Mitsubishi DY-6MW7U53-2 User manual

Model : DY-6MW7U53-2
SERVICE MANUAL
AM / FM-ST (MW / LW / FM-ST) ELECTRONIC TUNING RADIO,
6 DISC CD CHANGER
DY-6MW7U53-2
SE018107093E
FEATURES and SPECIFICATIONS .................. 2
OPERATION .................................................. 3~5
RADIO DATA SYSTEM ...................................... 6
REAR VIEW and CONNECTORS ..................... 7
BLOCK DIAGRAM .............................................. 8
SYSTEM CONFIGURATION .............................. 8
DISASSEMBLING PROCEDURES .............. 9~11
EXPLODED VIEW and PARTS LIST ............... 12
For the mecha part, please refer to the service manual of CDX3(955050).
IC EXPLANATION ...................................... 13~16
ELECTRICAL PARTS LIST ......................... 17,18
PARTS LAYOUT ON PRINTED CIRCUIT BOARD
PCB-MAIN ............................................... 19,20
SCHEMATIC DIAGRAM
PCB-MAIN .............................................. 21~25
VOLTAGE ............................................... 26,27
WAVEFORM ............................................... 28,29
2007 SEP.
MITSUBISHI MOTORS
Your company internal use only
Copyright (c) Mitsubishi Electric Corporation
MITSUBISHI ELECTRIC CORP. SANDA WORKS
CONTENTS
PART No. : 8701A237
MELCO CODE : 34U241

2
FEATURES and SPECIFICATIONS
SPECIFICATIONS
AM (MW) Radio
Frequency Range
EU : 522 ~ 1611kHz (9kHz step)
AUS : 531 ~ 1710kHz (9kHz step)
CHI NA : 531 ~ 1620kHz (9kHz step)
GCC : 531 ~ 1602kHz (1kHz step)
ROW : 531 ~ 1710kHz (1kHz step)
Sensitivity : Less than 32dB
Signal/Noise Ratio : More than 6dB
(15dBµV)
FM Stereo Radio
Frequency Range
EU / AUS / CHI NA : 87.5 ~ 108.0MHz (0.1MHz step)
GCC / ROW : 87.5 ~ 108.0MHz (0.025MHz step)
Separation Characteristic : More than 14dB (43dBµV)
Signal/Noise Ratio : More than 17dB
LW Stereo Radio (EU only)
Frequency Range : 153 ~ 279kHz (1kHz step)
Sensitivity : Less than 32dB
Signal/Noise Ratio : More than 6dB
(15dBµV)
CD Changer
Dynamic Range : More than 65dB
Signal/Noise Ratio : More than 65dB
Channel Separation : More than 55dB (1kHz)
Others
Power Supply : DC 13.2V (10.0~16.0V)
Negative ground
Battery Back Up Current : 1mA
Current Consumption : BATT 2.4A ± 20% (Output 1W)
Maximum Power Output : 35W x 4ch
Output Impedance : 4 (SP Output)
Dimensions : 178mm x 151.3mm x 100mm
( W
x D x H )
Weight : 2.1kg
FEATURES
Radio
Manual preset function / Store 6 AM(MW) stations.
Manual preset function / Store some FM stations. (EU : 18
stations / AUS, CHINA, GCC and ROW : 6 stations)
Manual preset function / Store 6 LW stations. (EU only)
Auto Preset function / Store 6 AM stations and 6 FM sta-
tions. (AUS, CHINA, GCC and ROW only)
Auto Store function / Store 6 AM stations and 6 FM sta-
tions. (EU only)
Tune control function. (Rotary Switch)
ATC function. (Control BASS and TREBLE, Only AM
mode)
AM noise killer function. (AM-NK)
RDS function. (EU only)
CD Changer
Built-in CD auto changer. (6 disc)
Power load / Power eject function.
Protecting laser pickup. (As high temperature)
Fast track up and Fast track down function.
Any Time Load function. (All mode and ACC OFF)
Any Time Eject function. (All mode and ACC OFF)
Reload function.
Supporting only 12cm disc. (Not supporting 8cm disc)
MP3 play function.
(MPEG1 AUDIO LAYER3, MPEG2 AUDIO LAYER3)
Shock proof memory.
Continuous loading the disc. (Long pushing LOAD button)
Continuous ejecting the disc. (Long pushing EJECT button)
Title display function.
Fast-forwarding and fast-reversing function.
[CD-DA]
Repeat function. (1 track / 1 disc)
Random function. (1 disc / All disc)
[MP3]
Folder Up / Down function. (TUNE knob)
Repeat function. (1 file / 1 folder)
Random function. (1 folder / All folder)
Audio Part
High power, 4 ch output. (4 load)
Adjustment of BASS, MID, TREBLE (± 6 step) and BAL-
ANCE, FADER (± 11 step). (TUNE knob)
Fixed-EQ (6 band x 4 ch) / Adjusting the sound filed char-
acteristic.
Auto loudness function / Changing the frequency charac-
teristic.
Limiting the value (BASS, TREBLE) as volume MAX.
Connecting the AMP and the RSES.
Customizing sound characteristic / Music type, Sound
Field, BASS, MID, TREBLE, FADER, BALANCE.
Others
Sounding the beep as the long pushing button.
Interrupting the telephone voice.
Checking the speaker connection.
Operated the steering remote control.
Telephone mute function.
Changes from DY-6MW7U53
PTY is supporting Italian.

3
OPERATION
Radio Mode
CD Changer Mode
Preset Button ch1~6
Traffic Program Button
Program Type/
Scan Button
Volume Up Button
Power Button
FM/AM Changing Button Auto Tune Up/Down Button
Tune Up/Down
Button
CD Disc Eject Button
Repeat Button
Random Button
Fast Reverse Button
Fast Forward Button
Disc Up/Down Button
(only when using 6CD-
changer)
Disc Load Button
Volume Down Button
Track or File
Up/Down Button
CD Insertion Slot
Page Button
Display Button
CD Button
Folder Up/Down
Button
Sound/Menu
Changing Button
< SW-6ME7BLN, SW-6ME7BLP > (for EU)

4
< SW-6MA7BRN, SW-6MA7BRP > (for AUS)
Radio Mode
CD Changer Mode
Preset Button ch1~6
Scan Button
Auto Program Button
Volume Up Button
Power Button
FM/AM Changing Button Auto Tune Up/Down Button
Tune Up/Down
Button
CD Disc Eject Button
Repeat Button
Random Button
Fast Reverse Button
Fast Forward Button
Disc Up/Down Button
(only when using 6CD-
changer)
Disc Load Button
Volume Down Button
CD Insertion Slot
Display Button
CD Button
Folder Up/Down
Button
Sound/Menu
Changing Button
Page Button Track or File
Up/Down Button

5
< SW-6MX7BLN, SW-6MX7BLP > (for CHINA, GCC and ROW)
Radio Mode
CD Changer Mode
Preset Button ch1~6
Scan Button
Auto Program Button
Volume Up Button
Power Button
FM/AM Changing Button Auto Tune Up/Down Button
Tune Up/Down
Button
CD Disc Eject Button
Repeat Button
Random Button
Fast Reverse Button
Fast Forward Button
Disc Up/Down Button
(only when using 6CD-
changer)
Disc Load Button
Volume Down Button
Track or File
Up/Down Button
CD Insertion Slot
Page Button
Display Button
CD Button
Folder Up/Down
Button
Sound/Menu
Changing Button

6
RADIO DATA SYSTEM (EU only)
It automatically identifies RDS station by detecting RDS signal
transmitted from UKW stations.
1) PS (Program Service) Name
At the statement of RDS data receiving PS Name (station
name) should be displayed (priority over freq.).
2) TP (Traffic Program) and TA (Traffic Announcement)
a) Push TP button to activate TP function with " TP " indica-
tor in display.
When TA is received, display shows " TRAF INF " then
the station name of TA transmitter.
The unit can receive TA when broadcasted from not only
current station (If it is TP station) but the other network
stations supported by EON.
When TA is over, the original program (even CD) is re-
called and will be superseded again when the next TA is
broadcasted.
When you want to skip TA during receiving, just push TP
button to switch off TP mode.
b) If current station is not a RDS one, display shows " NO
RDS " then station frequency.
3) PTY (Program Type) Search
Your favorite program among 29 classifications can be se-
lected, then its qualified station is automatically searched.
a) Push PTY button to display PTY indicator and last PTY,
then searches stations with same PTY.
b) You can select your favorite PTY among the 29 catego-
ries classified in below using Tuning button or preset
button (CH1 to CH6) while PTY indicator appears in dis-
play.
c) When a desired PTY station can not be received the last
tuned station is restored with " EMPTY " displayed for 5
seconds.
4) PTY (Program Type) Language Selection
You can select your favorite language among English,
Swedish, French, German and Italian.
5) AF (Alternative Frequency)
With this function, the unit can keep the best receivable sta-
tion automatically among the same network as the current
station, when it becomes too weak and hard to listen.
(Initial setting at purchase is AF check ON.)
<AF check ON/OFF operation>
a) After switch off the power, then hold down CH5 button
and press the Power ON/OFF switch while 2 seconds.
At statement of AF check ON, display shows " AF ".
6) EMERGENCY ALARM
With this function, when the " Emergency Program " should
broadcasted the radio should receive it automatically at the
statement of ACC ON. At this time display shows " ALARM ".
7) CT (Clock Time)
Some RDS station broadcast time signal.
When CT function is ON, CT indicator appear in display,
and such a station is being received, this function automati-
cally adjusts clock to correct local time.
a) How to CT function ON/OFF
After switch off the power , then hold down CH4 button
and press the Power ON/OFF switch while 2 seconds.
At statement of CT check ON, display shows " CT ".
1 News (NEWS)
2 Current Affairs (AFFAIRS)
3 Information (INFO)
4 Sport (SPORT)
5 Education (EDUCATE)
6 Drama (DRAMA)
7 Culture (CULTURE)
8 Science (SCIENCE)
9 Varied (VARIED)
10 Pop Music (POP M)
11 Rock Music (ROCK M)
12 Easy Music (EASY M)
13 Light Classics (LIGHT M)
14 Classical (CLASSIC)
15 Other Music (OTHER M)
16 Weather Information (WEATHER)
17 Finance (FINANCE)
18 Children (CHILDREN)
19 Social (SOCIAL)
20 Religion (RELIGION)
21 Phone in (PHONE IN)
22 Travel (TRAVEL)
23 Leisure (LEISURE)
24 Jazz (JAZZ)
25 Country (COUNTRY)
26 Nation Music (NATION M)
27 Oldies (OLDIES)
28 Folk Music (FOLK M)
29 Documentary (DOCUMENT)
Classification Table of PTY
CH No. PTY
CH 1 News (NEWS)
CH 2 Sport (SPORT)
CH 3 Weather Information (WEATHER)
CH 4 Pop Music (POP M)
CH 5 Rock Music (ROCK M)
CH 6 Classical (CLASSIC)
Initial Setting PTY in each CH button

7
REAR VIEW and CONNECTORS
Main Antenna Socket
Power Supply, Speaker
20P Connector (P901)
6543
1920 11
987 21
1215161718 14 13
10
Panel / Amp
and AUX Input
18P Connector (P801)
6543
1011
987 21
1215161718 14 13
1 RADIO DISP DATA
2 RADIO SWITCH DATA
3 AMP DATA
4 OPTION Rch
5 OPTION GND
6 RSES/AUX Rch
7 HANDS FREE
8 HANDS FREE GND
9-
NAME
Pin
No.
10 SWITCH PANEL GND
11 AMP POWER ON
12 AMP DATA GND
13 OPTION Lch
14 RSES/AUX GND
15 RSES/AUX Lch
16 -
17 TEL MUTE
18 -
NAME
Pin
No.
Panel / Amp and AUX Input 18P Connector (P801)
1 BATTERY (+)
2-
3 SPEAKER FL (+)
4 SPEAKER RL (+)
5 SPEAKER FR (+)
6 SPEAKER RR (+)
7 SHIELD GND
8-
9 REMOCON
10 ACCESSORY (+)
NAME
Pin
No.
11 POWER GND
12 -
13 SPEAKER FL (-)
14 SPEAKER RL (-)
15 SPEAKER FR (-)
16 SPEAKER RR (-)
17 ANTENNA +B
18 -
19 REMOCON GND
20 SPEED PULSE
NAME
Pin
No.
Power Supply, Speaker 20P Connector (P901)

8
BLOCK DIAGRAM
RDS
Single-END
Cereal
18pin
CD L,R
AM
FM
20pin
Antenna(Main)
Diversity
Circuit World Band Tuner
(179E-2AF)
HANDS-FREE
RSES/AUX
SAT CDX3(955050)
Panel/Display
C-DSP
(SAA7709/N103)
2Ch
FFC
3.3V
8.0V
I/F
Sub-
Woofer
AMP data/clk
display / switch
5.0V
Level conversion
Bus Buffer
(SN74LVTH244APWR)
BATT+
Audio -COM
(M30624MGP-399GP)
3.3V
(DSP Analog)
3.3V
(DSP Digital)
MUTE
(SN74AHCT244PWR)
5.0V(for Tuner)
8.5V(for Tuner)
5.0V
EEPROM
WDT
MUTE
RR
RL
FR
FL
3.3V
(DSP Analog)
(CD4066)
DAC
(AK4352)
I2C
RB531XN
UART
I/F
Woofer
Woofer
I2S
I2S
Sub-DSP
(AK7730AVT)
4Ch
CD
SPDIF
2nd
LPF
Steering
Remote
Control
Amp
TEL-MUTE
<IC800>
<IC8C1>
<D201>
<FE101>
<IC307>
<IC204>
<IC202>
<J700>
<P801>
<P901>
<IC8C1>
<IC200>
<IC8N1>
<IC8A1>
<SCT1>
5 Line
Analog LR
Power
Supply
Bus Buffer
3.3V
(DSP Digital)
3.3V
(DSP Analog)
Bus Buffer
(SN74AHCT
244PWR)
Power Supply +BATT
Antenna Power
ANT+B
POWER-IC
(TDA7563)
SYSTEM CONFIGURATION
REMOTE CONTROL
(STEERING)
TO SPEAKER HARNESS
SWITCH
VEHICLE/
SEPARATE AMPLIFIER
+B
ACC
MAIN
ANTENNA
AUDIO UNIT
DY-6MW7U53-2
VEHICLE SPEED PULSE
ANTENNA
SW-6ME7BLN,etc.
DISPLAY
8750A042 (Visteon)
RSES
ED-310RG-PJ2,etc.
OR
AUX UNIT
SEPARATE
AMPLIFIER
CV-0MW7B51
HANDS FREE KIT

9
2. Removal of CDX3 (See Fig.2)
1) Unscrew the two screws ( 2 ).
2) Remove the CDX3 and FLAT-CABLE 18P.
3) Unscrew the two screws ( 3 ).
4) Remove the BRACKET-CDX3.
5) Unscrew the two screws ( 4 ).
6) Remove the BRACKET-CASE.
Fig.2
DISASSEMBLING PROCEDURES
1. Removal of COVER (See Fig.1)
1) Unscrew the four screws ( 1 ).
2) Remove the COVER.
Fig.1
1
4(A)
COVER
32(A)
22(A)
CDX3
BRACKET-CDX3
FLAT-CABLE 18P
BRACKET-CASE
42(A)

10
4. Removal of CHASSIS (See Fig.4)
1) Unscrew the three screws ( 6 ).
2) Remove the CHASSIS-F.
3) Unscrew the two screws ( 7 ).
4) Remove the CHASSIS-L.
5) Unscrew the two screws ( 8 ) and three screws ( 9 ).
6) Remove the CHASSIS-R.
Fig.4
3. Removal of HEAT-SINK (See Fig.3)
1) Unscrew the four screws ( 5 ).
2) Remove the HEAT-SINK.
Fig.3
54(C)
HEAT-SINK
8
8
CHASSIS-L
CHASSIS-F
CHASSIS-R
7
2(A)
6
3(A)
(A)
(A)
9
2(B)
9
(B)