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1M
R38A
220R
R16A
100u 16V
C10A
249R
R13A
4M7
R24A
1K2
R31I
1K2
R26A
1K2
R25A
100u
35V
C5A
1K
R3A
RED
CHAN_CLIP
LD1A
10K
R37A
10K
R15A
1K2
R30I
4148
D2A
4148
D1A
4K7
R2A
10K
R27A
22U
35V
C6A
22U
35V
C7A
4K7
R1A
100n
C3A
100n
C4A
10K
R17A
4148
D4A
CW
MONITOR
B
10K
P2A
MPSA13
Q1A
470R
R9J
100n
C2A
100n
C1A
8K2
R32A
1K5
R31A
33u16v
C15A
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
D
D
D
D
D
.
NOV/26/01
FEB/27/01
OCT/13/98
MAY/07/97
V
V
V
V
V
.
1.40
1.30
1.0
1.50
N
N
N
N
N
R40,R41_1K2->3K
PC#6473_C12A_6N8->5N6_C23A_47N->22N
CORRECTION_RENUMBER_R42A-R17A
MADE_FROM_M1100
PC#5370_ADD_C17A
AP-812/818
M1155IN.SCH_DATABASE_HISTORY
25v
10n
C59B
100u
16V
C11A
82K
R14A
CW
GAIN
20K
05C P1A
1/2
33078
U1AB
6
5
7
4K99
R4A
4K99
R5A
1n5
C9A
1n5
C8A
CW
PAN
B
10K
P7A
10K
R36A
1/2
33078
U2AB
6
5
7
4K99
R11A
2K
R35A
562R
R8A
249R
R6A
330N
C16A
INPUT
MIC
JB1A
1
3
2
249R
R7A
4K99
R10A
2K
R33A
10K
R34A
1/2
33078
U3AB
6
5
7
33K
R42A
RING
BAL_LINE_IN
1/4"_VERTICAL
JB2A
4K7
R22A
AS_OFKNOBPART#FUNCTIONREF
10
9
8
7
6
5
4
3
2
1
#
MODEL(S):-
.
.
.
.
.
.
.
.
.
JAN/2000
.
.
#8680
#8392
#8394
#8395
#8395
#8395
#8395
#8392
.
.
#4584
#4537
#4566
#4537
#4385
#4537
#4537
#4567
.
.
VOLUME
PAN
MON1
LOW
SWEEP
MID
HIGH
GAIN
.
.
P8A-L
P6A-L
P2A-L
P3A-L
P9A-L
P4A-L
P5A-L
P1A-L
AP812
M1155/1156.PCB_POT_LIST
25v
4n7
C61B
4K7
R21A
1/4
TLO74
U4AB
2
3
1
CW
BASS
10K
B P3A
CW
HIGH
10K
B P5A
1K2
R18A
1K2
R19A
5n6
C12A
4N7
C13A
CW
EFX
B
10K
P6A
18K
R28A
562R
R9A
3K
R41A
470R
R8J
620R
R98B
1n5
C1
16V
33u
C14A
2n2
C17A
D
10A
10K
P8I
CHAN_LVL
33U16V
C13
D
10A
10K
P8I
CHAN_LVL
CW
20K
05C
P1I
10K
R27J
4148
D3J
33u16v
C12J
33u 16v
C11J
1K5
R315
10K
R24J
CW
20K
05C
P1I
GAIN
GAIN
CW
50K
B
P3I
10K
R24I
1/4
TLO74
U17
2
3
1
33u 16v
C11I
33u16v
C12I
1K5
R26J
10K
R27I
1/2
33078
U1IJ
6
5
7
RING
LINE_IN_RIGHT
1/4"_VERTICAL
JB2J
2K
R15J
100U 16V
C7I
100U 16V
C7J
4148
D1I
100n
C1IJ
100n
C2IJ
100n
C4IJ
100n
C3IJ
220R
R30IJ
470R
R8I
470R
R9I
18K
R22I
4148
D1J
10K
R101J
4K99
R1J
4K99
R1I
RCA
LEFT
JB1IJ
1
2
RCA
RIGHT
JB1IJ.
1
2
3K
R40A
CW
50K
B
P3I
100U 16V
C8I
2K
R14J
2K
R14I
2K
R15I
4148
D3I
4148
D5I
MPSA13
Q1IJ
CW
10K
B
P5I
18K
R22J
6N8
C13J
6N8
C13I
CW
10K
B
P5I
RED
CHAN_CLIP
LD1IJ
18K
R16IJ
33K
R23J
1/2
33078
U1IJ
2
3
1
4K99
R3J
4K99
R2J
1N5
C6J
1N5
C5J
100R
R97B
4K99
R5I
82K
R13I
562R
R4J
4K99
R7I
1N5
C5I
1N5
C6I
4K99
R2I
4K99
R3I
1/4
TLO74
U19
6
5
7
47K
R92A
562R
R6I
15K
R108B
4K99
R5J
82K
R13J
4K99
R7J
10
9
8
7
6
5
4
3
2
1
# DESCRIPTION OF CHANGEVER#DATE
MODEL(S):-
D
D
D
NOV/26/01
AUG/30/00
NOV/15/99
FEB/23/99
OCT/13/98
.
MAY/07/97
V
V
V
V
1.20
1.10
1.00
1.0
.
1.50
N
N
N
N
PC#6213_ADD_R315_R10_6K8->3K
PC#6140_HEADPHONE_JK_REPLACED
SWAP_CONNECTIONS_AT_C13&C16
MADE_FROM_M1101
ADD_150R(R112A,B)_TO_EQ
PC#5370_R21I/R21J_18K->47K
AP-812/818
M1156.SCH_DATABASE_HISTORY
562R
R6J
10K
R29I
2K
R28I
2K
R28J
10K
R29J
CW
BAL
1B
10K
P7I
1/4
TLO74
U18
6
5
7
390R
R12J
10U16V
C33A
68N
C15J
4M7
R20I
1N
C10I
4K7
R18I
4K7
R17I
562R
R4I
CW
EFX
1B
10K
P6I
68N
C15I
39K
R19I
4148
D5J
4M7
R20J
22N
C23A
CW
SWEEP
A
10K
R14
4K7
R17J
1N
C10J
4K7
R18J
RING
POST_EQ_OUT
MON(R)
JB4
CW
MONITOR
1B
10K
P2I
390R
R12I
1/4
TLO74
U18
2
3
1
39K
R19J
100n
C5IJ
100n
C6IJ
1/4
TLO74
U17.SYM
33K
R23I
100n
C8IJ
100n
C7IJ
BC560
Q21B
4148
D6J
4148
D6I
CW
10K
B
P4I
RING
LINE_IN_LEFT
1/4"_VERTICAL
JB2I
CW
10K
B
P4I
MC3
3
-3DB
GREEN
LD15
MC3
4
RING
PRE_EQ_OUT
LEFT
JB2
22u
35V
C23
33K
R37
MC3
5
-9DB
GREEN
LD14
620R
R63
6K98
R30
33K
R55
MC3
6
1M
R88
47K
R35
CW
100K
AP9A
33U16V
C28
10R
R64
100n
C36
620R
R54
RING
PRE_EQ_OUT
RIGHT
JB1
-18DB
GREEN
LD13
MC3
7
22u35V
C27
MC3
8
MC3
9
2K2
R77
220R
R73
1/2
33078
U1
2
3
1
3K
R10
47p
C8
CW
MON_MASTER
50K
1B P3
MC3
10
680R
R91
MC3
11
MC3
12
RING
INPUT
AMP_2/B
JB5
47R
R72
RING
POST_EQ_OUT
MAIN(L)
JB3
1N5
C18
1N5
C17
1K
R67
ENCODER
MODIFY
P24
12345
RING
INPUT
AMP_1/A
JB6
1N5
C15
1K
R59
1K
R58
1N750A
6V2
D1
620R
R44
J1
12
150p
C6
6K8
R7
36K
R29
2K
R2
1K5
R82
2K7
R81
27K
R38
6K98
R26
47K
R36
1N5
C14
3K3
R80
2K
R79
1/2
33078
U15
6
5
7
6K98
R27
RED
AMPA_CLP
LD7
45K3
R28
100n
C32
14K0
R49
20K0
R46
20K0
R47
14K0
R48
RING
OUT
MONITOR
JB7
100n
C34
1/2
33078
U1
6
5
7
620R
R68
470R
R90
620R
R69
MPSA13
Q5
.
MC3
1
4K99
R41
220R
R12
10R
R56
22u
35V
C25
IN
OUT
SW1
1
2
3
MAIN
L
RED
MON_CLP
LD5
4K7
R89
10K
R40
150p
C3
PHANTOM
ORANGE
LD6
ENCODER
EFFECT
P25
12345
6K8
R4
4K99
R43
100n
C33
100n
C31
100n
C35
MC3
2
10K
R42
470R
R78
2K
R1
33K
R11
1K5
R94
6K98
R32
10K
1B
CHANN
P8A
45K3
R33
1K5
R93
1/2
33078
U4
2
3
1
33K
R53
100n
C38
D
1B
10K
P4
22u
35V
C24
100n
C37
100n
C22
1K
R66
IN
OUT
SW1
4
5
6
MONITOR
R
1/4
TLO74
U4AB
6
5
7
D6
620R
R65
620R
R57
180n
C43
100K
R111A
D
1B
10K
P4
MASTER_EFX_RTN
33U16V
C7
33U16V
C4
33U16V
C1
100n
C30
33U16V
C72A
620R
R45
270R
R20
33U16V
C2
CW
HEADPHONE
50K
1B P7
270R
R22
270R
R21
270R
R18
7K5
R99B
620R
R24
620R
R23
CW
MASTER_EFX_SEND
50K
1B P6
100n
C29
CW
10K
P4A
100n
C19
6K8
R39
4148
D3A
47P
C11
100p
C12
10K
R13
1/2
33078
U15
2
3
1
100K
R111B
10K
R15
S2_MAIN
50K
1B P2
S1_MAIN
50K
1B P1
470R
R84
1/4
MC4741
U2
2
3
1
TLO72
1/2
4=V-,8V+
U5
2
3
1
1/4
MC4741
U2
13
12
14
1/4
MC4741
U2
9
10
8
1/4
MC4741
U2
6
5
7
33K
R31IJ
RING
SND
EFX
JB8
2K
R74
POWER
GREEN
LD17
1/4
LM339
U12
6
7
1
1/4
LM339
U12
4
5
2
1/4
LM339
U12
10
11
13
1/4
LM339
U12
8
9
14
1/4
LM339
U13
8
9
14
1/4
LM339
U13
10
11
13
1/4
LM339
U13
6
7
1
1/4
LM339
U13
4
5
2
0DB
YELLOW
LD12
-18DB
GREEN
LD9
-9DB
GREEN
LD10
-3DB
GREEN
LD11
MPSA56
Q8
MPSA56
Q9
220R
R76
2K
R75
0DB
YELLOW
LD16
10K
R17
4148
D4
4148
D5
TLO72
1/2
(4=V-,8V+)
U5
6
5
7
4148
D3
4148
D2
1M
R83
200K
R86
47P
C39
1/2
33078
U4
6
5
7
16V
100n
C26
16V
100n
C21
36K
R31
470R
R85
33K
R34
CW
EFX_TO_MON
1B
10K
P5
22u35V
C40
33U16V
C72B
15K
R70A
33U16V
C5
RED
AMPB_CLP
LD8
33K
R3
680R
R92
22u
35V
C20
1/2
TLO72
U14
2
3
1
1/2
TLO72
U14
6
5
7
IN
OUT
MONITOR
CUE_CH11+12
IN
OUT
MONITOR
CUE_CH11+12
33K
R62
IN
OUT
MONITOR
CUE_CH9+10
IN
OUT
MONITOR
CUE_CH9+10
TLO72
1/2
(4=V-,8V+)
U6
6
5
7
TLO72
1/2
(4=V-,8V+)
U6
2
3
1
620R
R71
620R
R70
100R
R97A
620R
R98A
15K
R108A
33078
1/2
(4=V-,8V+)
U16
2
3
1
PCB#:YORKVILLE NAME:
MODELS: SCH ISSUE:
TITLE:
DATE:
M1155-M1156
AP-818
AP-812
AP812MIX.SCH
NOV/26/2001
MIXER/EQ
1.40
7K5
R99A
BC560
Q21A
47K
R92A
25v
4n7
C61A
25v
10n
C59A
100R
R93A
620R
R94A
7K5
R95A
56K
R88A
25v
1n
C65A
25v
2n2
C63A
100R
R89A
620R
R90A
7K5
R91A
BC560
Q19A
47K
R84A
25v
10n
C66A
25v
1u
C52A
100R
R85A
620R
R86A
7K5
R87A
BC560
Q22A
56K
R80A
25v
22n
C64A
25v
47n
C62A
100R
R81A
680R
R82A
7K5
R83A
BC560
Q17A
47K
R76A
25v
180n
C58A
25v
68N
C60A
100R
R77A
750R
R78A
7K5
R79A
BC560
Q20A
82K
R72A
25v
680n
C54A
25v
330n
C56A
100R
R73A
820R
R74A
7K5
R75A
BC560
Q15A
1KHz
Y
20K
P14A
63Hz
Y
20K
P10A
2KHz
Y
20K
P15A
500Hz
Y
20K
P13A
4KHz
Y
20K
P16A
33U16V
C16
250Hz
Y
20K
P12A
RING
.
HEADPHONE
100U 16V
C8J
8KHz
Y
20K
P17A
47P
C69A
15K
R109A
33n
C70A
125Hz
Y
20K
P11A
16KHz
Y
20K
P18A
33n
C71A
15K
R110A
220R
R112A
33078
1/2
(4=V-,8V+)
U16
6
5
7
25v
33n
C55A
25v
18n
C57A
56K
R96A
BC560
Q16A
7K5
R103A
680R
R102A
100R
R101A
25v
100n
C51A
25v
68n
C53A
56K
R100A
82K
R104A
25v
330P
C67A
25v
5N6
C68A
100R
R105A
620R
R106A
7K5
R107A
BC560
Q23A
BC560
Q18A
100R
R93B
620R
R94B
7K5
R95B
56K
R88B
25v
1n
C65B
25v
2n2
C63B
100R
R89B
620R
R90B
7K5
R91A
BC560
Q19B
47K
R84B
25v
10n
C66B
25v
1u
C52B
100R
R85B
620R
R86B
7K5
R87B
BC560
Q22B
56K
R80B
25v
22n
C64B
25v
47n
C62B
100R
R81B
680R
R82B
7K5
R83B
BC560
Q17B
47K
R76B
25v
180n
C58B
25v
68N
C60B
100R
R77B
750R
R78B
7K5
R79B
BC560
Q20B
82K
R72B
25v
680n
C54B
25v
330n
C56B
100R
R73B
820R
R74B
7K5
R75B
BC560
Q15B
1KHz
Y
20K
P14B
63Hz
Y
20K
P10B
2KHz
Y
20K
P15B
500Hz
Y
20K
P13B
4KHz
Y
20K
P16B
200K
R87
250Hz
Y
20K
P12B
1K5
R26I
220R
R112B
8KHz
Y
20K
P17B
47P
C69B
15K
R109B
33n
C70B
125Hz
Y
20K
P11B
16KHz
Y
20K
P18B
33n
C71B
180N
C44
15K
R110B
15K
R70B
25v
33n
C55B
25v
18n
C57B
56K
R96B
BC560
Q16B
7K5
R103B
680R
R102B
100R
R101B
25v
100n
C51B
25v
68n
C53B
56K
R100B
82K
R104B
25v
330P
C67B
25v
5N6
C68B
100R
R105B
620R
R106B
7K5
R107B
BC560
Q23B
BC560
Q18B
4K7
R39A
BC550
Q3A
1K2
R30J
1K2
R31J
1/4
TLO74
U19
2
3
1
18
20
19
17
15
16
14
13
12
11
.
.
.
.
.
.
.
.
.
.
#8397
#8397
#8392
#8680
#8680
#8680
#8393
#8393
#8393
NO_KNOB
#4581
#4581
#4568
#4581
#4581
#4579
#4566
#4566
#4568
#3996
MODIFY
SELECT
HEADPHONE
MAIN_R
MAIN_L
EFX_RETURN
EFX_TO_MON
MAS-EFX-SND
MON-MASTER
EQ
P12
P11
P7
P2
P1
P4
P5
P6
P3
P10-P18
IG
IG
IG
IG
IG
+24V
+24V
+24V
-15V
-15V
-15V
-15V
-15V
-15V
-15V
-15V
MONBUSS+
LEFT
EFXBUSS-
EFXBUSS-
LED+15V
LED+15V
LED+15V
LED+15V
LED+15V
LED_COM
LED_COM
LED_COM
LED_COM
BREF
BCLP
BCLP
ACLP
ACLP
CH9+10
CH9+10
BSIG
GE2_OUT
RIGHT
GE1_IN
BIT4
BIT5
BIT6
BIT7
BIT3
BIT2
BIT1
BIT0
+5V
AREF
ART_GNDI
ART_IN
ART_GNDO
ART_OUTR
ASIG
ART_OUTL
GE2_IN
GE1_OUT
CH11+12
DIGND
DIGND
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGNDLVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGNDLVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
LVGND
1-7,2-6,3,5
PINS ON DUAL OP AMPS:
FOR CHANNELS 2,4,6,8 REPLACE
FOR CHANNELS 2,4,6,8 REPLACE
5-10,6-9,7-8
5-10,6-9,7-8
1-14,2-13,3-12
1-14,2-13,3-12
PINS ON QUAD. OP AMPS:
PINS ON QUAD. OP AMPS:
FOR CHANNELS 11&12 REPLACE
LEFTRIGHT
MID
MID
CHANNEL 1
EQ1EQ2
(R)
(L)
TO DIGITAL EFX
BY PASS CAPS
BAR DISPLAY
MASTER SECTION
ALL UNMARKED DIODES ARE IN4148
CHANNEL 11 AND 12 SIMILAR TO CHANNELS 9 AND 10
CHANNELS 9 TO 12
STEREO CHANNELS SECTION
LOW
LOW
HIGH
HIGH
CHANNEL 10
CHANNEL 9
0dB
0dB
-40
-40
CHANNELS 2 TO 8 SIMILAR TO CHANNEL 1
CHANNEL 1
TO POWER AMP
P9A
U:\AP812V14.PRN