Panasonic CQRX-400-N Service manual

ORDER NO. ACED080116C8

AUTOMOTIVE AFTERMARKET

CQ-RX400N

AAC WMA MP3 CD Player/Receiver

TABLE OF CONTENTS

PAGE P AGE

1 Service Navigation ----------------------------------------------- 2
2 Specifications ----------------------------------------------------- 3
3 Features ------------------------------------------------------------- 4
4 T ec hnic al Desc ri ptions----------------------------------------- 5
5 Block Diagram----------------------------------------------------10
6 Wiring Connection Diagram---------------------------------13
7 Schematic Diagram---------------------------------------------14
8 Schematic Diagram-2------------------------------------------17

9 Printed Circuit Board-------------------------------------------18
10 Exploded View and Replacement Parts List -----------22
11 Schematic Diagram for Printing with A4 Size----------31

© 2008 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribu­tion is a violation of law.

1 Service Navigation

1.1. About Lead Free Solder (PbF)

Distinction of PbF PCB :

• PCBs (manufactured) using lead free solder will have a Pb F
stamp on the PCB.

Caution :

• Pb free solder has a higher melting point than standard sol­der; Typically the melting point is 50 - 70°F (30 - 40°C)
higher. Please use a soldering iron with temperature control
and adjust it to 700 ± 20°F (370 ± 10°C). In case of using
high temperature soldering iron, please be careful not to
heat too long.

• Pb free solder will tend to splash when heated too high
(about 1100°F/600°C)

1.2. Laser Products

1.4. Maintenance

Your product is designed and manufactured to ensure a mini­mum of maintenance. Use a dry, a soft cloth for routine exterior

cleaning. Never use benzine, thinner or other solvents.

1.5. Notes

[RADIO BLOCK]

Do not align the AM/FM package block. When the package
block is necessary, it will be supplied alrea dy alig ned at the fac­tory.

[CD DECK BLOCK]

This model has no servo alignment points because microcom­puter controls the servo circuit.

1.3. Replacing the Fuse

Use fuses of the same s pe cif ied rati ng 15 a mps. Using different
substitutes or fuses with higher ratings, or connecting the unit
directly without a fu se, could cause fire or damage to th e st ere o
unit.

2

2 Specifications

2.1. Specifications*

General

Power Supply DC 12V (11V - 16V)

Current Consumption Less than 2.1A

Maximum Power Output 50W × 4 channels (at 1kHz),

Power Output 22 W x 4 channels (DIN 45 324, at 4 Ω)
Tone/SQ Adjustment Range SQ Low/Bass:±12dB

Speaker Impedance 4 - 8 Ω
Pre-amp Output Voltage 2.0 V

Pre-amp Output Impedance 200 Ω
USB Connector
USB Standard Compatibili ty 1.1/2.0 Full Speed
Maximum Supply Current 500 mA
Front AUX Input
Input Impedance
Allowable External Input
Connector

Test Voltage 14.4V
Negative Ground

(CD mode, 0.5W × 4 channels)

volume control maximum

(at 60 Hz, 80 Hz, 100 Hz, 200Hz)
SQ Mid: ±12 dB
(at 500 Hz, 1 kHz, 2 kHz, 3kHz)
SQ High/Treble: ±12 dB
(at 10kHz, 12kHz, 15 kHz, 18 kHz)

(CD mode, 1 kHz, 0 dB)

10 kΩ

2.0 V

3.5 mm Stereo mini-pin

2.2. Dimensions

Dimensions (W×H×D)** 178×50×160mm
Weight** 1.2 kg

Disc Player

Sampling Frequency 8 times oversampling
DA Converter 1 bit DAC System
Pick-Up Type Astigma 3-beam
Light Source Semiconductor Laser
Wave Length 790 nm
Frequency Response 20 Hz - 20 kHz (±1 dB)
Signal to Noise Ratio 96 dB
Total Harmonic Distortion 0.01 % (1 kHz)
Wow and Flutter Below Measurable Limits
Channel Separation 85 dB

FM Radio

Frequency Range 87.5 MHz - 108.0 MHz
Usable Sensitivity 6 dB/µV (S/N 30 dB)
Stereo Separation 35 dB (at 1 kHz)

AM (MW) Radio

Frequency Range 531 kHz - 1602 kHz
Usable Sensitivity 28 dB/µV (S/N 20 dB)

AM (LW) Radio

Frequency Range 153 kHz - 279 kHz
Usable Sensitivity 32 dB/µV (S/N 20 dB)

* Specifications and the design are subject to possible modification
without notice due to improvements.
** Dimensions and Weight shown are approximate.
** Above specifications comply with EIA standards.

3

3 Features

• SQ3 (3-Band Sound Quality).

• USB Connector

• The AUX Input terminal is equipped on the front panel.

• Expansion Module (The optional Hub unit: CY-EM100N)

• The optional adapter (Direct Cable for iPod, CA-DC300N)
allows you to connect the optional iPod® series.

• The optional adapter (Conversion Cable for DVD/CD
Changer:CA-CC30N) allows you to connect the optional
Panasonic CD changer unit (CX-DP880 N ).

• Hands Free Phone System. (The optional Bluetooth hands­free kit: CY-BT200N)

• AAC/MP3/WMA Playback from CD-R/RW

• Anti-Theft System.

4

4 Technical Descriptions

4.1. Terminals Description

4.1.1. Main Block

IC601 : YESAM462

Pin NoPort Description I/O Vol [V]

FM AM CD
1 DBGP0 Not used - 0 0 0
2 DBGP1 Not used - 0 0 0
3 DBGP2 Not used - 0 0 0
4 RDS CLK RDS (Radio Data System)

clock
5 RM DATA Remote control data I 4.6 4.6 4.6
6 CDC STB/

SYSID4
7 EVENT Hub event detection I 0 0 0
8 RESET System reset I 4.9 4.9 4.9
9 XT1 Crystal oscillator 1

10 XT2 Crystal oscillator 2

11 VSS G round - 0 0 0
12 CF1 Ceramic oscillator 1

13 CF2 Ceramic oscillator 2

14 VDD +5V power supply - 5.0 5.0 5.0
15 INI A Initialization mode A Pulled

16 VSM Signal meter intensity

17 INI B Initialization mode B (Pulled

18 USB FLG Thermal shutdown flag

19 USB RESET USB reset O 0 0 0
20 NC Not connected - - - ­21 SYSID1 Hub connection device ID 1 I 5.0 5.0 5.0
22 SYSID2 Hub connection device ID 2 I 5.0 5.0 5.0
23 USB MUTE USB mute O 0 0 0
24 CDC DATA Serial data from CD

25 CDC CLK/

SYSID3

26 CD DI (CD

SI)

27 CD DO (CD

SO)

28 CD CLK Serial clock for CD and

29 CD CE (FS) Chip enable for CD and

30 NC Not connected - - - ­31 NC Not connected - - - ­32 NC Not connected - - - ­33 SUB

READY0

34 REG

READY0

35 CD SW1 CD detection switch 1 I 4.9 4.9 4.9
36 CD SW2 CD detection switch 2 I 4.9 4.9 4.9
37 CD DMUTE CD mute I 0 0 5.1
38 CD LIMIT SWCD limit detection switch I 5.1 5.1 5.1

39 VSS Ground - 0 0 0
40 VDD +5V power supply - 4.9 4.9 4.9
41 CD MUTE Mute for Pick-up driver O 0 0 0

CD changer Strobe; or Hub
connection device ID 4

(32.768kHz)

(32.768kHz)

(13.50MHz)

(13.50MHz)

down

(Tuner)

down)

from USB regulator

changer
Hub connection device ID 3 I 0 0 0

Serial data to CD and USB O 0 0 3.0

Serial data from CD and
USB

USB

USB

Sub ready from CD servo I 5.1 5.1 4.9

Reg. ready from CD servo I 5.1 5.1 0

I2.52.52.5

I0 0 0

I1.01.01.0

O1.41.41.4

I1.41.41.4

O1.31.31.3

I4.94.94.9

I0 0 0

I0 0 0

I0 0 0

I0 0 0

I3.23.22.2

O0 03.0

O0 00.9

Pin NoPort Description I/O Vol [V]

FM AM CD

42 CD S/L CD Sleding/Loading mode

switch

43 CD F/R CD loading direction: For-

44 CD RESET CD reset O 4.9 4.9 4.9
45 HUB ACC

CNT

46 HUB CNT Hub connection check

47 USB ENBL USB enable O 0 0 0
48 USB SLP USB sleep O 0 0 0
49 LCD DI Serial data to LCD O 4.9 4.9 4.9
50 LCD DO Serial data from LCD I 4.3 4.3 4.3
51 LCD CLK Serial clock for LCD O 4.9 4.9 4.9
52 LCD CE Chip enable for LCD CPU O 0 0 0
53 E-VOL I2C

DATA

54 E-VOL I2C

CLK
55 VDD +5V power supply - 4. 9 4.9 4.9
56 VSS Ground - 0 0 0
57 E-VOL

MUTE
58 POWER

CNT
59 STBY Standby mode for Power

60 NC Not connected - - - ­61 NC Not connected - - - ­62 SUB CLK

OUT
63 NC Not connected - - - ­64 BEEP Beep tone O 0 0 0
65 USB IN USB-in detection I 0 0 0
66 ACC ACC level detection I 5.2 5.2 5.2
67 NC Not connected - - - ­68 MODE B Rotary encoder detection B

69 MODE A Rotary encoder detection A

70 EXT MUTE Not connected - - - ­71 PANEL IN Front panel detection I 4.9 4.9 4.9
72 BATT Battery level detection I 4.6 4.6 4.6
73 RDS DATA RDS (Radio Data System)

74 CDC REM

OUT
75 HUB-TX Transmission data to Hub O 0 0 0
76 HUB-RX Reception data from Hub I 0 0 0
77 USB RXD Serial data to USB O 0 0 0
78 USB TXD Serial data from USB I 0 0 0
79 FM MODE Power supply control for

80 AM MODE Power supply control for

81 MONO Monaural control O 0 0 0
82 ST FM stereo indication I 5.1 5.1 5.1
83 DI/DO Not conne cted - - - ­84 CS Not connected - - - ­85 SK Not connected - - - ­86 NC Not connected - - - ­87 VREG Connected to capacitor - 3.0 3.0 3.0
88 VSS Ground - 0 0 0
89 VDD (PLL) +5V power supply - 5. 0 5.0 5.0
90 OSC FM/AM FM/AM local oscillation fre-

91 NC Ground - 0 0 0

ward/Reverse

Power supply control for
Hub (External device)

request

Serial data for Audio signal
processor (volume)
Serial clock for Audio signal
processor

Not connected - - - -

System power supply con­trol

amplifier

Not connected - 0 0 0

for volume

for volume

data
Remote control for CD
changer

FM mode

AM mode

quency

O4.94.94.9

O000

O000

O4.94.94.9

O4.94.94.9

O4.94.94.9

O4.94.94.9

O4.94.94.9

I5.05.05.0

I5.05.05.0

I2.5 0 0

O000

O4.9 0 0

O04.90

I1.41.41.4

5

Pin NoPort Description I/O Vol [V]

FM AM CD
92 FM/AM IFC FM/AM center frequency I 0 0 0
93 NC Ground - 0 0 0
94 EO FM /A M phase detection

error
95 SUBPD Not connected - - - ­96 SSC SD sensitivity control O 0 0 0
97 ANT CNT Not connected - - - ­98 AMP CNT Power supply control for

External amplifier
99 AF MUTE Audio signal mute O 0 0 0

100 AMP MUTE Mute for Power amplifier O 4.9 4.9 4.9

O2.22.22.2

O4.94.94.9

6

4.2. IC Block Diagram

4.2.1. Main Block

IC201 : YESAM440

IC271 : YESAM438

IC501 : YESAM425

IC671 : YESAM391

7

IC751 : YESAM424

IC801 : YESAM429

8

IC771 : YESAM426

IC791 : YESAM344

IC852 : YESAM439

PA051 : YESAP403

4.2.2. Display Block

IC851 : YESAM437

IC901 : YESAM427

IC902 : YESAM264

9

5 Block Diagram

5.1. Main-1 Block

AT51

XL501

4.332MHz

IC501

13

RDS

DEM

14

FM / AM TUNER

AM ANT

1
2 FM ANT

FM VT

PA51

AM VT

16

2

4

HUB L

24

AUX L

FM DET

16

L-CH

R-CH R-CH

212011146

17

22 23

CD L

FRONT

LR

REAR

LR

7231-02-11(1/3)

CN250

CN701

BATT

IC201

AUDIO SIGNAL PROCESSOR

MUTE

R-CH

Q365

MUTE

5

3

INPUT

7

SEL

VOLUME

TONE

FADER

1

FL

16

RL

15

Q366

R-CH

SW

Q261

POWER AMP

12

14

IC271

5
3

21
23

FL+
FL-

RL+
RL-

ACC

AMP CNT

R-CH

FR+
FR-

21

43

65

87

10 9

1211

SDA

SCLK

1819

STBY

MUTE

R-CH

224

RR+

RR-

1413

Q401

FM / AM OSC

EO

VSM

SD / ST IND

FM / AM IFC

16929094

FM ST/MONO

82

81

Q54

DATA

RDS

473

SCLK

TU+B

Q52,602

POW

POW

Q55,601

SW

SW

80

AM MODE

FM VCC

AM VCC

79

FM MODE

5453

SDA

E-VOL

I2C

SCLK

IC601(1/3) SYSTEM CONTROL

XL602

32.8KHz

9

XT110XT2

XL601

13.5KHz

12

CF113CF2

Q251

99

AF MUTE

59

STBY

100

AMP MUTE

REM IN

1615

BAT DET

CQ-RX400N MAIN (1/3)

10

5.2. Main-2/D is pl ay Block

7231-05-11 7231-02-11(2/3)

LD901

KEY-IN

MATRIX

IC901

LCD DRIVE

SEG
1–34

3–36

COM
1–4

KS
3–6

KI
2–5

50–53 45–48 39–42

Q902

LED

DRIVE

CN902

AUX

IC601(2/3)

SYSTEM CONTROL

CN971CN901

DI

DO

CL

CE

64
61
63
62

10
11
13
12

10
11
13
12

49

LCD DI

50

LCD DO

51

LCD CLK

52

LCD CE

HUB TX

HUB RX

CDC DATA

CDC REMO

CDC CLK
CDC STB
HUB CNT

VDD

54

Q901

5

5

VDD5V2

EVENT

P1

1

PWR

SW

6

6

71

PANEL

IC701

5V

P2

2

SOURCE

D901

BATT

BATT

CHECK

15
3

72

8

BATT
RESET

64BEEP
75
76
24
74
25

6

46

7

21
22

HUB L

BATT

6
3

8
12
11

2

1

IC671

INV

IC791

15V

LIMIT

R-CH

5
4
9

13
10

1

3

L-CH
R-CH

DATA
REMO

SCLK
STRB
HCNT
EVENT

SYS ID1
SYS ID2

ACC

CN671

3

456

78910

11 12

2131

BAT DET

2

RECEIVE

L-CH

IC902

IR

SW901

REMO

9

1

9

5

RM DATA

REM IN

MODE A

8

8

MODE B

7

7

69

MODE A

68

MODE B

USB

2

2

AUX L

ENBL17FLG

HUB ACC

CNT

ACC

AMP CNT

PWR CNT

45

66
98
58

BATT

ACC

IC751

POWER SUPPLY
9

VCC

3

ACC

2

COMP
MODE 2

11

MODE 1

6

1
4

10

13

BATT

SW5V
VDD5V2 VDD5V1

Q752

POW

SW

AMP CNT

Q770

AUD9V TU+B

DELAY
START

47

Q751

R-CH

DSP

12

POW

SW

DSP3.3V

USB

3
2
1

D+
D–
VBUS

CN903

ILL10V

17
18
20

1515

17
18
20

D+
D–

IC781 IC771

1

3

POW

54

SW

11

15

ILM

4

5V

21

REG

BATT

CD

7

CD+B

CQ-RX400N MAIN(2/3)/DISPLAY

5.3. Main-3/CD Interface Block

CN2 CN1

A

B

E

F

PD

LD

I-V

AMP

11

10

7

9

3

2

LPD

4

1

LD3.3V

VREF

VCC

7231-02-11(3/3)3032-14-53Optical Pic-up Ass'y

IC801

CN801

A

1

1

B

3

3

E

4

4

F

21

22

2

2

8

8

Q871

21

6

6

22

LD

DRIVE

DSP3.3V

PICK-UP DRIVE

5
6
7
8

14

13

19

18

VREF

11

IC851

A
C
B
D
F

E

LDS

LDO

-

-

RF AMP,SERVO,DSP

+

FE

ADC

TE

SERVO

CTL

FDO

TDO

SLDO

SPDO

EFM

DEM

LIMIT SW

X IN

733224252322

XL801

16.93MHz

X OUT

72

DAC

48

34

49

33

L-CH

R-CH

ST-IN

ST-CLK

ST-REQ

CONT0

DO

DI

CL

CE
50

47

37

44

27

R-CH

26 28

CD L

28
27
26
31
33
46

10

11
15

IC601(3/3)

SYSTEM

CONTROL

29

76
78

56
55
54

52 18
46
45
44
43

LRCK
STCLK
SDAT
ST DATA
ST CK
ST REQ

MCLKD
CD DATA

9

CD CMD
CD CLK
CE CD DSP

IC101

USB CONTROL

UHD+

38
37

UHD-

XL101

6

CF1

7

CF2

SOMI

13
12

SIMO

SPI SPI

UCLK

14
22

NSS

D+
D–

CP CONTROL

SOMI

20
19

SIMO
UCLK

21
18

NSS

IC151

FOCUS

COIL

TRACKING

COIL

SPINDLE

MOTOR

SLED

MOTOR

F+

16
15

14
13

M

SP+

M

CD SW1
CD SW2

CD LIMIT SW

F-

T+

SP-

SL+

SL-

14

14

16

16

18
20

10
12

17
15

19

18
20

10
12

7

7

5

5

17
15

19

T-

2
1

26
27

11
12

17
18

FOCUS

COIL

DRIVE

TRACKING

COIL

DRIVE

SPINDLE

MOTOR

DRIVE

SLED

MOTOR

DRIVE

MUTE

24

20

4

SUB READY

REG READY

7

9

IC852

6

15

7

41 CD DMUTE

CD S/L

42 62

35 CD SW1
43 CD F/R
36 CD SW2
38 CD LIMIT SW

CD MUTE

CD RESET

CD DI

CD DO

CD CLK

USB TXD

USB RXD

USB RESET

USB MUTE

USB IN

USB SLP

SUB CLK

CD CE

78
77
19
23
65
48

45

TXD

44

RXD

2

RESET
USB MUTE REQ

16

USB IN

48

SLEEP

47

CP RESET
CP READY

21

NRESET

38

1

11

CP READY

XIN

2

CQ-RX400N MAIN(3/3)

12