Alico M5677 User manual

SERVICE MANUAL SERVICE MANUAL
MSP215BT
ION iAS01

CONTENTS
1. PRECAUTIONS -----------------------------------------------------------------------------------------------------------------------2
1-1 SAFETY PRECAUTIONS--------------------------------------------------------------------------------------------------------- 2-3
1-2 SERVICING PRECAUTIONS--------------------------------------------------------------------------------------------------------3
1-2-1 General Serving Precautions ------------------------------------------------------------------------------------------------3
1-2-2 Insulation Checking Procedure ---------------------------------------------------------------------------------------------4
1-3 ESD PRECAUTIONS ---------------------------------------------------------------------------------------------------------------4
2. REFERENCE INFORMATION ----------------------------------------------------------------------------------------------------
2-1 ----------------------------------------------------------------------------------------------- 5
-----------------------------------------------------------------------------------
5.PROBLEMS AND SOLUTIONS -------------------------------------------------------------------------------------------------
3. CIRCUIT DIAGRAMS --------------------------------------------------------------------------------------------------------
4. WIRING DIAGRAM: --------------------------------------------------------------------------------------------------------------
- 2 -
Component Descriptions
5
5 -19
20 - 31
32
33
AL M5677

1. PRECAUTIONS
1-1 Safety Precautions
1) Before returning an instrument to the customer,
always make a safety check of the entire instrument,
including, but not limited to, the following items:
(1) Be sure that no built-in protective devices are
defective or have been defeated during servicing.
(1) Protective shields are provided to protect both
the technician and the customer. Correctly replace
all missing protective shields, including any
remove for servicing convenience.
(2) When reinstalling the chassis and/or other
assembly in the cabinet, be sure to put back in
place all protective devices, including, but not
limited to, nonmetallic control knobs, insulating
fish papers, adjustment and compartment
covers/shields, and isolation resistor/capacitor
networks. Do not operate this instrument or permit
it to be operated without all protective devices
correctly installed and functioning.
(2) Be sure that there are no cabinet opening through
which adults or children might be able to insert
their fingers and contact a hazardous voltage.
Such openings include, but are not limited to,
excessively wide cabinet ventilation slots, and an
improperly fitted and/or incorrectly secured
cabinet back cover.
(3) Leakage Current Hot Check-With the instrument
completely reassembled, plug the AC line cord
directly into a 120V AC outlet. (Do not use an
isolation transformer during this test.) Use a
leakage current tester or a metering system that
complies with American National Standards
institute (ANSI) C101.1 Leakage.
Current for Appliances and underwriters
Laboratories (UL) 1270 (40.7). With the
instrument’s AC switch first in the ON position and
then in the OFF position, measure from a known
earth ground (metal water pipe, conduit, etc.) to all
exposed metal parts of the instrument (antennas,
handle brackets, metal cabinets, screwheads,
metallic overlays, control shafts, etc.), especially
and exposed metal parts that offer an electrical
return path to the chassis.
Any current measured must not exceed 0.5mA.
Reverse the instrument power cord plug in the
outlet and repeat the test.
AC Leakage Test
Any measurements not within the limits specified
herein indicate a potential shock hazard that must
be eliminated before returning the instrument to
the customer.
(4) Insulation Resistance Test Cold Check-(1) Unplug
the power supply cord and connect a jumper wore
between the two prongs of the plug. (2) Turn on
the power switch of the instrument. (3) Measure
the resistance with an ohmmeter between the
jumpered AC plug and all exposed metallic
cabinet parts on the instrument, such as
screwheads, antenna, control shafts, handle
brackets, etc. When an exposed metallic part has
a return path to the chassis, the reading should be
between 1 and 5.2 megohm. When there is no
return path to the chassis, the reading must be
infinite. If the reading is not within the limits
specified, there is the possibility of a shock hazard,
and the instrument must be re-pared and
rechecked before it is returned to the customer.
Insulation Resistance Test
- 3 -

2) Read and comply with all caution and safety related
notes non or inside the cabinet, or on the chassis.
3) Design Alteration Warning-Do not alter of add to the
mechanical or electrical design of this instrument.
Design alterations and additions, including but not
limited to, circuit modifications and the addition of
items such as auxiliary audio output connections,
might alter the safety characteristics of this
instrument and create a hazard to the user. Any
design alterations or additions will make you, the
service, responsible for personal injury or property
damage resulting there from.
4) Observe original lead dress. Take extra care to
assure correct lead dress in the following areas:
(1) near sharp edges, (2) near thermally hot parts
(be sure that leads and components do not touch
thermally hot parts), (3) the AC supply, (4) high
voltage, and (5) antenna wiring. Always inspect in
all areas for pinched, out-of-place, or frayed wiring.
Do not change spacing between a component and
the printed-circuit board, Check the AC power
cord for damage.
5) Components, parts, and/or wiring that appear to
have overheated or that are otherwise damaged
should be replaced with components, parts and/or
wiring that meet original specifications.
Additionally determine the cause of overheating
and/or damage and, if necessary, take corrective
action to remove and potential safety hazard.
6) Product Safety Notice-Some electrical and
mechanical parts have special safety-related
characteristics which are often not evident from
visual inspection, nor can the protection they give
necessarily be obtained by replacing them with
components rated for higher voltage, wattage, etc.
Parts that have special safety characteristics are
identified by shading, an ( ) or a ( ) on
schematics and parts lists. Use of a substitute
replacement that does not have the same safety
characteristics as the recommended replacement
part might created shock, fire and/or other
hazards. Product safety is under review
continuously and new instructions are issued
whenever appropriate.
1-2 Servicing Precautions
CAUTION: Before servicing Instruments covered by
this service manual and its supplements, read and
follow the Safety Precautions section of this manual.
Note: If unforeseen circument create conflict between
the following servicing precautions and any of the
safety precautions, always follow the safety
precautions. Remember; Safety First
1-2-1 General Serving Precautions
(1) a. Always unplug the instrument’s AC power cord
from the AC power source before (1) removing or
reinstalling any component, circuit board, module
or any other instrument assembly. (2)
disconnecting any instrument electrical plug or
other electrical connection. (3) connecting a test
substitute in parallel with an electrolytic capacitor
in the instrument.
b. Do not defeat any plug/socket B+ voltage
interlocks with which instruments covered by this
service manual might be equipped.
c. Do not apply AC power to this instrument and/or
any of its electrical assemblies unless all
solid-state device heat sinks are correctly
installed.
d. Always connect a test instrument’s ground lead
to the instrument chassis ground before
connecting the test instrument positive lead.
Always remove the test instrument ground lead
last.
Note: Refer to the Safety Precautions section
ground lead last.
(2) The service precautions are indicated or printed on
the cabinet, chassis or components. When
servicing, follow the printed or indicated service
precautions and service materials.
(3) The components used in the unit have a specified
flame resistance and dielectric strength.
When replacing components, use components
which have the same ratings, by ( ) or by ( )
in the circuit diagram are important for safety or
for the characteristics of the unit. Always replace
them with the exact replacement components.
(4) An insulation tube or tape is sometimes used and
some components are raised above the printed
wiring board for safety. The internal wiring is
sometimes clamped to prevent contact with
heating components. Install such elements as
they were.
(5) After servicing, always check that the removed
screws, components, and wiring have been
installed correctly and that the portion around the
serviced part has not been damaged and so on.
Further, check the insulation between the blades
of the attachment plus and accessible conductive
parts.
- 4-

SALES ENGINEER:ERIC ZHOU
C&A TECHNOLOGY LIMITED
E_MAIL:[email protected]

C&A TECHNOLOGY LIMITED
SALES ENGINEER:ERIC ZHOU
E_MAIL:[email protected]

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
-VEE
DECAP
0.19*1 11TS
0.19*1 3TS
0.19*1 9TS
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Saturday, January 17, 2015
general manager
Display&USB&MP3_LINE
Mode:
Rev
Date: Sheet of
广州番禺巨大汽车音响设备有限公司
Design:
Check:
Approve:
Block:
DP
DM
KEY_DET1
USB_GND
USB_5VVCC_5V
KEY_DET2
PH_DET
PH_LOUT
L_INPUT
CLK_VFD
STB_VFD
AM3V3
PH_ROUT
KEY_DET1
DATA_VFD
KEY_DET2
STBY_CTRL1
IR1
VCC_5V
DATA_VFD CLK_VFD STB_VFD
STBY_CTRL1
VCC_5V
VCC_5V
A-5V
MUTE
BT-DET
4094_STB
AM3V3
-VEE
Bluetooth_LED
-VEE
BT-DET
4094_STB
CLK_VFD
DATA_VFD
L_INPUT
R_INPUT
VFD-
IR1
BT_+10V
PH_LOUT
PH_DET
PH_ROUT
R_INPUT
L_INPUT
R_INPUT
R_INPUT
PH_LOUT
PH_ROUT
L_INPUT
PH_DET
PH_DET
PH_ROUT
PH_LOUT
BT_+10V
VCC_5V
A-5V
MUTE
G3 G8
SG14
SG6
SG10
SG1
G7
SG7
G2
SG15 SG11
SG2 SG8
G1 G6
G11
SG16 SG17
SG3 SG9
G5
G10
SG12
SG4
G4 G9
SG13
SG5
VOL+
SG13
SG10G9
G3
SG16
SG12
SG5
SG15 SG14
SG9
SG3
G11
G1
SG7
G10
G8
VDD
G7
SG6
SG17
VFD DATA
VFD STB
G6 G2
SG1
VDD
G4
SG11
VDD
G5
SG8
SG2
SG4
VFD CLK
VFD+
VDD
-VEE
VFD- VFD+
VOL-
Bluetooth_LED {2}
BT-DET {2}
4094_STB {2}
CLK_VFD {2}
DATA_VFD {2}
L_INPUT {2}
R_INPUT {2}
PH_DET {2}
PH_LOUT {2}
PH_ROUT {2}
BT_+10V {2}
VCC_5V {2}
A-5V {2}
MUTE {2}
VOL+
VOL-
+ EC9
100uF/10V
JK2
3.5mm_PJ-344-1
JK_PJ-344
1
2
3
4
5
6
7
8 9
VFD301
HL-D1686W
3 2 1 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
C39
470PF
SW4
STOP
1
2
3
4
Q7
8050
1
2 3
L1 100uH
Q1
8050
1
2 3
FB20 80RH
Q5
3904
1
2 3
R69 1.8K/1%
C41
0.033UF
R36 0R
CON2
4P2.0
1
2
3
4
R45 4.7K
FB9 80RH
SW6
Soure
1
2
3
4
SW3
1
2
3
4
R9 1R
R38
10K
R63 4.7K
C4
0.1uF
FB25 7RH
C75 0.1uF
D3
SS16
FB18 80RH
FB16 7RH
R63
100R
D5
SS16
TP4
Q3
3904
1
2 3
C8
100PF
FB19 1000RH
SW2
NEXT
1
2
3
4
C101
100pF
C67 0.1uF
R37 4.7K
FB12 1000RH
FB10 80RH
FB8 80RH
R4 1K
TP8
C7
0.1uF
R6 2.7K/1%
VOL301
16B-24204
1 3 2
4 5
R39
10K
D2
SS14
SW5
PLAY/PAUSE
1
2
3
4
TP6
FB17 7RH
FB13 1000RH
TP2
FB11 80RH
CON5
7pin,2.0mm
1
2
3
4
5
6
7
FB23 80RH
R72 56K
C73
0.1uF
FB22 80RH
C6
0.1uF
SW7
Power/standby
1
2
3
4
FB7 80RH
SW1
OPEN/CLOSE
1
2
3
4
R42 100R
Q2
8050
1
2 3
R3 2K
FB14 80RH
C56
10uF
R19
10K
R5
10K
FB21 1000RH
R62
100R
C74
0.1uF
C72
NC
FB4 80RH
FB2 80RH
R13 10R
R11 1K/1%
TP7
R82
100K
C2
0.1uF/X7R
TP1
+ EC3
100uF/10V
FB1
80RH
R62 4.7K
R74
10K
ZD2
3.6V
TP3
C3
473PF/X7R
+
EC8
220uF/10V
EC1
100uF/35V
TP11
C24
100PF
C100
100pF
C9
0.1uF
JK3
3.5mm_PJ-344-1
JK_PJ-344
1
2
3
4
5
6
7
8 9
TP10
C34
0.1uF
IR1
RF
1
2
3
4 5
R73
10K
TP5
EC2
100uF/10V
FB24 80RH
TP12
R68
47K
FB15 80RHR35 100R
R12 10K
R65 15R
C42
0.1uF
C43
0.033UF
IC1
PT6311
1 2 3 4 5 6 7 8 9 10 11 12 13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28 29 30 31 32 33 34 35 36 37 38 39
40
41
42
43
44
45
46
47
48
49
50
51
52
C11
0.1uF
FB3 80RH
C10
100PF
D4
SS14
C29
0.1uF
R43
47
FB5 80RH
R67
47K
TP13
ZD1
NC/36V
FB6 80RH
4:GND
3:D+
2:D-
1:VCC
1
3
2
4
JK1
USB
USB-4
2
3
4
1
56
R66 15R
Q6
8050
1
2 3
C340 0.1uF
R7 1.8K/1%
C12
100PF
C40
470PF
Q10
2302
1
2 3
D1
LED
1 2
T1
EPC-13
5
4
3
1
8
9
2
6
7
10
11
TP9
CON4
16pin,1.0mm
CON7D2.0-V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
TP14
R64 1K/1%
CON6
7pin,2.0mm
1
2
3
4
5
6
7