Alto DI 4 - II User manual

www.altoproaudio.com
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Version 1.0
MODEL: DI 4- II
Revised on Jan,2010

CONTENTS
1. Introduction..............................................................................................................................1
2. Specification.............................................................................................................................2
3. Block Diagram..........................................................................................................................3
4. Schematic Diagram................................................................................................................4
5. Wiring Diagram........................................................................................................................6
6. PCB Layout..............................................................................................................................7
7. Exploded View & Mechanical Parts List.......................................................................................15
8. BOM List.................................................................................................................................17

DI stands for "Direct Injection" and DI Boxes are also called Direct Boxes. You need to use Direct Boxes if
you wish to convert a high impedance instrument signal or an unbalanced signal into a format that will be
suitable for direct connection into a mixer.
With the ▲LTO DI 4 II Direct Box, You can
a. convert a high impedance signal into a low impedance signal.
b. convert an unbalanced signal into a balanced signal.
c. convert a line level signal into a microphone level signal for connection into the Microphone input of
the mixer.
d. isolate the instrument on stage from the mixer. In such way you can eliminate noise caused by the
ground loop.
There are basically two different kinds of Direct Boxes on the market: Passive and active. Both will be
connected to the MIC input of the Mixer but active boxes such as your DI 4 perform better and produce
better frequency response. DI 4 II enjoys following features:
XLR input and output connectors;
Converts unbalanced input into balanced output;
Phase problems instantly corrected through PHASE INVERSION switch;
Ground loop problems eliminated via GND LIFT switch;
8 kHz High cut Filter available for guitar applications;
4 CHANNEL Direct Box for applications in recording studio and stage;
Special transformer decoupling in order to avoid hum and noise pick-up;
Outstanding audio performances insured by ultra-low noise operational amplifiers.
1. Introduction
--- 1 ---

Inputs 1/4” jack unbal. In/ Link Out
XLR unbalanced In
Input Impedance max 220 kOhm
Maximum Input level +13/+33/+53 dBm
Output XLR balanced Out
Load Impedance >600 Ohm
Max Output Level +18 dBm
Bandwidth(100kOhm) 23Hz to 105Khz(±3dbm)
Bandwidth(600Ohm) 23Hz to 60Khz(±3dbm)
Bandwidth(High Cut) 23Hz to 8Khz(±3dbm)
Noise Level -105dBm
THD+N @ 1 kHz / 10 dBm < 0.01 %
Connector type 3-pole IEC,grounded
Type Servo controlled,stabilized
Mains supply 115V or 230V 50/60Hz
Power Rating max. 10W
Fuse 100-120V~: T200mA H
200-240V~: T100mA H
Dimensions 483 mm x 197.5 mm x 44.2 mm
Weight ca. 3.7 Kg
Input
Physical
Power supply
System specifications
Output
2. Specification
--- 2 ---

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DI4 II DIGRAM.Sch
Titel Size File: Date: Drawn By:
Sheet
RevisionModel No:
28-Oct-2002 TASY J.S.
DI4 II BLOCK DIGRAM
11 of
DI4 II V1.0
A3
CH1
2 1 3 4
CN12
INPUT
3c 5e 1a 4d 2b
INPUT 3c
5e 1a 4d 2b
LINK
SW23
-20dB ATTENUATION SW24
-20dB ATTENUATION
LED CONTROL
SW19
8KHz HIGH CUT 2
1 3
OUTPUTT4 SW22
PHASE
SW21
GND LIFT
SW20
+20dB gain
CH2
2 1 3 4
CN9
INPUT
3c 5e 1a 4d 2b
INPUT 3c
5e 1a 4d 2b
LINK
SW17
-20dB ATTENUATION SW18
-20dB ATTENUATION
LED CONTROL
SW13
8KHz HIGH CUT 2
1 3
OUTPUTT3 SW16
PHASE
SW15
GND LIFT
SW14
+20dB gain
CH3
2 1 3 4
CN2
INPUT
3c 5e 1a 4d 2b
INPUT 3c
5e 1a 4d 2b
CN4 LINK
SW11
-20dB ATTENUATION SW12
-20dB ATTENUATION
LED CONTROL
SW7
8KHz HIGH CUT 2
1 3
OUTPUTT2 SW10
PHASE
SW9
GND LIFT
SW8
+20dB gain
CH4
2 1 3 4
CN5
INPUT
3c 5e 1a 4d 2b
INPUT 3c
5e 1a 4d 2b
LINK
SW5
-20dB ATTENUATION SW6
-20dB ATTENUATION
LED CONTROL
SW1
8KHz HIGH CUT 2
1 3
OUTPUTT1 SW4
PHASE
SW3
GND LIFT
SW2
+20dB gain
3. Block Diagram
--- 3 ---

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TR5
HR
R68
47K5
R65
1K2
R72
511R
R73
1K00
R74
2K21
R75
4K22 R76
8K06
R78
16K5
R79 33K2
R80
39K2
+VCC-CH1
R66
560R
C26
104P
R67 33K2
5
42
U7A
LM339
1
6 7
U7B
LM339
8 914
U7C
LM339
10 11 13
U7D
LM339
5
42
U8A
LM339
1
6 7
U8B
LM339
8 914
U8C
LM339
10 11 13
U8D
LM339
LD17 GR LD18 GR LD19 GR LD20 GR LD21 GR LD22 YEL LD23 YEL LD24 RED
+VCC-CH1
R77 22R
-VCC-CH1
C24 47/25V
312
U8E
LM339
312
U7E
LM339
+VCC-CH1 +VCC-CH1
+VCC-CH1
1
2
3
4
5
6
7
8
9
10
11
12
CN3 12P-2.0
-VCC-CH1
SW17 PS-42E85L SW18
PS-42E85L
R60
470K
R69
51K1
R61
470K
R70
51K1
( -20dB ) ( -20dB )
LED15
GR
LED14
GR
SW14
PS-22E85L
(+20dB)
SW16
PS-42E85L (PHASE)
SW15
PS-22E85L
( GND LIFT )
1 3
4 5 6
2
SW13
PS-22E85L
C27
0.47/50V
(8KHZ HIGH CUT)
LED18
GR
LED17
GR
LED16
GR
LED13
GR
TR6
HR
R64
470R
R63
15K
+VCC-CH1
R71
39K2
DI4FP.Sch
Titel Size File: Date: Drawn By:
Sheet
RevisionModel No:
3-Jul-2002 TASY J.S.
DI4FP
11 of
DI4 II
V1.0
A2
3 21
U9A
2068M
5 67
U9B 2068M
C21 153(M)
C22 10P
R59
220K
R55 11K
R62 11K
C19
47P
D13
4148
C23
47/25V
+VCC-CH1
D12
4148
R58
1K
84
U9C
2068M
D11
4148
D15
4148
D14
4148
R57
47K5
R56
47K5
+VCC-CH1
C20
470/10V
C25 1/50V
-VCC-CH1
-VCC-CH1
-VCC-CH1
TR7
HR
R95
47K5
R92
1K2
R99
511R
R100
1K00
R101
2K21
R102
4K22 R103
8K06
R105
16K5
R106 33K2
R107
39K2
+VCC-CH1
R93
560R
C35
104P
R94 33K2
5
42
U10A
LM339
1
6 7
U10B
LM339
8 914
U10C
LM339
10 11 13
U10D
LM339
5
42
U11A
LM339
1
6 7
U11B
LM339
8 914
U11C
LM339
10 11 13
U11D
LM339
LD25 GR LD26 GR LD27 GR LD28 GR LD29 GR LD30 YEL LD31 YEL LD32 RED
+VCC-CH1
R104 22R
-VCC-CH1
C33 47/25V
312
U11E
LM339
312
U10E
LM339
+VCC-CH1 +VCC-CH1
+VCC-CH1
1
2
3
4
5
6
7
8
9
10
11
12
CN4 12P-2.0
-VCC-CH1
SW23 PS-42E85L SW24
PS-42E85L
R87
470K
R96
51K1
R88
470K
R97
51K
( -20dB ) ( -20dB )
LED21
GR
LED20
GR
SW20
PS-22E85L
(+20dB)
SW22
PS-42E85L (PHASE)
SW21
PS-22E85L
( GND LIFT )
1 3
4 5 6
2
SW19
PS-22E85L
C36
0.47/50V
(8KHZ HIGH CUT)
LED24
GR
LED23
GR
LED22
GR
LED19
GR
TR8
HR
R91
470R
R90
15K
+VCC-CH1
R98
39K2
3 21
U12A
2068M
5 67
U12B 2068M
C30 153(M)
C31 10P
R86
220K
R82 11K
R89
11K
C28
47P
D18
4148
C32
47/25V
+VCC-CH1
D17
4148
R85
1K
84
U12C
2068M
D16
4148
D20
4148
D19
4148
R84
47K5
R83
47K5
+VCC-CH1
C29
470/10V
C34 1/50V
-VCC-CH1
-VCC-CH1
-VCC-CH1
TR3
HR
R41
47K5
R38
1K2
R45
511R
R46
1K00
R47
2K21
R48
4K22 R49
8K06
R51
16K5
R52 33K2
R53
39K2
+VCC-CH1
R39
560R
C17
104P
R40 33K2
5
42
U4A
LM339
1
6 7
U4B
LM339
8 914
U4C
LM339
10 11 13
U4D
LM339
5
42
U5A
LM339
1
6 7
U5B
LM339
8 914
U5C
LM339
10 11 13
U5D
LM339
LD9 GR LD10 GR LD11 GR LD12 GR LD13 GR LD14 YEL LD15 YEL LD16 RED
+VCC-CH1
R50 22R
-VCC-CH1
C15 47/25V
312
U5E
LM339
312
U4E
LM339
+VCC-CH1 +VCC-CH1
+VCC-CH1
1
2
3
4
5
6
7
8
9
10
11
12
CN2 12P-2.0
-VCC-CH1
SW11
PS-42E85L SW12
PS-42E85L
R33
470K
R42
51K1
R34
470K
R43
51K1
( -20dB ) ( -20dB )
LED9
GR
LED8
GR
SW8
PS-22E85L
(+20dB)
SW10
PS-42E85L (PHASE)
SW9
PS-22E85L
( GND LIFT )
1 3
4 5 6
2
SW7
PS-22E85L
C18
0.47/50V
(8KHZ HIGH CUT)
LED12
GR
LED11
GR
LED10
GR
LED7
GR
TR4
HR
R37
470R
R36
15K
+VCC-CH1
R44
39K2
3 21
U6A
2068M
5 67
U6B 2068M
C12 153(M)
C13 10P
R32
220K
R28 11K
R35 11K
C10
47P
D8
4148
C14
47/25V
+VCC-CH1
D7
4148
R31
1K
84
U6C
2068M
D6
4148
D10
4148
D9
4148
R30
47K5
R29
47K5
+VCC-CH1
C11
470/10V
C16 1/50V
-VCC-CH1
-VCC-CH1
-VCC-CH1
TR1
HR
R13
47K5
R11
1K2
R18
511R
R19
1K00
R20
2K21
R21
4K22 R22
8K06
R24
16K5
R25 33K2
R26
39K2
+VCC-CH1
R12
560R
C8
104P
R14 33K2
5
42
U1A
LM339
1
6 7
U1B
LM339
8 914
U1C
LM339
10 11 13
U1D
LM339
5
42
U2A
LM339
1
6 7
U2B
LM339
8 914
U2C
LM339
10 11 13
U2D
LM339
LD1 GR LD2 GR LD3 GR LD4 GR LD5 GR LD6 YEL LD7 YEL LD8 RED
+VCC-CH1
R23 22R
-VCC-CH1
C6 47/25V
312
U2E
LM339
312
U1E
LM339
+VCC-CH1 +VCC-CH1
+VCC-CH1
1
2
3
4
5
6
7
8
9
10
11
12
CN1 12P-2.0
-VCC-CH1
SW5 PS-42E85L SW6
PS-42E85L
R6
470K
R15
51K1
R7
470K
R16
51K1
( -20dB ) ( -20dB )
LED3
GR
LED2
GR
SW2
PS-22E85L
(+20dB)
SW4
PS-42E85L (PHASE)
SW3
PS-22E85L
( GND LIFT )
1 3
4 5 6
2
SW1
PS-22E85L
C9
0.47/50V
(8KHZ HIGH CUT)
LED6
GR
LED5
GR
LED4
GR
LED1
GR
TR2
HR
R10
470R
R9
15K
+VCC-CH1
R17
39K2
3 21
U3A
2068M
5 67
U3B 2068M
C3 153(M)
C4 10P
R5
220K
R1 11K
R8
11K
C1
47P
D3
4148
C5
47/25V
+VCC-CH1
D2
4148
R4
1K
84
U3C
2068M
D1
4148
D5
4148
D4
4148
R3
47K5
R2
47K5
+VCC-CH1
C2
470/10V
C7 1/50V
-VCC-CH1
-VCC-CH1
-VCC-CH1
(CH4)
(CH3)
(CH1) (CH2)
4. Schematic Diagram
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1.All the GND haven't connected with enclosure
2.Working voltageDC24V(stable: 4groups of independent voltage supply and not connect with each other
3.:presents copper foil.
2 1 3 4
CN12
XLMN-3PH 3c
5e 1a 4d 2b
CN-JY6351G-02
3c 5e 1a 4d 2b
CN-JY6351G-02
LINK
CH1 INPUT
C20
100P
R18 1K R19 1K
C22
47/25V
1
2
3
4
5
6
7
8
9
10
11
12
CN13
12P-2.0
[ RED LINE ]
+VCC-CH1
1 4
2 3 5
T4
OT-DI1
R16 47R L4
220uH
R17 33R 2
1 3 4
CN11
XLR-3MALE
R20
4K7
C21
102P
TR4
78L24
C14
47/50V C15
220/50V
D13
4148
D15
4148
D14
4148 D16
4148
+VCC-CH1
+VCC-CH1 +29VDC
-VCC-CH1
-VCC-CH1
1 2
CN6
AC24V IN
DI4PU.Sch
Titel Size File: Date: Drawn By:
Sheet
RevisionModel No:
21-Jun-2002 TASY J.S.
DI4PU
11 of
DI4 II
v1.0
A3
2 1 3 4
CN9
XLMN-3PH 3c
5e 1a 4d 2b
CN-JY6351G-02
3c 5e 1a 4d 2b
CN-JY6351G-02
LINK
CH2 INPUT
C17
100P
R13 1K R14 1K
C19
47/25V
1
2
3
4
5
6
7
8
9
10
11
12
CN10
12P-2.0
[ RED LINE ]
+VCC-CH1
1 4
2 3 5
T3
OT-DI1
R11 47R L3
220uH
R12
33R 2
1 3 4
CN8
XLR-3MALE
R15
4K7
C18
102P
TR3
78L24
C11
47/50V C12
220/50V
D9
4148
D11
4148
D10
4148 D12
4148
+VCC-CH1
+VCC-CH1 +29VDC
-VCC-CH1
-VCC-CH1
1 2
CN6
AC24V IN
2 1 3 4
CN2
XLMN-3PH 3c
5e 1a 4d 2b
CN-JY6351G-02
3c 5e 1a 4d 2b
CN-JY6351G-02
LINK
CH3 INPUT
C6
100P
R8 1K R9 1K
C7
47/25V
1
2
3
4
5
6
7
8
9
10
11
12
CN7
12P-2.0
[ RED LINE ]
+VCC-CH1
1 4
2 3 5
T2
OT-DI1
R6
47R L2
220uH
R7
33R 2
1 3 4
CN6
XLR-3MALE
R10 4K7
C10
102P
TR2
78L24
C8
47/50V C9
220/50V
D5
4148
D7
4148
D6
4148 D8
4148
+VCC-CH1
+VCC-CH1 +29VDC
-VCC-CH1
-VCC-CH1
1 2
CN6
AC24V IN
2 1 3 4
CN5
XLMN-3PH 3c
5e 1a 4d 2b
CN-JY6351G-02
3c 5e 1a 4d 2b
CN-JY6351G-02
LINK
(CH4)
C1
100P
R3 1K R4 1K
C2
47/25V
1
2
3
4
5
6
7
8
9
10
11
12
CN4
12P-2.0
[ RED LINE ]
+VCC-CH1
1 4
2 3 5
T1
OT-DI1
R1 47R L1
220uH
R2 33R
2 1 3 4
CN3
XLR-3MALE
R5 4K7
C5
102P
TR1
78L24
C3
47/50V C4
220/50V
D1
4148
D3
4148
D2
4148 D4
4148
+VCC-CH1
+VCC-CH1 +29VDC
-VCC-CH1
-VCC-CH1
1 2
CN6
AC24V IN
(CH3)
(CH1)
(CH2)
CH4 INPUT
CH3 OUTPUT
CH4 OUTPUT
CH1 OUTPUT CH2 OUTPUT
--- 5 ---

1 2 3 4
A B C D
4321
D C B A
CN13
CN4
DI4 II.Sch
Titel Size File: Date: Drawn By:
Sheet
RevisionModel No:
28-Oct-2002 TASY J.S
DI4 II Wiring Diagram
11 of
A4
OT-DI1
DI4PU
AC IN
GND
LOOP TRANSFORMER
PT-DI4
110V
220V
RED
BLUE
LED
PWR SW
CN10
OT-DI1 CN7
OT-DI1 CN4
OT-DI1
CN3 CN2 CN1
DI4FP
CN1CN14
DI-4 II
DI 4 II WIRING DIAGRAM
5. Wiring Diagram
--- 6 ---

PCB : DI4FP Top Layer
PCB : DI4FP Top Solder Mask PCB : DI4FP Bottom Layer PCB : DI4FP Bottom Solder Mask
6. PCB Layout
--- 7 ---

PCB : DI4FP Bottom Overlay
PCB : DI4FP Top Overlay
PCB : DI4FP Drill Drawing Plots
Hole Size Hole Count 24mil (0.6mm) 308 31mil (0.8mm) 392 35mil (0.9mm) 48 126mil (3.2mm) 8 Totals 756
--- 8 ---

DI4FP PCB LAYOUT
PCB : DI4PU Top Overlay
PCB : DI4PU Top Layer
PCB : DI4PU Top Solder Mask
--- 9 ---

PCB : DI4PU Bottom Overlay PCB : DI4PU Bottom Layer PCB : DI4PU Bottom Solder Mask
--- 10 ---

PCB : DI4PU Drill Drawing Plots
Hole Size Hole Count 24mil (0.6mm) 303 31mil (0.8mm) 80 35mil (0.9mm) 64 39mil (1.0mm) 16 47mil (1.2mm) 6 55mil (1.4mm) 6 59mil (1.5mm) 1 63mil (1.6mm) 21 110mil (2.8mm) 2
Totals 499
--- 11 ---

DI4IN PCB LAYOUT
PCB : DI4IN Top Layer PCB : DI4IN Top Solder Mask
PCB : DI4IN Top Overlay PCB : DI4IN Bottom Layer
PCB : DI4IN Bottom Solder Mask PCB : DI4IN Drill Drawing Plots
Hole Size Hole Count
24mil (0.6mm) 2
87mil (2.2mm) 10
Totals 12
--- 12 ---

--- 13 ---

--- 14 ---

MODEL No: DI 4-II
7. Exploded View & Mechanical Parts List
--- 15 ---

S/N Part No Description Specification Qty
1 MA03291 Front panel DI4 ALTO 1
2 NMBA02 PWR SW button φ15*17 1
3 NPL285 PWR SW button cover φ6.5*2.5 YELLOW C 1
4 NPL275 Light-guided button φ3*W6*18.3 transparent PC 24
5 NPL325 Light-guided pillar φ3.1*85 2
6 NI02099 LED separating slot 7.6*4.5*35.5 4
7 PCB semi-product P-DI4 FP 1
8 MSCB28 Black screw 3*4 11
9 chassis combination A-DI4-chassis combination 1
10 MSCB38 Black screw 3*7 4
11 Front panel combination 1
12 HSWA13 PWR SW SDDLB 1007U 1
13 MSCB34 Black screw 3*6 2
14 MSCB13 Black screw 3*6 14
15 TD00107 Loop transformer DI4 1
16 NLXC07 Rubber coil φ20*φ60*2tB 2
17 MSCB64 Black screw 4*35 1
18 MI01424 Separating cap φ74.5*35.2(DI4) 1
19 MFSS04 Spring washer φ4*φ7*1t 2
20 MSTC04 Multi-colored washer 4m/m 2
21 MFST01 Outer gear washer φ4*φ8*0.5t 2
22 HA02189 Single-ended terminal 100mm black 2
23 PCB semi-product P-DI4PU 1
24 MI01404 Separating cap DI4 4
25 MB02203 Rear panel DI4 1
26 HCSA16 AC socket (S)315-B 1
27 MSCB35 Black screw 3*10 2
28 MSCB58 Black screw 3*10 16
29 HCSM59-T1 MIC jack screw Hexagon JY-6531G-02-250 8
30 HCSM59-T2 MIC jack washer Circle JY-6531G-02-250 8
31 MC00432 Top Cover DI4 1
32 NI02085 Fixed sleeve of PWR SW φ22*9.6 1
Mechanical Parts List
--- 16 ---

Class Part No Description Specification Insert location Remark
PF04055 DIRECT INJECTION BOX DI4 Ⅱ_ALTO_230V
├0001 TD00107 transformer-RS PT-DI4
├0002 NI03252 switch key 32*12.53*14_V1.0
├0003 NI03251 knob 19.3*19.2*7_V1.0
├0004 NI03253 bole 15*15*10.7_V1.0
├0005 NI00443 rubber coil φ20*φ60*2tB
├0006 NI00501 self-adhere foot cushion 12.7*9*3t(SF-004)
├0007 NI00261 sleeve φ5*20mm 1.AC socket, SW
├0008 NI00218 cable tie ALT-102SB
├0009 NI01156 button φ3*W6*18.3
├0010 NF00966 instruction DI4 ALTO_V2.4
├0011 NF00061 assurance card-RS-C ALTO_V1.1
├0012 NE05004 label ALTO PF_V1.2
├0013 NE07652 label DI4
├0014 NB02164 barrier X23,34,40
├0015 NB02163 barrier X23,34,40
├0016 NB02088 carton (1H) ALTO 19"_V1.1
├0017 NA00279 clip-chain bag 0.04t*100*150mm_V1.0
├0018 NA00862 PE bag-RS 0.04t*580*300 mm
├0019 NA00137 clip-chain bag 5*7
├0020 MG00025 screw-RS M3*6 1.top cover,
front panel
├0021 MG00041 screw M3*6 1.PWR SW
├0022 MG00036 screw M3*4 DI4FP*8, DI4PU*3,
front panel*6
├0023 MG00061 screw-RS M3*10 1.balanced jack
├0024 MF00038 washer-RS φ4*φ7*1t 1.GND,PT
├0025 MF00048 washer-RS φ4*φ8*0.5t 1.GND
├0026 ME00016 color nut 4m/m 1.GND,PT
├0027 MG00067 screw M4*35 1.PT
├0028 MF00061 MIC jack φ9.6*φ13*0.5t
├0029 MG00074 screw-RS M3*5 1.rear panel
├0030 ME00060 MIC jack JY-6351G-02-250
├0031 HD00021 glass tube fuse 100mA 250V φ5.2*20mm CSA/S/UL/VDE
├0032 HC00008 AC socket 3515 A TYPE(RF-2004-C-4.8)
├0033 HA00861 power cord Europe 3P LT-312+LT-501
├0034 HA02521 wire 2P-2P 250mm UL1007 28AWG blackred connnect DI4PU to
ACL2PWRSW
├0035 HA01315 signle terminal wiring 100 green/yellow
├0036 HA02189 signle terminal wiring 100mm PU board to GND
├0037 AD00012 twin adhesive-RS 90*120mm_V1.0
├0038 MG00042 screw M3*10 1.AC socket
├0039 MI01365 front board DI4_V1.5
├0040 HK04585 PC board P-ACL2PWRSW
│ ├0001 HB01389 PCB ACL2PWRSW(1*10)_VER041122
│ ├0002 HI00023 power switch SDDLB 1007U SW1
│ ├0003 SA00185 L.E.D-RS-ACT φ3 blue (6554-TLHB4400) LD1
│ ├0004 HC00076 connector(male) 2P 2.5mm 180° CN1
│ ├0005 HA01798 wire-RS 240mm L5R5 PT2 TO AC socket
│ ├0006 HA01925 jump 10mm R1
│ ├0007 AC00603 lead free soldering bar S100
│ ├0008 MI02766 fixed bracket ACL4 1.0t*26*8.5*22.5_V1.1
│ ├0009 MG00041 screw M3*6 fixed SW button*2
│ └0010 MF00037 washer φ3.2*φ5*0.8t fixed SW button*2
├0041 HK01460 PC board P-DI4IN
│ ├0001 HB00712 PCB DI4IN)1*24)_VER020624
│ ├0002 HC00371 MIC jack SCJ-0658-1-Y CN4,CN5
│ └0003 AC00603 lead free soldering bar S100
├0042 NE16992 lable-RS 210-240V~50/60Hz_V1.0
├0043 HK01458 PC board P-DI4PU-DIP
8. BOM List
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Class Part No Description Specification Insert location Remark
│ ├0001 RA01109 fixed resistor 1/4W 1KΩR13,R14,R18,R19,R3,R4,R8,R9
│ ├0002 HC00111 balance MIC jack 99M-108SP1 CN11,CN3,CN6,CN8
│ ├0003 CB00260 electrolytic capacitor 47uF/35V φ5*11mm 2.5mm C19,C2,C22,C7
│ ├0004 CB00041 electrolytic capacitor 47uF/50V φ6*11mm C11,C14,C3,C8
│ ├0005 CB00206 electrolytic capacitor 220uF/50V 105°C TL φ10*16mm(JAMICON) C12,C15,C4,C9
│ ├0006 CN00038 inductance-RS 220uH(LGA0307-221K) L1,L2,L3,L4
│ ├0007 HC00261 connector(male) 12P 2.0mm 180° CN10,CN13,CN4,CN7
│ ├0008 HC00088 connector(male) 2P 3.9mm 180°(#3921) CN1
│ ├0009 RA00963 fixed resistor 1/8W 1.2KΩR21
│ ├0010 HC00405 balance MIC jack 99M-107SP1L2 female 90°NO PUSH CN12,CN2,CN5,CN9
│ ├0011 HC00076 connector(male) 2P 2.5mm 180° CN14
│ ├0012 TF00059 output transformer OT-DI1 T1,T2,T3,T4
│ ├0013 MI01404 separating shade DI4_V1.3
│ ├0014 CF00140 metal-film capacitor MSC 0.1uF/63V 5% CASE01 C23
│ ├0015 HK01459 PC board P-DI4PU-SMD
│ │ ├0001 HB00711 PCB DI4PU(1*3)_VER050910
│ │ ├0002 RD00304 SMD fixed resistor 1/10W 33Ω±5% 0603 R12,R17,R2,R7
│ │ ├0003 RD00065 SMD fixed resistor 1/10W 47Ω±5% 0603 R1,R11,R16,R6
│ │ ├0004 RD00093 SMD fixed resistor 1/10W 4.7KΩ±5% 0603 R10,R15,R20,R5
│ │ ├0005 SE00011 SMD rectifier diode RLS4148 0.5A (LL-34) D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,
D11,D12,D13,D14,D15,D16,D17
│ │ ├0006 CI00059 SMD ceramic capacitor 0603 100PF/50V NPO ±5% C1,C17,C20,C6
│ │ ├0007 CI00065 SMD ceramic capacitor 0603 0.001uF/50V X7R ±10% C10,C18,C21,C5
│ │ └0008 AE00553 SenJu solder paste M705-GRN360-K2-V 0.5KG/bottle
│ ├0016 AC00603 lead free soldering bar S100
│ └0017 SD00292 integrated circuit NJM78L24A(TO92)/(JRC) TR1,TR2,TR3,TR4
├0044 MI01426 separating shade-RS DI4φ75.7*35.3*0.8t_V1.3
├0045 MC01007 top cover-RS DI4 Ⅱ_V1.0
├0046 MA07141 panel-RS DI4 ⅡALTO_V1.0
├0047 MB05642 rear board-RS DI4 ⅡCHINA_V1.0
├0048 MB05641 chassis-RS DI4 Ⅱ_V1.0
├0049 NB05642 inner case-RS DI4 ⅡALTO_V1.0
├0050 HK09077 PC board P-DI4 ⅡFP-DIP
│ ├0001 RA01121 fixed resistor 1/4W 470ΩR10,R37,R64,R91
│ ├0002 RA00215 fixed resistor 1/4W 1.2KΩR11,R38,R65,R92
│ ├0003 SA00071 L.E.D φ3 green LVG2340/A
LED1,LED2,LED3,LED4,LED5,LED6,LED7,L
ED8,LED9,LED10,LED11,LED12,LED13,LED
14,LED15,LED16,LED17,LED18,LED19,LED
20,LED21,LED22,LED23,LED24,LD1,LD2,LD
3,LD4,LD5,LD10,LD11,LD12,LD13,LD17,LD1
8,LD19,LD20,LD21,LD25,LD26,LD27,LD28,L
D29,LD9
│ ├0004 SA00073 L.E.D φ3 yellow LVY2340/A LD14,LD15,LD22,LD23,LD30,LD31,LD6,LD7
│ ├0005 SA00072 L.E.D φ3 red LI2340/A LD16,LD24,LD32,LD8
│ ├0006 NI01831 separating 8.5*4*17 black LED2,LED4,LED5,LED8,LED10,LED11,LED1
4,LED16,LED17,LED20,LED22,LED23
│ ├0007 NI01772 LED spacer support LEDS-7 7mm LED1,LED3,LED6,LED7,LED9,LED12,LED13
,LED15,LED18,LED19,LED21,LED24
│ ├0008 HI00163 push-button switch 2 stage 12P PS-42E85 SW10,SW11,SW12,SW16,SW17,SW18,SW2
2,SW23,SW24,SW4,SW5,SW6
│ ├0009 HI00162 push-button switch 2 paragraphs 6p PS-22E8552L SW1,SW3,SW7,SW8,SW9,SW13,SW14,SW1
5,SW19,SW2,SW20,SW21
│ ├0010 CC00030 mylar capacitor 0.033uF/100V 10% C12,C21,C3,C30
│ ├0011 CB00009 electrolytic capacitor 1uF/50V φ4*7mm C16,C25,C34,C7
│ ├0012 CB00260 electrolytic capacitor 47uF/35V φ5*11mm 2.5mm C14,C15,C23,C24,C33,C5,C6,C32
│ ├0013 HA02078 wire-RS 12P(公)-12P(母) 220mm UL1007 28AWG CN1,CN2,CN3,CN4
│ ├0014 CB00246 electrolytic capacitor 0.47uF/50V ψ4*7mm C18,C27,C36,C9
│ ├0015 CB00064 electrolytic capacitor 470uF/16V φ10*12mm C11,C2,C20,C29
│ ├0016 AC00603 lead free soldering bar S100
│ ├0017 HK01457 PC board P-DI4FP-SMD
│ │ ├0001 HB00710 PCB DI4FP(1*4)_VER020613
│ │ ├0002 RD00361 SMD precise resistor 1/10W 511Ω±1% 0603 R18,R45,R72,R99
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