Sony CDX-L300 Installation/Connection User manual

1
Model Name Using Similar Mechanism CDX-L250/L430X
NEW
CD Drive Mechanism Type MG-393X-121//K
MG-393XA-121//K
Optical Pick-up Name KSS-720A
SERVICE MANUAL
US Model
Canadian Model
CDX-L300
E Model
CDX-L460X
CDX-L300/L460X
FM/AM COMPACT DISC PLAYER
Photo: CDX-L460X
• The CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS (US Model)
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.
CD player section
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Laser Diode Properties (CDX-L300)
Material GaAlAs
Wavelength 780 nm
Emission Duration Continuous
Laser output power Less than 44.6 µW*
*This output is the value measured at a distance
of 200 mm from the objective lens surface on the
Optical Pick-up Block.
Tuner section
FM
Tuning range CDX-L300:
87.5 – 107.9 MHz
CDX-L460X:
FM tuning interval:
50 kHz/200 kHz
switchable
87.5 – 108 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz
Usable sensitivity 11 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 65 dB (stereo),
68 dB (mono)
SPECIFICATIONS
Harmonic distortion at 1 kHz
0.7% (stereo),
0.5% (mono)
Separation 33 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM
Tuning range CDX-L300:
530 – 1,710 kHz
CDX-L460X:
AM tuning interval:
9 kHz/10 kHz
switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 45 W ×4 (at 4 ohms)
– Continued on next page –
Ver 1.0 2001. 11
9-873-402-01
2001K0400-1
© 2001. 11
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation

21 21
CDX-L300/L460X
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
62
1
45
2
63
50
51
54
55
56
61
60
58
57
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
5
4
36
POWER
CONTROL
Q905,906
POWER
CONTROL
Q921
REG
Q907,D908
REG
Q910,D910
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
SW3
(DISC IN)
SW2
(SELF)
SW4
(LIMIT)
SW1
(DOWN)
X1
16.9344MHz
OPTICAL PICK-UP
KSS-720A
I-V
CONV.
CDL
STB
A0
X_SO
X_SI
X_SCK
X_RST
RFOK
XEN
D_SW
IN_SW
SELF_SW
L_SW
LM _LO
LM_ EJ
CDM ON
XCD_ON
R-CH
MAIN
SECTION
A
23 24
M
M
M
1RESET
S581
(RESET)
2
IC902
U_COM+5V
BATT
D909
LOUT
ROUT
PACK
TSTB
TSI
TSCK
SI
RFOK
SO
SCK
STB
AO
XTALEN
RST
RESET
A
C
B
D
E
F
PD
LD
B
D
A
C
E
F
PD
A5V
LD
APC
FCS-
FCS+
TRK+
TRK-
SL-
SL+
SP+
SP-
LD-
LD+
FOCUS
COIL
TRACKING
COIL
FD
TD
SD
MD
LOAD
EJECT
SYSTEM CONTROL
IC801(1/3)
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
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
IC1(MG-393X-121//K)
IC1(MG-393XA-121//K)
IC2(MG-393X-121//K)
IC2(MG-393XA-121//K)
3-2. BLOCK DIAGRAM — CD SECTION —
(Page 22)

2222
CDX-L300/L460X
3-3. BLOCK DIAGRAM — TUNER SECTION —
(Page 21)
CNJ601
(ANTENNA) 2 16
1
FM_ANT L-CH
17
R-CH
CDL
24
DET_OUT
11
FM/AM_OSC
14
AM_VT
6
FM_VT
20
IF_COUNT
19
OSC-IN
21
12
9
S_METER
TU+B
22
SD/ST_IND
FM_VCC
AM_VCC
AM_ANT
TUNER UNIT
TU601
11
12
13
2
1
36
17
21
18
14
5
SYSTEM CONTROL
IC801 (2/3)
PLL
IC601
ELECTRONIC VOLUME
IC401
LF OUT
4
33
34
LR OUT
RF OUT R-CH
RR OUT
8
BEEP
ATT
53
7
P.ON
6
A_ATT
59
ACC IN
L5
L1
L2
R2
CE
DI
CL
VOL_CLK
VOL_DO
VOL_CE
17
22
21
PLL_DI
PLL_DO
PLL_CLK
23 PLL_CE
LCL
DST_SEL
S_METER
FM 200k
AM 10k
FM 50k
AM 9k
FREQUENCY
SELECT
FM POWER
CONTROL
Q605,606 SW801
L300L460X
SD_IND
AUDIO OUT REAR
CD
SECTION
A
MUTE
CONT
Q401,402
Q102
MUTE
R-CH
DELAY BATT
BATT
Q909
BATT
D402
Q101
MUTE
22 MUTE
4STBY
16 AUX-IN
11
12 5
3
9
7
POWER AMP
IC101
1
9
2
10
CNP501
R-CH
PJ401
FL+
FL–
RL+
RL–
4
12
FR+
FR–
3
11
RR+
RR–
16 +B (BATT)
5AMP REM
6
8
17
ANT REM
GND
R-CH
F901
10A
7ACC
15 TEST
33
TEST
AMP_ON
ACC
CHECK
Q902
32
13
•
25 FM/AM_VCC
26
28
()
19
18
L
R
•Signal path
:FM
:AM
:CD
•R-ch is omitted due to
same as L-ch.
AMP POWER
CONTROL
Q911,917
BACK-UP CHECK
Q903,904,D906,907
TUNER+8V REG
Q912,913,D913
COM+8V REG
Q918,919,929,D923
U_COM+5 V REG
Q920,D930,D999
U_COM+5V
COM+8V
TU+B
R-CH
8
FM_VCO
15
AM_VCO
16
FM_CP
18
VT
19
AM_CP
20
OSC
2
SEEK XO
XI
10
IFC
13
MONO
11 24
1
CE 3
CK 5
D_IN 4
D_OUT 6
X601
10.25MHz
3
AM_DX/LCL
52
TU_ON
46
BU_IN
15
FM_ON
14
AM_ON
49
AM POWER
CONTROL
Q603,604

23
CDX-L300/L460X
3-4. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
S501-511,
S512-521
KEY
ACTIVE
Q916
X802
32.768kHz
37
38
40
41
29 18
20
1930
43
47
SYSTEM CONTROL
IC801 (3/3)
LCD DRIVE
IC551
KEY 0 DATA
CLK
CE
LCD DO
LCD CLK
LCD CE
ILL POWER
CONTROLLER
Q914
INITIAL
RESET
D552
SWITCH
Q915
ILL + B
KEY 1
KEY 1
KEY 0
KEY ACK
AD ON
XT2
XT1
X2
48
ILL ON
BATT
X1
X801
8.38MHz LED501-504
D561-581
LCD BACK
LIGHT
62
61
60
COM1
COM2
LCD
LCD501
D914
()
KEY
ILLUMINATION
()
64
•
63
1
|
23
•
25
|
53
•
SEG1
SEG52
|
DATA
CLK
CE
ILL+B
57
INH

24
CDX-L300/L460X
3-5. CIRCUIT BOARDS LOCATION
MAIN board
tuner unit
(TU601)
DISPLAY board
SERVO board
IN SELF SW board SPEAKER board
SL SW board
• Waveforms
— Servo Board —
(MG-393X-121//K)
(MODE: CD PLAY)
1
2
3
IC1 ts (PACK)
IC1 uj (RFO)
1.2Vp-p
4
Approx. 1Vp-p
IC1 oa (FEO)
0V
5
Approx. 400mVp-p
IC1 od (TEO)
4.4Vp-p
16.9344MHz
IC1 wd (XTAL)
3Vp-p
0V
22.7µsec
• Waveforms
— Servo Board —
(MG-393XA-121//K)
(MODE: CD PLAY)
1
2
3
IC1 ts (PACK)
IC1 uj (RFO)
1.2Vp-p
4
Approx. 1Vp-p
IC1 oa (FEO)
0V
5
Approx. 400mVp-p
IC1 od (TEO)
4.4Vp-p
16.9344MHz
IC1 wd (XTAL)
3Vp-p
0V
22.7µsec
— Main Board —
1
2
32.768kHz
IC801 ej (XT2)
3.8Vp-p
5Vp-p
8.38MHz
IC801 r; (X2)

25 25
CDX-L300/L460X
3-6. SCHEMATIC DIAGRAM • Refer to page 24 for Waveforms.
— CD MECHANISM SECTION (MG-393X-121//K) — • Refer to page 36 for IC Block Diagrams.
IC B/D
IC B/D
(Page 33)
Note:
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY

3030
CDX-L300/L460X
IC B/D
IC B/D
TP77
TP78
R29
R30
C43
TP79
TP80
TP81
TP82
TP83
TP84
CN2
CN3
TP85
M902
M901
SW2 TP4
TP2
TP3
M903
TP87
TP86
TP9 TP8
R3 R26
C4
TP10
C13
R5
C11
C10
C8
TP7
TP92
R6
TP17
TP20
TP16
TP19
R25
TP21
TP18
R24
R7
TP6
C17
FB1
TP11
TP12 C9
C14
TP89
C19
C20 C23
R9
R8
TP22
TP23
TP24
TP25
TP88
FB4
C26
TP32
R14
R15
TP30
R12
R10
TP91 C37
TP90
TP29
TP28
TP26
TP27
R21
R22
TP34
TP35
TP36
TP46
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
C35
FB2
CN1
R18
R19
R20
R17
TP66
FB7
FB6
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
X1
SW3
SW4
CN13
Q1
C18
IC2
FB3
IC1
SW1
TP1
TP5
C44
C40
C1 C5 C3 C6
C15
C16
C24
C38
C36
C25
C29
C34
C45
C27
C41
C22
C21
C30
(Page 33)
Note:
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : CD PLAY
3-9. SCHEMATIC DIAGRAM •Refer to page 24 for Waveforms.
—CD MECHANISM SECTION (MG-393XA-121//K) —•Refer to page 36 for IC Block Diagrams.

3232
CDX-L300/L460X
IC B/D
IC B/D
C604 C605
C608
C627
R605
R601
R603
R602
C606
C603
C609
C610
L603
C612
C613
R607
C615
C619
R609
C621
R616
R617
R618
X601
C623
C622
C611
R606
C204 R210
R208
R110
C104
R108
R107
R109
C103
C105
C205
R105
R206
R106
C432
R612
R613
R619 C631
C626
C624
L604
C118
C218
C217
C216
C215
C213
C211
R215
R213
C208
C435
C101
C102
C202
C201
R401
C426
R407
C110
R113
C116
C117
C111
C113
C119
R716 R714
R906
D903
D904
C902
R901
D901
L901
R620
R622
R628
C108
R604
CNJ601
R205
CNP501
C633
PJ401
R209
R207
JR101
C407
Q603
C841
C842
Q605
C625
R610
C618
C617 R608
C614
D401
C214
C114
C706
C707
C901
D444
R444
R410
D402
Q101
Q102
Q201
Q202
C203
R404
C115
R115
L601
C635
JW13
C620
R615
R408
IC101
D922
D919
D918
D917
D916
D915
D921
D920
C401
C210
L605
C666
D601
CP601
JR602
C848
R614
D604
R611
Q401
Q402
D445
D446
IC401
C219
IC601
Q604
Q606
L669
TU601
JR610
C650 C651R621 R623
D666
3-11. SCHEMATIC DIAGRAM —MAIN SECTION (1/2) —•Refer to page 36 for IC Block Diagrams.-
(Page 33)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : AM
< > : CD PLAY

33 33
CDX-L300/L460X
( M G - 3 9 3 X ) ( M G - 3 9 3 X A )
R908
R907
C904
TH901
R933
Q919
R934
R932
D923
C919
R930
D909
R931
Q920
D930
Q910
Q913
R912
JR929
R913
C905
C907
D910
D908
R917
D913
R920
C916
R919
R918
Q915
R928
R925
R926
R927
R929
R924
R911
R910
D906
L703
L702
R921
R806
R807R808
X802C802
C801
CNP701
R802
R815
R814
R813
R812
R811
R810
R824
R922
R923
C809
SW801
CNP802
R817
R818
R822
R819
JR1
R711
R709
R710
R707
R708
R706
R705
R704
R840
C810
R841
R842
C843
C845
D914
Q904
D907
D999
C846
IC902
C915
C844
R909
R809
C914
Q907
C849
C806
X801
C804
C803
JR901
IC801
R843
JR903
C909
L701
C847
Q916
D810 Q909
Q912
Q905
Q906
Q921
Q914
Q929
Q918
Q911
Q917
Q902
Q903
C701
C702
C703
C704
C812
3-12. SCHEMATIC DIAGRAM —MAIN SECTION (2/2) —•Refer to page 24 for Waveforms.
Note:
• Voltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
< > : CD PLAY
(Page
30)
(Page 32)
(Page 35)
(Page 25)

35 35
CDX-L300/L460X
D554
JR501
R586
JR505
LED501 LED503
D561 D564 D568 D573 D575
D565
D562
D563 D570 D567
R565 R566 R578
D566
R567 R568
R579
R580
D581
R569
R570 R575
R573 R574 R582
D578
D571
D572
D552
R552 R553
C555 C553
D551 C552
C551 R551
R576 R583
R571 R581R572
D577
D576
D579
D580
D569 D574
CNP553
CNP551
R587
R588 R559 R560 R561 R562
S512 S513 S514 S515
S501 S511 S502 S503 S504 S505 S506 S507 S508 S509 S510
S516 S517 S518 S519 S520 S521
S581
JR503
D553
LED502 LED504
R577R563 R564
R501 R502 R503 R504 R505 R506 R507 R508 R509 R510
R511 R512 R513 R514 R515 R516 R517 R518 R519
3-14. SCHEMATIC DIAGRAM —DISPLAY SECTION —
(Page 33)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM