Mitsubishi DY-3A66U-AL Service Manual

Model : DY-3A66U-AL

SERVICE MANUAL

AM/FM-ST ELECTRONIC TUNING RADIO

with CD CHANGER

MITSUBISHI

PART No. MN141332

DY-3A66U-AL

SE002405023E

FEATURES AND SPECIFICATIONS................. 2

OPERATION ...................................................... 3

CONNECTORS ............................................... 4,5

DISASSEMBLING PROCEDURES................. 6,7

BLOCK DIAGRAM.............................................. 8

EXPLODED VIEW, AND PARTS LIST .............. 9

IC EXPLANATION....................................... 10,11

ELECTRICAL PARTS LIST......................... 12,13

PRINTED CIRCUIT BOARD

PCB-MAIN ............................................... 14,15

PCB-SUB .................................................... 16

SCHEMATIC DIAGRAM

PCB-MAIN,SUB.......................................17~21

VOLTAGE ............................................... 22,23

WAVEFORM .................................................... 24

CONTENTS

2005 MAR.

2

FEATURES AND SPECIFICATIONS

SPECIFICATIONS

AM Radio

Frequency Range : 531 ~ 1,710kHz
Sensitivity : Less than 28dB
Signal/Noise Ratio : More than 45dB
(60dBµV)

FM Stereo Radio

Frequency Range : 87.5 ~ 108.0MHz
Limiting Sensitivity : Less than 10dB
Signal/Noise Ratio : More than 55dB
(40dBµV)

CD Player

Laser : Semiconductor Laser
DA Convertor : 1bit
Dynamic Range : More than 65dB
Signal/Noise Ratio : More than 65dB
Channel Separation : More than 50dB (1kHz)

Others

Power Supply : DC 13.2V (11~16V)

Test Voltage 13.2V

Negative ground
Battery Back Up Current : Less than1.0mA
Current Consumption : ACC 2.1A ± 20% (Output 1W)

Maximum Power Output : 45W x 4 (SP output)
Output Impedance : 4 (SP Output)
Dimensions : 178mm x 151.3mm x 100mm

( W

x

D x H )

Weight : 2.0kg

FEATURES

Radio

AM can preset the 6 station and FM (FM1/FM2) can preset
the 12 station.

It is able to memory by keep pushing the preset memory
button.

TUNE control by Rotary SW.
ATC function to control BASS/TREBLE sound quality
according to electric field strength when AM is received.
AM noise killer function.
SCAN function : Seeking receivable stations and receiving
5 seconds in each station.

CD Player

In-dash CD auto changer (6disc) function.
Power Loading / Power Eject function.
Equipped with the shock proof memory.

(16M-DRAM)(CD-DA:10.4sec)
Skip recovered function.

(Recovered the condition before skip.)
Protected function of laser pickup stopping at high tem­perature.
Quick truck selection function.
Any time Eject function. (Eject at the all mode included
ACC OFF.)
Scan function : 10 sec
Reload function.
Available for loading 12cm disc only.
MP3 play function.

(MPEG1 AUDIO LAYER3, MPEG2 AUDIO LAYER3)
Repeat function. (One tune)
Random play function.
Fast-forwarding and fast-reversing function.

MP3

Folder Up/Down function by TUNE knob.

Audio Part

High power, 4 channel output. (4 load)
Adjustment of BASS,TREBLE,BALANCE,and FADER by
Rotary SW.
ITM (Independent Tone Memory) function to memorize
amount of BASS/TREBLE adjustment according to mode.
Fixed EQ matched to car room sound filed characteristic.
Auto loudness function varies a frequency characteristic by
volume.
The function that controls the amount of change in the low
/ high frequency tone (BASS / TREBLE) adjustment with
the maximum volume.

Others

M-BUS is used the method of communication with CD
changer.
The beep sounds, to check an operation, by using a button
with hold-pushing operation function.
Rheostat function. (The intensity of buttons, panel and LCD

can adjust to link with the intensity of vehicle's instrument
panel lighting).
The connection of speaker wiring can check by test mode of
the beep in the vehicle's assembly line.

Steering Remote control.
Hands free function.

VES (Video Entertainment System) function.

3

OPERATION

RADIO & AUDIO PART

CD Load / Eject
Button

Power Switch

Volume Adjustment Knob

Change Radio

(FM AM)

Auto Tune
UP/DOWN Button

Audio Adjustment
Switch Knob

(Manual Tune
UP/DOWN Button)

CD CHANGER PART

Preset Memory Button

(AM-6 / FM-12)

CD Button

Track Select
UP / DOWN Button

Disc Select Button

Repeat / Random
Button

Radio SCAN
UP Button

READY INDICATOR

FF / REW Button

<< UNIQUE PANEL : SW-744, SW-745 >>

CDDA
Push the button 1.5 seconds
or more.

MP3

Folder select
UP/DOWN Knob

CD SCAN UP
Button

Audio Adjustment
Switch Knob

Power Switch

Volume Adjustment Knob

4

17 LAMP
18 LAMP
19 SENCE CAR
20 VDD
21 TUNE2
22 TUNE1

9 AD2
10 AD1
11 GND
12 ENABLE(LED)
13 DATA(LED)
14 LAMP GND
15 LAMP GND
16

1 LATCH(LED)
2 CLOCK(LED)
3
4 AUDIO-SW
5 VOL2
6 VOL1
7 EJECT-SW
8 POWER-SW

Pin
No.

Name

Pin
No.

Name

Pin
No.

Name

22P Connector

CONNECTORS

1234567891011

12131415 16171819202122

22P Connector

< FRONT SIDE VIEW >

5

Pin
No.

1 Signal GND
2 Lch
3
4 Rch
5
6
7 ACC (+)

Name

Pin
No.

8

9 Battery (+)
10 Illumination Level
11 M-BUSY
12 M-SCK
13 M-DATA

H Shield Earth

Name

CD Changer 13P DIN SocketPower supply 14P Connector

8 Speaker FL (-)

9 Illumination (-)
10 Battery (+)
11 Accessory (+)
12
13 Speaker RL (-)
14 Speaker RR (-)

1 Speaker FR (+)
2 Speaker FL (+)
3 Illumination (+)
4 Antenna + B
5 Speaker RL (+)
6 Speaker RR (+)
7 Speaker FR (-)

Pin

No.

Name

Pin
No.

Name

Remote control 10P Connector

6 REMO-OUT
7 Telephone Mute
8 Telephone GND
9 M-BUSY

10 Shield Earth(M-BUS)

1 REMO-IN
2
3 Telephone Signal
4 M-SCK
5 M-DATA

Pin

No.

Name

Pin
No.

Name

Antenna Socket

12345

6

7

141312 1110 9 8

14P Connector

CD Changer

13P DIN Socket

1

23

4

5

6

7

13

12 1110 9

8

H

12345

6

710 9 8

10P Connector

< REAR SIDE VIEW >

6

2. Removal of CDX2 (See Fig.2)

1) Unscrew the six screws ( 2 ) .

2) Remove the HEAT-SINK.

3) Unscrew the four screws ( 3 ) .

4) Remove the BRACKET-CDX
and FLAT-CABLE.

5) Remove the CDX2.

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

COVER

2

6

3

2

3

2

CDX2

HEAT-SINK

FLAT-CABLE

BRACKET-CDX

7

4. Removal of PCB-MAIN and PCB-SUB (See Fig.4)

1) Unscrew the two screws ( 5 ), and three screws ( 6 ) .

2) Remove the FLAT-CABLE.

3) Remove the CHASSIS-L and the CHASSIS-R and PCB-SUB.

4) Unscrew the one screw ( 7 ) and two screws ( 8 ) and
three screws ( 9 ).

5) Remove the PCB-MAIN.

Fig.4

3. Removal of LEAD-CONNECTOR (See Fig.3)

1) Unscrew the four screws ( 4 ) .

2) Remove the CHASSIS-F and HOLDER-CON.

5) Remove the LEAD-CONNECTOR.

Fig.3

4

2

4

2

HOLDER-CON

LEAD-CONNECTOR

CHASSIS-F

8

2

9

3

6

2

7

5

CHASSIS-R

PCB-MAIN

5

6

FLAT-CABLE

CHASSIS-L

PCB-SUB

8

BLOCK DIAGRAM

AM/FM
TUNER

RADIO 10V

POWER SUPPLY

AUDIO 8.5V

POWER SUPPLY

AM NK

HA12181

PRE AMP
NJM4565V

POWER-IC

TDA7560

LOW PASS

FILTER

NJM2100

M-BUS

BUFFER

PRE AMP

NJM4565V

PANEL 5V

POWER

SUPPLY

LAMP+
POWER
SUPPLY

DIGITAL 3.3V

POWER

SUPPLY

DSP

AK7740

ANALOG 3.3V

POWER
SUPPLY

MECHA DSP 3.3V

POWER SUPPLY

DIGITAL 6.2V

POWER SUPPLY

BUS BUFFER

SN74LV541A

BATTERY 5V

POWER SUPPLY

MECHA SERVO 8V

POWER SUPPLY

RHEOSTAT

9

EXPLODED VIEW, AND PARTS LIST

ABC

1

2

3

4

A

4

A

4

D

2

A

2

A

2

B

2

B

6

C

3

E

A

A

A

B

M001

M002

M003

M004

M005

M006

M007

M008

M009

M010

M011

M012

M013

M014

M015

M016

M017

1

1

2

2

4

4

3

3

M001 246L341O5 FLAT-CABLE 18P B-2
M002 246L43311 LEAD-CONNECTOR-22P B-3
M003 560J30110 CHASSIS-B C-3
M004 560J30310 CHASSIS-L A-2
M005 560J30311 CHASSIS-R C-2
M006 560J30210 CHASSIS-F A-3
M007 591K38610 COVER A-1
M008 591K50410 HOLDER-CON A-3
M009 591K49410 BRACKET-CDX C-1
M010 246L346O7 FLAT-CABLE 18P B-1
M011 635J08310 HEAT-SINK C-2
M012 592L966O2 HOLDER-IC B-2
M013 643L015O3 SHEET A-3
M014 943M179O5 NAME-CARD A-1
M015 851L262O4 LABEL-CAUT B-1
M016 941L73813 CDX2(533) B-1
M017 643L13911 SHEET-M-BASE B-1

A 653P11046 SCREW-S-PAN 3X6 ­ B 653P11048 SCREW-S-PAN 3X10 ­ C 653P11049 SCREW-S-PAN 3X12 ­ D 669L057O1 SCREW-TAP 3X6 ­ E 669L077O2 SCREW-TAP 3X6 -

Ref.No. Part No. Description Index

10

IC201,960,961 LF33ABPT

1

INHIBIT

CONTROL

V

IN

3

V

OUT

2

GND

REFERENCE

VOLTAGE

TERM.

PROTECTION

DRIVER

CURRENT

LIMIT

DUMP

PROTECTION

START

INHIBIT

ERROR

AMPLIFIER

IC EXPLANATION

1

14

2

5

11

IF AGC

DETECTION
OUTPUT AF AGC

15 12

13

16

4

7

3

68

10

9

IF
INPUT

A

F

INPUT

PHASE
CONDENSER

HOLDING
CONDENSER

BY-PASS
CAPACITOR

AF
OUTPUT

IF AGC

IF
AMP

.

LPF

DETECTION

PULSE
DETECTION

CONSTANT
CURRENT
SOURCE
CIRCUIT

HPF 1

LPF

AF
AMP.

AF
AGC

OR

PULSE
DETEC­TION

(1)

HPF

NOISE
AGC

GATEPULSE
GENERATO

R

CONSTANT­VOLTAGE
CIRCUIT

SW1

SW2

PHASE
CIRCUIT

LEVEL
DIFFERENTIAL
DETECTION
CIRCUIT

SW3

CONSTANT
CURRENT
CIRCUIT

(WAVEFORM
COMPENSA

TION)

SW4

SW5

BYPASS
AMPLIFIER

(WAVEFORM

COMPENSA

TION)

BUFFER
AMPLIFIER

PULSE
DETEC­TION

(2)

GATEPULSE (1)
GATEPULSE

(2)

(1)

(2)

1

19

2

3

4

5

6

7

8

9 11

12

13

14

15

16

17

18

OE1
OE2

A1

A2

A3

A4

A5

A6

A7

A8 Y8

Y7

Y6

Y5

Y4

Y3

Y2

Y1

IC302 SN74LV541APWIC802 PST9136

5

4

3

VCC

OUT

GND

CO1

OP1



+


+

IC1 HA12181FP-EL

11

IC380 RC2100M/NJM2100M

IC330 TDA7560

1

2

3

4

8

7

6

5

OUTPUT A

 INPUT A

+ INPUT A

 VCC

+ VCC

OUTPUT B

 INPUT B

+ INPUT B

IC321,390,421 NJM4565V-TE1

OUT1

-- IN1

+IN1

V--

V+

OUT2

-- IN2

+IN2

3

2

1

4

6

7

8

5

AB

1

4

Vcc1

ST-BY

25

HSD/V

OFF

DET

9

OUT1+

7

OUT1­P-GND1

5

OUT2+

3

OUT2­P-GND2

17

OUT3+

19

OUT3­P-GND3

21

OUT4+

23
24

18

2

8

13

1

10

16

OUT4­P-GND4

AC-GND SVR TAB S-GND

22

MUTE

11

IN1

12

IN2

15

IN3

14

IN4

1

Vcc2

HSD

IC301 AK7740

LRCLK

LRCLK

RQ

*SW1,SW2,SW3,ISEL[2:0],
OUTAE control register

SDOUTA

OUTAE

SW3

SW0

SDATA

SDATA

SDATA

SW2

SW2

SW1

DSP

CONTROLLER

ADC

VREF

DAC1

DAC2

72kbit DLRAM

SDINA

SDIN

RQ

SI SI

SO SO

SDINA

SDIN

ISEL[2:0]

SDOUTD1

SDOUTD2

SDOUT

SCLK SCLK

RDY RDY

DRDY DRDY

JX JX

BITCLK

BITCLK

CLKOUT

CLKOUT

XTI

XTI

XTO

XTO

SMODE

SMODE

INIT_RESET

INIT_RESET

R_RESET

R_RESET

AINL-

AINL-

AINL+

AINL+

AINL1
AINL2
AINL3
AINL4

AINR-

AINR-

AINR+

AINR+

AOUTL

AOUTR

AOUTL

AOUTR

AINR1
AINR2
AINR3
AINR4
VREFH
VCOM

AOUTL1

AOUTL2

AOUTR1

AOUTR2

SDOUT

Pin No.

1
2
3
4
5
6
7
8
9

10

Pin Name

AINL3
AINR2
AINL2
AINR1
AINL1

VREFH

AVDD

AVSS
DVSS
DVDD

Pin No.

11
12
13
14
15
16
17
18
19
20

Pin Name

XTI

XTO

CLKO

JX

SMODE

LRCLK
BITCLK

SDIN

SDINA

SDOUTA

Pin No.

21
22
23
24
25
26
27
28
29
30

Pin Name

SDOUT

DRDY
DVSS
DVDD

RDY

SO

SI

SCLK

RQ

S_RESET

Pin No.

31
32
33
34
35
36
37
38
39
40

Pin Name

INIT_RESET

DVDD
DVSS

BVSS
AOUTR2
AOUTL2
AOUTR1
AOUTL1

AVDD

VCOM

Pin No.

41
42
43
44
45
46
47
48

Pin Name

AVSS
AINR-

AINR+

AINL­AINL+
AINR4
AINL4
AINR3

12

103L199O9 R-CHIP 0
103L299O9 R-CHIP 0
103L249O9 R-CHIP 0
103L290O5 R-CHIP 22
103L290O9 R-CHIP 47
103L291O1 R-CHIP 68
103L291O3 R-CHIP 100
103L291O9 R-CHIP 330
103L241O9 R-CHIP 330
103L292O1 R-CHIP 470
103L292O2 R-CHIP 560
103L292O5 R-CHIP 1k
103P502O5 R-CHIP 1k
103L292O6 R-CHIP 1.2k
103L292O7 R-CHIP 1.5k
103L292O8 R-CHIP 1.8k
103L292O9 R-CHIP 2.2k
103L192O9 R-CHIP 2.2k
103L293O0 R-CHIP 2.7k
103L193O0 R-CHIP 2.7k
103L293O1 R-CHIP 3.3k
103L193O1 R-CHIP 3.3k
103L193O2 R-CHIP 3.9k
103L293O2 R-CHIP 3.9k
103L293O3 R-CHIP 4.7k
103P503O3 R-CHIP 4.7k
103L293O4 R-CHIP 5.6k
103L293O5 R-CHIP 6.8k
103L293O6 R-CHIP 8.2k
103L293O7 R-CHIP 10k
103L293O8 R-CHIP 12k
103P503O8 R-CHIP 12k
103P503O9 R-CHIP 15k
103L293O9 R-CHIP 15k
103L294O0 R-CHIP 18k
103L294O1 R-CHIP 22k
103L294O3 R-CHIP 33k
103L294O5 R-CHIP 47k
103L294O7 R-CHIP 68k
103L294O9 R-CHIP 100k
103P504O9 R-CHIP 100k
103L295O1 R-CHIP 150k
103L295O2 R-CHIP 180k

Q927 260L020O9 TR 2SB1240Q
Q980 260P11410 TR 2SB1561Q
Q201,205,etc. 260P68210 TR 2SD2375OP
Q762,772,etc. 260M061O6 TR-CHIP 2SA1037AR
Q31 260P11710 TR-CHIP 2SA1364
Q1,2,etc. 260M061O5 TR-CHIP 2SC2412S
Q940 260P102O1 TR-CHIP 2SD2318
Q941 260P12510 TR-CHIP 2SD2537

103L295O3 R-CHIP 220k

103L295O6 R-CHIP 390k
R8N1,8N2,8N8 109P01218 R-NETWORK-CHIP 1k
R3N1 109P01219 R-NETWORK-CHIP 4.7k
R8N4,8N7 109P01213 R-NETWORK-CHIP 10k
R8N5 109P01216 R-NETWORK-CHIP 47k
R8N6 109P01225 R-NETWORK-CHIP 100k

141L180O6 C-CERAMIC-CHIP 5pF
141L181O3 C-CERAMIC-CHIP 12pF
141L181O9 C-CERAMIC-CHIP 22pF
141L182O7 C-CERAMIC-CHIP 47pF
141L183O5 C-CERAMIC-CHIP 100pF

141L160O5 C-CERAMIC-CHIP 470pF
141L160O9 C-CERAMIC-CHIP 1000pF
141L185O9 C-CERAMIC-CHIP 1000pF
141L161O1 C-CERAMIC-CHIP 1500pF
141L161O3 C-CERAMIC-CHIP 2200pF
141L161O5 C-CERAMIC-CHIP 3300pF
141L161O7 C-CERAMIC-CHIP 4700pF
141L162O1 C-CERAMIC-CHIP 0.01µF
141L162O3 C-CERAMIC-CHIP 0.015µF
141L164O3 C-CERAMIC-CHIP 0.033µF
141L164O5 C-CERAMIC-CHIP 0.068µF
141L164O6 C-CERAMIC-CHIP 0.1µF
141L063O2 C-CERAMIC-CHIP 0.1µF
141L164O8 C-CERAMIC-CHIP 0.22µF
141L069O5 C-CERAMIC-CHIP 1µF

C951 181P73110 C-ELE-CHIP 100uF/10V
C326,954 181P73111 C-ELE-CHIP 220µF/10V
C302,304,etc. 181P73123 C-ELE-CHIP 10µF/16V
C322,323,etc. 181P73149 C-ELE-CHIP 4.7µF/35V
C370,390,etc. 181P73162 C-ELE-CHIP 2.2µF/50V

Part No. L
141L06xOx 2.0mm
141L16xOx 1.6mm
141L18xOx 1.6mm

Part No. L
103L19xOx 2.0mm
103L24xOx 3.2mm
103L29xOx 1.6mm

103P50xOx 1.6mm

ELECTRICAL PARTS LIST

< Chip Parts (Resistors & Capacitors) >

SOLDERING PART

L

CHIP PARTS (CAPACITORS)

CHIP PARTS (RESISTORS)

Ref. No. Part No. Description Ref. No. Part No. Description

TRANSISTOR

13

X301 285P11422 CRYSTAL
X801 285P093O1 CRYSTAL
H-TR-1,4 593L34010 HOLDER TR
H-TR-2,3,5 593L29210 HOLDER-TR
LC301,302 409P047O1 LC-MULTIPLE-CHIP
LC321,370,etc. 409P023O1 LC-MULTIPLE-CHIP
F925 299P128O3 PROTECTOR
Z2,701 299P136O2 PROTECTOR
PLATE1,3,4 443P01012 TERMINAL
FE1 295P21613 TUNER

IC301 263P22010 IC AK7740
IC1 266L067O1 IC HA12181FP-EL
IC201,960,961 266P61410 IC LF33ABPT
IC321,390,421 266L065O9 IC NJM4565V-TE1
IC802 266L064O5 IC PST9136
IC380 266L034O9 IC RC2100M/NJM2100M
IC302 263P99010 IC SN74LV541APW

L801~811,etc. 351P091O8 COIL-CHIP
L901 351P11310 COIL-CHOKE
L902 351P048O1 COIL-CHOKE
L1 351P082O6 COIL-CHOKE-CHIP
L201 351P081O6 COIL-CHOKE-CHIP
L3 351P083O6 COIL-CHOKE-CHIP
L301,302,etc. 351P095O4 COIL-CHOKE-CHIP
L940 351P082O0 COIL-CHOKE-CHIP

IC330 266P62810 IC TDA7560
IC801 262P51710 IC µ PD70F3035BYGC-8EU

D901,903 264L042O1 DIODE ERA15-02
D201,940 264P607O1 DIODE-CHIP 1SR154-400
D203,204,etc. 264L060O1 DIODE-CHIP 1SS355
D944 264P617O1 DIODE-CHIP MC2836-T50-1
D943 264P618O1 DIODE-CHIP MC2838-T50-1
D902 264P516O1 DIODE-CHIP S3D6600
D205 264L067O3 DIODE-Z-CHIP MA8051M
D941,990 264L067O2 DIODE-Z-CHIP MA8056H
D202,802 264P584O1 DIODE-Z-CHIP MA8068M
D807~813 264P584O5 DIODE-Z-CHIP MA8075H
D801,942 264P584O7 DIODE-Z-CHIP MA8082M
D980 264P584O9 DIODE-Z-CHIP MA8091L
D910,911 264P585O6 DIODE-Z-CHIP MA8110M
D375,475.etc. 264P588O6 DIODE-Z-CHIP MA8270M

Q750,760,770 260L010O1 TR-CHIP 2SD601AS
Q752 260L042O4 TR-CHIP DTA114T
Q333,942 260M061O1 TR-CHIP DTA124E
Q202,207,991 260L030O5 TR-CHIP DTA143E
Q967 260L030O3 TR-CHIP DTA144E
Q332 260L042O2 TR-CHIP DTA144T
Q944 260L057O1 TR-CHIP DTB123Y
Q928 260M061O9 TR-CHIP DTC114E
Q801,943 260L042O7 TR-CHIP DTC114T
Q301~303 260L014O8 TR-CHIP DTC123E
Q3,103,etc. 260M061O2 TR-CHIP DTC124E
Q32,203,etc. 260L014O2 TR-CHIP DTC143E
Q802 260L030O2 TR-CHIP DTC144E
Q321,421,etc. 260L033O1 TR-CHIP DTC323T

DIODE

IC

Ref. No. Part No. DescriptionRef. No. Part No. Description

CONNECTORS

OTHERS

RESISTOR

COIL

RF901 103L390O2 R-FUSE

P804 452L083O8 CONNECTOR 8P
P903 452P23210 CONNECTOR 10P
P803 452L094O2 CONNECTOR 12P
P901 452L34211 CONNECTOR 14P
P201,210 452P136O8 CONNECTOR 18P
P211 452L274O8 CONNECTOR 18P
P801 452L218O8 CONNECTOR
ANT1 449L076O3 SOCKET-ANT
P902 449L098O3 SOCKET-DIN