Infinity K600 User manual

K600
Automotive Amplifier
SERVICE MANUAL
Infinity Systems, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797
Rev1.111/2016
Released by Global Quality
600W x 1 Car Amplifier 400 watts RMS x 1 at 4 ohms,Dynamic Bass Optimizer,preamp
and speaker-level inputs
CONTENTS
2
5
6
7
25
11
26
Safety Instruction, Warning & Notes
Specifications
Set Block Diagram
Schematic Diagrams
Layout Diagrams
Set Mechanical Exploded View
Packaging View
Spare Parts List
Revision List 27
28

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings.Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the
third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the
point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, or the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped.
15. Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids, such as vases,
are placed on the apparatus.
16. To completely disconnect this apparatus from the AC Mains, disconnect the power supply cord plug from the AC
receptacle.
17. The mains plug of the power supply cord shall remain readily operable.
18. Do not expose batteries to excessive heat such as sunshine, fire or the like.
For Products That Transmit and
Receive RF Energy:
FCC Regulations (USA Only)
FCC Information For Users
This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) This device
may not cause harmful interference; and (2) this device must
accept any interference received, including interference that
may cause undesired operation.
Radio and Television Interference
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause interference to radio
or television reception, which can be determined by turning
the equipment off and then on, the user is encouraged to try
to correct the interference by one or more of the following
measures:
•Increase the separation between the equipment and
receiver.
•Connect the equipment to a different outlet so that the
equipment and receiver are on different branch circuits.
•Consult the dealer or an experienced radio/TV technician
for help.
NOTE: Changes or modifications not expressly approved
by Harman could void the user’s authority to operate the
equipment.
IC Statement and Warning (Canada Only)
This Class B digital apparatus complies with Canadian ICES-
003. Cet appareil numérique de la classe B est conforme à la
norme NMB-003 du Canada.
For Canadian Model
This Class B digital apparatus complies with Canadian
ICES-003.
Modèle pour les Canadien
Cet appareil numérique de la classe B est conforme à la
norme NMB-003 du Canada.
For Products with Radio Receivers
That Can Use an External Antenna:
CATV or Antenna Grounding
If an outside antenna or cable system is connected to this
product, be certain that it is grounded so as to provide some
protection against voltage surges and static charges. Section
810 of the National Electrical Code, ANSI/NFPA No. 70-1984,
provides information with respect to proper grounding of the
mast and supporting structure, grounding of the lead-in wire
to an antenna discharge unit, size of grounding conductors,
location of antenna discharge unit, connection to grounding
electrodes and requirements of the grounding electrode.
Note to CATV System Installer:
This reminder is provided to call the CATV (cable TV) system
installer’s attention to article 820-40 of the NEC, which
provides guidelines for proper grounding and, in particular,
specifies that the cable ground shall be connected to the
grounding system of the building, as close to the point of
cable entry as possible.
For CD/DVD/Blu-ray Disc™Players:
Caution:
This product uses a laser system. To prevent direct exposure
to the laser beam, do not open the cabinet enclosure or defeat
any of the safety mechanisms provided for your protection.
DO NOT STARE INTO THE LASER BEAM. To ensure proper use
of this product, please read the owner’s manual carefully and
retain it for future use. Should the unit require maintenance
or repair, please contact your local Harman Kardon service
center. Refer servicing to qualified personnel only.
For Products That Include Batteries:
Instructions for Users on Removal and Disposal of
Used Batteries.
CAUTION
Risk of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
Alkaline batteries are considered nonhazardous.
Rechargeable batteries (i.e., nickel cadmium, nickel metal-
hydride, lithium and lithium-ion) are considered hazardous
household materials and may pose an unnecessary health
and safety risk.
In the European Union and other locations, it is illegal to
dispose of any battery with household trash. All batteries
must be disposed of in an environmentally sound manner.
Contact your local waste management officials for information
regarding the environmentally sound collection, recycling and
disposal of used batteries.
To remove the batteries from your equipment or remote
control, reverse the procedure described for inserting
batteries in the owner’s manual.
For products with a built-in battery that lasts for the lifetime of
the product, removal may not be possible for the user. In this
case, recycling or recovery centers handle the dismantling of
the product and the removal of the battery. If, for any reason, it
becomes necessary to replace such a battery, this procedure
must be performed by authorized service centers.
Important Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK. DO NOT OPEN.
THE LIGHTNING FLASH WITH AN ARROWHEAD SYMBOL,
WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO
ALERT THE USER TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” WITHIN THE PRODUCT’S
ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO
CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL
TRIANGLE IS INTENDED TO ALERT THE USER TO
THE PRESENCE OF IMPORTANT OPERATING AND
MAINTENANCE (SERVICING) INSTRUCTIONS IN THE
LITERATURE ACCOMPANYING THE PRODUCT.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE.


Each precaution in this manual should be followed during servicing.
Components identified with the IEC symbol in the parts list are special significance to safety. When replacing a component identified with
, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in the
parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably
insulated from the supply circuit before retuming the product to the customer.
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and
semiconductor "chip" components.
The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to
prevent electrostatic charge build-up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges
sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement
ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the
chassis or circuit assembly into which the device will be installed.
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together
or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.
CAUTION :


SAFETY PRECAUTIONS
The following check should be performed for the continued
protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
between the earth ground and all exposed metal parts of the
appliance (input/output terminals, screwheads, metal
overlays, control shaft, etc.). Plug the AC line cord of the
appliance directly into a 120V AC 60Hz outlet and turn the
AC power switch on. Any current measured must not exceed
o.5mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A
POTENTIAL SHOCK HAZARD AND MUST BE
CORRECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
AC Leakage Test
Leakage
current
tester
Reading should
not be above
0.5mA
Earth
ground


K600SPECIFICATIONS
Channel： 1
Output： 400WRMSx1ch（4ohms）,14.4VDC0.1%THD
600WRMSx1ch（2ohms）,14.4VDC0.1%THD
Powermax：730WRMSx1ch（2ohms）,15.5VDC10%THD
FrequencyResponse：15‐330Hz(‐3dB)
S/N（@1W）: 80dB
Currentmax： 60A
Fuse： 35Ax2
Size(LxWxH): 315mmx229mmx102mm
Weight： 2.8Kg

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
power supply
GND
+12V
23
1
4
A
LO
Hi
Hi2
A2
L input
input selector
ON/OFF
POWER PROT
REM
P1
Hi 输入自动开机.
GAIN
min-max
LOW Pass
32-320Hz
BASS
0-9dB
PHASE
0-180°
A
2Ω/4Ω
Class D Audio Power Amplifier
A13
S D
G
S D
G
Driver
Integrator
comparator
23
1
4
A
LO
Hi
Hi2
A2
R input
input selector
limit
1
2
3
LED Leve indicator
-35-0dB
SET BLOCK DIAGRAM

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
PGND
+12V
22 1
1F1PA 35A
44 3
3F1PB
35A
35A*2
C1P
105
PGND
P+12V
R28P
2K
R29P 2K
S D
G
M1P
IRF3205
SD
G
M3P
IRF3205
R34P
47R
R38P
47R
S D
G
M2P
IRF3205
R35P
47R
SD
G
M4P
IRF3205
R39P
47R
P+12V
C41P
3300uF/25V
C42P
3300uF/25V
C40P
3300uF/25V
R51P
33R/0.5W
C38P 102
C37P 101
C61P 103
C11P 104
C19P
472
R50P
33R/0.5W C17P
472
D6P RS1G
D7P RS1G
-B
D9P
RS1G
D8P
RS1G
D10P
RS1G
D11P
RS1G
R16P
22R/0.5W
C18P
102
C45P
681/1KV
C51P
104/250V
IN
3
IN
1OUT 2D15P
MUR1620CA
IN
3
IN
1
OUT 2
D17P
MUR1620CT
GND
C49P
681/1KV
C47P 681/1KV
C48P 681/1KV
C46P
681/1KV
R53P
47R/1W
C50P
104/250V
C54P
2200uF/100V
C53P
103/250V
C52P
103/250V
C56P
2200uF/100V
R56P
12K/1W
R57P
12K/1W
+B
-B
C21P
220uF/35V
C22P
220uF/35V
C27P
104
C28P
104
C31P
100uF/25V
C32P
100uF/25V
C29P
104 C26P
104
+12V
-12V
R15P
22R/0.5W
C16P
102
R12P
3.3K
C15P
104
R11P
33K
B
CE
Q7P
2SC1815
D13P
BAS316
SD
D19P
BAS316
C62P
106
R9P
10K
PGND GND
R17P
10R/1W
1 2
R55P
10R/1W
C20P
220uF/35V
C24P
104
C30P
100uF/25V
C25P
104
+12V-B
1000V
3
4
5
6
8
1
2
7
9
11
12
13
14
T1P
4.5:25.5:7.5:7.5:7.5
1CN1P
CN1
1
CN3P
CN1
1
CN2P
CN1P
REM
R13P
2.7K
D1P
RS1M D2P RS1M D3P
RS1M
D4P
RS1M
TP11P
TP3P
TP9P
TP10P
TP13P
TP12P
C66P
47uF/16V
C67P
104
R82P
10R/1W
GND
G1
OUT 3 IN
2
U3P
7912D*
G
2
O3 I
1
U2P
7812M*
G
2
O3 I
1
U5P
78D12
C70P
225/50V
C71P
225/50V
C72P
225/50V
G
2
O3 I
1
U15P
78M05
R85P
10R/1W
R84P
4.7R/1W
R83P
4.7R/1W
C73P
47uF/35V
PGND
P+12V
K5
K6
C68P
100uF/25V
PGND
REM
1 2
3 4
5 6
L5P
47UH
PROT
PGND
C76P
104
C77P
104
GND
R40P
12K/1W
R58P
12K/1W
C57P
470uF/100V
C58P
470uF/100V
SW2P
80C
5V_LED
AGND
R10P
0
LED_I
R16B
330R GND
1 2
43 U12
P185
MUTE
R59P
10R/1W
R60P
10R/1W
-B
+
1
-
2
FED
3
DT
4
CT
5
RT
6
GND
7
OP1
8E1 9
E2 10
OP2 11
VCC 12
13
REF 14
-15
+16
U10
TL494
R162
100K
R73P
20K
C65P
102p
C74P
104p
R77P
4.7K
Q37
2SA1015
C64P
105
R76P
10K
C75P
104p
R66P
47K
R67P
4.7K
C59P
104p
R70P
120K
R75P 100K
R74P
4.99K
D42
BAS316
Q29
2SC1815
EC
B
Q28
2SA1015
D38
BAS316
R71P
15K
R68P
4.7K
Q17
2SC1815
C124 104p
C69P
104
C80P
104p
PROT
R69P
36K
AK
D37
BAS316
p+12v
p+12v
R78P
11K
R72P
11K
R79P
1K
K5
K6
C79P
224
C63P
22U/16V
REM
EC
BQ11P
2SA1015
R26P
2K
E C
BQ12P
2SA1015
R27P
2K
R7P
4.7K
C4P
104
Q1P
2SC1815
R1P
4.7K
PGND
R31P
2.2K
R5P
2.2K
R23P
56K
R30P
2.2K
Q3P
2SC1815
Q4P
2SC1815
PGND
R6P
2.2K
R24P
56K
C9P
104
PGND
GREEN
RED
+12V.D
LED_I
RCA-ON
1 2 3
LED1P
LED
R65P
1K
D12P
BAS316
PGND
PGND PGND
GRE
RED
TO:功放指示灯
TP1P
R80P
22K
L15
252/100M
L17
252/100M
L16
252/100M
Q18
2SC1815
p+12v
p+12v
C78P
22U/16V
+12V.D
+12V.D
GND
PGND2
C60P
10U/25V
R89P
0
P+12V
SW1P
80C
AGND
+12V
GND
TP20P TP21P
D20P
BAS316
SD1
CIRCUIT DIAGRAM - POWER

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
R14
47.5K
C13
100pF
R15
22K
R17
22K
R16
22K
R18
22K
AGND
R8
270R/1W
R10
100K
R11
100K
R5
0R
R6
0R
C3
10uF/25V
C4
10uF/25V
C1
100uF/25V NP
AGND C11
101
2
1
RCA1A
R1
0R
FL
AGND
C17
101
HI 1
HI 2
Line
HI 1
HI 2
Line
R19
47.5K C16
101
R21
22K
R22
22K
R20
22K
R23
22K
AGND
R9
270R/1W
R13
100K
R12
100K
R7
0R
R4
0R
C9
10uF/25V
C8
10uF/25V
C2
100uF/25V NP
C12
101
4
3
RCA1B
AGND
C18
101
HI 1
HI 2
Line
HI 1
HI 2
Line
R27
4.7K
R24
4.7K
1
L1A L-4
3
L1B L-4
5
L1C
L-4
7
L1D
L-4
67
5
8
SW1B
SW2P3T-1333
1011
9
12
SW1C
SW2P3T-1333
23
1
4
SW1A
SW2P3T-1333
1415
13
16
SW1D
SW2P3T-1333
TP5
TP6
TP2
TP1
2
31
U1A
4580
6
57
U1B
4580
84
U4C
4580
AGND
C23
104
C47
224
+12V
AGND
R100
47K
Q6
2SC1815
R99
10K
RCA-PRO
RCA-PRO
RCA-PRO
TP3
PROT
6
57
U2B
4580
R29
4.7K
AGND
R30
2.2K
C14
101
AGND
R34
1K 2
31
U2A
4580
R39
3K
C15
101
AGND
INPUT
R49
2.4K R50
2.4K 6
57
U3B
4580
C25
330nF
C26
150nF
AGND
R44
3.3K R40
3.3K
R45
22K
AGND
C32
101
LPF 32-320Hz
2
31
U3A
4580
R56
4.7K
C31
101
AGND
2
3
1
U7A
4580
6
5
7
U7B
4580
D3
BAS316
D4
BAS316
R69
1K
R28
10K
R71
4.02K
R72
4.02K
AGND
+B
R57
4.7K
84
U5C
4580
C48
224
84
U6C
4580
C49
224
C24
104
-12V
R52
22K
6
57
U6B
4580
84
U3C
4580
C46
224
C28
101
R54
22K
AGND
R25
5.9K R26
44.2K
C30
101
AGND
84
U2C
4580
C45
224
84
U1C
4580
C44
224
LIMIT
PHASE0-180
R70
82K
R73
82K -B
AGND
Q5
2SA1015
R47
10K
R94
220K
-12V
R48
10K R97
47K
R95
2.2K
Q4
2SC1815
AGND
R98
10K
R96
47K
+12V
MUTE
12
3
SW2A
2P2T
45
6
SW2B
2P2T
4
5
6
VR1B
B20K
1
2
3
VR2A
B20K 4
5
6
VR2B
B20K
R87
340
C39
274
13
2
VR3A
B2K/NC
R3
39K
46
5
VR3B
B200K/NC
AGND
R88
1.8K/NC
R89
0R/NG
C36
824/NC
DBO
BOOSTER
BASS
SUB SONIC
R53
0R
2
31
U4A
4580
46
5
VR4B
500R
R105
270R/1W
R104
270R/1W
TP9 TP10
SIG
TP11
1.01V
R63
820R/NC
R64
1.3K/NC
TP13
R60
4.12K
输入0.2时输出约2.3V
6
57
U5B
4580
2
3
1U5A
4580
R65
12K
C40
101
R91
5.1K
C38
223
C41
104
R61
0R
R62
0R
AGND
R90
470K
R110
47K
AGND
TP12
84
U7C
4580
RCA-PRO
R108
30.9K
R106
47K
Q9
2SC1815
Q8
2SA1015
R107
10K
RCA-ON
PGND
C42
106
R109
4.7K
TP16
C65
106
TP17
C50
224
TP20
TP14
TP15
U5B同相输入时输出为反相
NRST
1
VDD
2
OSCI
3
OSCO
4
ADC
5ADC 6
ADC 7
SCL 8 VSS 9
SDA 10
U13
MT51F116-MG10BWT
R119
47K
R122
4.7K
L6
100M/1K
C61 106
1
2
3
CN1B
CON3
DGND
MCU5V
C54
104 R120
4.7K C58
NC
1
2
3
4
5
CN2B
CN5P
R115
22R
R114
22R
R113
22R
DGND
L5
100M/1K
LD_STB
LED_CLK
LED_DI/O
LED_5V
GND R116
0R
TO:LED
TO:升级口
DGND
LED_DI/O
LED_CLK
LD_STB
LED_5V
K601时R63，R64，R61，R53 NC
K601时VR4B为500R
Sampling
C62
106
R123
0R
SIG
2
31
U6A
4580
6
57
U4B
4580
R126
0R
C55
104
GND DGND
P+12V
AGND
R55
220R
C34
10uF/25V
D11
BAS316
C10
100uF/25V
R74
1M
AGND
GG
DD
S
S
Q1
J112
D12
BAS316
-12V DGND
MCU5V
Sampling
DGND
MCU5V
C60
106
C59
104
R86
0R/NC
VR3脚位反
C74
104
C75
104
C63
106
SIGN
5V_LED
5V_LED
PGND1
Q3
2SC1815
K
2A1
DZ1B
9.1V
R130
8.25K
R131
4.7K
R132
4.7K
C43
220uF/25V NP
C70
225
R31
0
CIRCUIT DIAGRAM - PRE AMP

1 2 3 4 5 6 78
A
B
C
D
8
7654321
D
C
B
A
1
MT1B
MT
1
MT2B
MT
1
MT3B
MT
1
MT4B
MT
1
MT6B
MT
1
MT5B
MT
C37B
104
C38B
104
PGND2 PGND
1
MT7B
MT
1
MT8B
MT
1
MT9B
MT
1
MT10B
MT
1
MT11B
MT
1
MT12B
MT
1
MT13B
MT
C24B
335/100V
R10B
4.7R
12 L1BA
47UH
+B
C10B
103/250V
R13B
4.7R
R11B
4.7R
R14B
4.7R
C9B335/250V
-B
C11B
102/250V
C23B
335/100V
R33B
10R/2W
C25B
224/100V
R35B
1K/1W
R36B
1K/1W
C27B102/500V
R30B
10K
C29B
100uF/25V NP
Q13B
2SC1815
Q12B
2SC1815
R39B
56K
SPK
PGND
1CNA1
CN-X
1CNB1
CN-X
1CNC1
CN-X
1CND1
CN-X
+
+
-
-
34 L3BB
47uH
12 L3BA
47uH
D6B
BAS316
R29B
4.7K
TP9B
TP6B PGND
TP8B
1 2
4 5
3
SW5B
JK 2901-124D-00
R43B
100K
C33B
22uF/16V
B
CE
Q8B
2SC1815
D10B
BAS316
+12V
C30B
104
SUB OUT+
Q9B
2SC1815
Q10B
2SC1815
D7B
5.1V
R41B
100K
R40B
10K
MUTE
TP10B
TP11B
R42B
100R
R45B
56K
SPK1
SPK1
S D
G
Q3B
38N20D
S D
G
Q4B
38N20D
S D
G
Q6B
38N20D
S D
G
Q7B
38N20D
R49B
100K
R34B
10R/2W
D11B
NC
D12B
NC
R24B
10K
R25B
10K
R22B
10K
R23B
10K
TP7B
TP7B
C18B
681
R32B
10R
R28B
4.7K
PROT
AGC
Hi
Lo
D20A
NC
D20B
NC
D20C
NC
D20D
NC
12
34
56
78
910
12
13 14
15 16
RJ67
CN16P
AGND
+12V
-12V
MUTE
SD
+12V-B
Hi
Lo
+B
AGC
GND
GND
GND
C28B
222/1KV
R50B
10R
AGND
C45B
104
GND
C46B
104
PGND
C47B
104
GND
COM
COM
COM
2
31
U1DA
4580
R62B
30.9K
C41B
101
AGND
R61B
5.1K
6
57
U1DB
4580
R65B
4.7K
C42B
101
AGND
R64B
4.7K
C40B
10uF
84
U1DC
4580
+12V
-12V
C43B
104
SIGN_OUT
SIGN
SIGN_OUT
R51B
100R
SD1
R19B
3.3K
C2B
102
R26B NC
C20B
105
R6B
10R/0.25W
R18B
17.8K
R20B
8.2K
1
2
3
4
5
6
8
710
11
12
9
13
14
15
16
U11
IRS2092S
VDD
CSD
IN
VSS
VREF
OC DT
COM
LO
VCC
VS
HO
VB
CSH
R4B
120K
C4B
102
R1B
560R
C5B
102
C3B
10uF
GND
COMP
+5V
C6B
106P
AGND
-5V
C7B
106P
AGND
AGND
D1B
MUR120
R7B
15R/0.25W
D2B
MUR120
R8B
10K R9B
4.7K
R21B
5.1K
+12V-B
G2
D
1S3
Q14B
APM2307AAC
+5V
AK
D3B
BAS316
SD
MUTE
R12B
39K
R3B
47K
R2B
13K
R5B
1K/2W
C32B
226/16V
Q17B
ZXTN25100
B
CE
Q15B
ZXTN25100
EC
B
Q16B
ZXTP25100
EC
B
Q18B
ZXTP25100
C8B
104
C22B
100uF/25V
SIGN_OUT
-12V
+12V
SD
MUTE
AGC
Hi
Lo
+B
-B
+12V-B
C1B
104
-B
12
34
56
78
910
12
13 14
15 16
APJ1A
CN16P
+B
C18A
106
+5V R30B
680R +12V
ZD2A
5.6V
AK
ZD1A
5.6V
C19A
106
R29A
680R
-5V
-12V
此部分为支板（小板）
C31B
22uF/25V
C14B
22uF/16V
AGND
-B
SIGN_OUT
C37B
105
C2L
101/1000V
AGND
R1L
0
R31B
4.7R
R28A
4.7R
C35B
106/16V C36B 106/16V
+5V -5V
R28B
100R
R29B
100R
C20A
104/250V
1
MT2
MT
1
MT1
MT
C38B
NC
CIRCUIT DIAGRAM - AMP

1 2 3 4 5 6
A
B
C
D
6
54321
D
C
B
A
GR4 23
GR3 24
GR2 26
GR1 27
GND 22
GND 25
GND 28
SG14/GR5 20
SG13/GR6 19
SG12/GR7 18
VDD 21
SG10/KS10 17
SG9/KS9 16 SG8/KS8
15
VDD 7 OSC
1
DI/O
2
CLK
3
STB
4
K1
5
K2
6
SG1/KS1
8
SG2/KS2
9
SG3/KS3
10
SG4/KS4
11
SG5/KS5
12
SG6/KS6
13
SG7/KS7
14
U101
ET6202
R24
51K
LED_DI/O
LED_CLK
LED_STB
LED_DI/O
LED_CLK
LED_STB
-35dB
-25dB
-20dB
-15dB
-12dB
-9dB
-6dB
-3dB -1dB
0dB
CH1
+5V
R21
10K R22 10K R23 10K
+5V
R25 1K
R26 1K
R28 1K
R29 1K
R30 1K
R31 1K
C101
104
R1A
33R
LED1A
0dB
R2A
33R
LED2A
-1dB
R3A
33R
LED3A
-3dB
R4A
33R
LED4A
-6dB
R5A
33R
LED5A
-9dB
R6A
33R
LED6A
-12dB
R7A
33R
LED7A
-15dB
R8A
33R
LED8A
-20dB
R9A
33R
LED9A
-25dB
R10A
33R
LED10A
-35dB
CH1
0dB -1dB -3dB -6dB -9dB -12dB -15dB -20dB -25dB -35dB
R27 1K
R32 1K
LED_DI/O
LED_CLK
LED_STB +5V
1 2
L1
030123000115
C102
106
C103
106
LED1
POWER LED
LED2
PROT LED
PROT LED-1
POWER LED-1
C2
104P
RED White
R102 0R
R101
0R
C1
104P
1
2
3
4
5
6
7
8
CON01
130123000141
CH1
CIRCUIT DIAGRAM - LED