MODEL: PS 4LA

MODEL: L-6

www.altoproaudio.com
Version 1.0
 CONTENTS
1. Introduction…………………………………………………………….2

2. Specification…………………………………………………………....3

3. Black Diagram………………………………………………………….4

4. Schematic Diagram……………………………………………………5

5. Wiring Diagram………………………………………………………..10

6. PCB Layout…………………………………………………………….11

7. Test Procedure………………………………………………………..16

8. BOM……………………………………………………………………..22
1. Introduction

-
-
-
- –
-
-
-
-
-
-
-
-
-
-
-

2
2. Specification

Mono input channels

Microphone input Electronically balanced, discrete input configuration
Frequency response 10Hz to 55kHz, +3dB
Distortion(THD & N) 0.005% at +4dBu, 1kHz
Gain range 0dB to 60dB (MIC)
SNR (Signal to Noise Ratio) 115dB
Line input Electronically balanced
Frequency response 10Hz to 55kHz, +3dB
Distortion (THD & N) 0.005% at +4dBu,1kHz
Stereo input channels
Line input Unbalanced
Frequency response 10Hz to 55kHz,+3dB
Distortion (THD & N) 0.005% at +4dBu,1kHz
Impedance
Microphone input 1.4kOhm
All other inputs 10kOhm or greater
Tape out 1kOhm
All other output 120Ohm
Equalization
Hi shelving +15dB @ 12kHz
Mid bell +12dB @ 2.5kHz
Low shelving +15dB @ 80Hz
Main Mix Section
Noise (Bus noise) Fader 0dB, channels muted:100dBr (ref.:+4dBu)
Fader 0dB, all input channels assigned and set to
UNITY gain: (ref.: +4dBu)
Max output +22dBu balanced XLR
+22dBu unbalanced , 1/4” jacks
AUX return gain range OFF to 15dB
AUX send max out +22dBu
DSP section
A/D and D/A converters 24 bit
DSP resolution 24bit
Type of Vibraflange, Funky, Rockabilly, bigstage, vibrato 1-
4, Flanger1-4, Chorus 1-4
Presets 16
Presets 16-positon preset bank selector
Controls FX level, reverb level Clip LED
Power supply (AC/AC adapter)
Main Voltage USA/Canada 100 12V~, 60Hz
Europe 210 230V~,50Hz
U.K./Australia 240V~, 50Hz
Power consumption 15Watts
Physical
Net weight 1.4kg (xxxlb)
Shipping weight Xxx kg (xxxlb)
Dimension (W*D*H) 185mm 230mm 35/55mm

3
 1 2 3 4 5 6 7 8

MONO INPUT CHANNELS ( 1-2 )

GAIN LO MID HI

LEFT-BUS
RIGHT-BUS
AUX-1
EFX SEND
PHANTOM
POWER
D +48V D
LEVEL PAN LEFT-BUS
2 +
80 2.5K 12K
3. Black Diagram

3
MIC IN 3-BAND EQ
1 AUX SEND
- +/-15db R
RIGHT-BUS AUX-1 T
S

AUX SEND1
LINE IN
EFX SEND

MAIN MIX
LEVEL MAIN OUT
POST R
1 2 AUX1 T
SG/OL LEFT-BUS S
PRE AUX-1
1 2
MAIN MIX LEFT
MIC GAIN:0~60dB
LINE IN TRIM:+15dB~-45dB
LO MID HI

STEREO INPUT CHANNELS (3-6)

LEVEL BALANCE R
3c R T
4d RN - 80 2.5K 12K RIGHT-BUS S
2b TN 3-BAND EQ LEFT-BUS
1a T MAIN MIX RIGHT
C + +/-15db C
5e S
LEFT(MONO)
3c R
4d RN -
2b TN 80 2.5K 12K RIGHT-BUS 2TK TO MIX
1a T EQ 1
+ 2
5e S LEFT-BUS 3
RIGHT 1
2-TRACK
2 TAPE IN TAPE OUT
RIGHT-BUS 3
LEFT

4
POST 2TK TO CTRL ROOM
1 2 AUX1 1 RIGHT
2
PRE 3
1 2 AUX-1
SG/OL

1
2
3

AUX RETURN1
STEREO AUX RETURN 1 PHONES OUTPUT
B 3c R B
4d RN
- LEFT-BUS R
2b TN T PHONES
1a T
+ S

5e S
LEFT
3c R
4d RN
- RIGHT-BUS
2b TN CONTROL ROOM OUTPUT
1a T
+ R
CONTROL ROOM T LEFT
5e S & PHONES S
RIGHT
AUX1

AUX-1 R
LEFT METER T RIGHT
S

PRESETS
DSP BOARD
FX LEVEL RIGHT METER

REVERB LEVEL
AUX-1

LEFT-BUS
EFX SEND

RIGHT-BUS

A A

Titel
ALTO MIXING CONSOLE

Size Model No: Revision

A2(C) L-6 BLOCK DIAGRAM VER030701
Date: 8-Sep-2003 Sheet 1 of 1
File: L6MAP.Sch Drawn By: KEVIN LIN.
1 2 3 4 5 6 7 8
4. Schematic Diagram
1 2 3 4 5 6 7 8

PH PWR +VCC +VCC +VCC R40 +VCC

2K49
R7
6K81
R9
6K81
C11
10n
R35
2K49
C13
10n
R38
2K49
1000u/10V
D6
C19 BAS316
R42
2K49
C23
22P
3
U2A
4580M C52
47u/25V
C121
18n(M)
VR15
B50K
C134
18n(M) C149
C58
47u/25V R199 C151 R173 R223
L6G(1/4)
R1 C8 1 22P 3K9 22P 4K7 PAN 5K1
1 4R7 47u/63V TR5 TR8 U1A R56 2 EQ HI LEFT-BUS
HR TR7 HR 4580M 5K11 12KHZ R186 LEVEL
MIC 1 3
2
C5
HR 3
C25
R20 R106 C139 C56 1M
C57
VR24
R209
36K C60
VR18
B50K
4 1 20K 1K1 12n(M) 47u/25V W50K 2 47u/25V
330P 2
22P 6 47u/25V 1
X1 R19 R62 R174
7 3
20K 10K0 R58 5 4K7
JY-5042-030G R3 R48 R49 5K11 R69 U3A RIGHT-BUS
4R7 C7 C21 R55 1K3 4580M J1
47u/63V 470R 470R R193 R221
22P 5K11 R94 VR17 R95 U3B 5K1
3c R VR12 910R B50K 910R 4580M 30K POST
4d RN C2 R12 -VCC
O10K U1B
D LINE IN1 2b
1a
TN
T
22u/35V 4K02 5 4580M MID (PRE) AUX-1 D
TR2
R4
7 2.5K C145 R79 R195 AUX-POST
5e S C1 R11 TR1 A1316 6 C127 2.2u/50V 6K8 +VCC VR25
4K02 A1316 4R7 R63 1K50
22u/35V 10K0 12n(M) R220 W50K
X3
C15 R77 VR14 R78 5K1
JY-6351G-02-250 6K8 B50K 6K8
1n R43
R15 2K49 C22 LO R172 PEAK
1K50 R16 22P 4K7
1K50 80HZ C109 C110 LD1
MIC GAIN=0~-60dB R34 R54 33n(M) R170 TR12
2K49 C16 R37 -VCC 33n(M) 68K BR RED
2K49 5K11
LINE IN GAIN=+15~-45dB 1n
-VCC -VCC R112 TR11
10K0 BR
PH PWR +VCC +VCC +VCC R41 +VCC
2K49
PGND
R8 R10 R36 C14 R39 D7 R44 U2B
C12 C24 C122 VR16 C133
6K81 6K81 10n 2K49 10n 2K49 C20 BAS316 2K49 4580M C53 C59
22P 18n(M) B50K 18n(M) R175
1000u/10V 5 47u/25V C150 47u/25V R200 C152 R222
R2 C9 7 22P 3K9 22P 4K7 PAN 5K1
1 4R7 47u/63V TR6
TR10
TR9 U4A R57 6 EQ HI LEFT-BUS
HR HR 4580M 5K11 12KHZ R188
MIC 2 3
2
C6
HR
3
C30
R24
20K
R108 C141 C69 1M
C70
LEVEL
VR26
R212
36K C71
VR22
B50K
4 1 1K1 12n(M) 47u/25V W50K 2 47u/25V
330P 2 22P (SOLTON 1K2) 6 47u/25V 1
X2 R22 R65 7 3
R178
20K 10K0 R61 5 4K7
JY-5042-030G R5 R50 R51 5K11 R72 U6A RIGHT-BUS
4R7 C10 C28 R60 1K3 4580M J2
47u/63V 470R 470R R99 R226
22P 5K11 R98 VR20 U6B R194 5K1
3c R VR13 910R B50K 910R 4580M 30K POST
4d RN C4 R14 -VCC
O10K U4B
LINE IN2 2b
1a
TN
T
22u/35V 4K02
5 4580M MID (PRE) AUX-1
TR4 7 2.5K C146 R83 R196 +VCC AUX-POST
5e S R13 TR3 A1316 R6 2.2u/50V 6K8
C3 4R7
6
R64 C129 1K50 VR27
22u/35V 4K02 A1316 12n(M) W50K
X4 10K0 R225
C17 R81 VR19 R82
JY-6351G-02-250 6K8 B50K 6K8 5K1
1n
R17 R47 C29 LO R177 PEAK
1K50 R18 2K49 22P 4K7
1K50 80HZ C111 C112 LD2
R45 R59 33n(M) R171 TR14
2K49 C18 R46 -VCC 33n(M) 68K BR RED
2K49 5K11
C 1n C
-VCC -VCC R120 TR13
10K0 BR
C123 VR5A C135
18n(M) B50K 18n(M) C65
C153 47u/25V R201 C154 PGND
22P 3K9 22P
EQ HI R211 C179 C180 C181 C182 C199 C201
12KHZ LEVEL 36K
C27 R107 C140 C62 R187 100n 100n 100n 100n 100n 100n

8
R113 VR1A C68 R176 R224 +VCC
10K0 22P 1K1 12n(M) 47u/25V 1M W50K 2
R242 47u/25V 4K7 5K1
3c R 2
22K 1
LEFT-BUS U9C U10C U11C U12C U7C U8C
4d RN 1 3
4580M 4580M 4580M 4580M 4580M 4580M
LINE IN 3/4 2b
1a
TN
T
C169
100P
R70
1K3
3
U9A R119 BAL
LEFT(MONO) R116 C61 C64 4580M VR21
R96 VR6A R97 U8A

4
5e S 2 10K0 47u/25V 47u/25V 10K0 -VCC
R114 910R B50K 910R 4580M B50K C189 C192 C195 C198 C200 C202
10K0 1 PRE-CH5 PRE-CH5
X5 3 C66 100n 100n 100n 100n 100n 100n
JY-6351G-02-250 U7A
MID 47u/25V R202 C155
2.5K 3K9 22P
C170 4580M R23
100P C26 R115 20K C128 R117 R118
22P 10K0 12n(M) 10K0 LEVEL R210 10K0
R84 VR7A R86 VR1B 36K R180
R243 W50K 6
6K8 B50K 6K8 7 4K7
22K RIGHT-BUS
LO 5
R228 C184 C185 C187 C190 C196
C33 80HZ C114 C115 C77 5K1 100n 100n 100n 100n 100n

8
R122 33n(M) U9B 47u/25V J3 +VCC
10K0 22P 33n(M) 4580M
3c R R128 POST U1C U2C U3C U4C U6C
4d RN 10K0
2b TN C171 R126 4580M 4580M 4580M 4580M 4580M
RIGHT 1a T 100P 10K0 (PRE) AUX-1
R125 C72 C124 VR5B C136 AUX-POST

4
5e S 6 10K0 47u/25V 18n(M) B50K 18n(M) C147 R88
-VCC
R123 C156 R197 VR28 C183 C186 C188 C191 C197
10K0 7 PRE-CH6 2.2u/50V 6K8 +VCC
X6 5 22P 1K50 R227 W50K 100n 100n 100n 100n 100n
JY-6351G-02-250 EQ HI 5K1
U7B 12KHZ R189
C172 C31 R124 4580M R26 R109 C142 C73 1M R179
100P 22P 10K0 20K 1K1 12n(M) 47u/25V R248 4K7
6 47K L6G.S01 L6G.S02 L6G.S03
7 TR16 LD3
R73 5 BR RED PEAK
1K3 C74
B R100 VR6B R101 U8B R249 TR15 B
47u/25V 47K
PRE-CH6 910R B50K 910R 4580M BR

MID
2.5K PGND
C130 C125 VR8A C137
12n(M) 18n(M) B50K 18n(M) C78
C157 47u/25V R204 C158
R85 VR7B R87 22P 3K9 22P
6K8 B50K 6K8 EQ HI R213
LO R110 LEVEL 36K
C143 C75 VR2A
80HZ C113 C116 1K1 12n(M) 47u/25V
R190
2
C80 R181 R229
33n(M) 1M R244 W50K 47u/25V 4K7 5K1
33n(M) 2
22K 1
LEFT-BUS
1 3
R127 R74 3 BAL
1K3 C76 U12A R129
10K0 4580M
R102 VR9A R103 U11A 47u/25V 10K0
910R B50K 910R VR23
PRE-CH7 4580M B50K
C79 R203
MID 47u/25V 3K9 C159
C32 2.5K 22P
R121
10K0 22P C131 R139 R141
3c 12n(M) 10K0 LEVEL R214 10K0
4d RN
R89 VR10A R91 VR2B 36K R183
LINE IN 5/6 2b TN
1a T
C173
100P
6K8 B50K 6K8 R245
22K
W50K 6
7
4K7
LEFT(MONO) R136 C81 RIGHT-BUS
10K0 47u/25V
LO 5
R231
5e S R130 2
1 PRE-CH7 80HZ C117 C120 C85 5K1
10K0 33n(M) U12B 47u/25V
X7 3 33n(M) 4580M
JY-6351G-02-250 U10A R140
4580M R27 R138 10K0
C174 C34 R133 20K 10K0
100P 22P 10K0 C126 VR8B J4
18n(M) B50K C138
18n(M) C160
22P POST
EQ HI
(PRE) AUX-1
R111 C83 R191
R131 C36 C144
1M AUX-POST
10K0 22P 1K1 12n(M) 47u/25V C148 R93 R198 VR29
3c R 6 2.2u/50V 6K8 1K50 +VCC
4d RN 7 R230 W50K
2b TN C175 R75 5 5K1
A
RIGHT 1a T 100P 1K3 C84
R135 C82 A
10K0 47u/25V R104 VR9B R105 U11B 47u/25V R182
5e S R132 6 B50K 910R
7 PRE-CH8 PRE-CH8 910R 4580M R250 4K7
X8 10K0 47K
5 TR18 LD4
JY-6351G-02-250 MID RED PEAK
BR
U10B 2.5K
C176 C35 R134 4580M R28 R251
20K C132 TR17
100P 22P 10K0 12n(M) 47K BR
R90 VR10B R92
6K8 B50K 6K8
LO PGND
80HZ C118 C119
Titel INPUT STAGE
33n(M) 33n(M) PCB# L6MAIN.PCB
Size Model No: Revision
R137 A2(C) ALTO L-6 VER030709
10K0 Date: 8-Sep-2003 Sheet 1 of 4
File: L6G.Sch Drawn By: KEVIN LIN.
1 2 3 4 5 6 7 8

5
 1 2 3 4 5 6 7 8

L6G (2/4)
C37
22P
PHONES/ CONTROL
ROOM
AUX RETURN 1 R255
C90
47u/25V
R206
3K9
C40
C161
PHONES 3c
C86 22P
R254 VR3A 270K 22P 4d
D
AUX-RTN1-L
47u/25V
150K W50K
2
R232 2TK TO R215 R143
R259
120R
2b
1a
D

1
5K11
LEFT-BUS
LEFT-BUS
CTRL ROOM 36K 10K0
3 SW3A VR4B C91 2 6 5e
C230 R246 W50K 2 47u/25V 1 7
100P 22K U13A C88 PS-22E85L R257 X9
1 3 5
4580M 47u/25V 27K R260 JY-6351G-02-250
3 U16A
BA15218N U16B 120R
C38 2TK TO CR-L U15A BA15218N
22P 4580M R142 R262
L-METER 10K0 120R CTRL ROOM L
R256 R 3c
C87 R253 VR3B RN 4d
47u/25V 270K C39
150K W50K C162 TN 2b
AUX-RTN1-R R233 22P T 1a
6 C89 22P R261
5K11
7 RIGHT-BUS 47u/25V R205 R217 R144 120R R263 S 5e
C231 R247 5
RIGHT-BUS
3K9 10K0 120R
100P 36K X11
22K C93 SW3B 2 6
U13B 47u/25V PS-22E85L VR4A 6 1 7 JY-6351G-02-250
4580M W50K 7 3 5
5 R266
U17A U17B 120R
2TK TO CR-R C95 R145 BA15218N BA15218N R268
R258 120R CTRL ROOM R
27K U15B 47u/25V 10K0 R 3c
C41 4580M RN 4d
22P R-METER
TN 2b
R265 T 1a
R216 120R
36K R 3c R267 S 5e
C92 RN 4d 120R
C AUX-1 2 47u/25V TN 2b X12 C
AUX-1
3
1 AUX-SEND1 T 1a AUX SEND1 JY-6351G-02-250
R264 S 5e
U21A R29 120R
4580M 20K X10 R269
AUX-SEND1
JY-6351G-02-250 120R
R 3c
C94 R207 C165 RN 4d
C164 47u/25V 3K9 22P TN 2b
22P T 1a MAIN L (UNBAL)
MAIN MIX R218 C96
LEFT R270 S 5e
36K 47u/25V R146 120R
2TK TO CR-L R238 10K0 X13
10K0 VR11B
C163 W50K 2 JY-6351G-02-250
C98 R33
22P 2TK TO MIX LEFT-BUS
6 1
SW4A 7 3
47u/25V 10K0 C99 5
PS-22E85L
2TK-IN-L
2TK-IN-L 6 47u/25V C102 R274 U19A R272
7 U18B 39K 4580M 120R
R30 5 47u/25V R 3c
C177 20K R236 LEFT-BUS 4580M
RN 4d
100P U14B R148 5K1 TN 2b
4580M 10K0 T 1a MAIN R (UNBAL)
R271 S 5e
C103 R208 120R
C167 47u/25V C168 X14
2TK TO CR-R 3K9 22P
22P
B C166 MAIN MIX R219 C104
JY-6351G-02-250 B
22P RIGHT 36K
C97 R32 SW4B R239 47u/25V R149
47u/25V 10K0 C100 PS-22E85L VR11A 10K0
47u/25V 10K0
2TK-IN-R
2TK-IN-R 2 W50K 6 TAPE OUT TAPE IN
1 2 7 X17
RIGHT-BUS
R31 3
RIGHT-BUS
1 5
SCP6873NS3232
C178 20K R237 3 U19B
U14A 5K1 R275 R277 4 1
100P R147 C101 4580M L(WHITE)
4580M U18A 39K
10K0 47u/25V 1K
4580M

R278 5 2
R(RED)
1K

3
2TK-IN-L
2TK-IN-L
CN1 2TK-IN-R
-VCC +VCC +5VD 2.5-8P 2TK-IN-R

C204 C206 C207 C209 C211 C215 1

100n 100n 100n 100n 100n 100n R281 C105 C217 2
8

+VCC 47R 47u/25V 100n 3

8

PH PWR
+VCC 4
U13C U14C U15C U18C U19C U21C 5 SW1B
4580M 4580M 4580M 4580M 4580M 4580M U16C U17C 6
PS-22E85L
A R280 BA15218NBA15218N 7
A
8
47R
4

-VCC
4

C203 C205 C208 C210 C212 C216 -VCC

PGND DGND
100n 100n 100n 100n 100n 100n C106 C218 Titel
47u/25V 100n SEND & MAIN OUT & 2TK & CTRL R & PHONES
SW1A Size Model No: Revision
PS-22E85L A2(C) ALTO L-6 VER030709
Date: 8-Sep-2003 Sheet 2 of 4
File: L6G.S01 Drawn By: KEVIN LIN.
1 2 3 4 5 6 7 8

6
 1 2 3 4

LEFT METER L6G (3/4)

(-30) (-10) (-4) (0) (+10) (+18)
TR21 LD9 LD10 LD11 LD12 LD13 LD14
+VCC R284 GR GR GR GR YEL RED
HR -VCC +VCC
D 120R D

R286

1
1
1

14
14
14
U23B U23C U24B U24C U25B U25C 2K
LM339 LM339 LM339 LM339 LM339 LM339
LD19
GR

7
6
9
8
7
6
9
8
7
6
9
8
R52 PWR ON
470R
D1A D1B +VCC PGND
PGND
PH PWR
R287 R285 R288 R291 R289 R292 R290
DA204K 47R 560R 820R 820R 3K9 5K6 22K

C R184 C
R151 R53 4K7
10K0 470R

4
4
4

5
5
5

11
10
11
10
11
10
LD6
RED
PGND U23A U23D U24A U24D U25A U25D PHANTOM
LM339 LM339 LM339 LM339 LM339 LM339

2
2
2

13
13
13

R273 PGND

7
120R -VCC

TR22
HR LD20 LD21 LD22 LD23 LD24 LD25
GR GR GR GR YEL RED
RIGHT METER
C219 R282
B
C238 100n 47R +VCC B
47P C239
D2 D4 47P
8
3
3
3

C107
R299 RLS4148 RLS4148 47u/25V
100K U22C U23E U24E U25E
2 6
L-METER 4580M LM339 LM339 LM339
1 7
3 5 PGND
C108
4
12
12
12

D3 U22B D5 47u/25V
U22A RLS4148 RLS4148
4580M 4580M
C220 R283 -VCC
R301 R302 100n 47R
100K R303 100K R304
C236 10K0 C237
47u/25V 10K0
47u/25V

PGND PGND PGND PGND Titel

A R300 A
100K DISPLAY STAGE
R-METER
Size Model No: Revision
A4 ALTO L-6 VER030709
Date: 8-Sep-2003 Sheet 3 of 4
File: L6G.S02 Drawn By: KEVIN LIN.
1 2 3 4
 1 2 3 4 5 6 7 8

L6G (4/4)

D D

+5VD

2
4
6
8
C243 R154 AR1
C42 1.5nF 10K0 680R*4
22P
C250
STEREO AUX R152
10K0 FX LEVEL 4.7uF EN1
SDB161PVB15FS
RETURN1 CN2

1
3
5
7
R153 1 1
R307 R155 HEADER 8X2
10K0 R157 10K0 10K0 2 2 COM
3c C240 R305 10K0 VR30 6
2 1
3 4
4d 4.7uF 68R 2 W50K 7
4 3
4 8
2b EFXRTN-L 1 5
LEFT 1 1a AUX-RTN1-L 3 C246 6 5
U29B 33P 8 7 VARIATION DGND
U29A 10 9
5e 4580M 4580M
12 11
14 13
X15 16 15
JY-6351G-02-250 C245 R161
1.5nF 10K0
C251 GND
C REVERB LEVEL
4.7uF C

R160 R163
C242 R306 10K0 10K0
3c VR31 6
4d 4.7uF 68R W50K 7
2b EFXRTN-R 5
C247
RIGHT 1 1a AUX-RTN1-R
33P
U30B C229 +5VD
5e 4580M 100n
X16
JY-6351G-02-250 C249
C43 C244 R159 C45 10uF
22P 1.5nF 10K0 22P
JP1
R309 R162
C241 2K2 10K0 DGND
4.7uF R156 PGND
10K0
AUX-SEND1
AUX-SEND1 6
7 2
5 1
R158 3
U31B 10K0 U31A
4580M 4580M

B B
+VCC
R311
D8A C224 C226
UDASP IN/OUT SECTION 7K5
RB400D 100n 100n

8
+VCC
LD8 R192
RED C222 1M U29C U30C U31C U32C
MUTE(GLOW) 100n R310 4580M 4580M 4580M LM393
PEAK(FLICKER) R185 2M2
4K7

4
-VCC
5
3 R279 7 C225 C227
1 6 100n 100n
2
1K
U32B
U32A LM393 R312 R315
LM393 220R 820K

A A

Titel
UDASP IN/OUT SECTION

Size Model No: Revision

A2(C) ALTO L-6 VER030709
Date: 8-Sep-2003 Sheet 4 of 4
File: L6G.S03 Drawn By: KEVIN LIN.
1 2 3 4 5 6 7 8

8
9
 1 2 3 4

L-6
D D
5. Wiring Diagram

AC INPUT HA00027

ADAPTOR
AC 110V/220V
TG00077

C C

1
2
3

10
2P-2.5
CN1

1
2
3
4
5
6
7
8
2.5-8P

B CN1 L6PWR B

L6G
8
7
6
5
4
3
2
1

CN3
2.5-8P

A Titel A
L-6 Wiring Diagram

Size Model No: Revision

A4 ALTO L-6 VER030710
Date: 8-Sep-2003 Sheet 1 of 1
File: L6PIN.Sch Drawn By: J.S.TASY
1 2 3 4
6. PCB Layout

PCB : L6G

Bottom Layer

11
Bottom Overlay

12
Top Overlay

13
PCB : L6G Top Layer

14
PCB: L6 PWR

Bottom layer

Bottom overlay

Top overlay

15
Finished product test procedure

1. Instruments
AP tester
Double trace oscillometer
Voltmeter

2. Functions test
a. Input the proper AC power supply, turn on the main power, POWER LED will be
illuminated (green). Then switch on PHANTOM power, PHANTOM LED will be
illuminated (red), use a voltmeter to test the first pin and second pin of each MIC
(MIC 1, MIC 2), the volt of phantom power should be 46V(±2V). then power off
the switch.(Note: please turn off the switch when you are doing the steps of test
procedure as follows)

b. Set all TRIM, LEVEL, EQ, AUX knobs to the position of 0, set PAN to the
position of LEFT. All buttons to the position of OFF.

c. Input the signal from balanced sockets (MIC 1 & MIC 2), input the signal from t
unbalanced sockets (LINE IN 3/4&LINE5/6),

d. Input the signal to the unbalanced AUX RENTURN sockets separately, test the
balanced output (LEFT & RIGHT) of MAIN MIX OUTPUT, which should be
5dBu (±1dB) THD + N<0.003%.

e. Insert the RCA plug to L& R of TAPE IN separately:

First, press 2TK TO MIX button, test the unbalanced outputs (LEFT&RIGHT) of
MAIN MIX OUTPUT, CONTROL ROOM and PHONE (need stereo plug for
testing) separately, which should be 0dBu(±1dB) THD + N<0.006%.the output of
TAPE OUT is 0dBu(±1dB)

Then release 2TK TO MIX button (OFF), no input from CONTROL ROOM,
when press 2TK TO CONTROL ROOM, test the output, which is 0dBu (±2dB)
THD + N<0.002%.

f. Input +15dBu 1kHz sine wave (load out 600Ω, BNC-Unbalanced) through
LINE 1, when turn MAIN MIX LEVEL counter-clockwise to the minimize, all

16
 LEVEL LEDs will turned off, when turn MAIN MIX LEVEL pot clockwise to the
maximize, the LEVEL LEDs will be illuminated in sequence. test that whether the
relating LED is illuminated when the level of output signal reaches the exactly
value as LED shows . If so, test the maximize output level (before clipping) is
20dBu(±1dB) THD + N<0.1%.)

Adjust TRIM knob of CH 1 clockwise, PEAK LED will be illuminated (red). And
test all PEAK LEDs from CH 1 to CH6

3. frequency response test

When Test the inputs of LINE 1, LINE 2, LINE 3, LINE 4, LINE 5, LINE 6
separately as follows, the frequency response curve of MAIN MIX OUTPUT
(LEFT & RIGHT) (the preset of all knobs are the same as function test step 2.b)

a. Open S8RESP1.atl test procedure, press and release the LOW CUT switch, test
the frequency response curve of LINE 1, LINE 2 LINE 3, LINE 4 , please refer
to the following figure.
(Remark: don’t need to test L6 with this step)

Audio Precision 07/22/03 15:41:30

+20

+10

+0

d -10
B
m -20

-30

-40

-50
20 50 100 200 500 1k 2k 5k 10k 20k
Hz

17
 b. Turn EQ HI &LOW knob to the MAX and the MIN (EQ MID at the middle), test
the frequency response, the frequency response curve is shown as follows, please
refer to the following figure.

Audio Precision 07/21/03 15:54:30

+20

+15

+10

+5

+0
d
B -5
m
-10

-15

-20

-25

-30
20 50 100 200 500 1k 2k 5k 10k 20k
Hz

c. Turn EQ MID to the MAX and the MIN (EQ HI &LOW at the middle), test the
frequency response, the frequency response curve is shown as follows, please
refer to the following figure.

Audio Precision 07/21/03 15:52:05

+20

+15

+10

+5

+0
d
B -5
m
-10

-15

-20

-25

-30
20 50 100 200 500 1k 2k 5k 10k 20k
Hz

18
 Remarks: the frequency response test of normal instruments:
a. Turn EQ LOW knob of the relating channel clockwise to the max (+15), the
output is +15dBu(± 2dB), then turn EQ LOW knob of the relating channel
counter-clockwise to the min. (-15), the output is –15dBu(± 2dB);
b. Input the signal at 2.5kHz, Turn EQ MID knob of the relating channel
clockwise to the max (+12), the output is +12dBu(± 2dB), then turn EQ MID
knob of the relating channel counter-clockwise to the min. (-12), the output is –
12dBu(± 2dB);
c. Input the signal at 15kHz, Turn EQ HIGN knob of the relating channel clockwise to
the max (+15), the output is +15dBu(± 3dB), then turn EQ HIGH knob of the relating
channel counter-clockwise to the min. (-15), the output is –15dBu(± 3dB);
4. test DSP
a. Input the signal from MIC1, output the signal from MAIN MIX OUTPUT, turn
AUX RTN2(DFX)clockwise to the MAX, turn PRESETS and VARATIONS knobs,
the signal will be processed by DSP, if the level of the signal is over-high, PEAK
LED will be illuminated to red, press DFX MUTE button, Bypass the signal, press
the footswitch, which is connected to DFX FOOSWITCH, the signal will get out of
BYPASS.
b. Input the signal from MIC 1 to MIC 4, output the signal from AUX SEND S1, turn
AUX 2 /DFX TO AUX 1 counter-clockwise to the MAX., turn PRESET and
VARATIONS knobs, the signal will be processed by DSP. (do not need to test L6
with this step)
5. Sampling test
Connecting L 6 to a power amplifier and speakers, listening to the sound, no noise is OK.

Company preset: turn all volume knobs to the MIN. other control knobs to the middle,
all switches to the position of OFF.

DONE

19
7. Exploded View & Mechanical Part List

20
No. Part No. Description Specification Qty
1 MA04257 Panel L-6 ALTO 1
2 HK02233 K-PCB P-L6G-DIP 1
3 MF00061 Washer (MIC jack) JY-6531G-02-250 14
4 ME00060 Screw (MIC jack) JY-6531G-02-250 14
5 MG00061 Screw M3*10 5
6 NI00284 knob 10.5*18 2
7 NI00283 knob 10.5*18 12
8 NI02633 knob 10.5*18 7
9 NI02082 knob 10.5*18 4
10 NI000826 knob 12*18 6
11 NI02386 Knob 14*13 1
12 NI01863 Button 5.5*W10*6 3
13 MG00041 Screw M3*6 26
14 MG00304 Copper pillar M-0P0.5 14mm 5
15 MG00363 Copper pillar M-0P0.5 14mm 3
16 HI00019 Power switch 4P MSR-8 1
17 HC00527 Connector SCMI405MOS3N 1
18 MJ01189 Barrier board L-8 1
19 NI02620 Insulated board 1*86.5*53 L-8 1
20 HK03893 PCB P-313123-DIP (1-8) 1
21 NI00863 Insulation bean TO220B 4
22 MG00020 Screw M3*8 4
23 MB02877 Rear panel L-6 ALTO 1
24 HK01591 PCB P-16 PWR 1
25 MJ01145 Heat sink RD-82 1
26 MF00037 Color washer 3* 5*1t 2
27 MF00030 Washer 3* 8*0.8t 2
28 ME00015 Color screw 3mm 2
29 NC00005 Insulation pill T0220 (square) 1
30 NC00022 Insulation pill 0.3t*18**45mm S-8 1
31 NI02249 Cushion TW-1 (TO-220) 4
32 MG00162 Screw M3*8 4
33 NI00501 Cushion 12.7*9*3t (SF-004) 4

21
8. BOM
No. Part No. Description Specification Remark
1 MA04257 panel L-6 ALTO
2 MA04258 panel L-6
3 MA04259 panel L-6_V1.4
4 MJ01186 hot gradual zinc 1.0t*2135*1220mm 20.45kg
5 MB02877 rear board L-6
6 MB02878 rear board L-6 1.0t*185.5*229*55
7 MJ00058 single light board 1*2135*1220 20.45kg
8 ME00032 iron pillar hexagon6.35*M3*5.2
9 ME00004 screw pillar M3*10*0.5PH
10 MJ01189 barrier L-8
11 MJ00061 iron board 1*2135*1220 20.45kg
12 ME00066 iron pillar M3*7
13 HI00019 power switch 4P MSR-8
14 HA00027 wire 40mm red L5R5
15 HA00039 wire 40mm yellow L5R5
16 NI00240 sleeve 2.5*10mm
17 NI00239 sleeve 2.5*1000mm
18 NI00251 sleeve 4*12mm
19 NI00248 sleeve 4*1000mm
20 MG00304 copper pillar M3*14*0.5PH
21 MG00363 copper pillar M3*14*0.5PH
22 NI01863 key-RS 5.5*W10*7.5
23 NI02083 knob 10.5*18mm
24 NI02633 knob 10.5*18
25 NI02082 knob 10.5*18mm
26 NI02714 knob 10*13.5mm
27 NI00826 knob 12*18mm double color
28 NI02386 knob 14*13mm
29 MG00041 screw M3*6
30 MG00061 screw M3*10
31 ME00060 MIC jack JY-6351G-02-250
32 MF00061 MIC jack 9.6* 13*0.5t
33 HA02750 wire 3P(female) 150mm UL1007 22AWG
34 HA02355 wire 8P-8P 200mm UL1007 22AWG
35 NI00218 cable tie ALT-102SB
36 NI00501 self-adhere foot cushion 12.7*9*3t(SF-004)
37 NA00124 PE bag 0.04t*440*350mm
38 HJ00002 desiccant 10g
39 NF01503 instruction L-6 ALTO_V1.1
40 NH00149 paper 889*640mm
41 NI02911 handle ALTO 072C

22
No. Part No. Description Specification Remark
42 NB02495 gift carton L-6 ALTO
43 NB02493 carton L-6 ALTO
44 HC00527 connector SCMI405MOS3N000 3P mail
45 TG00087 adapter 230V/50Hz_AC36V/500mA_EI-57
46 MJ01145 heat sink RD82
47 MJ01142 radiator RD82
48 MJ00070 AL plate 4*2440*1220 32.40kg
49 NI02249 plastic washer TW-1(TO-220)
50 NC00022 insulator 0.3t*18*45mm S-8
51 NC00005 silicone insulator TO-220 square type
52 MG00162 screw M3*8
53 ME00015 color nut 3m/m
54 MF00037 washer 3.2* 5.5*1t
55 MF00030 washer 3.5* 8*0.8t
56 NB02490 cushion L-6 left
57 NB02491 cushion L-6 right
58 NF00061 assurance card ALTO
59 NE05004 label ALTO
60 NH00334 cone paper 0.040*1m
61 NE06299 label L-6
62 NH00012 bond paper 0.04*1M
63 NI00014 membrane 0.035*1M
64 NI02620 insulation board 1*86.5*53 L-8
65 NC00010 insulation board 0.65M*60M*1t
66 NI00863 plastic washer TO220B
67 MG00020 screw M3*8
68 HK02233 PC board P-L6G-DIP
69 RA00185 fixed resistor 1/4W 120 M type R259,R260,R261,R266,R273,R284

70 RA00174 fixed resistor 1/4W 47 M type R280,R281

71 CB00011 electrolytic capacitor 2.2uF/50V 5*11mm C145,C146,C147,C148
72 CB00018 electrolytic capacitor 4.7uF/25V 4*7mm C240,C241,C242,C250,C251
73 CB00024 electrolytic capacitor 10uF/16V 4*7mm C249
74 CB00029 electrolytic capacitor 22uF/35V 5*11mm C1,C2,C3,C4
C52,C53,C108,C236,C237,C56,C57,
C58,C59,C60,C61,C62,C64,C65,C66,
C68,C69,C70,C71,C72,C73,C74,C75,
C76,C77,C78,C79,C80,C81,C82,C83,
75 CB00175 electrolytic capacitor 47uF/25V SLL 5*11mm C84,C85,C86,C87,C88,C89,C90,C91,
C92,C93,C94,C95,C96,C97,C98,C99,
C100,C101,C102,C103,C104,C105,
C106,C107
76 CB00042 electrolytic capacitor 47uF/63V 105 LZ 8*11mm C7,C8,C9,C10
77 CB00074 electrolytic capacitor 1000uF/10V 8*11mm C19,C20
C127,C128,C129,C130,C131,C132,
78 CF00054 metal-film capacitor MSC 0.012uF/63V ±5% CASE01 C139,C140,C141,C142,C143,C144

23
No. Part No. Description Specification Remark
C121,C122,C123,C124,C125,C126,
79 CF00021 metal-film capacitor MSC 0.018uF/63V 5% CASE01 C133,C134,C135,C136,C137,C138
C109,C110,C111,C112,C113,C114,
80 CF00023 metal-film capacitor MSC 0.033uF/63V 5% CASE01 C115,C116,C117,C118,C119,C120
81 CF00003 metal-film capacitor MSC 0.0015uF/100V 5% CASE01 C243,C244,C245
82 HC00072 row-wire header connector(male) CN1
83 HC00511 connector 2.54 180° 2*8P(gold-plated) 5.7mm CN2
84 HI00236 push-button switch-RS 2-stage 6P PS-9226A(SELF-LOCK) SW1,SW3,SW4
LD9,LD10,LD11,LD12,LD19,LD20,
85 SA00052 L.E.D 3 round(green)long foot 26 LD21,LD22,LD23
LD1,LD2,LD3,LD4,LD6,LD8,LD14,
86 SA00053 L.E.D 3 round(red)long foot 26mm LD25
87 SA00054 L.E.D 3m/m round(yellow)long foot 26 LD13,LD24
LD1,LD2,LD3,LD4,LD6,LD8,LD9,LD10
88 NI01782 LED spacer support LEDS-11 11mm ,LD11,LD12,LD13,LD14,LD19,LD20,
LD21,LD22,LD23,LD24,LD25
89 RC00359 potentiometer W50K RD09F113A224-50K4BT(SAS1);30F VR24,VR25,VR26,VR27,VR28,VR29

90 RC00444 potentiometer W50K RD09F1130047-50K4B(SAS1);30F VR30,VR31

91 RC00361 potentiometer W50K RD12L12CA60B-50K4BT*2(SAS1);30F VR1,VR2,VR3,VR4,VR11
VR14,VR15,VR16,VR17,VR18,VR19,
92 RC00358 potentiometer B50K -RD09F113A223-50K2BT(SAS1);30F-C
VR20,VR21,VR22,VR23
93 RC00360 potentiometer B50K RD12L12CA23A-50K3BT*2(SAS1);30F-C VR5,VR6,VR7,VR8,VR9,VR10
94 RC00356 potentiometer Z10K RD09F1130042-10KZ(SAS1);30F VR12,VR13
95 HI00195 rotary switch SDB161PVB15.5F-1-4-16-16PC EN1
96 HC00126 balance MIC jack JY-5042-030G female plug 180° X1,X2
X3,X4,X5,X6,X7,X8,X9,X10,X11,X12,
97 HC00125 MIC jack JY-6351G-02-250 X13,X14,X15,X16
98 HC00403 RCA jack SCP6873NS3232T2 4P X17
99 SB00175 transistor 2SA970-BL(TE2;T) TR1,TR2,TR3,TR4
100 SD00007 integrated circuit BA15218N (M5218L substitute) U16,U17
101 RA00505 precise resistor 1/4W 6.81K M type R7,R8,R9,R10
102 HK02232 PC board P-L6G-SMD
103 HB01024 PCB L6G_VER031125
104 RD00355 SMD fixed resistor 1/10W 4.7 ±5% 0603 R1,R2,R3,R4,R5,R6
105 RD00065 SMD fixed resistor 1/10W 47 ±5% 0603 R282,R283,R287
106 RD00066 SMD fixed resistor 1/10W 68 ±5% 0603 R305,R306
R262,R263,R264,R265,R267,R268,
107 RD00069 SMD fixed resistor 1/10W 120 ±5% 0603 R269,R270,R271,R272
108 RD00073 SMD fixed resistor 1/10W 220 ±5% 0603 R312
109 RD00078 SMD fixed resistor 1/10W 470 ±5% 0603 R48,R49,R50,R51,R52,R53
110 RD00079 SMD fixed resistor 1/10W 560 ±5% 0603 R285
111 RD00082 SMD fixed resistor 1/10W 820 ±5% 0603 R288,R291
R94,R95,R96,R97,R98,R99,R100,
112 RD00349 SMD fixed resistor 1/10W 910 ±5% 0603 R101,R102,R103,R104,R105
113 RD00083 SMD fixed resistor 1/10W 1.0K ±5% 0603 R277,R278,R279
114 RD00350 SMD fixed resistor 1/10W 1.1K ±5% 0603 R106,R107,R108,R109,R110,R111

115 RD00351 SMD fixed resistor 1/10W 1.3K ±5% 0603 R69,R70,R72,R73,R74,R75
116 RD00087 SMD fixed resistor 1/10W 2.0K ±5% 0603 R286
117 RD00088 SMD fixed resistor 1/10W 2.2K ±5% 0603 R309
R199,R200,R201,R202,R203,R204,
118 RD00092 SMD fixed resistor 1/10W 3.9K ±5% 0603 R205,R206,R207,R208,R289

24
No. Part No. Description Specification Remark
R172,R173,R174,R175,R176,R177,
119 RD00093 SMD fixed resistor 1/10W 4.7K ±5% 0603 R178,R179,R180,R181,R182,R183,
R184,R185
R220,R221,R222,R223,R224,R225,
120 RD00094 SMD fixed resistor 1/10W 5.1K ±5% 0603 R226,R227,R228,R229,R230,R231,
R236,R237
121 RD00095 SMD fixed resistor 1/10W 5.6K ±5% 0603 R292
R77,R78,R79,R81,R82,R83,R84,R85,
122 RD00097 SMD fixed resistor 1/10W 6.8K ±5% 0603 R86,R87,R88,R89,R90,R91,R92,R93
123 RD00098 SMD fixed resistor 1/10W 7.5K ±5% 0603 R311
R19,R20,R22,R23,R24,R26,R27,R28,
124 RD00306 SMD fixed resistor 1/10W 20K ±5% 0603 R29,R30,R31
R242,R243,R244,R245,R246,R247,
125 RD00105 SMD fixed resistor 1/10W 22K ±5% 0603 R290,R152,R157
126 RD00106 SMD fixed resistor 1/10W 27K ±5% 0603 R257,R258
127 RD00107 SMD fixed resistor 1/10W 30K ±5% 0603 R193,R194
R209,R210,R211,R212,R213,R214,
128 RD00353 SMD fixed resistor 1/10W 36K ±5% 0603 R215,R216,R217,R218,R219
129 RD00109 SMD fixed resistor 1/10W 39K ±5% 0603 R274,R275
130 RD00111 SMD fixed resistor 1/10W 47K ±5% 0603 R248,R249,R250,R251
131 RD00114 SMD fixed resistor 1/10W 68K ±5% 0603 R170,R171
132 RD00116 SMD fixed resistor 1/10W 100K ±5% 0603 R299,R300,R301,R302
133 RD00118 SMD fixed resistor 1/10W 150K ±5% 0603 R253,R254
134 RD00121 SMD fixed resistor 1/10W 270K ±5% 0603 R255,R256
135 RD00124 SMD fixed resistor 1/10W 820K ±5% 0603 R315
R186,R187,R188,R189,R190,R191,
136 RD00125 SMD fixed resistor 1/10W 1.0M ±5% 0603 R192
R15,R16,R17,R18,R195,R196,R197,
137 RD00201 SMD precise resistor 1/10W 1.50K ±1% 0603 R198
R34,R35,R36,R37,R38,R39,R40,R41,
138 RD00204 SMD precise resistor 1/10W 2.49K ±1% 0603 R42,R43,R44,R45,R46,R47
R54,R55,R56,R57,R58,R59,R60,R61,
139 RD00210 SMD precise resistor 1/10W 5.11K ±1% 0603 R232,R233
140 RD00364 SMD precise resistor 1/10W 4.02K ±1% 0603 R11,R12,R13,R14
R32,R33,R62,R63,R64,R65,R112,
R113,R114,R115,R116,R117,R118,
119,R120,R121,R122,R123,R124,
R125,R126,R127,R128,R129,R130,
R131,R132,R133,R134,R135,R136,
141 RD00214 SMD precise resistor 1/10W 10.0K ±1% 0603 R137,R138,R139,R140,R141,R142,
R143,R144,R145,R146,R147,R148,
R149,R151,R153,R154,R155,R156,
R158,R159,R160,R161,R162,R163,
R238,R239,R303,R304,R307
142 RD00126 SMD fixed resistor 1/10W 2.2M ±5% 0603 R310
C21,C22,C23,C24,C25,C26,C27,C28,
C29,C30,C31,C32,C33,C34,C35,C36,
C37,C38,C39,C40,C41,C42,C43,C45,
143 CI00051 SMD ceramic capacitor 0603 22PF/50V C0G±5%(C1608C0G1H220JT)/TDK C149,C150,C151,C152,C153,C154,
C155,C156,C157,C158,C159,C160,
C161,C162,C163,C164,C165,C166,
C167,C168
144 CI00053 SMD ceramic capacitor 0603 33PF/50V C0G±5%(C1608C0G1H330JT)/TDK C246,C247
C169,C170,C171,C172,C173,C174,
145 CI00059 SMD ceramic capacitor 0603 100PF/50V NPO ±5% C175,C176,C177,C178,C230,C231
146 CI00062 SMD ceramic capacitor 0603 330PF/50V NPO ±5 C5,C6
147 CI00065 SMD ceramic capacitor 0603 0.001uF/50V X7R ±10% C15,C16,C17,C18
148 CI00071 SMD ceramic capacitor 0603 0.01uF/50V X7R ±10% C11,C12,C13,C14

25
No. Part No. Description Specification Remark
C179,C180,C181,C182,C183,
C184,C185,C186,C187,C188,C189,
C190,C191,C192,C195,C196,C197,
C198,C199,C200,C201,C202,C203,
149 CI00075 SMD ceramic capacitor 0603 0.1uF/50V Y5V +80,-20%
C204,C205,C206,C207,C208,C209,
C210,C211,C212,C215,C216,C217,
C218,C219,C220,C222,C224,C225,
C226,C227,C229
150 RE00011 SMD resistor networks 1/16W 680 *4 ±5% 8P 0603 AR1
151 SE00028 SMD rectifier diode BAS316,115 D6,D7
152 SE00008 SMD rectifier diode DA204K/T-146 D1
153 SE00007 SMD rectifier diode RB400D(D3A) D8
154 SE00011 SMD rectifier diode RLS4148 0.5A (LL-34) D2,D3,D4,D5
TR5,TR6,TR7,TR8,TR9,TR10,
155 SF00053 transistor MMBT3906(SOT-23)/(PHI) TR21,TR22
TR11,TR12,TR13,TR14,TR15,TR16,
156 SF00056 transistor MMBT3904(SOT-23)/(PHI) TR17,TR18
157 SG00032 SMD integrated circuit LM339DR/(TI) U23,U24,U25
U1,U2,U3,U4,U6,U7,U8,U9,U10,U11,
158 SG00122 SMD integrated circuit NJM4580M-TE3 U12,U13,U14,U15,U18,U19,U21,U22,
U29,U30,U31
159 SG00306 SMD integrated circuit LM393DR(TI)/(MEXICO) U32
160 AE00221 tin soldering paste SJ-617
161 AC00002 solder wire 63/37%
162 HK01591 PC board P-L6PWR
163 HB00982 PCB L6PWR_VER040416
164 RA00242 fixed resistor 1/4W 10K M type R2
165 RA00159 fixed resistor 1/4W 10 M type R3
D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,
166 SA00094 rectifier diode 1N4002/100V D11,D12,D13,D14
167 SA00127 zener diode 1/2W 47V 1N5261 ZD1
168 RA00250 fixed resistor 1/4W 20K M type R4
169 RA00301 fixed resistor 1/4W 390K M type R1
170 CB00039 electrolytic capacitor 47uF/25V 5*11mm C3,C4
171 CB00043 electrolytic capacitor 47uF/100V 10*12mm C8,C9
172 CB00052 electrolytic capacitor 100uF/100V 13*21mm C5,C6
173 CB00061 electrolytic capacitor 220uF/100V 13*26mm C7
174 CB00070 electrolytic capacitor 1000uF/16V 10*16mm C10
175 CB00079 electrolytic capacitor 2200uF/25V 13*25mm C1,C2
176 SD00074 integrated circuit L7805CV(TO-220)(ST) TR4
177 SD00077 integrated circuit L7815CV(TO-220)(ST)(MOROCCO) TR1
178 SD00079 integrated circuit L7915CV(TO-220)(ST) TR2
179 SB00043 transistor TIP122(ST) TR3
180 HC00066 connector(male) 3P 2.5mm 90° CN1
181 HC00082 connector(male) 8P 2.5mm 180° CN3
182 HA01922 jump 8mm JP1,JP2,JP6,JP7,JP8,JP10
183 HA02249 wire 0.6
184 HA01925 jump 10mm JP3,JP4,JP9
185 HA02249 wire 0.6
186 HA01919 jump 5mm JP5

26
No. Part No. Description Specification Remark
187 HA02249 wire 0.6
188 AC00002 solder wire 63/37%
189 HK02227 PC board P-TY-2G(L6)-DIP
190 SC00004 crystal oscillator 16.00MHZ XT1
191 HC00499 connector 2.54 180°2*8P(gold-plated) 6/11.6mm CN1
192 HK02229 PC board P-TY-2G(L6)-AI
193 CB00010 electrolytic capacitor 1uF/50V 4*7mm C9
C1,C24,C23,C21,C20,C19,C15,C14,
194 CB00166 electrolytic capacitor 100uF/16V 6*5mm C6,C2
195 HK03718 PC board P-TY-2G-SMD
196 HB00902 PCB 313124/1(1*8)
197 CI00049 SMD ceramic capacitor 0603 15PF/50V C0G±5%(C1608C0G1H150JT)/TDK C8,C7
C3,C5,C22,C18,C17,C16,C13,C12,
198 CI00075 SMD ceramic capacitor 0603 0.1uF/50V Y5V +80,-20% C11,C10,C4
199 RD00061 SMD fixed resistor 1/10W 10 ±5% 0603 R14
200 RD00068 SMD fixed resistor 1/10W 100 ±5% 0603 R17,R1,R19
201 RD00073 SMD fixed resistor 1/10W 220 ±5% 0603 R2
202 RD00085 SMD fixed resistor 1/10W 1.5K ±5% 0603 R10,R13,R9,R12,R5,R8,R7,R11
203 RD00101 SMD fixed resistor 1/10W 10K ±5% 0603 R18,R6,R16
204 RD00125 SMD fixed resistor 1/10W 1.0M ±5% 0603 R4
205 RE00010 SMD resistor networks 1/16W 2.2K *4±5% 8P 0603 AR1,AR2
206 SE00011 SMD rectifier diode RLS4148 0.5A (LL-34) D1
207 SG00016 SMD integrated circuit UDA1345TS (Philips) IC2
208 SG00102 SMD integrated circuit BS62LV256SC-70 IC4
209 SG00166 SMD integrated circuit TY-2 ALTO(GMCODE:105022) IC1
210 SG00147 SMD integrated circuit CHEF DSP(GMCODE:105022)
211 SG00037 SMD integrated circuit LD1117DT33C(TO-252) IC3
212 AE00221 tin soldering paste SJ-617
213 AC00002 solder wire 63/37%
214 NE02717 label MADE IN CHINA
215 NH00038 paper 0.115*1M
216 NI00028 membrane 0.110*1M
217 NI01594 MOUNT TH-1
218 MG00161 screw M3*6
219 MG00036 screw M3*4
220 NA00279 clip-chain bag 0.04t*100*150mm_V1.0
221 AD00012 twin adhesive 90*120mm_V1.0

27