Sony CDXC-5000-RX Service manual

CDX-C4900R/C5000R/C5000RX

SERVICE MANUAL

Ver 1.2 2001. 05

Photo: CDX-C5000R

• The tuner and CD sections have no adjustments.

SPECIFICATIONS

AEP Model

UK Model

Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-383Z-121//Q
Optical Pick-up Name KSS-720A

CD player section

Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit

Tuner section

FM

Tuning range 87.5 – 108.0 MHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),

72 dB (mono)

Harmonic distortion at 1 kHz

0.6% (stereo),

0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz

MW/LW

Tuning range MW: 531 – 1,602 kHz

LW: 153 – 279 kHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity MW: 30 µV

LW : 40 µV

Power amplifier section

Outputs Speaker outputs

(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 50 W × 4 (at 4 ohms)

General

Outputs Audio outputs

Tone controls Bass ±9 dB at 100 Hz

Power requirements 12 V DC car battery
Dimensions Approx. 178 × 50 × 183 mm
Mounting dimension Approx. 182 × 53 × 162 mm

Mass Approx. 1.2 kg
Supplied accessories Parts for installation and

*1

Equipped with front and rear outputs:
CDX-C5000RX/C5000R only
Equipped with rear outputs: CDX-C4900R

*2

CDX-C5000RX/C5000R only

Design and specifications are subject to change without
notice.

Power aerial relay control
lead
Power amplifier control
lead
Telephone ATT control
lead

Treble ±9 dB at 10 kHz

(negative ground)

(w/h/d)

(w/h/d)

connections (1 set)
Front panel case (1)

*1

*2

9-870-070-12

2001E0400-1
© 2001. 5

FM/MW/LW COMPACT DISC PLAYER

Sony Corporation

e Vehicle Company

Shinagawa Tec Service Manual Production Group

1

Ver 1.1 2000. 08

SERVICE NOTES

This product is classified as a CLASS 1 LASER PRODUCT.
This label is located on the bottom of the
chassis.

This label is located on the drive unit's internal
chassis.

When replacing the chassis (T) of mechanism deck which have
the “CAUTION LABEL” attached, please be sure to put a new
CAUTION LABEL (3-223-913-11) to the chassis (T).

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick­up block. Therefore, when checking the laser diode emission, ob­serve from more than 30 cm away from the objective lens.

Notes on Chip Component Replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

TABLE OF CONTENTS

1. GENERAL

Location of controls................................................................. 3

Getting Started......................................................................... 3

Setting the clock ...................................................................... 3

CD Player CD/MD unit ........................................................... 4

Radio ....................................................................................... 5

RDS ......................................................................................... 6

Other Functions ....................................................................... 7

Connections ............................................................................. 8

2. DISASSEMBLY

2-1. Sub Panel Assy.................................................................. 12

2-2. CD Mechanism Block ....................................................... 12

2-3. Main Board ....................................................................... 13

2-4. Heat Sink ........................................................................... 13

2-5. Chassis (T) Assy................................................................14

2-6. Lever Assy......................................................................... 14

2-7. Servo Board....................................................................... 15

2-8. ARM Roller Assy .............................................................. 15

2-9. Chassis (OP) Assy............................................................. 16

2-10. Optical Pick-up Block ....................................................... 16

3. DIAGRAMS

3-1. IC Pin Descriptions ........................................................... 17

3-2. Block Diagram –CD Section–........................................... 23

3-3. Block Diagram –Tuner Section–....................................... 24

3-4. Block Diagram –Display Section–.................................... 25

3-5. Circuit Boards Location .................................................... 25

3-6. Printed Wiring Boards –CD Mechanism Section–............26

3-7. Schematic Diagram –CD Mechanism Section (1/2)– ....... 28

3-8. Schematic Diagram –CD Mechanism Section (2/2)– ....... 29

3-9. Printed Wiring Board –Main Section–.............................. 30

3-10. Schematic Diagram –Main Section (1/3)– ........................ 32

3-11. Schematic Diagram –Main Section (2/3)– ........................ 33

3-12. Schematic Diagram –Main Section (3/3)– ........................ 34

3-13. Schematic Diagram –Sub (CD) Section–.......................... 35

3-14. Printed Wiring Board –Sub (CD) Section–....................... 36

3-15. Printed Wiring Board –Key Section–................................ 37

3-16. Schematic Diagram –Key Section–................................... 38

4. EXPLODED VIEWS

4-1. Chassis Section ................................................................. 42

4-2. Front Panel Section ...........................................................43

4-3. CD Mechanism Section (1) ............................................... 44

4-4. CD Mechanism Section (2) ............................................... 45

4-5. CD Mechanism Section (3) ............................................... 46

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

2

5. ELECTRICAL PARTS LIST ........................................ 47

SECTION 1

GENERAL

This section is extracted
from instruction manual.

3

456789101112

6

SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. SUB PANEL ASSY

4 two claws

6 sub panel assy

2 PTT 2.6x8

2-2. CD MECHANISM BLOCK

5 CD mechanism block

2 PTT 2.6x6

3 claw

5 CN500

1 PTT 2.6x8

7 bracket (CD)

6 PTT 2.6x6

3

4 CN301

1 PTT 2.6x

8

8

2-3. MAIN BOARD

6 MAIN board

5 ground point screws

(PTT 2.6x6)

4 ground point screw
(PTT 2.6x6)

3 PTT 2.6x

2 PTT 2.6x8

1 PTT 2.6x8

2-4. HEAT SINK

6 heat sink

5 PTT 2.6x

4 PTT 2.6x8

3 PTT 2.6x12

1 PTT 2.6x8

2 PTT 2.6x8

13

2-5. CHASSIS (T) ASSY

2 P 2x3

3 P 2x3

2-6. LEVER ASSY

1 Unsolder the
lead wires.

4 chassis (T) assy

black

red

white

4 claws

5 guide (disc)

6 lever (R) assy

3 tension spring (LR)

7 lever (L) assy

1 PS 2x4

2 DISC IN SW board

14

Fig. 1

3 PS 2x3

4 LOAD SW board

1 tension spring (RA)

2 arm roller assy

washer

arm

arm

washer

washer washer

2-7. SERVO BOARD

7 PS 2x4

8 PS 2x4

3 Removal the solders.

1 CN3

5 P 2x3

6 loading motor assy

(M903)

2 CN2

9 SERVO board

4 Removal the solders.

2-8. ARM ROLLER ASSY

• When installing, take note of the positions

arm (roller) and washers. (Fig. 1)

15

2-9. CHASSIS (OP) ASSY

8 compression spring (FL)

1 tension spring (KF1)

7 chassis (OP) assy

9 compression spring (FL)

2 tension spring (KR1)

5 Fit lever (D) in the

direction of the arrow.

6 Turn loading ring in the
direction of the arrow.

4 damper (T)

2-10. OPTICAL PICK-UP BLOCK

1 P 2x3

2 sled motor assy

(M902)

3 damper (T)

3 optical pick-up block

16

SECTION 3

DIAGRAMS

3-1. IC PIN DESCRIPTIONS

• IC501 CXD2598Q (DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD)

Pin No. Pin Name I/O Pin Description

1 DVDD — Digital power supply pin
2 DVSS — Digital ground
3 SOUT O Servo brock serial data output (Not used.)
4 SOCK O Servo brock serial data read clock output (Not used.)
5 XOLT O Servo brock serial data latch output (Not used.)
6 SQSO O Sub Q 80 bit, PCM peak and level data output. CD TEXT data output
7 SQCK I Clock input from SQSO read output.
8 SCSY I Fixed at “L”.

9 SBSO O Serial output of sub-P to W. (Not used.)
10 EXCK I Clock input from SBSO read output. (Fixed at “L”)
11 XRST I System reset (“L”: Reset)
12 STSM I System mute input (Fixed at “L”)
13 DATA I Serial data input from CPU.
14 XLAT I Latch input from CPU. Latch serial data at the falling edge.
15 CLOK I Serial data transfer clock input from CPU.
16 SENS O SENS output for CPU.
17 SCLK I Clock input from SENS serial data read.
18 ATSK I/O Input/output for anti-shock.
19 WFCK O WFCK (Write Flame Clock) output (Not used.)
20 XUGF O XUGF output (Not used.)
21 XPCK O XPCK output (Not used.)
22 GFS O GFS output
23 C2PO O C2PO output (Not used.)
24 SCOR O “H” output at either detection, sub code sync S0 or S1.
25 C4M O 4.2336 MHz output (Not used.)
26 WDCK O Word clock input f=2Fs (Not used.)
27 COUT I/O Track number count signal input/output (Not used.)
28 MIRR I/O Mirror signal input/output (Not used.)
29 DVSS — Digital ground
30 DVDD — Digital power supply pin
31 DFCT I/O Diffect signal input/output (Not used.)
32 FOK I/O Focus OK signal output
33 PWM1 I External control input of spindle motor.
34 LOCK I/O Lock signal input/output
35 MDP O Servo control output of spindle motor.
36 SSTP I Disc most inner track detection signal input
37 FSTIO I/O 2/3 frequency division output of pins ih and ij. (Not used.)
38 SFDR O Sled drive output
39 SRDR O Sled drive output
40 TFDR O Tracking drive output
41 TRDR O Tracking drive output
42 FFDR O Focus drive output
43 FRDR O Focus drive output
44 DVDD — Digital power supply pin
45 DVSS — Digital ground
46 TEST I Test pin (Fixed at “L”)
47 TES1 I Test pin (Fixed at “L”)
48 XTSL I X’tal select input (“L”: 16.9344 MHz, “H”: 33.8688 MHz)
49 VC I Center voltage input
50 FE I Focus error signal input
51 SE I Sled error signal input

17

Pin No. Pin Name I/O Pin Description

52 TE I Tracking error signal input
53 CE I Center servo analog input
54 RFDC I RF signal input
55 ADIO O Test pin (Not used.)
56 AVSSO — Analog ground
57 IGEN I Constant current input from OP amplifier.
58 AVDDO — Analog ground
59 ASYO O EFM full-swing output (“L”: VSS, “H”: VDD)
60 ASYI I Asymmetry comparate voltage input
61 RFAC I EFM signal input
62 AVSS3 — Analog ground
63 CLTV I VCO control voltage input from master.
64 FILO O Filter output for master PLL (slave=digital PLL)
65 FILI I Filter input from master PLL.
66 PCO O Charge pump output for master PLL.
67 AVDD3 — Analog power supply pin
68 BIAS I Asymmetry circuit constant current input
69 VCTL I VCO2 control input from wideband EFM PLL. (Not used.)
70 V16M O VCO2 oscillator output for wideband EFM PLL. (Not used.)
71 VPCO O Charge pump output for wideband EFM PLL. (Not used.)
72 DVSS — Digital ground
73 MD2 I Digital out ON/OFF control input (“L”: OFF, “H”: ON)
74 DOUT O Digital out output
75 ASYE I Asymmetry circuit ON/OFF input (“L”: OFF, “H”: ON)
76 DVDD — Digital power supply pin
77 LRCK O D/A interface LR clock output (f=Fs)
78 LRCKI I D/A interface LR clock input
79 PCMD O D/A interface serial data output (2’s COMP, MSB fast)
80 PCMD I D/A interface serial data input (2’s COMP, MSB fast)
81 BCK O D/A interface bit clock output
82 BCKI I D/A interface bit clock input
83 EMPH O Emphasis ON/OFF signal output
84 EMPHI I Emphasis ON/OFF signal input (“H”: ON, “L”: OFF)
85 XVDD — Power supply for master clock.
86 XTAI I X’tal oscillator input from master clock (16.9344 MHz).
87 XTAO O X’tal oscillator output for master clock (16.9344 MHz).
88 XVSS — Ground pin for master clock.
89 AVDD1 — Analog power supply pin
90 AOUT1 O Lch analog output
91 AIN1 I Lch OPAMP input
92 LOUT1 O Lch LINE output
93 AVSS1 — Analog ground
94 AVSS2 — Analog ground
95 LOUT2 O Rch LINE output
96 AIN2 I Rch OPAMP input
97 AOUT2 O Rch analog output
98 AVDD2 — Analog power supply pin
99 RMUT O Rch “0” detect Flug (Not used.)

100 LMUT O Lch “0” detect Flug (Not used.)

18

• IC5 CXP84640-063Q (CD SYSTEM CONTROL) (SERVO BOARD)

Pin No. Pin Name I/O Pin Description

1 ITRPT — Not used in this set.

2, 3 ——Not used in this set.
4, 5 NCO — Not used in this set.

6 OPEN I Front panel open detection input

7 CLOSE O Front panel close control output

8 LINKOFF I Bus interface link input

9 NCO — Not used in this set.
10 D SW I Down switch input (SW4)
11 SSTP I Limit switch input (SW3)

12, 13 NCO — Not used in this set.
14, 15 ——Not used in this set.

16 EMPH O O De-emphasis ON/OFF control output
17 CDMON O CD mechanism deck power control output
18 CD ON O CD power control output
19 A MUT O System attenuate control output
20 LD ON O Laser power ON/OFF control output
21 CD RST O CD system reset output
22 HOLD O Hold switch output
23 AGC CONT O AGC control output
24 ——Not used in this set.
25 PH3 I Not used in this set.
26 TSTIN0 I Not used in this set.
27 TSTIN1 I Not used in this set.
28 TST.CLV I Not used in this set.
29 NCO — Not used in this set.
30 RESET I System reset input (“L”=Reset)
31 X IN I X’tal oscillator input from system clock. (10 MHz)
32 X OUT O X’tal oscillator output for system clock. (10 MHz)
33 GND — Analog ground
34 XT OUT O Not used in this set.
35 XT IN I Not used in this set.
36 AVSS — A/D converter ground
37 AVREF I A/D converter reference voltage input
38 TEP L I Not used in this set.
39 TEP H I Not used in this set.
40 SLED– I Sled drive input
41 PH2 I Not used in this set.
42 SEK/SMET I Fixed at “H” in this set.
43 GFS/MNT2 SEL I Fixed at “H” in this set.
44 SC-JIG ON/OFF I Fixed at “H” in this set.
45 SCLK O CD-TEXT data read clock output
46 LOCK I/O Lock signal input/output
47 ——Not used in this set.
48 SCK2 O Sub Q read clock output
49 SI2 I Sub Q 80 bit, PCM peak and level data 16 bit input.
50 ——Not used in this set.
51 BUS CLK I/O Bus system serial clock input/output
52 BUS SI I Bus system serial interface input
53 BUS SO O Bus system serial interface output
54 F OK I Focus OK signal input
55 GFS I GFS signal detection input
56 TEST MODE I Fixed at “H” in this set.

19

Pin No. Pin Name I/O Pin Description

57 SENS I SENS signal input
58 ——Not used in this set.
59 ——Not used in this set.
60 BU.IN I Back-up power detection input
61 BUSON I Bus on control input
62 IN SW I Disc in switch input (SW1)
63 SELF SW I Self switch input (SW2)
64 SCOR O Sub-code sync output
65 CD-CKO O CD signal process serial clock input
66 LM LOD O Loading motor control output
67 CD DATA O CD signal process serial data output
68 CD-XLAT O CD signal process serial data latch output
69 LM-EJ O Loading motor control output
70 DRV-OE O Focus/tracking coil/sled motor control output
71 MD2 O Digital out ON/OFF control output (“L”: OFF, “H”: ON)
72 VDD — Power supply pin
73 NIH I Fixed at “H” in this set.
74 V/Z I Fixed at “H” in this set.
75 PH1 I Not used in this set.
76 ——Not used in this set.
77 DOUT-SEL I Fixed at “H” in this set.

78 – 80 ——Not used in this set.

20

• IC501 MB90574PMT-G-266-BND (SYSTEM CONTROL) (MAIN BOARD)

Pin No. Pin Name I/O Pin Description

1 TUNON O Tuner power control output (+5 V)

2 ——Not used. (Open)

3 BUSON O SONY-BUS ON control output

4 – 6 ——Not used. (Open)

7 ILLON O Illumination power control output

8 VCC — Power supply pin (+5 V)

9 E2P SIO I/O E2P SONY-BUS serial data input/output
10 E2P CKO I/O E2P SONY-BUS serial clock input/output
11 SYSRST O SONY-BUS system reset output
12 DOORSW (WRITE OUT) I DOOR OPEN/CLOSE detection input (“L”: CLOSE, “H”: OPEN)
13 LCDSO (WRITE IN) O LCD serial data output
14 LCDCKO O LCD serial clock output
15 LCDCE O LCD chip enable output
16 BEEP O BEEP output
17 UNISI I SONY-BUS serial data input
18 UNISO O SONY-BUS serial data output
19 UNICKO O SONY-BUS serial clock output
20 UNICKI I SONY-BUS serial clock input
21 CD MD I CD/MD select input (“L”: CD, “H”: MD) (Fixed at “L” in this set)
22 FLASHW I Flash memory write mode detection input
23 ——Not used. (Open)
24 SIRCS I Remote commander (infrared ray reception) input

25 – 28 ——Not used. (Open)

29 DOORIND O DOOR indicator output
30 IFWIDTH O Not used in this set.
31 ——Not used. (Open)
32 NS MASK O Noise mask output
33 VSS — Ground
34 C — Condenser connection pin of power stabilization.
35 AD ON O Power control output for A/D converter.

36, 37 REIN0, 1 I Rotary encoder 0, 1 input

38 DVCC — D/A converter Vref pin (+5 V)
39 DVSS — D/A converter ground pin

40, 41 ——Not used. (Open)

42 AVCC — Analog power supply pin (+5 V)
43 AVRH — A/D converter Vref+ pin (+5 V)
44 AVRL — A/D converter Vref– pin
45 AVSS — Analog ground

46, 47 KEYIN0, 1 I Key 0, 1 input

48 RCIN0 I Rotary commander key input
49 DSTSEL I Destination setting input (Fixed at “L” in this set)
50 QUALITY I Noise detection input
51 FMAGC I FM AGC detection input
52 MPTH I Multi path detection input
53 VSM I Signal meter detection input
54 VCC — Power supply pin (+5 V)
55 RAMBU I RAM reset detection input
56 TUNATT O TUNER mute control output
57 VOLATT O Electric volume mute output
58 ATT O LINE mute output
59 AMPON O Power amplifier standby control output
60 AMPATT O Power amplifier mute control output

21

Pin No. Pin Name I/O Pin Description

61 COLSW I

62 COLSEL I Illumination color select input (“L”: AMBER, “H”: GREEN) (Fixed at “L” in this set)
63 VSS — Ground
64 DAVN I Block synchronization detection input of RDS data.
65 FILE I Custom file setting input
66 TEXT I CD text setting input
67 NOSESW I Front panel attachment detection input

68, 69 ——Not used. (Open)

70 I2C SIO I/O I2C BUS serial data input/output
71 I2C CKO I/O I2C BUS serial clock input/output
72 ——Not used. (Open)
73 X1A — Low speed oscillation connecting pin (32.768 kHz)
74 X0A — Low speed oscillation connecting pin (32.768 kHz)
75 ——Not used. (Open)
76 KEYACK I Key acknowledge input
77 BUIN I Backup voltage detection input
78 ILLIN I Illumination (ILLIN) detection input (Fixed at “L” in this set)
79 TELATT I Telephone (TEL) detection input (Fixed at “L” in CDX-C4900R)
80 ——Not used. (Open)
81 TEST IN I Test mode setting input
82 ACC IN I Accessory power supply (ACC) detection input
83 ——Not used. (Open)
84 LOCKIN I MD LOCK detection input
85 RCIN1 I Rotary commander SHIFT input
86 HSTX I Hardware standby setting input
87 MD2 I Connect to VSS in this set.

88, 89 MD1, 0 I Connect to VCC in this set.

90 RSTX I Reset input
91 VSS — Ground
92 X0 — High speed oscillation connecting pin (3.68 MHz)
93 X1 — High speed oscillation connecting pin (3.68 MHz)
94 VCC — Power supply pin (+5 V)

95 – 97 ——Not used. (Open)

98 DIM SEL I
99 TAP CD I TAPE/CD select input (“L”: CD, “H”: TAPE) (Fixed at “L” in this set)

100 – 118 ——Not used. (Open)

119 VSS — Ground
120 PW ON O System power control output

Illumination color switch input (“L”: 2 colors, “H”: 1 color) (Fixed at “L” in
CDX-C4900R/C5000R, “H” in CDX-C5000RX)

Dimmer select input (“L”: With dimmer select, “H”: Without dimmer select)
(Fixed at “L” in this set)

22

3-2. BLOCK DIAGRAM — CD SECTION —

CDX-C4900R/C5000R/C5000RX

PD

LD

TRACKING

04

OPTICAL PICKUP

KSS-720A

A

C
B

D

CONV.

E
F

FOCUS

COIL

COIL

I-V

M902
SLED

MOTOR

M901

SPINDLE

MOTOR

M903

LOADING

MOTOR

A

5

C

7

B

6

D

8

FOCUS
ERROR

E

11

TRACKING

F

ERROR

10

PD

4

LD

LD

DRIVE

Q101

TRACKING/FOCUS COIL DRIVE

SLED/SPINDLE/LOADING MOTOR DRIVE

10
11

12
13

AMP

LD

3

IC7

FOCUS

COIL

DRIVE

TRACKING

8

COIL

DRIVE

9

SLED

6

MOTOR

7

DRIVE

SPINDLE

MOTOR

DRIVE

LOADING

5

MOTOR

4

DRIVE

RF AMP, LD APC,

ERROR AMP

IC1

22
21

25
24

31
32

18

1
2

MUTE 1

34

MUTE 2

35

RFO RFAC

RF

EQ

FE

TE

LD ON

HOLD SW

AGC CONT

16

14

13

22
21
20

DIGITAL SERVO,

DIGITAL SIGNAL PROCESSOR

IC501

(Page 24)

Q706

(Page 24)

B

SW503

(RESET)

TUNER

SECTION

SYSTEM CONTROL

58
12

20
19
17
18

3
11
77

90
86

1 3

BUS INTERFACE

10 3

13 2

12

9

8

8

IC501 (1/3)

ATT
DOOR SW

UNI CKI
UNI CKO
UNI SI
UNI SO
BUS ON
SYS RST
BU IN

RSTX
HSTX

IC652

RESET

BATT (H)

CHECK

Q701

IC701

BATT (L)

CHECK

RESET

RESET

DATA

CLK

1

6

4

BU 5V

BATT

BATT

Q705

• Signal path

SIRCS

8

6

3

5

2

4

1

7

CN701

BUS

CONTROL IN

C

DISPLAY
SECTION

(Page 25)

LOUT1
LOUT2

LOCK

SQSO
SQCK
SCOR

XRST
DATA
XLAT
SCLK
CLOK
SENS

XTALI

XTALO

MD2

GFS
FOK

92
95

34

6
7

24

73
11
13
14
17
15
16
22
32

86

87

11V REG

Q361

SW4

(LIMIT)

SW1

(DISC IN)

SW3

(LOAD IN)

SW2

(SELF)

RFDC

FE

TE

SE

FFDR
FRDR

TFDR
TRDR

SFDR
SRDR

MDP

CD 5V

CD 6V

EFM
DEM

SERVO

CTL

61

54

50

52

51

42
43

40
41

38
39

35

5V REG

Q364

D/A

I/F

DIGITAL

CLV

D/A

CONV.

SUB

CODE

PROCESS

POWER

CONT
Q365

6V REG

Q362

X2

16MHz

POWER

CONT
Q363

CD L

R-CH

BATT

TUNER

A

SECTION

CD SYSTEM CONTROL

LOCK

46

SI2

49

SCK2

48

SCOR

64

MD2

71

CD RST

21

CD DATA

67

CD XLAT

68

SCLK

45

CD CKO

65

SENS

57

GFS

55

FOK

54

SSTP

11

D SW

10

IN SW

64

SELF SW

63

LM EJ

69

LM LOD

66

SLED –

40

DRIVE ON

70

LD ON

20

HOLD

22

AGC CONT

23

CD ON

18

CDM ON

17

IC5

A MUT

OPEN

BUS CLK

BUS SI

BUS ON

RESET

BU IN

X IN

X OUT

BUS SO

LNK OFF

19

51
52

61
30
60

31

32

53

6

8

(KEY BOARD)

X1

10MHz

ATT

:CD

23 23

CDX-C4900R/C5000R/C5000RX

3-3. BLOCK DIAGRAM — TUNER SECTION —

J1

(ANTENNA)

TUNER UNIT

TU1

ANTFM MPX

2 10

AM DET

ANTAM

1

IF AM

S-METER

I2C SDA
I2C SCL

RDS DET

CNJ151–1, –2
BUS AUDIO IN

–1

–2

L

R

ELECTRONIC VOLUME

IC151

A

CD

CDL

Q121

MUTE

RDS DECODER

IC51

8

Q111
MUTE

IC90

NOISE

DET

9

SECTION

MUTE
CONT

Q90

NOISE ON

10

MULTI

PATH

DET

RDS/RDBS

DEM/DEC

Q131

(Page 23)

8

19

BUFFER

Q1

5 1

14
12
13

SDA SCA

LV IN

20 2

9

MPX

16

R-CH

FDIL OUT LF

3 30

SEL

1

MPX

13

AM

11

AM IF

12

LEVEL

14

MPIN

15

SDA

20

SCL

21

SM

18

SYSTEM CONTROL

VOL ATT

57

TUN ATT

56

QUALITY

50

NS MASK

32

VSM

53

I2C SIO

70

I2C CKO

71

MPTH

52

DAVN

64

IC501 (2/3)

AMP MUTE

OUT LR

BEEP

AMP ON

TEL ATT

ACC IN

TEST IN

TU ON

PW ON

29

MUTE

16
59
60
79

82

81

1

120

Q181

MUTE
CONT

Q621, 622

CNJ151–3, –4

AUDIO OUT REAR

–3L–4

R

R-CH

Q171

MUTE

ATT

SECTION

(Page 23)

BATT

CNJ151–5, –6

AUDIO OUT FRONT

–5L–6

R

-CH
R

B

CD

ACC

CHECK

Q661

POWER SUPPLY

IC671

7 6

VCC AMP +B

2
3

4

8.7V ON

5.6V ON

STB

ANT +B

BU+B BU 5V
COM 8V
TU 5.6V
TU 8.7V

POWER AMP

12

11

AUX IN

16

STAND BY

4

MUTE

22

TEL
ATT

Q571

8

5

9
10
11

C5000R/C5000RX

IC611

5
3

9
8

BATT

COM 8V
TU 5.6V
TU 8.7V

R-CH

F901

CN601

1
9

2

10

4

12

3

11

16

13

7

15

5

6

FL+
FL–

RL+
RL–

FR+
FR–

RR+
RR–

BATT

C5000R/C5000RX

ATT

ACC

TEST

AMP R

ANT R

OSCO OSCI

4 5

FM AGC
E2PROM SDA
E2PROM SCL

04

4
17
18

X51

4.332MHz
51

9

10

FM AGC
E2P SIO
E2P CKO

• Signal path
:FM

:MW
:CD

2424