Sony CDX-CA730X User manual

1
Ver 1.1 2003. 02
Model Name Using Similar Mechanism CDX-CA700/CA700X
CD Drive Mechanism Type MG-393XA-121//Q
Optical Pick-up Name KSS-720A
SERVICE MANUAL
E Model
CDX-CA730X
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 FM tuning interval:
50 kHz/200 kHz switchable
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
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
AM
Tuning range AM tuning interval:
9 kHz/10 kHz switchable
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
SPECIFICATIONS
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 52 W ×4 (at 4 ohms)
General
Outputs Audio outputs (front /rear)
Power antenna relay control terminal
Power amplifier control terminal
Inputs Telephone ATT control terminal
BUS control input terminal
BUS audio input terminal
Remote controller input terminal
Aerial input terminal
Tone controls Bass ±10 dB at 62 Hz
Treble ±10 dB at 16 kHz
Loudness +8 dB at 100 Hz
+2 dB at 10 kHz
• The tuner and CD sections have no adjustments.
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
9-873-559-02
2003B0400-1
© 2003. 02
– Continued on next page –
FM/AM COMPACT DISC PLAYER

2
CDX-CA730X
optical pick-up bloc
k
semi-fixed resistor
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.
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-2501-063-1)
CD-RW test disc TCD-W082L (Part No. J-2501-063-2)
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.
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.
Power requirements 12 V DC car battery
(negative earth)
Dimensions Approx. 178 ×50 ×178 mm
(w/h/d)
Mounting dimensions Approx. 182 ×53 ×162 mm
(w/h/d)
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and connections (1 set)
Front panel case (1)
Card remote commander (1)
Note
This unit cannot be connected to a digital preamplifier or an equalizer.
Design and specifications are subject to change without
notice.
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 tay$alum capacitor may be dam-
aged by heat.

3
TABLE OF CONTENTS
1. GENERAL
Location of controls.................................................................4
Connections ............................................................................. 5
2. DISASSEMBLY
2-1. Sub Panel Assy .................................................................... 7
2-2. CD Mechanism Block ......................................................... 8
2-3. Main Board ......................................................................... 8
2-4. Heat Sink ............................................................................. 9
2-5. Chassis (T.U) Assy .............................................................. 9
2-6. Disc In Board .................................................................... 10
2-7. Servo Board....................................................................... 10
2-8. Shaft Roller Assy .............................................................. 11
2-9. Floating Block Assy .......................................................... 11
2-10. Optical Pick-up Block .......................................................12
MAIN BOARD CNP301
SERVO BOARD CN1
3. DIAGRAMS
3-1. IC Pin Description............................................................. 13
3-2. Block Diagram –CD Section–........................................... 15
3-3. Block Diagram –Tuner Section–....................................... 16
3-4. Block Diagram –Display Section–.................................... 17
3-5. Circuit Boards Location .................................................... 17
3-6. Printed Wiring Boards –CD Mechanism Section–............18
3-7. Schematic Diagram –CD Mechanism Section– ................ 20
3-8. Schematic Diagram –Main Section (1/3)– ........................ 21
3-9. Schematic Diagram –Main Section (2/3)– ........................ 22
3-10. Schematic Diagram –Main Section (3/3)– ........................ 23
3-11. Printed Wiring Board –Main Section– .............................. 24
3-12. Printed Wiring Board –Relay Section– ............................. 26
3-13. Schematic Diagram –Relay Section–................................ 27
3-14. Printed Wiring Board –Key Section– ................................ 28
3-15. Schematic Diagram –Key Section–...................................29
4. EXPLODED VIEWS
4-1. Chassis Section ................................................................. 33
4-2. Main Board Section ..........................................................34
4-3. Front panel Section ........................................................... 35
4-4. CD Mechanism Section (1) ............................................... 36
4-5. CD Mechanism Section (2) ............................................... 37
4-6. CD Mechanism Section (3) ............................................... 38
5. ELECTRICAL PARTS LIST ........................................ 39
CDX-CA730X
EXTENSION CABLE AND SERVICE POSITION
Whenrepairing or servicingthis set,connect the jig(extension cable)
as shown below.
• Connect the MAIN board (CNP301) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-062-1).

4
CDX-CA730X SECTION 1
GENERAL This section is extracted
from instruction manual.

5
CDX-CA730X
Connections

6
CDX-CA730X

7
CDX-CA730X
SECTION 2
DISASSEMBLY
Note : This set can be disassemble according to the following sequence.
Note : Follow the disassembly procedure in the numerical order given.
2-1. SUB PANEL ASSY
2-1. SUB PANEL ASSY
(Page 7)
2-2. CD MECHANISM BLOCK
(Page 8)
2-5. CHASSIS (T.U) ASSY
(Page 9)
2-6. DISC IN BOARD
(Page 10)
2-8. SHAFT ROLLER ASSY
(Page 11)
2-9. FLOATING BLOCK ASSY
(Page 11)
2-10. OPTICAL PICK-UP BLOCK
(Page 12)
SET
2-7. SERVO BOARD
(Page 10)
2-3. MAIN BOARD
(Page 8)
2-4. HEAT SINK
(Page 9)
1 PTT 2.6x6
5 CN701
6 SUB PANEL ASSY
3 CLA
W
4 CLAWS
2 PTT 2.6x6

8
CDX-CA730X
1 PTT 2.6x
4
4 PTT 2.6x6
5 PTT 2.6x6
6 MAIN board
2 PTT 2.6x4
3 PTT 2.6x4
1 PTT 2.6x
4
4 CNP301
5 PTT 2.6x4
6 bracket (CD)
7 CD mechanism block
2 PTT 2.6x4
3
2-2. CD MECHANISM BLOCK
2-3. MAIN BOARD

9
CDX-CA730X
4 chassis (T.U) sub ass
y
3 P 2x3
2 P 2x3
1 Unsolder the
lead wires.
black
red
white
2-5. CHASSIS (T.U) ASSY
2-4. HEAT SINK
1 PTT 2.6x10
3 PTT 2.6x1
0
4 heat sink
2 PTT 2.6x16

10
CDX-CA730X
1 CN3
2 Removal the solders.
3 P 2x3
6 PS 2x4
5 PS 2x4
4 loading motor assy
7 SERVO board
8 connector
optical pick-up block
2-6. DISC IN BOARD
2-7. SERVO BOARD
3 claws
2 DISC IN board
4 guide (disc)
1 PS 2x3

11
CDX-CA730X
1 tension spring (KF1)
2 tension spring (KR1)
8 compression spring (FL)
7 floating block assy
9 compression spring (FL)
5 Fit lever (D) in the
direction of the arrow.
3 damper (T)
4 damper (T)
6 Turn loading ring in the
direction of the arrow.
Fig. 1
1 tension spring (RA3)
2 arm (roller T)
3 retaing ring (roller)
4 bearing (roller)
5 shaft roller assy
retaing ring (roller) arm arm
washer (RA) washer (RA)
bearing (roller) bearing (roller)
2-9. FLOATING BLOCK ASSY
2-8. SHAFT ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)

12
CDX-CA730X
1 P 2x3
4 P 2x3
5 spring (feed), plate
6 shaft (feed) assy
2 sled motor assy
3 optical pick-up block
2-10. OPTICAL PICK-UP BLOCK

13
CDX-CA730X
3-1. IC PIN DESCRIPTION
• IC501 MN101C49KCY2 (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 VREF– — Ground for A/D converter power supply
2 VSM I S-meter voltage detection signal input from tuner unit (TU10)
3 NIL I Connect to ground.
4 KEYIN1 I Key signal input
5 KEYIN0 I Key signal input
6 RC IN0 I Rotary commander key signal input from remote in jack (J561)
7 QUALITY I Noise detection signal input Connect to ground in this set.
8 NIL/MPTH I Connect to ground in this set. Multi path detection signal input
9 DSTSEL/FUNCSEL I Destination set up detection signal input (S553)
10 VREF — A/D converter power supply
11 VDD — Power supply (+5 V) input pin
12 OSCOUT O High speed clock signal output (18.432 MHz)
13 OSCIN I High speed clock signal input (18.432 MHz)
14 VSS — Ground for power supply
15 XIN I Low speed clock signal input (32.768 kHz)
16 XOUT O Low speed clock signal output (32.768 kHz)
17 MMOD I Memory mode select signal input (Input to “Low” (single chip mode).)
(Connect to ground.)
18 LCDSO O LCD serial data signal output to LCD driver (IC901)
19 LCDCE O LCD chip enable signal output to LCD driver (IC901)
20 LCDCKO O LCD serial clock signal output to LCD driver (IC901)
21 CD TSO O CD servo IC serial data signal output
22 CD TSI I CD servo IC serial data signal input
23 CD TCKO O CD servo IC serial clock signal output
24 SYSRST O System reset signal output to bus interface (IC581)
25 BUS ON O Bus on signal output to bus interface (IC581)
26 KEYACK I Key acknowledge detection signal input
27 NIL/DAVN I Connect to ground in this set. RDS data block synchronization detection signal input
28 BU IN I Back up power supply detection signal input
29 SIRCS I Remote signal input from remote control receiver (IC971)
30 CD SELFSW I CD mechanism self load position detection switch signal input from self switch (SW2)
31 CD PACK I CD text pack sync signal input from CD servo (IC1)
32 VDD2 — Power supply (+5 V) pin
33 RESET I microcomputer reset signal input from reset IC (IC551) “L”: reset
34 NOSE SW I Front panel attachment detection signal input from nose detect switch (S552) “L”: ON
35 BEEP O Beep signal output to power amp (IC751)
36 NCO O Not used. (Open)
37 TESTIN I Test mode detection signal input
38 ACCIN I Accessory power supply detection signal input
39 NCO (VCC) O Not used. (Open)
40 TELATT I Telephone ATT detection signal input
41 NCO (VCC) I Connect to power supply.
42 UNISO O Sony-Bus serial data signal output to bus interface (IC581)
43 UNISI I Sony-Bus serial data signal input from bus interface (IC581)
44 UNICKO O Sony-Bus serial clock signal output to bus interface (IC581)
45 I2C SIO I/O I2C bus serial data signal input/output
46 NCO O Not used. (Open)
47 I2C CKO O I2C bus serial clock signal output
48 NCO O Not used. (Open)
SECTION 3
DIAGRAMS
Ver 1.1

14
CDX-CA730X
Pin No. Pin Name I/O Pin Description
49 TUNON O Tuner power supply control signal output to power supply (IC601)
50 PW ON O System power supply control signal output to power supply (IC601)
51 TSTB O CD text parameter strob signal output to servo IC (IC1)
52 RFOK I RF OK signal input from servo IC (IC1)
53 CD RST O Reset signal output to servo IC (IC1)
54 A0 O Command/parameter identification signal output to servo IC (IC1)
“L”: Command, “H”: Parameter
55 STB O Data strob signal output to servo IC (IC1)
56 X EN O Crystal oscillation control signal output Not used in this set.
57 LIMIT I CD Mechanism in-limit switch signal input from limit switch (SW3)
58 PH1 I CD Mechanism PH1 detection signal input Not used in this set.
59 D SW I CD Mechanism down switch signal input from down switch (SW5)
60 INSW/PH2 I CD Mechanism disc-in switch detection signal input from disc-in switch (SW1)
61 NC (PH3) I CD Mechanism PH3 detection signal input Not used in this set.
62 CD LM LO O CD Mechanism loading motor control signal output to loading motor drive (IC2)
63 CD LM EJ O CD Mechanism eject motor control signal output to loading motor drive (IC2)
64 4VPRE/NCO I/O Hi-Volt power selection “L”: with, “H”: without
65 PREOUTMENU/NCO I/O Pre-out (4 V/5.5 V) menu selection “L”: with, “H”: without set up signal input
66 AMPATT O Power ampATT control signal output to power amp (IC751)
67 AMPON O Power amp standby control signal output to power amp (IC751)
68 CDMD ON O CD mechanism deck power supply control signal output
69 ATT O System ATT control signal output
70 VOLATT O Electrical volumeATT control signal output to electrical volume (IC331)
71 – 73 NCO O Not used. (Open)
74 MP3SEL I MP3 control select signal input “L”: MP3 CD changer control correspondence,
“H”: not correspondence
75 SUB SEL I Sub-out function detection signal input “H”: without, “L”: with
76 SW SHIFT O Not used in this set. (Open)
77 COLSEL I Key illumination color selection detection signal input “L”: amber, “H”: green
78 NCO O Not used. (Open)
79 XCD ON O CD on signal output “H”: Play, “L”: Loading or standby
80 – 85 NCO O Not used. (Open)
86 E2P SIO I/O EEPROM serial data signal input/output
87 E2P CKO O EEPROM serial clock signal output
88 NCO O Not used. (Open)
89 FLASH W I Flash microcomputer write detection signal input “L”: Write mode
90 NIL/NS MASK O Connect to ground in this set. Noise mask signal output
91 AD ON O Key power supply control signal output “L”: key active
92 DOORIND O Sub panel power supply control signal output
93 ILLON O Illumination power supply control signal output
94 DOOR SW I Front panel open/close detection signal input “L”: Close, “H”: Open
95 DAVSS — Ground pin
96 RE IN1 I Rotary encoder signal input from rotary encoder (RE901)
97 RE IN0 I Rotary encoder signal input from rotary encoder (RE901)
98 RC IN1 I Rotary commander shift key signal input from remote in jack (J561)
“L”: Shift key on
99 NCO O Not used. (Connect to ground.)
100 DAVDD — Power supply pin (+5 V)

15 15
CDX-CA730X
3-2. BLOCK DIAGRAM — CD SECTION —
84
85
82
83
16
12
D/A
CONV
TRACKING
ERROR
FORCUS
ERROR
9
1
OSC
EFM
DEMOD
SERVO
CTL
RF
EQ
52
56
54
55
DSUB CODE
PROCESS
8
7
6
5
4
3
2
59
30
60
57
68
79
21
22
23
55
54
53
52
I/F
87
86
97
98
LD
DRIVE
Q1
FOCUS
COIL
DRIVE
TRACKING
COIL
DRIVE
SLED
MOTOR
DRIVE
SPINDLE
MOTOR
DRIVE
LOADING
MOTOR
DRIVE
6
5
23
2
15
16
17
18
13
14
11
12
9
10
26
62 63 64 65
63
62
33
CDMD ON
SWITCH
Q352
CD ON
SWITCH
Q353
CD+5V
REG
Q350,D350
CD DRIVE+6V
REG
Q351,D351
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
SW1
(DISC IN)
SW2
(SELF)
SW3
(LIMIT)
SW5
(DOWN)
X1
16.9344MHz
OPTICAL PICK-UP
KSS-720A
I-V
CONV.
CDL
STB
AO
CD_TSO
31 CD_PACK
51 TSTB
CD TSI
CD TCKO
CD_RST
RFOK
D SW
INSW/PH2
CD_SELFSW
LIMIT
CD_LM _LO
CD_LM_ EJ
CDMD ON
XCD ON
R-CH
TUNER
SECTION
A
23 24
M
M
M
1RESET
S551
(RESET)
2
IC551
BU+5.8V
BATT
D352
LOUT
ROUT
PACK
TSTB
TSI
TSCK
SI
RFOK
SO
SCK
STB
AO
XTALEN
RST
RESET
A
C
B
D
E
F
PD
LD
A
C
B
D
E
F
PD
A+5V
LD
APC
FCS-
FCS+
TRK+
TRK-
SL-
SL+
SP-
SP+
LD-
LD+
FOCUS
COIL
TRACKING
COIL
FD
TD
SD
MD
LOAD
EJECT
SYSTEM CONTROL
IC501(1/3)
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
IC1
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC2
FD TD SD MD
• Signal path
:CD
• R-ch is omitted due to
same as L-ch.
A+5V
AU+5V
D+5V
DR+6V
(Page 16)

1616
CDX-CA730X
J10
(ANTENNA) 210
1
ANTFM MPX
CDL
8
AM DET
14
S-METER
12
I2C SDA
13
I2C SCL
17
E2PROM SDA
18
E2PROM SCL
ANTAM
TUNER UNIT
TU10
2
45
47
70
13
14
19
20
17
9
12
43
4
28
SYSTEM CONTROL
IC501 (2/3)
ELECTRONIC VOLUME
IC331
AUX-LCH
OUT FL
35
ACIN RCH
38
ACOUT LCH
36
ACOUT RCH
27
OUT RL
26
OUT FR
25
OUT RR
35
BEEP
ATT
67
69
AMP ON
66
AMP ATT
40
TEL ATT
38
ACC IN
MD LCH
MPX1
R-CH
AM/MPX2
LEVEL
MPIN
SDA
SCL
EXA-ATT
VOL ATT
90 MS MASK
VSM
I2C SIO
I2C CKO
E2P SIO
E2P CKO
AUDIO OUT REAR
CD
SECTION
A
LINE MUTE
CONTROL
Q621,622
MUTE
Q181
R-CH
MUTE
Q171
22 MUTE
4STBY
16 AUX
11
12 5
3
9
7
POWER AMP
IC751
1
-1
-2
-5
-6
-3
-4
9
2
10
CNP781
R-CH
PJ151
FL+
FL-
RL+
RL-
4
12
FR+
FR-
3
11
RR+
RR-
16 +B (BATT)
13 ATT
5AMP R
6
8
19
ANT R
GND
R-CH
BATT
F901
10A
TEL
ATT
Q585
MUTE
Q625
7ACC
15 TEST
49
50
TUN ON
37
TEST IN
ACC
DETECT
Q571
PW ON
9
DSTSEL/
FUNCSEL
BU+5.8V
24
SYSRST
25
BUSON
43
UNISI
44
UNICKO
42
UNISO
28
BU IN
87
86
BATT DET
Q581,D584,585 BATT
17
18
L
R
AUDIO OUT FRONT
R-CH
L
R
BUS AUDIO IN
R-CH
L
R
•Signal path
:FM
:AM
:CD
•R-ch is omitted due to same as L-ch.
CDRR-CH 42 MD RCH
R-CH
BUS INTERFACE
IC581
13 RST
12 BUSON
8DATA OUT
11 CLK IN
9DATA IN
10 B/U-C
6
DATA I/O
4
CLK
2
RST
3
BATT
8
7
5
6
4
2
3
1
BATT
CNJ581
BUS
CONTROL IN
L-CH AMP
IC332
1
BUSON
DELAY BATT
D621
POWER SUPPLY
IC601
2TUN-ON SW
BU+5.8V
COM+8V
TU+5V
TU+8.5V
BU+B(5.8V)
COM8.7V
TU+B(5.1V)
TU+B(8.4V)
BATT
4STB
6
AMP+B
8
ANT+B
11
10
9
5
7
VCC
D613
D612
S553
(FREQUENCY SELECT)
FM200k
AM 10k
FM 50k
AM 9k
3-3. BLOCK DIAGRAM — TUNER SECTION —
(Page 15)

17 17
CDX-CA730X
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
MAIN board
LIMIT board
SUB board
DISC IN board
SUB (CD) board
KEY board SERVO board
tuner uni
t
(TU10)
3-5. CIRCUIT BOARDS LOCATION
LSW902,904,905,907,
911,913,915,916,918,919
S901,903,912,914,917
KEY
ACTIVE
Q551
DOOR IND
SWITCH
Q631
REMOTE
RECEIVE
J561
(REMOTE IN) IC971
X502
32.768kHz
15
16
12
13
518
20
19
4
26
91
98
6
29
SYSTEM CONTROL
IC501 (3/3)
LCD DRIVE
IC901
KEY IN0 DATA
CLK
CE
LCD SO
LCD CKO
LCD CE
ILL ON
SWITCH
Q603
ILL B+
REG
Q601
KEY IN1
KEY ACK
AD ON
RC IN1
RC IN0
SIRCS
92 DOORIND
34 NOSESW
XIN
XOUT
OSC OUT
93
ILL ON
BATT
ILL+5V
OSC IN
X501
18.432MHz
LED931,941
LCD BACK
LIGHT
100
99
98
COM1
COM4
LCD
LCD901
ILL+5V
LED903,914
D701
LSW801(1/2)
D702
D553
()
KEY
ILLUMINATION
()
90
|
87
|
SEG1
SEG84
3
|
86
|
LCD DATA
LCD CLK
LCD CE
ROTARY
ENCODER
RE901
97 REIN0
96 REIN1
Z
S552
(NOSE)
LED801
(CD WINDOW)
LSW801(2/2)
Z
KEY MATRIX
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
2
3
IC1 ts (PACK)
IC1 uj (RFO)
1.5Vp-p
4
Approx. 100mVp-p
IC1 oa (FEO)
0V
5
Approx. 100mVp-p
IC1 od (TEO)
1.8Vp-p
16.9344MHz
IC1 wd (XTAL)
5Vp-p
0V
3.3msec
— Main Board —
1
2
18.432MHz
IC501 qs (OSCOUT)
1.8Vp-p
32.768kHz
IC501 qh (XOUT)
5.2Vp-p

1818
CDX-CA730X
1
A
B
C
D
E
F
G
H
I
J
234567891011121314
CN2
SW5
3-6. PRINTED WIRING BOARDS —CD MECHANISM SECTION —•Refer to page 17 for Circuit Boards Location.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
• % : indicates tolerance.
•f: internal component.
•C: panel designation.
•A: B+ Line.
• Powervoltageis dc 14.4V and fed withregulateddcpower
supply from ACC and BATTcords.
• Voltagesare taken with aVOM(Inputimpedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
f: AM
J: CD
for printed wiring boards:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•x: parts mounted on the conductor side.
•a: Through hole.
•: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Partson thepatternfacesideseenfromthe
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.

19 19
CDX-CA730X
1
A
B
C
D
E
F
G
H
I
J
234567891011121314
TP8
C4
C26
TP1
TP2
TP3
TP4
TP5
TP87
TP86
TP57
TP77
TP11
TP79
TP83
TP70
TP10
TP9
TP27
TP12
TP78
TP31
TP81
TP84
TP54
TP25
TP24
TP37
TP39
TP36
TP38
TP40
TP45
TP22
TP88
TP41
TP46
TP30 TP21
TP17
TP20
TP42
C44
TP19 TP28
TP90
C41
TP29
TP15
TP33
TP73
TP14
TP18
TP48
TP71
TP51
TP49
TP52
TP55
TP75
TP53
TP56
TP43
TP58
TP61
TP74
TP60
TP68
TP80
TP7
TP62
TP91
TP63
TP66
TP64
TP69
TP72
TP50
TP26
TP32
TP59
TP76
BP4
BP3
BP1
BP2
R8
R9
R5
R7
R12
R14
R15
R10
R17
R18
R19
R20
R22
TP92
FB5
C3
C5
C6
C8
C9
C10
C11
C13
C14
C16
C18
C19
C24
C25
C29
C34
C36
C38
C35
C22
C30
TP6
C23
C1
C27
R21
TP47
C15
C20
TP35
TP23
R6
C17
TP82
TP44
Q1
R26
TP34
TP89
R3
TP16
TP85
R31
CN1
IC1
IC2
C43
R30
R29
CN3
X1
C70
C71
(Page 25)
Ref. No. Location
IC1 E-7
IC2 H-7
Q1 C-6
•Semiconductor
Location

2020
CDX-CA730X
•Refer to page 17 for Waveforms.
3-7. SCHEMATIC DIAGRAM —CD MECHANISM SECTION —•Refer to page 30 for IC Block Diagrams.
(Page 23)
Note:
• Voltage is dc with respect to
ground under no-signal conditions.
no mark : CD PLAY
IC B/D
IC B/D
TP77
TP78
R29
R30
C43
TP79
TP80
TP81
TP82
TP83
TP84
CN2
CN3
SW3
M902
M901
TP1
TP5
SW2
SW1
TP4
TP2
TP3
M903
TP87
TP86
TP9 TP8
R3 R26
C4
TP10
C13
R5
C11
C10
C8
TP7
TP92
R6
TP15
TP14
TP17
TP20
TP16
TP19
TP21
TP18
BP4
BP3
R7
C17
TP11
TP12 C9
C14
TP89
C19
C20 C23
R9
R8
TP22
TP23
TP24
TP25
TP88
C26
TP31
BP1
BP2
TP33
TP32
R14
R15
TP30
R12
R10
TP91
TP90
TP29
TP28
TP26
TP27
R21
R22
R31
C44
TP34
TP35
TP36
TP46
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
CN1
R18
R19
R20
R17
TP66
TP62
TP47
TP63
TP48
TP49
TP64
TP50
TP51
TP52
TP68
TP53
TP69
TP54
TP70
TP55
TP71
TP56
TP72
TP57
TP73
TP58
TP74
TP59
TP75
TP60
TP76
TP61
IC1
X1
C1 C5 C3
C6
TP93
TP94
TP95
TP96
TP97
TP98
TP85
C15
C16C70
C24
C35
C38
C36
FB5
C25
C34
C71
C29
C27
C41
C22
C30
C18
Q1
SW5
IC2
CN1