20K
R131
100U
16V
C4D
180K
R8D
220P
C5A
CONN2
1
2
3
4
D1G
D2G
1/2
TLO72
U3
6
5
7
1/2
TLO72
U3
2
3
1
S
R
T
LEFT/MONO
R
J2F
1
2
3
4
5
6
S
R
T
HEADPHONE
R
J10
1
2
3
4
5
6
S
R
T
MONO_AMP_INPUT
GOLD_T
J9
1
2
3
4
5
6
S
R
T
EFX1_SEND
NO_GOLD
J12
1
2
3
4
5
6
S
R
T
LINE_OUT
NO_GOLD
J8
1
2
3
4
5
6
S
R
T
LINE_OUT
NO_GOLD
J6
1
2
3
4
5
6
S
R
T
EFX2_SEND
NO_GOLD
J11
1
2
3
4
5
6
100n
C48
100n
C47
100n
C49
100n
C46
100n
C42
100n
C40
100n
C38
100n
C36
100n
C34
100n
C43
100n
C41
100n
C39
100n
C37
100n
C35
100n
C44
100n
C45
1/4
MC4741
U4
2
3
1
1/4
MC4741
U4
6
5
7
1/4
MC4741
U4
9
10
8
1/4
MC4741
U4
13
12
14
1/4
MC4741
U5
13
12
14
1/4
MC4741
U5
2
3
1
1/4
MC4741
U5
6
5
7
1/4
MC4741
U5
9
10
8
100n
C13
D9
D10
D7
D5
D6
D
CW
B
20K
GAIN
P1G
D
CW
B
20K
GAIN
P1G
220P
C1G
33K
R32
10K
R31
CW
20K
B
P2
MASTER
LEFT
CW
20K
B
P2
MASTER
RIGHT
33K
R39
10K
R38
4K7
R14
47K
R17
1K
R12
4K7
R7F
4K7
R14F
1K
R13
RED
LD2
GREEN
LD3
10K0
R11A
A13
Q1D
A63
Q1A
RED
LD1D
CW
AUX1/2
5BM
250K
P4A
D7D
D9D
D8D
10K0
R5A
A13
Q2
1/2
33078
U2
2
3
1
1/2
33078
U2
6
5
7
1/2
33078
U1D
2
3
1
1/2
NJMO72BL
U2A
6
5
7
D8
1/2
NJMO72BL
U2A
2
3
1
120R
R7D
1/2
TLO72
U3D
2
3
1
4K99
R2D
D6D
10R
R30A
1/2
TLO72
U1A
6
5
7
562R
R3D
220P
C3G
47K
R5
220P
C5F
20K0
R13F
10K
R3
10K0
R5F
CW
50K
B
BASS
P2A
4K99
R5D
562R
R4D
4K99
R1D
4K7
R11
4K7
R10
249R
R30
10K
R33
10K
R40
D11
20K0
R6F
249R
R20
1K
R16
1K5
R66
100n
C105
CW
50K
B
TREBLE
P3A
4K99
R6D
CW
GAIN
20K
5C
P1D
CW
50K
B
TREBLE
P3A
CW
50K
B
BASS
P2A
1N
C1D
1/2
TLO72
U1A
2
3
1
MPSA13
E B C
MPSA63
100p
C19
100n
C12D
NUTRIX
MIC_IN
J2D
1
3
2
1/2
TLO72
U1F
6
5
7
1/2
TLO72
U1F
2
3
1
100n
C9G
100n
C10G
100n
C9F
100n
C10F
S
R
T
RIGHT
R
J2A
1
2
3
4
5
6
S
R
T
LEFT/MONO
R
J1A
1
2
3
4
5
6
10K0
R9F
20K0
R10F
10K0
R2F
RED
LD1A
10K0
R8A
S
R
T
MONO
NO_GOLD
J1D
1
2
3
4
5
6
1N
C2D
D4D
D5D
20K0
R9A
D3D
10K0
R2A
20K0
R3F
"P12"
STYLE
2U2
16V
C3
100n
C19A
100n
C18A
100p
C4
100n
C21A
D2D
100n
C20A
20K0
R3A
47K
R15A
4K7
R18A
33K
R12D
4U7
16V
C5D
D1D
4K7
R19A
10K
R27A
D1F
10K
R21A
47K
R20A
10K
R16A
4K7
R14A
100n
C13D
270K
R10D
D2F
CW
20K
B
GAIN
P1A
4K7
R13A
100n
C17A
100N
C9A
1N
C12A
220P
C1F
100N
C11A
220P
C3F
10K
R1
20K0
R6A
180K
R23A
1N
C10A
10K
R26A
1K
R28A
220P
C7F
249R
R27
1K
R29A
10u
16V
C11D
D4A
20K0
R60
20K0
R63
15P
C6A
1/2
33078
U7
6
5
7
1/2
TLO72
U8
2
3
1
1/2
TLO72
U2D
2
3
1
CW
20K
B
GAIN
P1A
10u
16V
C15A
10u
16V
C16A
D1A
D2A
100n
C7D
100N
C8D
1N
C9D
CW
EFX1/2
5BM
250K
P4D
249R
R65
20K0
R64
D5A
20K0
R12A
33K
R24A
1K
R25A
D6A
1K
R11D
1K
R107
20K0
R61
249R
R55
4K7
R59
20K0
R54
4K7
R20D
20K
R19D
20K
R18D
4K7
R13D
4K7
R14D
1K
R16D
4U7
16V
C4A
47K
R15D
10K0
R12G
S
R
T
RIGHT
R
J1G
1
2
3
4
5
6
180K
R15
4U7
16V
C8A
220P
C7G
2U2
16V
C18
S
R
T
RIGHT
R
J1F
1
2
3
4
5
6
100P
C27
100P
C7
100P
C6
470p
C28
RCA
RIGHT
J2
1
2
RCA
LEFT
J1
1
2
RCA
RIGHT
J4
1
2
RCA
LEFT
J3
1
2
D3A
220P
C1A
220P
C3A
33U
16V
C3D
CW
BASS
50K
B
P2D
CW
TREBLE
50K
B
P3D
10K
R4
220P
C7A
D
CW
B
20K
GAIN
P1
100p
C2
D
CW
B
20K
GAIN
P1F
D
CW
B
20K
P1
GAIN
D
CW
B
20K
GAIN
P1F
330N
C14
100p
C21
330N
C16
47p
C17
47p
C15
NUTRIX
LINE_OUT
J7
1
3
2
NUTRIX
LINE_OUT
J5
1
3
2
"P17"
STYLE
"P16"
STYLE
4K7
R111
1/2
33078
U7
2
3
1
100P
C29
270R
R42
270R
R43
270R
R44
270R
R41
270R
R36
270R
R37
270R
R34
47K
R2
20K0
R25
2K49
R26
2K49
R29
20K0
R28
2U2
16V
C20
249R
R58
270R
R35
10K0
R12F
20K0
R57
10R
R24
20K0
R56
20K0
R21
20K0
R18
2K49
R22
2K49
R19
249R
R23
10R
R15F
YORKVILLE
NAME:
PCB#&VER:
MODELS:
SCH ISSUE:
TITLE:
DATE:
M514-1.10
300K
M514ALL.SCH
NOV/28/95
300K_INPUT_BOARD
1.30
1/4
TLO74
U9
13
12
14
1/4
TLO74
U9
2
3
1
20K0
R3G
10K0
R2G
20K0
R10G
10K0
R9G
1/2
TLO72
U1G
2
3
1
1/2
TLO72
U1G
6
5
7
2U2
16V
C4G
20K0
R6G
10K0
R5G
20K0
R13G
220P
C5G
4K7
R14G
4K7
R7G
S
R
T
LEFT/MONO
R
J2G
1
2
3
4
5
6
1K
R7
D4
A13
Q1
RED
LD1
47K
R9
180K
R8
D3
100n
C5
10R
R15G
4K7
R52
470p
C26
20K0
R53
249R
R62
1/2
TLO72
U8
6
5
7
10
9
8
7
6
5
4
3
2
1
#
DESCRIPTION OF CHANGE
VER#
DATE
MODEL(S):-
D
D
D
D
D
D
D
NOV/28/95
DEC/13/94
AUG/17/94
V
V
V
V
V
V
V
1.30
1.20
1.10
N
N
N
N
N
N
N
.
PC#4715
PC#4639
300K
M514.SCH_DATABASE_HISTORY
2U2
16V
C1
10K
R6
D1
D2
33u
16V
C30
33u
16V
C31
33u
16V
C32
2U2
16V
C8G
2U2
16V
C8F
2U2
16V
C4F
4K7
R110
33u
16V
C33
15P
C2A
D12
D103
180K
R108
47K
R109
RED
LD10
A13
Q10
D104
4U7
16V
C130
15P
C10D
4K7
R129
47K
R126
CONN1
1
2
3
4
1/4
TLO74
U9
6
5
7
47N
C123
100N
C125
33N
C124
4K7
R125
220N
C120
220N
C121
180K
R124
10K
R123
47K
R120
47K
R121
27K
R122
10N
C122
47N
C127
100N
C129
4K7
R132
20K
R127
10R
R134
1/2
TLO72
U10
2
3
1
1/2
TLO72
U10
6
5
7
47K
R133
47K
R130
47K
R128
100P
C126
100P
C128
1/4
TLO74
U9
9
10
8
AUX1BUSS
AUX1BUSS
A2G
A2G
IG
IG
IG
IG
IG
IG
IG
IG
-15V
-15V
-15V
-15V
-15V
-15V
-15V
LTBUSS
LTBUSS
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
SG
RTBUSS
RTBUSS
OG
OG
AUX2BUSS
AUX2BUSS
A1G
A1G
LG
LG
LG
LG
LG
LG
LG
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
R10D,10E FROM 180K TO 270K
R19,22,26,29 FROM 20K0 TO 2K49
CORRECTION AT HEADPHONE JACK.
CHAN 3 PARTS HAVE A "c" SUFFIX
CHAN 2 PARTS HAVE A "b" SUFFIX
CHAN 5 IC PINOUTS ARE IN BRACKETS
CHAN 5 PARTS HAVE AN E SUFFIX
CHAN 5 IS IDENTICAL
ONLY CHAN 4 IS SHOWN
CHAN 2 AND CHAN 3 ARE IDENTICAL
ONLY CHAN 1 IS SHOWN
NOTE: ALL UNMARKED DIODES IN4148
INPUT
CHANNEL 1
(5)
(5)
(5)
(6)
(6)
(6)
(7)
(7)
(7)
THE 300K BY A.WILSON AND C.CHIU
MASTER/AUX
EFX2
EFX1
TAPE
EFX1
EFX2
AUX
EFX1
EFX2
CLIP
CLIP
NOTE: ALL UNMARKED DIODES 1N4148
OP AMP BYPASS CAPS
CLIP
CLIP
CHANNEL 4
INPUT
LINE OUTS
LINE OUTS
SEND
SEND
RETURN
RETURN
INPUT
LEFT
RIGHT
OUTPUT
