Mitsubishi CV-0MW7G21-2 User manual

Model: CV-0MW7G21-2
SE018807093E
SERVICE MANUAL
FEATURES .............................................................. 2,*
SPECIFICATIONS ....................................................... *
SYSTEM CONFIGURATION ...................................... 2
CONNECTORS ........................................................... *
BLOCK DIAGRAM ...................................................... *
DISASSEMBLING PROCEDURES ............................ *
EXPLODED VIEW and PARTS LIST ......................... 3
IC EXPLANATION ...................................................... *
CONTENTS
POWER AMPLIFIER
ELECTRICAL PARTS LIST ...................................... 2,*
PARTS LAYOUT ON PRINTED CIRCUIT BOARD
PCB-AMP .......................................................................... *
SCHEMATIC DIAGRAM
PCB-AMP ..................................................................... 4~8
VOLTAGE ................................................................ 9,*
WAVEFORM ............................................................... *
CV-0MW7G21-2
2007 SEP.
PART No : 8701A230
Your company internal use only
Copyright (c) Mitsubishi Electric Corporation
MITSUBISHI MOTORS
This manual provides only the change from the service manual of CV-0MW7G21 (2007
MAR.).
For * Marked contents, please refer to the service manual
of CV-0MW7G21 (2007 MAR.).
MELCO CODE : 34R025

2
SYSTEM CONFIGURATION
FL-LO+
FR-LO+
(+B)
+B
GND
(GND)
WOOFER1+
WOOFER2+
FL-LO-
FR-LO-
+B
+B
DATA
S-GND
GND
GND
WOOFER1-
WOOFER2-
FL-MH+
FR-MH+
FL-IN+
P-ON
RR+
RL+
FL-MH-
FR-MH-
FL-IN-
FR-IN-
FR-IN+
S-GND
RR-
RL-
CV-0MW7G21-2
SDL18P
SDL14P
BATT
WOOFER
RL +/- AMP-ON DATA-GND AMP-DATA FR +/- FL +/-
UNIQUE AUDIO
or
AND
FL-DOOR
FR-DOOR
FL-
TWEETER
FR-
TWEETER
REAR-R
REAR-L
The changed parts from the service manual of CV-0MW7G21 (2007 MAR.).
ELECTRICAL PARTS LIST
DescriptionRef. No. Part No.
CHIP PARTS (RESISTORS)
IC801 262P53764 IC M30620MCP-429GP
FEATURES
Changes from CV-0MW7G21
Premium sound quality for GS41/GS41evo car supported.

3
EXPLODED VIEW and PARTS LIST
M001
M006
M005
M002
M007
2
A
A
A
A
9
B
3
B
B
B
5
C
6
E
4
D
M009
A B
1
2
3
Part No. Description IndexRef. No. Part No. Description IndexRef. No.
*M001 560J32611 CHASSIS-R B-2
M002 560J33311 CHASSIS-F A-2
M005 635J08910 HEAT-SINK-MAIN B-1
M006 635K06610 HEAT-SINK-SUB B-2
M007 891J06810 ASSY-CHAS B-3
*M009 943M240O5
NAME-CARD(CV-0MW7G21-2) B-3
A 653P11046 SCREW-S-PAN 3X6 -
B 653P11048 SCREW-S-PAN 3X10 -
C 653P11052 SCREW-S-PAN 3X16 -
D 669M051O5 SCREW-TAP 3X6 -
E 669L077O2 SCREW-TAP 3X6 -
* ...This marked parts are changes from the service manual of
CV-0MW7G21 (2007 MAR.).

4
Permissible current
Permissible current
Permissible current
Permissible current
Power supply decrease detection voltage
Setting:
Lowest operation current
Vol.1
Vol.2
Vol.3
Vol.4
SCHEMATIC DIAGRAM PCB-AMP MODEL : CV-0MW7G21-2

5
Permissible current
Permissible current
Setting:
SCHEMATIC DIAGRAM PCB-AMP MODEL : CV-0MW7G21-2 Vol.1

6
Permissible current
Permissible current
Power supply decrease detection voltage
Setting:
Lowest operation current
SCHEMATIC DIAGRAM PCB-AMP MODEL : CV-0MW7G21-2 Vol.2

7
Permissible current
Permissible current
Setting:
SCHEMATIC DIAGRAM PCB-AMP MODEL : CV-0MW7G21-2 Vol.3

8
Permissible current
Power supply decrease detection voltage
Setting:
SCHEMATIC DIAGRAM PCB-AMP MODEL : CV-0MW7G21-2 Vol.4

VOLTAGE
MODEL : CV-0MW7G21-2
BATT : 13.2V ACC : ON VOL : 0 (Pin numbers are as measurement points.)
IC801(M30620MCP-429GP(MASK)) IC331(AK7730AVT)
Pin NO. Pin Name Function Voltage [V] Pin NO. Pin Name Function Voltage [V] Pin NO. Pin Name Voltage(DC)[V]
1 DSP0-RD
Y
RDY in
p
ut from DSP-IC
(
AK7730/AK7740
)
3.3 51 INIT0 Default in
p
u
t
0.0 1 EESEL 0.0
2 DSP1-RD
Y
RDY in
p
ut of DSP1
(
AK7730
)
3.3 52 INIT1 Default in
p
u
t
0.0 2 SDIN4 0.0
3 DSP1-SO Serial data out
p
ut to DSP1-IC
(
AK7730
)
0.0 53 INIT2 Default in
p
u
t
0.0 3 SDIN3 0.0
4 DSP1-SI Serial data in
p
ut to DSP1-IC
(
AK7730
)
0.0 54 INIT3 Default in
p
u
t
0.0 4 SDIN2 0.0
5 DSP1-SCL
K
Serial clock out
p
ut to DSP1-IC
(
AK7730
)
3.3 55 - Not Used 0.0 5 SDIN1 0.0
6 BYTE BYTE in
p
ut
(p
ull-u
p)
3.3 56 - Not Used 0.0 6 CKS1 3.3
7 CNVSS VSS 0.0 57 - Not Used 0.0 7 BVSS 0.0
8 DSP1-IRESET IRESET out
p
ut to DSP1-IC
(
AK7730
)
3.3 58 - Not Used 0.0 8 DVSS 0.0
9 DSP1-SRESET SRESET out
p
ut to DSP1-IC
(
AK7730
)
3.3 59 - Not Used 0.0 9 DVDD 3.3
10 RESET RESET in
p
u
t
3.3 60 VCC2 VCC 3.3 10 SDOUT4 0.0
11 XOUT Cr
y
stal connection OUT 1.7 61 - Not Used 0.0 11 SDOUT3 0.0
12 GND GND 0.0 62 VSS VSS 0.0 12 SDOUT2 1.2
13 XIN Cr
y
stal connection IN 1.4 63 - Not Used 0.0 13 SDOUT1 1.2
14 VCC1 VCC 3.3 64 - Not Used 0.0 14 BITCLK_I 0.0
15 NMI nonmaskable interru
p
t in
p
ut
(p
ull-u
p)
3.3 65 - Not Used 0.0 15 LRCLK_I 0.0
16
A
UDIO-SIO-IN Serial access si
g
nal from Audio
(
WakeU
p)
3.3 66 - Not Used 0.0 16 BITCLK_O 1.6
17 POWER-IN POWER-ON si
g
nal Audio
(
WakeU
p)
0.0 67 W/D-RCT external W/D control si
g
nal 0.6 17 LRCLK_O 1.6
18 BATT-IN BATT volta
g
e detection 0.0 68 W/D-CK external W/D clear
p
ulse out
p
ut 1.7 18 RD
Y
3.3
19
A
CC-ON Power su
pp
l
y
ACC ON out
p
u
t
3.3 69 - Not Used 0.0 19 DRD
Y
3.3
20 - Not Used 0.0 70 - Not Used 0.0 20 CS 0.0
21 POWER-MUTE0 POWER-IC-MUTE out
p
ut
(
TDA7575
)
0.0 71 - Not Used 0.0 21 DVDD 3.3
22 POWER-STB1 POWER-IC-STB Power su
pp
l
y
out
p
ut
(
TDA7560
)
3.3 72 - Not Used 0.0 22 DVSS 0.0
23 POWER-MUTE1 POWER-IC-MUTE out
p
ut
(
TDA7560
)
0.0 73 - Not Used 0.0 23 CLKO1 1.6
24
A
LL-MUTE MUTE out
p
ut 3.3 74 - Not Used 0.0 24 CLKO2 0.0
25 - Not Used 0.0 75 DSP1-DRD
Y
DRDY in
p
ut of DSP1
(
AK7730
)
0.0 25 XTO 1.3
26 - Not Used 0.0 76 DAC-PDN DAC-IC ON/OFF out
p
ut 3.3 26 XTI 1.3
27 I2C-SCL
(
POWER-IC/DAC
)
POWER-IC/DAC-IC communication
(
I2C
)
3.3 77 - Not Used 0.0 27 DVSS 0.0
28 I2C-SDA
(
POWER-IC/DAC
)
POWER-IC/DAC-IC communication
(
I2C
)
3.3 78 - Not Used 0.0 28 DVDD 3.3
29 TXD PC communication/for FLASH writtin
g
3.3 79 - Not Used 0.0 29 SMODE 3.3
30 RXD PC communication/for FLASH writtin
g
3.3 80 - Not Used 0.0 30 SO 0.0
31 SCLK for FLASH writin
g
3.3 81 - Not Used 3.3 31 SI 0.0
32
(
FLASH-RTS
)
for FLASH writin
g
0.0 82 - Not Used 0.0 32 SCLK 3.3
33
A
UDIO-SO Serial communication to Audio 3.3 83 - Not Used 0.0 33 RQ 3.3
34
A
UDIO-SI Serial si
g
nal to Audi
o
3.3 84 - Not Used 0.0 34 S-RESET 3.3
35 PC-CTS PC communication hand-shake 3.3 85 - Not Used 0.0 35 INT-RESET 3.3
36 PC-RTS PC communication hand-shake 3.3 86 - Not Used 0.0 36 CKS0 0.0
37 - Not Used 0.0 87 - Not Used 0.0 37 LFLT 1.5
38 - Not Used 0.0 88 - Not Used 0.0 38
A
VSS 0.0
39
(
FLASH-EPM
)
for FLASH writin
g
0.0 89 - Not Used 0.0 39
A
VDD 3.3
40 - Not Used 0.0 90 DSP0A-SRESET SRESET out
p
ut to DSP-IC
(
AK7730
)
3.3 40
A
VDD 3.3
41 - Not Used 0.0 91 DSP0A-IRESET IRESET out
p
ut to DSP-IC
(
AK7730
)
3.3 41 VREFH 3.3
42 OFFSET-IN0
(
HSD
)
OFFSET detection in
p
ut 0.0 92 DSP0A-DRD
Y
DRDY in
p
ut from DSP-IC
(
AK7730
)
3.3 42 VCOM 1.4
43 OFFSET-OUT OFFSET detective mode IN out
p
ut 0.0 93 DSP0A-RQ RQ out
p
ut to DSP-IC
(
AK7730
)
3.3 43 VREFL 0.0
44
(
FLASH-CE
)
for FLASH writin
g
0.0 94
A
VSS
A
VSS 0.0 44
A
VSS 0.0
45 CD-IN2
(
TAD7575
)
CD in
p
ut from TAD7575 3.3 95 DSP1-RQ RQ out
p
ut to DSP1-IC
(
AK7730
)
3.3 45
A
INR- 1.7
46 CD-IN1
(
TAD7575
)
CD in
p
ut from TAD7575 3.3 96 VREF
A
/D,D/A reference volta
g
e3.3 46
A
INR+ 1.7
47 CD-IN0
(
TAD7575
)
CD in
p
ut from TAD7575 3.3 97
A
VCC
A
VCC 3.3 47
A
INL- 1.7
48 - Not Used 0.0 98 DSP0-SI Serial data input of DSP-IC(AK7730) 0.0 48
A
INL+ 1.7
49 - Not Used 0.0 99 DSP0-SO Serial data out
p
ut of DSP-IC
(
AK7730
)
0.0
50 - Not Used 0.0 100 DSP0-SCLK Serial clock output of DSP-IC(AK7730) 3.3
9