Sony CDX-L300 / CDX-L460X Service Manual ▷ View online
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
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
1
RESET
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)
IC1(MG-393XA-121//K)
IC2(MG-393X-121//K)
IC2(MG-393XA-121//K)
IC2(MG-393XA-121//K)
3-2. BLOCK DIAGRAM — CD SECTION —
(Page 22)
22
22
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
L300
L460X
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
4 STBY
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)
5 AMP REM
6
8
17
ANT REM
GND
R-CH
F901
10A
7 ACC
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
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
19
30
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)
(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)
Click on the first or last page to see other CDX-L300 / CDX-L460X service manuals if exist.