
98
G4/A4
G4 99
G3/A3
G3 100
G2/A2
JP3 JP5
JP4
JP6
JP1 JP2
R531
22K
R530
22K
J507 13P-SAN
TO AN_ SW PCB
P806
Double Auto Reverse Cassette Deck
6
D500
R580
SLR-342VR
1K
S510 S511
SSSF013 SSSF012
DUAL REC
R562
D501
2 OFF SEPARATE
R581 18K C516
SLR-342DU
1 0.047(CC)
1K
3 1 2
SLV 3
R561
6.2K 4 R571
SYNC REV
MSTR 6.2k
D502
R582
SLR-342VR
1K IN/OUT
CONTROL
DUB
D503
R583
SLR-342VR
1K
HI DUB
S509-B
SSSF023
7
8 6
9
R563
47K
C515
0.047(CC)
R560
4.7K
50 TAPE1
PD4/A51
49 REC B1
PD3/A52
48 DIR1
PD2/A53
REEL T1
47 C510
PD1/A54
C511 47/10
46 REEL S1
0.1(CC)
PD0/A55
45 C514
VFDP
0.047(CC)
44
VDD
43
PI3/TEX
END1
42 C513
PI2/TX
0.047(CC)
U502
41
VSS M51957BL
X500
40 16MHz
XTAL
39
EXTAL
38
RST
37 C512
PI1
330P(CC)
36 KEY4
PA7/AN7
35 KEY3
PA6/AN6
34 KEY2
PA5/AN5
KEY1
33
PA4/AN4
32 MET2R
PA3/AN3
Q501
31 MET2L
DTC124ES
PA2/AN2
MST
C517
C519 R556 R557
0.1U
0.1U 10K 10K
( CC)
(CC)
C518 0.1U(CC) COMMON
Q502
Q503
DTC124ES
C520 0.1U(CC)
DTC124ES
J506
5P-SAN
J505 11P-SAN
TO MAIN PCB TO MAIN PCB
P502 P507
7
KEY1 PCB
R610
J600
P500 1K
B0 1 1
B1 2 2 D600
SLR-342MG
B2
3 3
REV
R611
B3 4
4 1K
5 5
R570 D601
4.7K 6 6 SLR-342MG
7 7
FWD
8 8 R612
1K
9
9
D602
9P-PH
9P-SAN SLR-342DU
PAUSE
R613
1K
D603
SLR-342VR
REC
S600
SKHVBE
STOP
R600
S601
560 SKHVBE
PAUSE
R601
S602
750 SKHVBE
PLAY FWD
R602
S603
1K SKHVBE
PLAY REV
R603
S604
1.3K SKHVBE
REW
R604
S605
2K SKHVBE
FF
R605
S606
3.3K SKHVBE
REC
C601
0.047(CC)
KEY2 PCB
P501
J650
B4 9
9
D650
B5 8 8
R660
SLR-34VR 1K
B6 7 7
REC
6
B7 6
D651
5 5
R661
4
4 SLR-34DU 1K
3 3
PAUSE
2 2
D652
1 1
9P-PH R662
9P-SAN SLR-34MG 1K
FWD
D653
R663
SLR-34MG 1K
REV
S650 SKHVBE
R533
STOP
R650
2.7K
S651 SKHVBE
560
R532
PAUSE
R651
1K
S652 SKHVBE
750
PLAY FWD
R652
S653 SKHVBE
1K
R558
PLAY REV
2.7K
R653
S654 SKHVBE
1.3K
REW
R654
S655 SKHVBE
2K
FF
R655
S656 SKHVBE
3.3K
REC
C650
0.047(CC)
302 II
MK
1 st Issue; January 2002