Alto S-16 Schematic
Service Manual
Model: S16(16-CHANNEL MIXING CONSOLE)
www.altoproaudio.com
Version: 1.1
CONTENTS
1
1. Specification
2. Block Diagram
3. Schematic Diagram
4. Printed Circuit Board
5. Wiring Diagram
6. Test Procedure
7. Electrical Parts List
8. Exploded Views & Mechanical Parts List
9. Notes
8. TECHNICAL SPECIFICATIONS
1. SPECIFICATION (S-16)
2
Mono input channels
Microphone input
Frequency response
Distortion (THD&N)
Gain range 0dB to 60dB(MIC),
SNR (Signal Noise Rated)
Line input
Frequency response
Distortion (THD&N)
Sensitivity range
Stereo input channels
Line input
Frequency response
Distortion (THD&N)
Impedances
Microphone input
Channel Insert return
All other inputs
Tape out
All other output
Equalization
Hi shelving
Mid bell (Mono)
Hi Mid (stereo)
Mid Low (stereo)
Low shelving
Low Cut filter
Main Mix Section
Noise (Bus noise)
Fader 0dB, all input channels assigned
and set to UNITY gain:-90dBr(ref.:+4dBu)
Max output
+22dBu unbalanced, 1/4" jacks
AUX Return gain range
AUX Send max out
Power supply
Main voltage
Europe210-240V~, 50Hz
U.K./Australia240V~, 50Hz
Power Consumption 35watts
Fuse 100-120V~ : T500mAL
200-240V~ : T250mAL
Main connection
Physical
Dimension (WXDXH) 408mmX370mmX28/80mm (16"x14.6"x0.8"/3.1")
Net weight
electronically balanced, discrete input configuration
10Hz to 55kHz, +/-3dB
0.005% at +4dBu, 1kHz
115dB
electronically balanced
10Hz to 55kHz, +/-3dB
0.005% at +4dBu, 1kHz
+15dBu to -45dBu
unbalanced
10Hz to 55kHz, +/-3dB
0.005% at +4dBu, 1kHz
1.4Kohm.
2.5Kohm.
10Kohm or greater.
1Kohm.
120ohm.
+/-15dB @12kHz
+/-15dB @100Hz to 8kHz
+/-15dB @3kHz
+/-15dB @500Hz
+/-15dB @80Hz
75Hz, 18dB/oct.
Fader 0 dB, channels muted:-100.0dBr (ref.:+4dBu)
+22dBu balanced XLR,
- to +15dB
+22dBu
USA/Canada100-120V~, 60Hz
Standard IEC receptacle
5.2Kg (11.464 lb)
7654321
2. Block Diagram
8
MONO INPUT CHANNELS ( 1-8)
PHANTOM
POWER
+48V
2
MIC IN
D
LINE IN
MIC GAIN:0~60dB
LINE IN TRIM:+15dB~-45dB
3
1
STEREO INPUT CHANNELS (9-16)
3c
R
4d
RN
2b
TN
1a
T
5e
C
LEFT(MONO)
RIGHT
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
INSERT
-
+
-
+
-
3c
4d
2b
1a
5e
GAIN
+
R
RN
TN
T
S
SG/OL
LO M-H HIL-M
3K
4-BAND EQ
+/-15db
3K
4-BAND EQ
+/-15db
LO (FREQ) HI
MID
3-BAND EQ
+/-15db
75Hz
HI PASS
SG/OL
12K50080
12K50080
12K100Hz-8kHz80
FADER
3
1
LO CUT
MAIN MIX
LEVEL
ALT3-4
LEVEL
ALT 3-4
AUX1
LEVEL
AUX2
LEVEL
2TK
AUX SEND
R
T
S
AUX SEND1
R
T
S
AUX SEND2
+4dB/MIC
+4dB/MIC
2TK
TAPE OUT
MAIN OUT
R
T
S
2
3
1
MAIN MIX LEFT
R
T
S
2
3
1
MAIN MIX RIGHT
ALT 3-4 OUT
R
T
S
ALT-3(L)
R
T
S
ALT-4(R)
2TK
TAPE IN
LEFT
RIGHT
D
C
LEFT
RIGHT
ALT-3(L)
ALT-4(R)
LEFT-BUS
RIGHT-BUS
AUX-1
AUX-2
AFL-L
AFL-R
SOLO(PFL)
EFX SEND
FADER
2
POST
1 2
PRE
1 2
PAN
AUX2
AUX1
MAIN/ALT
SOLO
()
POST
PRE
POST
1 2
PRE
1 2
BALANCE
AUX2
MAIN/ALT
SOLO
()
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
ON
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
ON
AUX-2
LOGIC
AUX-1
AUX-2
LEFT-BUS
RIGHT-BUS
ALT-3(L)
ALT-4(R)
ALT 3-4 TO MIX
LEFT-BUS
RIGHT-BUS
2TK TO MIX
LEFT-BUS
RIGHT-BUS
MAIN MIX
POST
PRE
B
STEREO AUX RETURN 1
3c
R
4d
RN
2b
TN
1a
T
5e
LEFT(MONO)
RIGHT
STEREO AUX RETURN 2
LEFT
A
RIGHT
1 2 3 4 5 6 78
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
+
+
+
+
AUX1 RETURN
AUX2 / DSP
RETURN
AUX2 / DSP
AUX1
EFX TO AUX-1
1
2
3
1
2
3
AUX-1
LEFT-BUS
RIGHT-BUS
LEFT-BUS
AUX-1
RIGHT-BUS
AUX-1
LEFT-BUS
RIGHT-BUS
AUX-1
AUX-2
SOLO(PFL)
ALT-3(L)
ALT-4(R)
EFX SEND
AFL-L
AFL-R
CONTROL ROOM SOURCE
AFL L
AFL R
SOLO(PFL)
SOLO CTRL
PFL LED
(LEVEL SET)
SOLO MODE
()
AFL
()
PFL
CONTROL ROOM
& PHONES
SOLO ACTIVE
LEFT METER
RIGHT METER
PHONES OUTPUT
R
T
S
CONTROL ROOM OUTPUT
R
T
S
R
T
S
Titel
Size
Date:
File:
A3
ALTO MIXING CONSOLE
S-16 BLOCK DIAGRAM
22-Sep-2003
S16-MAP.Sch
PHONES
LEFT
RIGHT
Sheet
Drawn By:
RevisionModel No:
KEVIN LIN.
B
A
VER020825
11of
1110987654321
3. Schematic Diagram
12
S16MN1 (1/3)
D
C
B
EQ HI (12K)
R18
3K9
B50K
LO (80Hz)
EQ HI (12K)
R22
3K9
B50K
LO (80Hz)
EQ HI (12K)
R23
3K9
B50K
LO (80Hz)
EQ HI (12K)
R30
3K9
B50K
LO (80Hz)
VR1
B50K
VR3
VR8
B50K
VR10
VR15
B50K
VR17
VR22
B50K
VR24
C169
C97
6.8n(M)
22P
R391
1M
6
C129
33n(M)
R372
5K6
C171
6.8n(M)
C133
33n(M)
R380
5K6
C174
6.8n(M)
C137
33n(M)
R384
5K6
C275
6.8n(M)
C141
33n(M)
R388
5K6
5
6
5
6
5
6
5
C102
R393
C103
R394
C109
R397
R144
47K
22P
1M
R146
47K
22P
1M
R148
47K
22P
1M
R150
47K
R38
10K
R49
10K
R61
10K
R62
10K
U1B
4580M
U2B
4580M
U3B
4580M
U4B
4580M
C144
2.2u/50V
R154
4K7
C146
2.2u/50V
R156
4K7
C148
2.2u/50V
R158
4K7
C150
2.2u/50V
R160
4K7
C3
47u/25V
7
R27
6K8
TR1
BR
C14
47u/25V
7
R35
6K8
TR5
BR
C15
47u/25V
7
R45
6K8
TR9
BR
C27
47u/25V
7
R51
6K8
TR15
BR
TR2
BR
TR6
BR
TR10
BR
TR16
BR
+VCC
PGND
+VCC
PGND
+VCC
PGND
+VCC
PGND
VR7A
10KD
LEVEL
R176
1K5
VR14A
10KD
LEVEL
R178
1K5
VR21A
10KD
LEVEL
R180
1K5
VR28A
10KD
LEVEL
R182
1K5
LD3
RED
PEAK
LD6
RED
PEAK
LD9
RED
PEAK
LD12
RED
PEAK
R184
5K1
R196
5K1
R197
5K1
R209
5K1
R37
10K
U36B
4580M
R82
2K2
LOGIC
(LOGIC=2.0V or 0.5V)
R47
10K
U37B
4580M
R84
2K2
LOGIC
(LOGIC=2.0V or 0.5V)
R48
10K
U38B
4580M
R86
2K2
LOGIC
LOGIC
(LOGIC=2.0V or 0.5V)
R60
10K
U39B
4580M
R89
2K2
LOGIC
LOGIC
(LOGIC=2.0V or 0.5V)
7
LOGIC
7
LOGIC
7
7
C152
6.8n(M)
C128
33n(M)
R371
5K6
C156
6.8n(M)
C132
33n(M)
R379
5K6
C157
6.8n(M)
C136
33n(M)
R383
5K6
C163
6.8n(M)
C140
33n(M)
R387
5K6
-VCC
-VCC
-VCC
-VCC
C20
VR2
R17
3K
R21
3K
R28
3K
R29
3K
B50K
C88
182(M)
VR97B
500KC
(SOLO)
11
SW3D
PS-42E85L
VR9
B50K
C90
182(M)
VR98B
500KC
(SOLO)
11
PS-42E85L
VR16
B50K
C92
182(M)
VR99B
500KC
(SOLO)
11
SW9D
PS-42E85L
VR23
B50K
C93
182(M)
VR100B
500KC
(SOLO)
11
SW12D
PS-42E85L
MID (FREQ=100Hz-8K)
C96
22P
R36
10K
R78
5K1
3
2
U36A
4580M
R2
6K2
LD2
YEL
10
12
MID (FREQ=100Hz-8K)
C100
22P
R44
10K
R101
5K1
3
2
U37A
4580M
R6
6K2
LD5
YEL
10
12
SW6D
MID (FREQ=100Hz-8K)
C101
22P
R46
10K
R165
5K1
3
2
U38A
4580M
R10
6K2
LD8
YEL
10
12
MID (FREQ=100Hz-8K)
C108
22P
R59
10K
R166
5K1
3
2
U39A
4580M
R14
6K2
LD11
YEL
10
12
6
5
1
D2
BAS316
6
5
1
D4
BAS316
6
5
1
D6
BAS316
6
5
1
D8
BAS316
47u/25V
RTN-CH1
RTN-CH1
C1
6.8n(M)
VR97A
500KC
D
C
B
RTN-CH2
RTN-CH3
RTN-CH4
VR98A
500KC
VR99A
500KC
VR100A
500KC
RTN-CH2
RTN-CH3
RTN-CH4
R1
6K2
C5
6.8n(M)
R5
6K2
C11
6.8n(M)
R9
6K2
C12
6.8n(M)
R13
6K2
C29
47u/25V
C30
47u/25V
C76
47u/25V
C154
22P
R250
C4
18K
2
3
2
3
2
3
2
3
R92
10K
R100
10K
R110
10K
R111
10K
1
U1A
4580M
SW2C
PS-42E85L
8
SW3C
PS-42E85L
8
SW1A
PS-22E85L
2
SW1B
PS-22E85L
5
AUX1 PRE/POST
C155
22P
R255
18K
1
U2A
4580M
SW5C
PS-42E85L
8
SW6C
PS-42E85L
8
SW4A
PS-22E85L
2
SW4B
PS-22E85L
5
AUX1 PRE/POST
C161
22P
R256
18K
1
U3A
4580M
SW8C
PS-42E85L
8
SW9C
PS-42E85L
8
SW7A
PS-22E85L
2
SW7B
PS-22E85L
5
AUX1 PRE/POST
C168
22P
R259
18K
1
U4A
4580M
SW11C
PS-42E85L
8
SW12C
PS-42E85L
8
SW10A
PS-22E85L
2
SW10B
PS-22E85L
5
AUX1 PRE/POST
47u/25V
7
9
7
9
C16
47u/25V
7
9
7
9
C17
47u/25V
7
9
7
9
C28
47u/25V
7
9
7
9
1
3
4
6
1
3
4
6
1
3
4
6
1
3
4
6
VR6A
JQ10K
VR6B
JQ10K
VR13A
JQ10K
VR13B
JQ10K
VR20A
JQ10K
VR20B
JQ10K
VR27A
JQ10K
VR27B
JQ10K
POST
(PRE)
POST
(PRE)
POST
(PRE)
POST
(PRE)
PAN
J1
PAN
J2
PAN
J3
PAN
J4
SW2:MUTE/ALT3-4
SW3:SOLO,PFL
R185
5K1
R187
5K1
R268
27K
R269
27K
R188
5K1
R189
5K1
SW5:MUTE/ALT3-4
SW6:SOLO,PFL
R186
5K1
R199
5K1
R272
27K
R273
27K
R201
5K1
R202
5K1
SW8:MUTE/ALT3-4
SW9:SOLO,PFL
R198
5K1
R200
5K1
R276
27K
R277
27K
R212
5K1
R213
5K1
SW11:MUTE/ALT3-4
SW12:SOLO,PFL
R210
5K1
R211
5K1
R278
27K
R279
27K
R221
5K1
R222
5K1
SW2A
PS-42E85L
2
SW2B
PS-42E85L
5
SW3A
PS-42E85L
2
SW3B
PS-42E85L
5
AUX-POST
VR5
W50K
SW5A
PS-42E85L
2
SW5B
PS-42E85L
5
SW6A
PS-42E85L
2
SW6B
PS-42E85L
5
AUX-POST
VR12
W50K
SW8A
PS-42E85L
2
SW8B
PS-42E85L
5
SW9A
PS-42E85L
2
SW9B
PS-42E85L
5
AUX-POST
VR19
W50K
SW11A
PS-42E85L
2
SW11B
PS-42E85L
5
SW12A
PS-42E85L
2
SW12B
PS-42E85L
5
AUX-POST
VR26
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR4
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR11
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR18
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR25
W50K
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
RTN-CH5
RTN-CH6
RTN-CH7
RTN-CH8
VR68A
500KC
VR75A
500KC
VR83A
500KC
VR91A
500KC
RTN-CH5
RTN-CH6
RTN-CH7
RTN-CH8
C2
6.8n(M)
R3
6K2
C7
6.8n(M)
R7
6K2
C13
6.8n(M)
R11
6K2
C18
6.8n(M)
R15
6K2
C24
47u/25V
C32
47u/25V
C38
47u/25V
C77
47u/25V
R19
3K
R24
3K
R31
3K
R33
3K
VR66
B50K
3
2
C89
182(M)
VR68B
500KC
(SOLO)
11
SW34D
PS-42E85L
VR74
B50K
3
2
C91
182(M)
VR75B
500KC
(SOLO)
11
SW37D
PS-42E85L
VR82
B50K
3
2
C94
182(M)
VR83B
500KC
(SOLO)
11
SW40D
PS-42E85L
VR90
B50K
3
2
C95
182(M)
VR91B
500KC
(SOLO)
11
SW43D
PS-42E85L
C98
22P
10K
C104
22P
10K
C105
22P
10K
C110
22P
10K
R39
R52
R53
R63
MID (FREQ=100Hz-8K)
6
5
R79
5K1
1
U40A
4580M
R4
6K2
LD55
YEL
10
12
D10
BAS316
MID (FREQ=100Hz-8K)
6
5
R102
5K1
1
U42A
4580M
R8
6K2
LD58
YEL
10
12
D15
BAS316
MID (FREQ=100Hz-8K)
6
5
R167
5K1
1
U44A
4580M
R12
6K2
LD61
YEL
10
12
D16
BAS316
MID (FREQ=100Hz-8K)
6
5
R168
5K1
1
U46A
4580M
R16
6K2
LD64
YEL
10
12
D17
BAS316
R41
10K
7
U40B
4580M
R367
2K2
LOGIC
LOGIC
(LOGIC=2.0V or 0.5V)
R54
10K
7
U42B
4580M
R368
2K2
LOGIC
LOGIC
(LOGIC=2.0V or 0.5V)
R55
10K
7
U44B
4580M
R369
2K2
LOGIC
LOGIC
(LOGIC=2.0V or 0.5V)
R64
10K
7
U46B
4580M
R370
2K2
LOGIC
LOGIC
(LOGIC=2.0V or 0.5V)
C153
6.8n(M)
C130
33n(M)
R377
5K6
C160
6.8n(M)
C134
33n(M)
R381
5K6
C162
6.8n(M)
C138
33n(M)
R385
5K6
C167
6.8n(M)
C142
33n(M)
R389
5K6
-VCC
-VCC
-VCC
-VCC
EQ HI (12K)
VR65
B50K
R20
3K9
VR67
B50K
LO (80Hz)
EQ HI (12K)
VR73
B50K
R25
3K9
VR76
B50K
LO (80Hz)
EQ HI (12K)
VR81
B50K
R26
3K9
VR84
B50K
LO (80Hz)
EQ HI (12K)
VR89
B50K
R34
3K9
VR92
B50K
LO (80Hz)
C170
C99
6.8n(M)
22P
R392
1M
6
C131
33n(M)
R378
5K6
C273
6.8n(M)
C135
33n(M)
R382
5K6
C274
6.8n(M)
C139
33n(M)
R386
5K6
C276
6.8n(M)
C143
33n(M)
R390
5K6
5
R415
47K
C106
22P
R395
1M
6
5
R416
47K
C107
22P
R396
1M
6
5
R417
47K
C111
22P
R398
1M
6
5
R418
47K
R42
10K
R57
10K
R65
10K
R66
10K
U41B
4580M
U43B
4580M
U45B
4580M
U47B
4580M
C277
2.2u/50V
R427
4K7
C278
2.2u/50V
R428
4K7
C279
2.2u/50V
R429
4K7
C280
2.2u/50V
R430
4K7
C25
47u/25V
7
R431
6K8
TR25
BR
C72
47u/25V
7
R432
6K8
TR27
BR
C73
47u/25V
7
R433
6K8
TR29
BR
C78
47u/25V
7
R434
6K8
TR31
BR
TR26
BR
TR28
BR
TR30
BR
TR32
BR
+VCC
PGND
+VCC
PGND
+VCC
PGND
+VCC
PGND
VR72A
10KD
LEVEL
R451
1K5
VR80A
10KD
LEVEL
R452
1K5
VR88A
10KD
LEVEL
R453
1K5
VR96A
10KD
LEVEL
R454
1K5
LD56
RED
PEAK
LD59
RED
PEAK
LD62
RED
PEAK
LD65
RED
PEAK
R80
5K1
R103
5K1
R109
5K1
R169
5K1
C281
22P
R455
C26
18K
2
3
2
3
2
3
2
3
R43
10K
R58
10K
R67
10K
R68
10K
1
U41A
4580M
SW33C
PS-42E85L
8
SW34C
PS-42E85L
8
SW32A
PS-22E85L
2
SW32B
PS-22E85L
5
AUX1 PRE/POST
C282
22P
R456
18K
1
U43A
4580M
SW36C
PS-42E85L
8
SW37C
PS-42E85L
8
SW35A
PS-22E85L
2
SW35B
PS-22E85L
5
AUX1 PRE/POST
C283
22P
R457
18K
1
U45A
4580M
SW39C
PS-42E85L
8
SW40C
PS-42E85L
8
SW38A
PS-22E85L
2
SW38B
PS-22E85L
5
AUX1 PRE/POST
C284
22P
R458
18K
1
U47A
4580M
SW42C
PS-42E85L
8
SW43C
PS-42E85L
8
SW41A
PS-22E85L
2
SW41B
PS-22E85L
5
AUX1 PRE/POST
47u/25V
7
9
7
9
C74
47u/25V
7
9
7
9
C75
47u/25V
7
9
7
9
C79
47u/25V
7
9
7
9
1
3
4
6
1
3
4
6
1
3
4
6
1
3
4
6
VR71A
JQ10K
VR71B
JQ10K
VR79A
JQ10K
VR79B
JQ10K
VR87A
JQ10K
VR87B
JQ10K
VR95A
JQ10K
VR95B
JQ10K
POST
(PRE)
POST
(PRE)
POST
(PRE)
POST
(PRE)
PAN
J9
PAN
J10
PAN
J11
PAN
J12
SW33:MUTE/ALT3-4
SW34:SOLO,PFL
R81
5K1
R91
5K1
R459
27K
R460
27K
R93
5K1
R99
5K1
SW36:MUTE/ALT3-4
SW37:SOLO,PFL
R112
5K1
R119
5K1
R461
27K
R462
27K
R121
5K1
R164
5K1
SW39:MUTE/ALT3-4
SW40:SOLO,PFL
R113
5K1
R120
5K1
R463
27K
R464
27K
R172
5K1
R173
5K1
SW42:MUTE/ALT3-4
SW43:SOLO,PFL
R170
5K1
R171
5K1
R465
27K
R466
27K
R174
5K1
R175
5K1
SW33A
PS-42E85L
2
SW33B
PS-42E85L
5
SW34A
PS-42E85L
2
SW34B
PS-42E85L
5
AUX-POST
VR70
W50K
SW36A
PS-42E85L
2
SW36B
PS-42E85L
5
SW37A
PS-42E85L
2
SW37B
PS-42E85L
5
AUX-POST
VR78
W50K
SW39A
PS-42E85L
2
SW39B
PS-42E85L
5
SW40A
PS-42E85L
2
SW40B
PS-42E85L
5
AUX-POST
VR86
W50K
SW42A
PS-42E85L
2
SW42B
PS-42E85L
5
SW43A
PS-42E85L
2
SW43B
PS-42E85L
5
AUX-POST
VR94
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR69
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR77
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR85
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR93
W50K
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
A
84
+VCC
U1C
4580M
-VCC
1 2 3 4 5 6 7 8 9 10 11 12
C197
100n
C198
100n
U2C
4580M
VER021028
31of
A
C199
100n
84
C200
100n
U3C
4580M
C201
100n
84
C202
100n
U4C
4580M
C203
100n
84
C204
100n
U36C
4580M
C285
100n
84
C286
100n
U37C
4580M
C287
100n
84
C288
100n
U38C
4580M
C289
100n
84
C290
100n
U39C
4580M
C291
100n
84
C292
100n
U40C
4580M
C293
100n
84
C294
100n
U41C
4580M
C295
100n
84
C296
100n
U42C
4580M
C297
100n
84
C298
100n
U43C
4580M
C299
100n
84
C300
100n
U44C
4580M
C301
100n
84
C302
100n
U45C
4580M
C303
100n
84
C304
100n
U46C
4580M
C305
100n
84
C306
100n
U47C
4580M
C307
100n
84
C308
100n
Titel
Size
A1
Date:
File:
S16 CONTROL ROOM & DISPLAY
S16CTR.SCH
CH9~CH16 & MAIN OUTPUT
S16MN1-2.SCH
MAIN INPUT STAGE
PCB# S12MN1.PCB
ALTO S-16
2003.02.22
S16MN1.Sch
Sheet
Drawn By:
RevisionModel No:
KEVIN LIN.
1110987654321
12
VR29A
EQ HI (12KHz)
B50K
R69
10K
C333
PRE-CH9
PRE-CH9
D
PRE-CH10
PRE-CH11
C
PRE-CH12
B
PRE-CH13
PRE-CH14
A
C80
47u/25V
PRE-CH10
C81
47u/25V
PRE-CH11
C84
47u/25V
PRE-CH12
C85
47u/25V
PRE-CH13
C86
47u/25V
PRE-CH14
C87
47u/25V
+VCC
-VCC
1 2 3 4 5 6 7 8 9 10 11 12
220K
R483
1K8
C317
12n(M)
220K
R484
1K8
C319
12n(M)
220K
R497
1K8
C320
12n(M)
220K
R505
1K8
C322
12n(M)
220K
R506
1K8
C323
12n(M)
220K
R513
1K8
C324
12n(M)
+VCC
-VCC
R515
R516
R519
R520
R521
R522
U48C
4580M
84
1n(M)
C325
12n(M)
C334
1n(M)
C326
12n(M)
C337
1n(M)
C329
12n(M)
C338
1n(M)
C330
12n(M)
C339
1n(M)
C331
12n(M)
C340
1n(M)
C332
12n(M)
R70
10K
R74
10K
R75
10K
R76
10K
R77
10K
R523
22K
R524
22K
R527
22K
R528
22K
R529
22K
R530
22K
C309
100n
C310
100n
U53C
4580M
VR29B
B50K
VR36A
B50K
VR36B
B50K
VR43A
B50K
VR43B
B50K
84
VR101A
B50K
VR101B
B50K
VR102A
B50K
VR102B
B50K
VR103A
B50K
VR103B
B50K
C375
100n
C376
100n
MID-LO(500Hz)
R485
1K8
EQ HI (12KHz)
MID-LO(500Hz)
R498
1K8
EQ HI (12KHz)
MID-LO(500Hz)
R499
1K8
EQ HI (12KHz)
MID-LO(500Hz)
R507
1K8
EQ HI (12KHz)
MID-LO(500Hz)
R508
1K8
EQ HI (12KHz)
MID-LO(500Hz)
R514
1K8
84
U49C
4580M
2
3
2
3
2
3
2
3
2
3
2
3
C311
100n
C312
100n
U52C
4580M
C112
22P
R475
200K
1
U5A
4580M
LO(80Hz)
C113
22P
R476
200K
1
U48A
4580M
LO(80Hz)
C120
22P
R479
200K
1
U7A
4580M
LO(80Hz)
C121
22P
R480
200K
1
U49A
4580M
LO(80Hz)
C124
22P
R481
200K
1
U9A
4580M
LO(80Hz)
C125
22P
R482
200K
1
U50A
4580M
LO(80Hz)
C313
100n
84
U50C
4580M
C314
100n
C373
100n
84
U13C
4580M
C374
100n
R486
1K8
R435
6K8
VR31A
B50K
R487
1K8
R436
6K8
VR31B
B50K
R500
1K8
R443
6K8
VR38A
B50K
R501
1K8
R445
6K8
VR38B
B50K
R509
1K8
R446
6K8
VR45A
B50K
R510
1K8
R449
6K8
VR45B
B50K
84
R399
1M
R400
1M
R407
1M
R408
1M
R411
1M
R414
1M
C223
100n
C224
100n
12K
12K
12K
12K
12K
12K
U51C
4580M
R467
R468
R471
R472
R473
R474
84
C341
3.3n(M)
VR30A
B50K
HI-MID(3KHz)
C349
3.3n(M)
R419
47K
C342
3.3n(M)
VR30B
B50K
HI-MID(3KHz)
C350
3.3n(M)
R420
47K
C345
3.3n(M)
VR37A
B50K
HI-MID(3KHz)
C353
3.3n(M)
R423
47K
C346
3.3n(M)
VR37B
B50K
HI-MID(3KHz)
C354
3.3n(M)
R424
47K
C347
3.3n(M)
VR44A
B50K
HI-MID(3KHz)
C355
3.3n(M)
R425
47K
C348
3.3n(M)
VR44B
B50K
HI-MID(3KHz)
C356
3.3n(M)
R426
47K
C315
100n
C316
100n
84
U14C
4580M
1K8
R437
6K8
C357
47n(M)
1K8
R438
6K8
C359
47n(M)
1K8
R444
6K8
C360
47n(M)
1K8
R447
6K8
C362
47n(M)
1K8
R448
6K8
C363
47n(M)
1K8
R450
6K8
C364
47n(M)
C225
100n
C226
100n
R488
R489
R502
R503
R511
R512
R401
6
5
R402
6
5
R409
6
5
R410
6
5
R412
6
5
R413
6
5
1M
1M
1M
1M
1M
1M
U5C
4580M
U15C
4580M
LD14
SW15D
YEL
10
12
(LOGIC=2.0V or 0.5V)
10
12
(LOGIC=2.0V or 0.5V)
10
12
(LOGIC=2.0V or 0.5V)
C207
100n
C208
100n
C229
100n
C230
100n
R145
47K
LD17
YEL
R147
47K
LD20
YEL
R149
47K
U7C
4580M
U17C
4580M
D3
BAS316
R155
4K7
D5
BAS316
R157
4K7
D7
BAS316
R159
4K7
84
84
(SOLO)
LOGIC
2.2u/50V
(SOLO)
LOGIC
2.2u/50V
(SOLO)
LOGIC
2.2u/50V
C209
100n
C210
100n
C231
100n
C232
100n
VR35B
10KD
LEVEL
VR35A
10KD
LEVEL
C145
VR42B
10KD
LEVEL
VR42A
10KD
LEVEL
C147
VR49B
10KD
LEVEL
VR49A
10KD
LEVEL
C149
-VCC
R83
2K2
LOGIC
R190
5K1
R191
5K1
+VCC
R177
1K5
R32
6K8
TR4
BR
TR3
BR
PGND
-VCC
R85
2K2
LOGIC
R203
5K1
R204
5K1
+VCC
R179
R40
1K5
6K8
TR8
BR
TR7
BR
PGND
-VCC
R88
2K2
LOGIC
R214
5K1
R215
5K1
+VCC
R181
R50
1K5
6K8
TR12
BR
TR11
BR
PGND
C211
100n
84
U8C
4580M
U18C
4580M
4580M
C212
100n
C233
100n
84
4580M
C234
100n
PS-42E85L
11
C114
22P
7
C6
U5B
47u/25V
4580M
R94
10K
R95
10K
C115
22P
7
C8
U48B
47u/25V
4580M
SW18D
PS-42E85L
11
C122
22P
7
C19
U7B
47u/25V
4580M
R104
10K
R105
10K
C123
22P
7
C21
U49B
47u/25V
4580M
SW21D
PS-42E85L
11
C126
22P
7
C31
U9B
47u/25V
4580M
R114
10K
R115
10K
C127
22P
7
C33
U50B
47u/25V
4580M
C205
100n
C206
100n
C227
100n
C228
100n
U6C
4580M
U16C
4580M
84
84
84
84
LD15
RED
PEAK
LD18
RED
PEAK
LD21
RED
PEAK
U9C
U19C
C158
22P
R254
18K
U6B
U8B
U10B
U6A
4580M
C159
22P
C164
22P
U8A
4580M
C165
22P
C166
22P
U10A
4580M
C172
22P
U10C
4580M
U20C
4580M
R96
5K1
R106
5K1
R116
5K1
1
R251
18K
7
R258
18K
1
R257
18K
7
R261
18K
1
R260
18K
7
84
84
C10
47u/25V
R97
10K
C9
47u/25V
SW14C
PS-42E85L
8
SW15C
PS-42E85L
8
SW13A
PS-22E85L
2
SW13B
PS-22E85L
5
AUX1 PRE/POST
C23
47u/25V
R107
10K
C22
47u/25V
SW17C
PS-42E85L
8
SW18C
PS-42E85L
8
SW16A
PS-22E85L
2
SW16B
PS-22E85L
5
AUX1 PRE/POST
C35
47u/25V
R117
10K
C34
47u/25V
SW20C
PS-42E85L
8
SW21C
PS-42E85L
8
SW19A
PS-22E85L
2
SW19B
PS-22E85L
5
AUX1 PRE/POST
C217
100n
C218
100n
C237
100n
C238
100n
R98
R108
R118
10K
10K
10K
7
9
7
9
7
9
7
9
7
9
7
9
U11C
4580M
U21C
4580M
VR34A
JQ10K
VR34B
JQ10K
1
3
4
6
VR41A
JQ10K
VR41B
JQ10K
1
3
4
6
VR48A
JQ10K
VR48B
JQ10K
1
3
4
6
C219
100n
84
C220
100n
C239
100n
84
C240
100n
2
3
6
5
4580M
2
3
6
5
4580M
2
3
6
5
4580M
C215
100n
84
C216
100n
C235
100n
84
C236
100n
SW14:MUTE/ALT3-4
SW15:SOLO,PFL
SW14A
R192
PS-42E85L
2
SW14B
PS-42E85L
5
SW15A
PS-42E85L
2
SW15B
PS-42E85L
5
AUX-POST
VR33
W50K
SW17A
PS-42E85L
2
SW17B
PS-42E85L
5
SW18A
PS-42E85L
2
SW18B
PS-42E85L
5
AUX-POST
VR40
W50K
SW20A
PS-42E85L
2
SW20B
PS-42E85L
5
SW21A
PS-42E85L
2
SW21B
PS-42E85L
5
AUX-POST
VR47
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR32
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR39
W50K
1
3
4
6
1
3
4
6
AUX-PRE
VR46
W50K
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
LEFT-BUS
ALT-3
RIGHT-BUS
ALT-4
AFL-L
AFL-R
SOLO(PFL)
AUX-2
AUX-1
PRE-CH15
PRE-CH16
PRE-CH15
PRE-CH16
RIGHT-BUS
47u/25V
47u/25V
LEFT-BUS
ALT-3
ALT-4
AUX-1
AUX-2
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
C82
C83
POST
(PRE)
POST
(PRE)
POST
(PRE)
J5
J6
J7
U12C
4580M
U22C
4580M
84
84
5K1
R193
5K1
R270
27K
R271
27K
R194
5K1
R195
5K1
SW17:MUTE/ALT3-4
SW18:SOLO,PFL
R205
5K1
R206
5K1
R274
27K
R275
27K
R207
5K1
R208
5K1
SW20:MUTE/ALT3-4
SW21:SOLO,PFL
R217
5K1
R218
5K1
R280
27K
R281
27K
R219
5K1
R220
5K1
C221
100n
C222
100n
C241
100n
C242
100n
BAL
BAL
BAL
R517
220K
R490
1K8
C318
12n(M)
R518
220K
R491
1K8
C321
12n(M)
C176
22P
R229
5K1
6
5
R228
5K1
2
3
C180
22P
R241
5K1
2
3
R240
5K1
2
3
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
C259
100P
C260
100P
C261
100P
C262
100P
C335
1n(M)
C327
12n(M)
C336
1n(M)
C328
12n(M)
U13B
4580M
U13A
4580M
U16A
4580M
U17A
4580M
VR50A
EQ HI (12KHz)
B50K
R71
10K
R525
22K
VR104A
B50K
VR50B
B50K
R72
10K
R526
22K
VR104B
B50K
C42
47u/25V
7
C177
22P
C41
47u/25V
1
47u/25V
1
C181
22P
47u/25V
1
C184
22P
2
3
U18A
4580M
C185
2
3
U19A
4580M
TP23
TP24
TP25
TP26
MID-LO(500Hz)
R492
1K8
EQ HI (12KHz)
MID-LO(500Hz)
R504
1K8
MAIN MIX
MAIN MIX
C50
C49
R303
36K
1
22P
R304
36K
1
C57
47u/25V
R531
C365
47u/25V
C366
47u/25V
C369
47u/25V
R537
10K
C370
47u/25V
2
3
2
3
LEFT
VR62A
10KD
RIGHT
VR63A
10KD
TP9
TP10
C58
47u/25V
10K
R533
10K
R535
10K
R73
30K
2
3
6
5
2
3
6
5
C116
22P
R477
200K
U11A
4580M
C117
22P
R478
200K
U51A
4580M
R230
5K1
R231
5K1
ALT 3-4
(ALT-3)
R296
30K
TP11
TP12
C367
22p
1
VR52A
LO(80Hz)
1
VR52B
LO(80Hz)
2
3
2
3
47u/25V
47u/25V
AUX1 SEND
R297
30K
AUX2 SEND
R298
30K
R532
12K
1
U52A
4580M
C368
22P
R534
12K
7
U52B
4580M
C371
22P
R536
12K
1
U53A
4580M
C372
22P
R538
12K
7
U53B
4580M
R493
1K8
R439
6K8
B50K
R494
1K8
R440
6K8
B50K
C51
C52
VR59B
W50K
VR59A
W50K
R403
1M
R404
1M
4580M
C178
22P
4580M
R469
12K
R470
12K
C179
22P
R265
18K
1
U14A
R264
18K
1
U15A
R299
3K6
U16B
4580M
R300
3K6
U17B
4580M
C59
47u/25V
VR60
W50K
C60
47u/25V
VR61
W50K
AUX RETURN 1
C45
47u/25V
C46
47u/25V
AUX RETURN 2
C53
47u/25V
C54
47u/25V
C343
3.3n(M)
VR51A
B50K
HI-MID(3KHz)
C351
3.3n(M)
R421
47K
C344
3.3n(M)
VR51B
B50K
HI-MID(3KHz)
C352
3.3n(M)
R422
47K
R232
5K1
R233
5K1
6
5
6
5
R162
3K6
R163
3K6
R131
10K
R288
22K
R130
10K
R289
22K
R133
10K
R290
22K
R134
10K
R291
22K
R441
6K8
C358
47n(M)
R442
6K8
C361
47n(M)
C182
22P
6
5
6
5
VR58A
W50K
VR58B
W50K
VR57A
W50K
VR57B
W50K
1K8
1K8
C183
R495
R496
22P
4580M
4580M
U18B
U19B
C251
22P
6
5
C252
22P
6
5
R302
36K
7
47u/25V
R301
36K
7
47u/25V
R405
6
5
R406
6
5
C186
22P
1M
1M
C254
C256
C187
C118
22P
7
C37
U11B
47u/25V
4580M
C119
22P
7
C39
U51B
47u/25V
4580M
R234
5K1
7
U14B
47u/25V
4580M
R235
5K1
7
U15B
47u/25V
4580M
R307
5K6
R375
10K
R308
5K6
R376
10K
22P
R306
36K
7
C61
R136
47u/25V
10K
R305
36K
7
C62
R135
47u/25V
10K
C263
22P
2
3
U20A
4580M
C264
22P
6
5
U20B
4580M
C265
22P
2
3
U21A
4580M
C266
22P
6
5
U21B
4580M
SW24D
PS-42E85L
11
R122
10K
R123
10K
C43
47u/25V
R128
10K
C253
R129
10K
C44
47u/25V
R127
10K
C255
R132
10K
ALT 3/4 OUT
SW27A
PS-22E85L
(ALT3/4 TO MIX)
SW27B
PS-22E85L
AUX-SEND1
AUX-SEND2
R292
56K
1
C47
47u/25V
R293
56K
7
C48
47u/25V
R294
56K
1
C55
47u/25V
R295
56K
7
C56
47u/25V
LD23
YEL
(SOLO)
10
LOGIC
12
D9
BAS316
(LOGIC=2.0V or 0.5V)
C151
2.2u/50V
R161
4K7
R151
47K
MAIN OUT
(BALANCED)
MAIN-L-2
LEFT
MAIN-L-3
MAIN-R-2
RIGHT
MAIN-R-3
ALT3-L
LEFT-BUS
RIGHT-BUS
ALT4-R
AUX-SEND1
AUX-SEND2
R236
5K1
R237
5K1
EFX TO AUX1
PS-22E85L
R309
20K
PS-22E85L
R310
20K
VR56B
10KD
LEVEL
VR56A
10KD
LEVEL
MAIN-L-2
MAIN-L-3
MAIN-R-2
MAIN-R-3
SW25A
SW25B
R238
LD24
RED
PEAK
2
3
6
5
2TK-IN-L
2TK-IN-R
LEFT-BUS
RIGHT-BUS
AUX-1
AUX-1
U12B
4580M
C173
22P
U12A
4580M
C175
22P
R262
18K
1
R263
18K
7
R124
5K1
2TK-IN-L
2TK-IN-R
C36
47u/25V
R125
10K
C40
47u/25V
SW23C
PS-42E85L
8
SW24C
PS-42E85L
8
SW22A
PS-22E85L
2
SW22B
PS-22E85L
5
AUX1 PRE/POST
47u/25V
47u/25V
C63
C267
100P
C64
C268
R126
10K
100P
SW23:MUTE/ALT3-4
SW23:SOLO,PFL
R224
J8
POST
(PRE)
C188
22P
4580M
C189
22P
4580M
R286
510R
SW23D
PS-42E85L
11
SW20D
PS-42E85L
11
SW17D
PS-42E85L
11
SW14D
PS-42E85L
11
SW42D
PS-42E85L
11
SW39D
PS-42E85L
11
SW36D
PS-42E85L
11
SW33D
PS-42E85L
11
SW11D
PS-42E85L
11
SW8D
PS-42E85L
11
SW5D
PS-42E85L
11
SW2D
PS-42E85L
11
U22B
U22A
Titel
Size
Date:
File:
10
12
10
12
10
12
10
12
10
12
10
12
10
12
10
12
10
12
10
12
10
12
10
12
A1
5K1
R225
5K1
R282
27K
R283
27K
47u/25V
7
47u/25V
1
BAL
VR55A
JQ10K
VR55B
JQ10K
7
9
7
9
1
3
4
6
2TK TO CR-L
R314
20K
6
R311
5
20K
2TK TO CR-R
R313
20K
2
R312
3
20K
CR-A
-VCC
R90
2K2
LOGIC
R216
5K1
R223
5K1
+VCC
R183
R56
1K5
6K8
TR18
BR
TR17
BR
PGND
LEFT-BUS
RIGHT-BUS
R239
5K1
5K1
R326
43K
R325
43K
S16MN1 (2/3)
SW23A
PS-42E85L
1
LEFT-BUS
2
3
AUX-POST
VR54
W50K
PS-22E85L
PS-22E85L
CH/15/16
CH13/14
CH11/12
CH9/10
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
ALTO S-16
4
RIGHT-BUS
6
1
3
4
6
SOLO(PFL)
AUX-PRE
VR53
W50K
2TK TO MIX
SW28A
SW28B
ALT-3
ALT-4
AFL-L
AFL-R
AUX-2
AUX-1
Sheet
Drawn By:
SW23B
PS-42E85L
5
SW24A
PS-42E85L
2
SW24B
PS-42E85L
5
R226
5K1
R227
5K1
C65
R242
5K1
R137
10K
C66
R243
5K1
R138
10K
+VCC
R287
120R 1/4W
TR19
HR
LD22
RED
LD19
RED
LD16
RED
LD13
RED
LD63
RED
LD60
RED
LD57
RED
LD54
RED
(MUTE/ALT3-4)
LD10
RED
LD7
RED
LD4
RED
LD1
RED
(MUTE/ALT3-4)
-VCC
MAIN INPUT STAGE (CH9-CH16 & OUTPUT)
PCB# S16MN1.PCB
22-Sep-2003
S16MN1-2.Sch
LEFT-BUS
RIGHT-BUS
RevisionModel No:
KEVIN LIN.
VER021028
32of
D
C
B
A
7654321
8
C190
22P
R139
6K2
2
3
C191
22P
R284
15K
6
5
C192
22P
R285
15K
6
5
4580M
AFL-L
AFL-R
SOLO(PFL)
AFL-L
AFL-R
SOLO(PFL)
D
PS-42E85L
+VCC
+VCC
R336
C
LOGIC
LOGIC
R339
15K
100K
R341
220K
R340
15K
R142
10K
R141
10K
3
2
U25A
U25B
4580M
U26B
4580M
SW26A
2
U26A
4580M
C269
100n
C67
47u/25V
1
C68
47u/25V
7
C70
47u/25V
7
1
3
1
LD27
LD26
D11
BAS316
D12
BAS316
YEL
RED
R316
20K
R320
20K
11
R315
20K
PFL
SOLO
ACTIVE
R246
5K1
SW26D
PS-42E85L
SW26B
PS-42E85L
4
6
**SW26:S OLO MODE
SW26C
PS-42E85L
7
9
R247
5K1
R321
20K
10
12
5
8
PFL-IN-L
PFL-IN-R
SW-FET
C270
2.2u/50V
PFL-IN-L
PFL-IN-R
SW-FET
MAIN-L-2
ALT3-L
2TK TO CR-L
MAIN-R-2
ALT4-R
2TK TO CR-R
CTRL ROOM SOURCE
SW29A
R327
PS-22E85L
20K
MAIN MIX
SW30A
R317
PS-22E85L
20K
ALT-3
SW31A
R318
PS-22E85L
20K
2TK
SW29B
R329
PS-22E85L
20K
MAIN MIX
SW30B
R322
PS-22E85L
20K
ALT-4
SW31B
R323
PS-22E85L
20K
2TK
SW-FET
SW-FET
SW-FET
SW-FET
R337
100K
SW-FET
R244
5K1
SW-FET
SW-FET
R248
5K1
SW-FET
TR20
J112
R328
R331
TR22
J112
R333
12K
100K
R330
12K
100K
PFL-IN-L
TR21
J112
PFL-IN-R
TR23
J112
TR24
J112
C193
22P
R319
20K
2
3
C196
22P
R324
20K
2
3
U23A
4580M
PFL-IN-L
L-METER
U24A
4580M
PFL-IN-R
R-METER
C69
47u/25V
1
C71
47u/25V
1
R335
100K
R152
47K
R338
100K
R153
47K
CTRL ROOM
R140
120R
CTRL ROOM
R143
120R
LEFT
R332
62K
VR64B
10KD
RIGHT
R334
62K
VR64A
10KD
R245
5K1
R249
5K1
C194
22P
R266
18K
6
5
6
5
U23B
4580M
C195
22P
U24B
4580M
7
R267
18K
7
CTRL-R-L
CTRL-R-R
CTRL-R-L
CTRL-R-R
S16MN1 (3/3)
D
C
R360
330R
U32A
PGNDPGND
9
11
R349
10K
14
13
LEFT METER
U32C
LM339
7
8
R358
470R
10
U32D
LM339
U27C
4580M
(+4) (+7) (+10) (+18)
LD33GRLD32GRLD31
GR
1
U33B
LM339
6
9
R361
510R
4
5
U33A
LM339
2
84
14
11
13
U30E
LM339
U33C
LM339
8
R362
620R
10
U33D
LM339
GR
312
7
5
LM339
1
2
U31E
LM339
6
312
U34B
R363
1K3
4
U34A
LM339
LD45GRLD44GRLD43
9
11
LM339
14
13
U32E
U34C
LM339
8
10
U34D
LM339
312
1
7
R3642KR365
5
2
U33E
LM339
YEL
U35B
LM339
6
5K6
4
U35A
LM339
YEL
312
14
9
11
U34E
LM339
8
13
312
LD30
RED
U35C
LM339
R366
82K
10
U35D
LM339
LD42
RED
-VCC
+VCC
-VCC
312
U35E
LM339
R252
2K
LD29
GR
PWR ON
R253
4K7
LD28
RED
PHANTOM
C213
R373
100n
PGND
C214
R374
100n
47R
47R
+VCC
PGND
PH PWR
PGND
+VCC
-VCC
C257
47u/25V
C258
47u/25V
RTN-CH2
RTN-CH3
RTN-CH4
RTN-CH5
RTN-CH6
RTN-CH7
RTN-CH8
RTN-CH1
RTN-CH2
RTN-CH3
RTN-CH4
RTN-CH5
RTN-CH6
RTN-CH7
RTN-CH8
CN2
2.5-12P
(TO S16PU2)
1
2
3
4
5
6
7
8
9
10
11
12
+VCC
-VCC
PRE-CH9
PRE-CH10
PRE-CH11
PRE-CH12
PRE-CH13
PRE-CH14
PRE-CH15
PRE-CH16
84
U23C
4580M
PRE-CH9
PRE-CH10
PRE-CH11
PRE-CH12
PRE-CH13
PRE-CH14
PRE-CH15
PRE-CH16
C243
100n
C244
100n
84
U24C
4580M
(-30) (-20) (-10) (-7) (-4) (-2) (0) (+2)
LD41GRLD40GRLD39GRLD38GRLD37GRLD36GRLD35GRLD34
11
14
13
U30C
LM339
8
R356
470R
10
U30D
LM339
1
U31B
LM339
6
7
9
R359
330R
4
5
U31A
LM339
2
1
U31C
14
11
LM339
8
10
LM339
13
R357
470R
U31D
U32B
LM339
6
7
4
5
LM339
2
R354
56R
1
U30B
LM339
6
7
9
R355
120R
4
5
U30A
LM339
2
LD53GRLD52GRLD51GRLD50GRLD49GRLD48GRLD47GRLD46
D14A
DA204K
DA204K
PGND
R348
10K
6
5
U27B
4580M
R345
100K
7
47u/25V
D14B
C272
R347
0R0
PGND
PGND
10K
R87
TR13
HR
TR14
HR
2
3
R351
510R
CR-A
R352
510R
DA204K
DA204K
R344
100K
D13A
U27A
4580M
PGND
1
47u/25V
D13B
C271
R346
0R0
+VCC
R350
120R 1/4W
D1A
B
L-METER
A
R-METER
1 2 3 4 5 6 78
D1B
DA204K
DA204K
R353
120R 1/4W
R343
36K
R342
36K
+VCC-VCCPH PWR
CN3
2.5-12P
(TO S16MN1)
1
2
3
4
5
6
7
8
9
10
11
12
C245
100n
C246
100n
ALT3-LRTN-CH1
ALT4-R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
84
U25C
4580M
PGND
+VCC
-VCC
C247
100n
C248
100n
CN1
2.5-6P
1
2
3
4
5
6
ALT3-L
ALT4-R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
+VCC
-VCC
4580M
PH PWR
U26C
CN4
2.5-12P
(TO S16MN1)
AUX-RTN1-L
1
AUX-RTN1-R
2
AUX-RTN2-L
3
AUX-RTN2-R
4
5
AUX-SEND1
6
AUX-SEND2
7
CTRL-R-L
8
CTRL-R-R
9
10
11
12
C249
100n
84
C250
100n
Titel
Size
A2
22-Sep-2003
Date:
S16CTR.Sch
File:
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
AUX-SEND1
AUX-SEND2
CTRL-R-L
CTRL-R-R
2TK-IN-L
2TK-IN-L
2TK-IN-R
2TK-IN-R
CONTROL ROOM STAGE
ALTO S-12
(TO S16MN1)
Sheet
Drawn By:
CN5
2.5-12P
1
2
3
4
5
6
7
8
9
10
11
12
RevisionModel No:
VER021028
33of
KEVIN LIN.
B
A
D
C
B
A
1110987654321
S16PU2 (1/2)
PH PWR
R1
6K81
R46
MIC 1
LINE IN1
MIC 2
LINE IN2
MIC 3
LINE IN3
1
3
2
4
X1
JY-5042-030G
3c
4d
2b
1a
5e
X2
JY-6351G-02-250
MIC GAIN=0~-60dB
LINE IN GAIN=-15~-40dB
1
3
2
4
X3
JY-5042-030G
3c
4d
2b
1a
5e
X4
JY-6351G-02-250
1
3
2
4
X5
JY-5042-030G
3c
4d
2b
1a
5e
X6
JY-6351G-02-250
4R7
R47
4R7
R
RN
TN
T
S
C27
22u/35V
R3
6K81
R48
4R7
R49
4R7
R
RN
TN
T
S
C29
22u/35V
R5
6K81
R50
4R7
R51
4R7
R
RN
TN
T
S
C31
22u/35V
6K81
R52
R
RN
TN
T
S
C120
100N
C122
100N
C121
100N
C123
100N
4R7
R53
4R7
C33
22u/35V
1
MIC 4
JY-5042-030G
LINE IN4
JY-6351G-02-250
1 2 3 4 5 6 7 8 9 10 11 12
3
2
4
X7
3c
4d
2b
1a
5e
X8
+VCC
-VCC
C21
330P
C26
22u/35V
PH PWR
C22
330P
C28
22u/35V
PH PWR
C23
330P
C30
22u/35V
PH PWR
R7
C24
330P
C32
22u/35V
C124
100N
C132
100N
C125
100N
C133
100N
R2
6K81
C12
47u/63V
6K34
R94
6K34
R4
6K81
C14
47u/63V
6K34
R96
6K34
R6
6K81
C16
47u/63V
6K34
R98
6K34
R8
6K81
C18
47u/63V
6K34
R100
6K34
C126
100N
C134
100N
R93
1K50
R95
1K50
R97
1K50
R99
1K50
R101
R103
R105
R107
C11
47u/63V
C13
47u/63V
C15
47u/63V
C17
47u/63V
C127
100N
C135
100N
C128
100N
C136
100N
-VCC
-VCC
-VCC
-VCC
C1
10N
R61
20K
C34
1n
2K49
C2
10N
R62
20K
C35
1n
2K49
C3
10N
R63
20K
C36
1n
R16
2K49
C4
10N
R64
20K
C37
1n
R18
2K49
C129
100N
C137
100N
R12
R14
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
R11
2K49
TR1
HR
R83
470R
TR16
A1316
R102
1K50
R13
2K49
TR2
HR
R84
470R
TR17
A1316
R104
1K50
R15
2K49
TR3
HR
R85
470R
TR18
A1316
R106
1K50
R17
2K49
TR4
HR
R86
470R
TR19
A1316
R108
1K50
4580M
U1C
+VCC
C5
10N
R87
470R
TR20
A1316
C38
1n
-VCC
+VCC
C6
10N
R88
470R
TR21
A1316
C39
1n
-VCC
+VCC
C7
10N
R89
470R
TR22
A1316
C40
1n
-VCC
+VCC
C8
10N
R90
470R
TR23
A1316
C41
1n
-VCC
84
84
U2C
4580M
R20
2K49
TR6
HR
R23
2K49
R25
2K49
TR8
HR
R28
2K49
R30
2K49
TR10
HR
R33
2K49
R35
2K49
TR12
HR
R38
2K49
1000u/10V
1000u/10V
1000u/10V
1000u/10V
84
U3C
4580M
C44
C45
C46
C47
+VCC
VR1
O10K
R54
4R7
+VCC
VR2
O10K
R55
4R7
+VCC
VR3
O10K
R56
4R7
+VCC
VR4
O10K
R57
4R7
BAS316
BAS316
BAS316
BAS316
U4C
4580M
2K49
2K49
2K49
R34
2K49
84
R19
D1
R24
D2
R29
D3
D4
84
U5C
4580M
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
R21
2K49
TR5
HR
R22
2K49
R26
2K49
TR7
HR
R27
2K49
R31
2K49
TR9
HR
R32
2K49
R36
2K49
TR11
HR
R37
2K49
84
U6C
4580M
3
2
22P
5
6
3
2
22P
5
6
3
2
22P
5
6
3
2
22P
5
6
C51
C52
22P
4580M
C55
C56
22P
4580M
C59
C60
22P
C63
C64
22P
U1A
4580M
R126
5K11
U3A
R130
5K11
U5A
R134
5K11
U7A
4580M
R138
5K11
R137
84
U7C
4580M
R125
5K11
U1B
4580M
R129
5K11
U3B
4580M
R133
5K11
U5B
4580M
5K11
U7B
4580M
1
7
1
7
1
7
1
7
4580M
C49
22P
R123
5K11
R143
10K0
R144
10K0
C53
22P
R127
5K11
R145
10K0
R146
10K0
C88
0.22u/50V
C57
22P
R131
5K11
R147
10K0
R148
10K0
C90
0.22u/50V
C61
22P
R135
5K11
R149
10K0
R150
10K0
C92
0.22u/50V
84
U8C
3
2
R153
1K3
C86
0.22u/50V
R157
62K
3
2
R154
1K3
R158
62K
3
2
R155
1K3
R159
62K
3
2
R156
1K3
R160
62K
U2A
4580M
C50
22P
5K11
C85
0.22u/50V
6
5
U4A
4580M
C54
22P
5K11
C87
0.22u/50V
6
5
U6A
4580M
C58
22P
5K11
C89
0.22u/50V
6
5
U8A
4580M
C62
22P
5K11
C91
0.22u/50V
6
5
+VCC
-VCC
R124
R128
R132
R136
1
U2B
4580M
1
U4B
4580M
1
U6B
4580M
1
U8B
4580M
C229
100N
100N
C99
47u/25V
0.22u/50V
C101
47u/25V
0.22u/50V
C103
47u/25V
0.22u/50V
C105
47u/25V
0.22u/50V
C230
R65
C93
R199
6K8
7
R67
C94
R200
6K8
7
C95
R201
6K8
7
C96
R202
6K8
7
20K
C100
47u/25V
20K
C102
47u/25V
R69
20K
C104
47u/25V
R71
20K
C106
47u/25V
C231
100N
C232
100N
C233
100N
C234
100N
20K
20K
20K
R66
20K
R68
R70
R72
C235
100N
C236
100N
LO CUT
SW1A
PS-22E85L
SW1B
PS-22E85L
LO CUT
SW2A
PS-22E85L
SW2B
PS-22E85L
LO CUT
SW3A
PS-22E85L
SW3B
PS-22E85L
LO CUT
SW4A
PS-22E85L
SW4B
PS-22E85L
C237
100N
C238
100N
C239
100N
C240
100N
TP1
TP2
TP3
TP4
C241
100N
C242
100N
INS-CH1
INS-CH2
INS-CH3
INS-CH4
C243
100N
100N
C244
MIC 5
LINE IN5
MIC 6
LINE IN6
MIC 7
LINE IN7
MIC 8
LINE IN8
84
U16C
4580M
1
3
2
4
X28
JY-5042-030G
3c
4d
2b
1a
5e
X29
JY-6351G-02-250
MIC GAIN=-10~-60dB
LINE IN GAIN=+10~-40dB
1
3
2
4
X30
JY-5042-030G
3c
4d
2b
1a
5e
X31
JY-6351G-02-250
1
3
2
4
X32
JY-5042-030G
3c
4d
2b
1a
5e
X33
JY-6351G-02-250
1
3
2
4
X34
JY-5042-030G
3c
4d
2b
1a
5e
X35
JY-6351G-02-250
84
84
U17C
U18C
4580M
4580M
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
U19C
4580M
PH PWR
R73
6K81
R9
4R7
R10
4R7
C9
22u/35V
R91
6K81
R40
4R7
R42
4R7
C19
22u/35V
R92
6K81
R41
4R7
R45
4R7
C25
22u/35V
R139
6K81
R44
4R7
R58
4R7
C43
22u/35V
84
84
U20C
4580M
C69
330P
C10
22u/35V
PH PWR
C70
330P
C20
22u/35V
PH PWR
C75
330P
C42
22u/35V
PH PWR
C76
330P
C48
22u/35V
47u/63V
R141
6K34
47u/63V
R151
6K34
47u/63V
R172
6K34
47u/63V
R181
6K34
84
U21C
4580M
6K81
C113
C115
6K81
C170
6K81
C171
R76
R142
6K34
R109
6K81
R152
6K34
R110
R175
6K34
R140
R182
6K34
C114
47u/63V
R213
1K50
C168
47u/63V
R215
1K50
C169
47u/63V
R217
1K50
C172
47u/63V
R219
1K50
84
U22C
4580M
-VCC
-VCC
-VCC
-VCC
U23C
4580M
C173
10N
R221
20K
C181
1n
R233
2K49
C175
10N
R224
20K
C183
1n
R240
2K49
C176
10N
R227
20K
C185
1n
R251
2K49
C179
10N
R228
20K
C187
1n
R258
2K49
84
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
R234
2K49
TR29
HR
R261
470R
TR13
A1316
R214
1K50
R241
2K49
TR32
HR
R263
470R
TR15
A1316
R216
1K50
R242
2K49
TR35
HR
R265
470R
TR25
A1316
R218
1K50
R252
2K49
TR36
HR
R266
470R
TR27
A1316
R220
1K50
C174
10N
R262
470R
TR14
A1316
C177
10N
R264
470R
TR24
A1316
C178
10N
R267
470R
TR26
A1316
C180
10N
R268
470R
TR28
A1316
C182
1n
C184
1n
C186
1n
C188
1n
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
TR30
HR
R235
2K49
TR33
HR
R243
2K49
TR37
HR
R253
2K49
TR38
HR
R259
2K49
R236
2K49
R244
2K49
R245
2K49
R254
2K49
+VCC
C189
1000u/10V
VR5
O10K
R39
4R7
+VCC
C190
1000u/10V
VR6
O10K
R43
4R7
+VCC
C191
1000u/10V
VR7
O10K
R59
4R7
+VCC
C192
1000u/10V
VR8
O10K
R60
4R7
R237
2K49
D5
BAS316
R247
2K49
D6
BAS316
R246
2K49
D7
BAS316
R255
2K49
D8
BAS316
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
+VCC
-VCC
R238
2K49
TR31
HR
R239
2K49
R249
2K49
TR34
HR
R248
2K49
R250
2K49
TR39
HR
R256
2K49
R257
2K49
TR40
HR
R260
2K49
3
2
C193
22P
5
6
4580M
3
2
C197
22P
5
6
4580M
3
2
C202
22P
5
6
3
2
C203
22P
5
6
U16A
4580M
C194
22P
U18A
C198
22P
U20A
C204
22P
U22A
4580M
C208
22P
R269
5K11
R273
5K11
R277
5K11
R284
5K11
R270
5K11
4580M
R274
5K11
4580M
R279
5K11
4580M
R278
5K11
4580M
U16B
U18B
U20B
U22B
1
7
1
7
1
7
1
7
C195
22P
R271
5K11
R285
10K0
R286
10K0
C199
22P
R275
5K11
R288
10K0
R287
10K0
C212
0.22u/50V
C200
22P
R280
5K11
R290
10K0
R291
10K0
C215
0.22u/50V
C205
22P
R281
5K11
R289
10K0
R292
10K0
C218
0.22u/50V
3
2
R297
1K3
C209
0.22u/50V
R293
62K
3
2
R298
1K3
R294
62K
3
2
R299
1K3
R295
62K
3
2
R300
1K3
R296
62K
S16PU2-2
S16PU2-2.SCH
Titel
Size
A2(C)
Date:
File:
U17A
4580M
C221
47u/25V
1
C196
22P
R272
5K11
C210
0.22u/50V
6
5
U17B
4580M
U19A
4580M
0.22u/50V
4580M
0.22u/50V
0.22u/50V
C223
47u/25V
1
C201
22P
R276
5K11
C213
6
5
U19B
4580M
U21A
C224
47u/25V
1
C206
22P
R282
5K11
C216
6
5
U21B
4580M
U23A
4580M
C226
47u/25V
1
C207
22P
R283
5K11
C219
6
5
U23B
4580M
INPUT STAGE ( C H1 -C H8 )
PCB# S16PU2.PCB
22-Sep-2003
S16PU2.Sch
R222
20K
C211
0.22u/50V
R301
6K8
47u/25V
7
R225
20K
C214
0.22u/50V
R302
6K8
47u/25V
7
R230
20K
C217
0.22u/50V
R303
6K8
47u/25V
7
R229
20K
C220
0.22u/50V
R304
6K8
47u/25V
7
ALTO S-16
C222
C225
C227
C228
R223
20K
R226
20K
R231
20K
R232
20K
LO CUT
SW9A
PS-22E85L
SW9B
PS-22E85L
LO CUT
SW10A
PS-22E85L
SW10B
PS-22E85L
LO CUT
SW11A
PS-22E85L
SW11B
PS-22E85L
LO CUT
SW12A
PS-22E85L
SW12B
PS-22E85L
Sheet
Drawn By:
12
TP13
INS-CH5
TP14
INS-CH6
TP15
INS-CH7
TP16
INS-CH8
RevisionModel No:
KEVIN LIN.
VER021018
21of
D
C
B
A
7654321
8
R163
C152
100P
C153
100P
C154
100P
C155
100P
C160
100P
C161
100P
C162
100P
C163
100P
10K
R164
C65
22P
R165
10K
R166
C66
22P
R183
10K
R185
C78
22P
R187
R189
C80
22P
10K
10K
10K
10K
10K
R205
2K
SW5A
PS-22E85L
R206
2K
SW5B
PS-22E85L
R209
2K
SW6A
PS-22E85L
R210
2K
3c
R
4d
RN
2b
LINE IN 9
LEFT(MONO)
D
LINE IN 10
RIGHT
LINE IN 11
C
LEFT(MONO)
LINE IN 12
RIGHT
X10
JY-6351G-02-250
X11
JY-6351G-02-250
X12
JY-6351G-02-250
X13
JY-6351G-02-250
TN
1a
T
5e
S
R
3c
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
C71
22P
R171
10K
2
3
R173
10K
U11A
4580M
1
(LEVEL +4dBu/-10dBv)
C72
22P
R174
6
5
R176
10K
10K
U11B
4580M
7
(LEVEL +4dBu/-10dBv)
C77
22P
R184
10K
2
3
R186
10K
U13A
4580M
1
(LEVEL +4dBu/-10dBv)
C79
22P
R188
10K
6
5
R190
10K
U13B
4580M
7
C109
47u/25V
C110
47u/25V
C116
47u/25V
C117
47u/25V
TP7
TP8
TP9
TP10
R77
R79
20K
R78
20K
R80
20K
20K
PRE-CH9
PRE-CH10
PRE-CH11
PRE-CH12
LINE IN 13
LEFT(MONO)
LINE IN 14
RIGHT
LINE IN 15
LEFT(MONO)
LINE IN 16
RIGHT
X14
JY-6351G-02-250
X15
JY-6351G-02-250
X16
JY-6351G-02-250
X17
JY-6351G-02-250
R167
C156
100P
C157
100P
C158
100P
C159
100P
C164
100P
C165
100P
C166
100P
C167
100P
10K
R168
C67
22P
R169
R170
C68
R191
10K
R193
C82
22P
R195
R197
C84
10K
10K
10K
22P
10K
10K
10K
22P
R207
2K
SW7A
PS-22E85L
R208
2K
SW7B
PS-22E85L
R211
2K
SW8A
PS-22E85L
R212
2K
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
3c
R
4d
RN
2b
TN
1a
T
5e
S
C73
22P
R177
10K
2
3
R178
10K
U14A
4580M
1
(LEVEL +4dBu/-10dBv)
C74
22P
R179
10K
6
5
R180
10K
U14B
4580M
7
(LEVEL +4dBu/-10dBv)
C81
22P
R192
2
3
R194
10K
10K
U15A
4580M
1
(LEVEL +4dBu/-10dBv)
C83
22P
R196
10K
6
5
R198
10K
U15B
4580M
7
C111
47u/25V
C112
47u/25V
C118
47u/25V
C119
47u/25V
TP5
TP6
TP11
TP12
R74
20K
R75
R81
20K
R82
20K
20K
PRE-CH13
PRE-CH14
PRE-CH15
PRE-CH16
TAPE IN TAPE OUT
L(WHITE)
R(RED)
C97
22P
R161
10K
CTRL-R-R
C98
22P
R162
10K
CTRL-R-L
X27
SCP6873NS3232
1 4
2 5
3
2
3
U24A
BA15218N
2
3
U25A
BA15218N
R203
1K
R204
6
6
1
5
6
1
5
1K
U24B
BA15218N
U25B
BA15218N
7
7
S16PU2 (2/2)
MAIN-L-2
MAIN-R-2
2TK-IN-L
2TK-IN-R
R119
120R
R120
120R
R121
120R
R122
120R
3c
4d
2b
1a
5e
X18
JY-6351G-02-250
PHONES
D
C
CN6
9P-2.0
1
2
3
4
5
6
7
8
9
CN7
2.5-12P
1
2
3
4
5
6
7
8
9
10
11
12
SW8B
PS-22E85L
(LEVEL +4dBu/-10dBv)
ALT3-L
ALT4-R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
ALT3-L
ALT4-R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
+VCC
-VCC
PH PWR
CN2
7P-2.0
(TO S12PU1)
1
2
3
4
5
6
7
CN4
2.5-12P
(TO S16MN1)
B
C142
C144
C145
100N
CN5
100N
C147
C149
100N
100N
1
2
3
4
5
6
7
8
9
10
11
12
+VCC
-VCC
2.5-12P
1
2
3
4
5
6
7
8
9
10
11
12
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
AUX-SEND1
AUX-SEND2
CTRL-R-L
CTRL-R-R
2TK-IN-L
2TK-IN-R
(TO S16MN1)
100N
C150
100N
C146
100N
C151
100N
84
U11C
4580M
+VCC
-VCC
84
U13C
4580M
Titel
Size
Date:
File:
A2
84
U14C
4580M
R347
47R
R346
47R
84
U15C
4580M
84
84
U24C
U25C
BA15218N
BA15218N
INPUT STAGE STEREO
PCB# S16PU2.PCB
ALTO S-16
22-Sep-2003
S16PU2-2.Sch
C107
47u/25V
C108
47u/25V
C140
100N
C141
100N
Sheet
Drawn By:
RevisionModel No:
KEVIN LIN.
A
VER021018
22of
SW6B
PS-22E85L
B
STEREO AUX
RETURN1
LEFT 1
(MONO / MASTER)
JY-6351G-02-250
RIGHT 1
JY-6351G-02-250
STEREO AUX
RETURN2
LEFT 2
JY-6351G-02-250
A
RIGHT 2
JY-6351G-02-250
1 2 3 4 5 6 78
X19
X20
X21
X22
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
AUX-RTN1-L
AUX-RTN1-R
AUX-RTN2-L
AUX-RTN2-R
AUX-SEND1
AUX-SEND2
CTRL-R-L
CTRL-R-R
(LEVEL +4dBu/-10dBv)
R111
120R
R112
120R
3c
R
4d
RN
2b
TN
1a
T
5e
S
JY-6351G-02-250
R113
120R
R114
120R
3c
R
4d
RN
2b
TN
1a
T
5e
S
JY-6351G-02-250
R115
120R
R116
120R
3c
4d
2b
1a
5e
JY-6351G-02-250
R117
120R
R118
120R
3c
4d
2b
1a
5e
JY-6351G-02-250
AUX SEND1
X23
AUX SEND2
X24
CTRL ROOM OUT
LEFT
X25
RIGHT
X26
RTN-CH1
INS-CH1
RTN-CH2
INS-CH2
RTN-CH3
INS-CH3
RTN-CH4
INS-CH4
RTN-CH1
RTN-CH2
RTN-CH3
RTN-CH4
RTN-CH5
RTN-CH6
RTN-CH7
RTN-CH8
CN1
9P-2.0
(TO S16PU1)
1
2
3
4
5
6
7
8
9
CN3
2.5-12P
(TO S16MN1)
1
2
3
4
5
6
7
8
9
10
11
12
RTN-CH5
INS-CH5
RTN-CH6
INS-CH6
RTN-CH7
INS-CH7
RTN-CH8
INS-CH8
PRE-CH9
PRE-CH10
PRE-CH11
PRE-CH12
PRE-CH13
PRE-CH14
PRE-CH15
PRE-CH16
(TO S16PU1)
(TO S16MN1)
7654321
8
S16PU1
D
R3
120R
CN1
9P-2.0
1
2
3
4
5
6
7
8
9
GND-INS
C
B
RTN1
INS1
R1
120R
RTN2
INS2
R8
120R
RTN3
INS3
R9
120R
RTN4
INS4
R12
120R
GND-INS
GND-INS
GND-INS
GND-INS
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
INSERT1
X1
JY-6351G-02-250
INSERT2
X2
JY-6351G-02-250
INSERT3
X3
JY-6351G-02-250
INSERT4
X4
JY-6351G-02-250
1
2
3
4
5
6
7
8
9
GND-INS
CN3
9P-2.0
RTN5
INS5
R25
120R
RTN6
INS6
R26
120R
RTN7
INS7
R27
120R
RTN8
INS8
R28
120R
GND-INS
GND-INS
GND-INS
GND-INS
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
R
RN
TN
T
S
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
INSERT5
X11
JY-6351G-02-250
INSERT6
X12
JY-6351G-02-250
INSERT7
X13
JY-6351G-02-250
INSERT8
X14
JY-6351G-02-250
CN2
7P-2.0
R4
120R
R2
120R
1
2
3
4
5
6
7
PS-42E85L
PS-42E85L
SW1A
P
SW1B
R10
120R
MAIN-R-2
MAIN-R-3
MAIN-L-2
MAIN-L-3
R14
120R
1
2
3
R15
120R
R13
120R
4
5
6
R23
5K1
R19
120R
ALT-3 (LEFT)
3c
R
4d
RN
2b
TN
1a
T
5e
S
ALT-4 (RIGHT)
3c
R
4d
RN
2b
TN
1a
T
5e
S
R21
5K1
X5
JY-6351G-02-250
X6
JY-6351G-02-250
7
8
9
P
SW1C
PS-42E85L
10
11
12
P
SW1D
PS-42E85L
R16
120R
R17
120R
R18
120R
R24 5K1
R20
120R
R22
5K1
R6
120R
R7
120R
R5
120R
R11
120R
R
RN
TN
T
S
R
RN
TN
T
S
3c
4d
2b
1a
5e
3c
4d
2b
1a
5e
2
3
1
2
3
1
MAIN R (UNBAL)
X8
JY-6351G-02-250
MAIN L (UNBAL)
X7
JY-6351G-02-250
X10
JY-5030-030G
X9
JY-5030-030G
MAIN OUT
(BALANCED)
RIGHT
LEFT
D
C
B
A
Titel
Size
Date:
File:
1 2 3 4 5 6 78
OUTPUT STAGE (INSERT & MAIN OUTPUT)
PCB# S16PU1.PCB
A3
22-Sep-2003
S16PU1.Sch
ALTO S-16
Sheet
Drawn By:
RevisionModel No:
VER021018
KEVIN LIN.
11of
A
4. PRINTED CIRCUIT DIAGRAM
10
PCB : S16MN1 Top Overlay
11
PCB : S16MN1 Top Layer
12
PCB : S16MN1 Bottom Layer
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