Sony CDC-X204 User manual

1
Ver 1.0 2004. 01
Model Name Using Similar Mechanism CDX-R3000/R3000T
CD Drive Mechanism Type MG-611XC-186//Q
Optical Pick-up Name KSS1000E
SERVICE MANUAL
US Model
Canadian Model
CDC-X204/X304/X444
AEP Model
UK Model
CDC-R304/X304
East European
Model
CDC-X104EE
CDC-R304/X104EE/X204/
X304/X444
• CDC-X304: US model/X444
AUDIO POWER SPECIFICATIONS
POWER OUTPUTAND TOTAL HARMONIC DISTORTION
23.2 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
• CDC-X204
AUDIO POWER SPECIFICATIONS
POWER OUTPUTAND TOTAL HARMONIC DISTORTION
22 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 5% total harmonic distortion.
Tuner section
FM
Tuning range US, Canadian Model:
87.5 – 107.9 MHz
AEP, UK Model:
87.5 – 108 MHz
CDC-X104EE:
FM1/FM2:
87.5 – 108.0 MHz
(at 50 kHz step)
FM3: 65 – 74 MHz
(at 30 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 67 dB (stereo),
69 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo),
0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM (US, Canadian Model)
Tuning range 530 – 1,710 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
SPECIFICATIONS
AM (CDC-X104EE)
Tuning range 531 – 1,602 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
MW/LW (AEP, UK Model)
Tuning range MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity MW: 30 µV
LW: 40 µV
• The tuner and CD sections have no adjustments.
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
9-877-519-01
2004A04-1
© 2004. 01
Photo: CDC-R304
FM/AM COMPACT DISC PLAYER
US, Canadian, East European model
FM/MW/LW COMPACT DISC PLAYER
AEP, UK model
– Continued on next page –

2
CDC-R304/X104EE/X204/X304/X444
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LASÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SERVICE NOTES
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 pick-
up block. Therefore, when checking the laser diode emission, ob-
serve 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.
optical pick-up
semi-fixed resistor
• US, Canadian model
• AEP, UK model
CAUTION
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
This compact disc player is classified as a CLASS 1 LASER
product. The CLASS 1 LASER PRODUCT label is located on the
exterior.
This label is located on the bottom of the chassis.
CD player section
Signal-to-noise ratio US, Canadian Model: 110 dB
AEP, UK Model/CDC-X444: 120 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output CDC-R304/X304/X444:
52 W ×4 (at 4 ohms)
CDC-X104EE/X204:
45 W ×4 (at 4 ohms)
General
Outputs Audio outputs terminal (rear/sub switchable)
Power antenna relay control terminal
Power amplifier control terminal
Inputs TelephoneATT control terminal (AEP, UK Model/
CDC-X444)
Antenna input terminal
Tone controls Low: ±10 dB at 60 Hz (HIP-HOP)
Mid: ±10 dB at 1 kHz (HIP-HOP)
High: ±10 dB at 10 kHz (HIP-HOP)
Power requirements 12 V DC car battery (negative ground)
Dimensions Approx. 178 ×50 ×176 mm
(7 1/8 ×2 ×7 in.) (w/h/d)
Mounting dimensions Approx. 182 ×53 ×161 mm
(7 1/4 ×2 1/8 ×6 3/8 in.) (w/h/d)
Mass Approx. 1.2 kg (2 lb. 10 oz.)
Supplied accessories Parts for installation and connections (1 set)
Front panel case (1)
Card remote control RM-Z304 (CDC-X444)
Design and specifications are subject to change without
notice.
TEST DISCS
This set can playback CD-R and CD-ROM discs. The following
test discs should be used to check the capability:
CD-R test disc TCD-R082LMT (Part No. J-2502-063-1)
CD-RW test disc TCD-W082L (Part No. J-2502-063-2)

3
CDC-R304/X104EE/X204/X304/X444
zUNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SERVO BOAR
D
CN1
J-2502-076-1
MAIN BOARD
CN301
Notes on CD-R/CD-RW discs
•You can play CD-Rs (recordable CDs)/CD-RWs (rewritable CDs)
designed for audio use on this unit.
Look for these marks to distinguish CD-Rs/CD-RWs for audio
use.
These marks denote that a disc is not for audio use.
•Some CD-Rs/CD-RWs (depending on the equipment used for
its recording or the condition of the disc) may not play on this
unit.
•You cannot play a CD-R/CD-RW that is not finalized∗.
∗A process necessary for a recorded CD-R/CD-RW disc to be
played on the audio CD player.
EXTENSION CABLE AND SERVICE POSITION
Whenrepairingor servicingthisset, connect thejig(extensioncable)
as shown below.
•Connect the MAIN board (CN301) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-076-1).

4
CDC-R304/X104EE/X204/X304/X444
TABLE OF CONTENTS
1. GENERAL
Location of Controls................................................................ 5
Connections (US, Canadian Model)........................................ 6
Connections (AEP, UK Model) ............................................... 7
2. DISASSEMBLY
2-1. Sub Panel Assy .................................................................... 9
2-2. CD Mechanism Block ......................................................... 9
2-3. Main Board ....................................................................... 10
2-4. Chassis (T) Sub Assy ........................................................ 10
2-5. Roller Arm Assy ................................................................ 11
2-6. Chassis (OP) Assy ............................................................. 11
2-7. Optical Pick-up ................................................................. 12
2-8. SL MotorAssy (M902) ..................................................... 12
2-9. LE Motor Assy (M903) ..................................................... 13
2-10. Servo Board....................................................................... 13
3. DIAGRAMS
3-1. IC Pin Descriptions ........................................................... 14
3-2. Block Diagram –CD Section–........................................... 18
3-3. Block Diagram –Main Section–........................................ 19
3-4. Block Diagram –Display Section–.................................... 20
3-5. Circuit Boards Location .................................................... 20
3-6. Note for Printed Wiring Boards and
Schematic Diagrams .......................................................... 21
3-7. Waveforms......................................................................... 21
3-8. Printed Wiring Boards –CD Mechanism Section–............22
3-9. Schematic Diagram –CD Mechanism Section– ................23
3-10. Schematic Diagram –Main Section (1/2)– ........................ 24
3-11. Schematic Diagram –Main Section (2/2)– ........................ 25
3-12. Printed Wiring Board –Main Section– .............................. 26
3-13. Printed Wiring Boards –Display Section– ........................27
3-14. Schematic Diagram –Display Section–............................. 28
3-15. IC Block Diagrams............................................................ 29
4. EXPLODED VIEWS
4-1. Main Section ..................................................................... 32
4-2. Front Panel Section ........................................................... 33
4-3. CD Mechanism Section (1) ...............................................34
4-4. CD Mechanism Section (2) ...............................................35
4-5. CD Mechanism Section (3) ...............................................36
4-6. CD Mechanism Section (4) ...............................................37
5. ELECTRICAL PARTS LIST ........................................ 38

5
CDC-R304/X104EE/X204/X304/X444
SECTION 1
GENERAL This section is extracted
from instruction manual.
LOCATION OF CONTROLS

6
CDC-R304/X104EE/X204/X304/X444
CONNECTIONS (US, Canadian Model)

7
CDC-R304/X104EE/X204/X304/X444
CONNECTIONS (AEP, UK Model)

8
CDC-R304/X104EE/X204/X304/X444SECTION 2
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
2-1. SUB PANEL ASSY
(Page 9)
2-2. CD MECHANISM BLOCK
(Page 9)
SET
2-3. MAIN BOARD
(Page 10) 2-4. CHASSIS (T) SUB ASSY
(Page 10)
2-5. ROLLER ARM ASSY
(Page 11)
2-6. CHASSIS (OP) ASSY
(Page 11)
2-8. SL MOTOR ASSY (M902)
(Page 12)
2-10. SERVO BOARD
(Page 13)
2-7. OPTICAL PICK-UP
(Page 12) 2-9. LE MOTOR ASSY (M903)
(Page 13)

9
CDC-R304/X104EE/X204/X304/X444
2-2. CD MECHANISM BLOCK
Note : Follow the disassembly procedure in the numerical order given.
2-1. SUB PANEL ASSY
2 two claw
s
3 two claws
4 sub panel assy
1 two screws
(+PTT 2.6
x 6)
7 bracket (CD)
5 CD mechanism block
4 CN301
3
1 screw
(+PTT 2.6 x 6
)
2 screw
(+PTT 2.6 x 6)
6 two screws
(+PTT 2.6 x 4)

10
CDC-R304/X104EE/X204/X304/X444
2-4. CHASSIS (T) SUB ASSY
2-3. MAIN BOARD
1 three ground point screws
(+PTT 2.6 x 6)
3 MAIN board
2 two screws
(+PTT 2.6
x 6
)
insulating sheet
5 SENSOR board
6 chassis (T) sub assy
4 claw
3 claw
1 two screws
(+P 1.7
x 2.2)
2 two screws
(+P 1.7
x 2.2)

11
CDC-R304/X104EE/X204/X304/X444
2-5. ROLLER ARM ASSY
2-6. CHASSIS (OP) ASSY
3 washer (0.8-2.5)
4 worm wheel (RA)
5 roller arm assy
1 spring (RAL)
2 spring (RAR)
4 washer
0 coil spring (damper)
9 two coil springs (damper)
qa chassis (OP) assy
5 gear (LE1)
1 CN2
lever (D)
slider (R)
6
7
8
2 Remove the six solderings.
3 tension coil spring (KF)

12
CDC-R304/X104EE/X204/X304/X444
2-7. OPTICAL PICK-UP
2-8. SL MOTOR ASSY (M902)
1 tension coil spring (CHKG
)
2 chucking arm sub assy
3 screw
(+B 1.4
x 5)
4 rack (SL)
5 claw
6 main shaft
7 optical pick-up
1 screw
(+P 1.4 x 1.8)
2 SL motor assy (M902)

13
CDC-R304/X104EE/X204/X304/X444
2-9. LE MOTOR ASSY (M903)
2-10. SERVO BOARD
2 washer
4
qd
3
gear (LE1)
7 leaf spring (LE)
5
lever (D)
bracket (LEM)
slider (R)
6 screw
(+P 1.7
x 2.2)
8 screw
(+M 1.7
x 2.5)
qa screw
(+M 1.7
x 2.5)
qf two toothed lock screws
(+M 1.4
)
qs screw
(+M 1.7
x 2.5)
9 bearing (LEB)
0 woam (LEB) assy
qg LE motor assy
(M903)
1 Remove the soldering.
3 CN2
5 claw
6 SERVO board
4 toothed lock screw
(M 1.7)
1 Remove the eight solderings.
2 Remove the three solderings.

14
CDC-R304/X104EE/X204/X304/X444
3-1. IC PIN DESCRIPTIONS
• IC1 µPD63712GC-8EU-A (RF AMP, DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD)
Pin No. Pin Name I/O Pin Description
1LDOLaser diode ON/OFF control signal output (L: laser OFF, H: laser ON)
2PDIDimmer monitor input from optical pick-up laser diode.
3PNINot used. (Fixed at L in this set)
4AVDD — Analog power supply pin (+3.3 V)
5DGND — Ground
6RFOK O RFOK signal output to system control IC.
7INTQ O CD text pack synchronization signal output to system control IC.
8RST I CD reset signal input from system control IC.
9A0I
Command/parameter discrimination signal input from system control IC.
(L: command transmission, H: parameter transmission)
10 STB I Data strobe signal input from system control IC.
11 SCK I Serial clock input from system control IC.
12 SO O Serial data output to system control IC.
13 SI I Serial data input from system control IC.
14 DVDD — Power supply pin (+3.3 V)
15 DAVDD — D/A converter power supply (+) pin (+3.3V)
16 ROUT O Analog audio signal output (R-ch)
17 DAGND — Ground
18 REGC — Capacitor connection pin for SCF regulator.
19 DAGND — Ground
20 LOUT O Analog audio signal output (L-ch)
21 DAVDD — D/A converter power supply (+) pin (+3.3V)
22 XVDD — Power supply pin (+3.3V)
23 XTAL O Main system clock output (16.9344 MHz)
24 XTAL I Main system clock input (16.9344 MHz)
25 XGND — Ground
26 DVDD — Power supply pin (+3.3 V)
27 C1D1/FZD O Not used. (Open)
28 C1D2/TZD O Not used. (Open)
29 C2D1/RMUTE O CD R-ch data zero detection signal output
30 C2D2/LMUTE O CD L-ch data zero detection signal output
31 C2D3/SHOCK/SBSY O Not used. (Open)
32 LOCK/FR O Not used. (Open)
33 WFCK/MIRR O Not used. (Open)
34 RFCK/HOLD O Not used. (Open)
35 PLCK O Not used. (Open)
36 C16M O Not used. (Open)
37 DGND — Ground
38 TX O Not used. (Open)
39 EMPH/RAMOVER O Not used. (Open)
40 FLAG O Not used. (Open)
41 DVDD — Power supply pin (+3.3 V)
42 LIMIT I Not used. (Fixed at L in this set)
43 XTALEN I Oscillation circuit ON/OFF control signal input (L: ON, H: OFF)
(Fixed at L in this set)
44 DGND — Ground
45 DIN I Not used. (Connect to DOUT in this set)
46 DOUT O Not used. (Connect to DIN in this set)
47 SCKIN I Not used. (Connect to SCKO in this set)
48 SCKO O Not used. (Connect to SCKIN in this set)
49 LRCKIN I Not used. (Connect to LRCK in this set)
SECTION 3
DIAGRAMS

15
CDC-R304/X104EE/X204/X304/X444
Pin No. Pin Name I/O Pin Description
50 LRCK O Not used. (Connect to LRCKIN in this set)
51 DVDD — Power supply pin (+3.3 V)
52 FD+ O Focus servo drive PWM signal output (+)
53 FD– O Focus servo drive PWM signal output (–)
54 TD+ O Tracking servo drive PWM signal output (+)
55 TD– O Tracking servo drive PWM signal output (–)
56 SD+ O Sled servo drive PWM signal output (+)
57 SD– O Sled servo drive PWM signal output (–)
58 MD+ O Spindle servo drive PWM signal output (+)
59 MD– O Spindle servo drive PWM signal output (–)
60 DGND — Ground
61 TESTEN I Test setting input (Fixed at L in this set)
62 to 66 TEST4 to TEST0 I Test setting input (Fixed at L in this set)
67 ADGND — A/D converter power supply (–) pin
68 EFM O EFM signal output
69 ASY I EFM comparator reference voltage input
70 ADVDD — A/D converter power supply pin (+3.3 V)
71 RFI I RF signal input for EFM data growing.
72 EQ2 — Not used. (Open)
73 EQ1 — RF amplifier equalizer parts connection pin
74 RF– I Not used. (Open)
75 RF2– I RF amplifier inversion input
76 AGCO O RF signal output after on AGC.
77 AGCI I RF AGC signal amplifier input
78 RFO O RF signal output before onAGC.
79 ATEST I Not used. (Open)
80 C3T — Capacitor connection pin for 3T detection.
81 AGND — Ground
82 A I Signal input (A) from optical pick-up detector.
83 C I Signal input (C) from optical pick-up detector.
84 B I Signal input (B) from optical pick-up detector.
85 D I Signal input (D) from optical pick-up detector.
86 F I Signal input (F) from optical pick-up detector.
87 E I Signal input (E) from optical pick-up detector.
88 VREFIN I Reference voltage (+1.65 V) input
89 AVDD — Analog power supply pin (+3.3V)
90 REFOUT O Reference voltage (+1.65 V) output
91 REFC — Capacitor connection pin for reference voltage output.
92 FE– I Focus error signal amplifier inversion input
93 FEO O Focus error signal amplifier output
94 ADCIN I Not used. (Open)
95 TE- I Tracking error signal amplifier inversion input
96 TEO O Tracking error signal amplifier before output
97 TE2 O Tracking error signal amplifier after output
98 TEC I Tracking error signal comparator input
99 AGND — Ground
100 PWMSW I Not used. (Fixed at L in this set)

16
CDC-R304/X104EE/X204/X304/X444
• IC501 MN101E01KAB (SYSTEM CONTROL) (MAIN BOARD (1/2))
Pin No. Pin Name I/O Pin Description
1DAVDD — Power supply pin for D/A output converter (+3.3V)
2BBE-MP O Not used in this set. (Open)
3DAVSS — Ground pin for D/A output converter
4 to 6 NCO O Not used in this set. (Open)
7UNISO O SONY-BUS data signal output Not used in this set. (Open)
8UNISI I SONY-BUS data signal input Not used in this set.
9UNICKO O SONY-BUS clock signal output Not used in this set.
10 VDD1 — Power supply pin for internal core (+3.3V)
11 MMOD I Flash microcomputer write detection signal input Not used in this set.
12 OSCOUT O High speed operation clock signal output (27 MHz)
13 OSCIN I High speed operation clock signal input (27 MHz)
14 VSS1 — Ground pin for internal core
15 XIN I Low speed operation clock signal input (32.768 kHz)
16 XOUT O Low speed operation clock signal output (32.768 kHz)
17 VDD2 — Power supply pin for internal core (+3.3V)
18 MOD1 — Pull up: “H”
19 RESET I Reset signal input
20 NCO O Not used in this set. (Open)
21 ACC IN I Accessory power supply detection signal input
22 TEST IN I Test mode detection signal input
23 TEL ATT I Telephone attenuate detection signal input
24 ATT O Audio mute control signal output
25 XKEYON O Key power supply control signal output Not used in this set. (Open)
26 NCO O Not used in this set. (Open)
27 KEYACK I Key acknowledge detection signal input
28 TU ATTIN I Tuner mute ZERO cross detection signal input
29, 30 NCO O Not used in this set. (Open)
31 BUIN I Back up power supply detection signal input
32 CD INTQ I CD servo IC CD text pack synchronization signal input
33 CD SO O CD servo IC serial data signal output (for command/text)
34 CD SI I CD servo IC serial data signal input (for command/text)
35 CD SCK O CD servo IC serial clock signal output (for command/text)
36 BUSON O BUS on signal output
37 SYSRST O System reset signal output
38 CD RFOK I CD servo IC RFOK signal input
39 CD RST O CD servo IC reset signal output
40 CD A0 O CD servo IC command/parameter identification signal output
Command transmission: “L”, Parameter transmission: “H”
41 CD STB O CD servo IC data strob signal output
42 CD MUTE R I Mechadeck mute zero cross detection signal input R
43 CD MUTE L I Mechadeck mute zero cross detection signal input L
44 CD INSW I CD mecha disc in switch detection signal input
45 CD SELFSW I CD mecha self load position detection switch signal input
46 CD LM LO O CD mecha loading motor control signal output
47 CD LM EJ O CD mecha eject motor control signal output
48 CD DSW I CD mecha down switch detection signal input
49 CD LIMIT I CD mecha in-limit switch signal input
50 NCO O Not used in this set. (Open)
51 AREASEL1 I Destination function setting input 1
52 AREASEL2 I Destination function setting input 2
53 AREASEL3 I Destination function setting input 3

17 17
CDC-R304/X104EE/X204/X304/X444
Pin No. Pin Name I/O Pin Description
54 LCD CTL O “H” output: LCD unit and key confusion, power off
“L” output: LCD unit and key confusion, power on
55, 56 NCO O Not used in this set. (Open)
57 DSSA O DSSA on/off change signal output (Cut off rear)
58 PANEL SW I Front panel attachment detection signal input “L”: with panel, “H”: without panel
59 DIAG I Condition signal input from the power IC
60 VOLATT O Electronic volume attenuate control signal output
61, 62 NCO O Not used in this set. (Open)
63 VSS2 — Ground pin for I/O port
64 TU ATT O Tuner mute control signal output
65 NCO O Not used in this set. (Open)
66 NS MASK O Noise mask signal output
67 EEP CKO O Serial clock signal output for EEPROM communication
68 EEP SIO I/O Serial data signal input/output for EEPROM communication
69 NCO O Not used in this set. (Open)
70 AMPSTB O Power regulator IC standby signal output
71 to 73 NCO O Not used in this set. (Open)
74 NCO O Not used in this set. (Open)
75 COL SEL I “H”: Front panel illumination green (Initial value)
“L”: Front panel illumination amber (Initial value)
76 LCDSO O Serial data signal output to the LCD driver
77 LCDCE O Chip enable signal output to the LCD driver
78 LCDCKO O Serial clock signal output to the LCD driver
79 I2C SIO I/O I2C BUS serial data signal input/output
80 NCO O Not used in this set. (Open)
81 I2C CKO O I2C BUS serial clock signal output
82 DAVN I RDS data block synchronization detection signal input
83 SIRCS I Remote control signal input
84 NCO O Not used in this set. (Open)
85 BEEP O Beep signal output to the power amp
86 to 88 NCO O Not used in this set. (Open)
89 VDD3 — Power supply pin for I/O port (+3.3V)
90 COL SW I “L” input: two color change/initial slave color: amber
“H” input: one color/slave color: white
91 VSS3 — Ground pin for I/O port
92 QUALITY I Noise detection signal input
93 VSM I S meter voltage detection signal input
94 KEYIN1 I Key signal input 1
95 KEYIN0 I Key signal input 0
96 NCO O Not used in this set.
97 KEYIN2 I Key signal input (EJECT, OFF, SOURCE switch)
98 RE I Rotary encoder signal input
99 L METER I Level meter voltage detection signal input
100 VREF+ — Power supply pin for A/D input converter

1818
CDC-R304/X104EE/X204/X304/X444
3-2. BLOCK DIAGRAM — CD SECTION —
76
AGCO
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC1
78
RFO
93
FEO
96
TEO
77 AGCI
92 FE–
95 TE– 97
TE2 98 TEC
52 FD+
PD1
PD2
E
F
I-V AMP
PD LD
DETECTOR
71 RFI 68
EFM 69 ASY
84
82
85
83
87
86
E
C
D
A
B
F
1LD 2
PD
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Siganal Path
: CD PLAY
LASER DIODE
M
M
M
13
14
VO1–
VO1+
15
16
VO4+
VO4–
17
18 VO3–
VO3+
10
9
VOL+
VOL–
FWD
REV
1
28
OPIN2+ 5
53 FD–
OPIN2– 6
54 TD+
OPIN1+ 2
55 TD–
OPIN1– 3
56 SD+
OPIN4+ 27
57 SD–
OPIN4– 26
58 MD+
OPIN3+ 24
59 MD–
OPIN3– 23
11
12
VO2–
VO2+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC2
12
SO
13
SI
11
SCK
6
RFOK
7
INTQ
10
STB
9
A0
8
RST
CD-L MAIN
SECTION
A
20
LOUT
16
ROUT R-CH
35 CD_SCK
38 CD RFOK
32 CD INTQ
41 CD STB
45 CD_SELFSW
44 CD_INSW
49 CD_LIMIT
40 CD_A0
39 CD RST
CD LM LO
46
CD LM EJ
47
SYSTEM CONTROL
IC501 (1/3)
34 CD_SI
33 CD_SO
SW2
(SELF)
48 CD_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
30
LMUTE 43 CD MUTE L
29
RMUTE 42 CD MUTE R
PD2
E
F
LD
PD
FCS+
FCS–
TRK+
TRK–
PD1
AUTOMATIC
POWER
CONTROL
Q1
• R-ch is omitted due to same as L-ch.
24
23
X1
16.934MHz
XTAL
XTAL
(Page 19)

19 19
CDC-R304/X104EE/X204/X304/X444
1ANT 7TU-LCH
SOUND CONTROL,
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
POWER AMP
MULTIPLE VOLTAGE
REGULATOR
IC750
SYSTEM CONTROL
IC501 (2/3)
CN601
6TU-RCH
R-CH (FRONT)
R-CH (REAR)
BATT
9CD-LCH
5AUX-LCH
3AUX-RCH
8CD-RCH
R-CH
4
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU-SCL
14
TU-SDA
9
RDS
6
5
8
MULTI
CONDITION
QUALITY
7
S-METER
16
TU MUTE
E2P SCL
17
E2P SDA
99 L METER
82 DAVM
28 TU ATTIN
92 QUALITY
66 NS MASK
93 VSM
64 TU ATT
67 EEP CKO
68 EEP SIO
AUDIO+8.3V
TU+5V
BACK UP+3.3V
L
R
CD-L
J601
(AUX IN)
R-CH
R-CH
15 OUT-SEL-R
OUT-SEL-L
16
R-CH
17
18
OUT SUB L
OUT SUB R R-CH
L
R
5
3
OUT-FL+
OUT-FL–
OUT-RL+
OUT-RL–
9
7
29
27
AMP-REM
R-CH
ANT-REM
BATT
30
37
AUDIO+8.3V
B.UP+B
31
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
TU+5V
BATT
25
24
OUT-FR
OUT-RR
29
MUTE
2SDA
AUDIO+8.3V
BACK UP+3.3V
SERVO+3.3V
MECHA+6V
PANEL+10V
4SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
AUDIO+8.3V
35 VP
15
13
7
10
12
11
16
1
9
2
4
3
5
6
30
31
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
81
I2C SCK
79
I2C SIO
60
VOL ATT
24
ATT
85
BEEP
70
AMPSTB
59
DIAG
31
BUIN
22
TEST IN
12 IN-FL FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
23
OUT-FL
11 IN-RL
22
OUT-RL
MUTE
Q431
MUTE
Q481
AUDIO OUT
REAR
MUTE DRIVE
Q491,492
36
BUS ON
37
SYS RST
16 MPX
9XTI
10 XTO
11
SCL
12
SDA
SCL
SDA
15
INTN
7
VDDDVDDA
1
21
ACC IN ACC CHECK
Q631
TU+5V REG
Q1
BATT
LOW VOLTAGE
DETECT
Q581
BATTERY
CHECK
Q582
REAR L/R
CUT OFF
SWITCH
Q403
DSSA ON/OFF
SWITCH
Q402
NS MASK
SWITCH
Q3
LEVEL METER
VOLTAGE DETECT
D401,402,Q401
RDS DEMODULATOR
IC51
MUTE
Q451
ATT
23
TEL ATT
57
DSSA
TEL ATT
Q651
D491,492
FU601
J331
D580
R304/X104EE/X304:
AEP,UK MODEL
D581
CD
SECTION
A
BATT
B+ SWITCH
Q51,52
BACK UP
+3.3V
OVER VOLTAGE
DETECT
Q580
X51
8.664MHz
R304
R304
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AM/MW/LW
: AUX
3-3. BLOCK DIAGRAM — MAIN SECTION —
(Page 18)

2020
CDC-R304/X104EE/X204/X304/X444
X502
32.768kHz
15
16
13
12
97
76
78
77
27
19
LCD DRIVER
IC901
KEYIN2
CLK
CE
LCD SO
LCD CKO
LCD CE
PANEL+10V
DIMMER
KEYACK
90 COL SW
75 COL SEL
RESET
2IN 1
OUT
XIN
XOUT
OSCIN
OSCOUT
X501
27MHz
S702
RESET
63
64
62
1
COM1
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
LED921,922
LCD
BACK LIGHT
3
|
50
54
|
51
|
SEG3
SEG50
|
DI
LED901-920
BACK UP+3.3V
()
KEY MATRIX
S901-903
95 KEYIN0
KEY MATRIX
S912-920
94 KEYIN1
KEY MATRIX
S904-910
S911 (2/2)
98
SYSTEM CONTROL
IC501 (3/3)
RE
54
LCD CTL
83
SIRCS
ROTARY
ENCODER
S911 (1/2)
RESET
IC602
BACK UP
+3.3V
R304/X204/
X304/X444
X104EE/X304:
US,CND MODEL
DIMMER
CONTROL
Q901
CL
CE
DIMMER
BUCK UP+3.3V
PANEL+3.3V
SWITCH
Q503
1
2OUT
VCC
REMOTE CONTROL
SIGNAL RECEIVER
IC971
IR
X444
3-4. BLOCK DIAGRAM — DISPLAY SECTION — 3-5. CIRCUIT BOARDS LOCATION
MAIN board
AUX board
KEY board
SENSOR board SERVO board
tuner uni
t
(TU1)