Sony CMT-LX40I / HCD-LX40I Service Manual ▷ View online
HCD-LX40i
HCD-LX40i
13
13
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM - CD, TUNER Section -
OPTICAL PICK-UP BLOCK
(KSM-215CFP)
B
C
D
D
E
A
F
SP+
SP-
LD
PD
VC
AUTOMATIC
POWER
CONTROL
Q301
COIL/MOTOR DRIVER
IC401
CD-MP3 PROCESSOR
IC101
SP+
2
SP-
1
SPIN 3
SL+
SL-
SL+
12
SL-
11
SLIN 9
T+
T-
T+
18
T-
17
TIN 20
F+
F-
F+
26
F-
27
FIN 24
M-MUTE 7
97 B
94 C
96 D
94 C
96 D
100 E
95 A
98 F
91 LDO
MDI
84 VRO
13 DMO
92
12 FMO
10 TRO
9 FOO
XO
XI
X102
16.934MHz
S201
(LIMIT)
24
23
IN_SW
CD D +3.3V
20
LOUT
CD-L
30
ROUT
R-CH
27
BUS0 38
BUS1 39
BUS1 39
BUS0
17
BUS1
18
BUS2 40
BUS3 41
BUS3 41
BUS2
19
BUS3
20
O-CD BUCK
25
O-CD CCE
26
XRST 37
O-CD RESET
27
O-CD-DR MUTE
23
I-CD REQ
24
SBSY 54
I-RDS DS 6
I-RDS SC 45
I-RDS SC 45
I-CD SBSY
43
B
A
C
AM/FM-DET, OSC, MIX, PLL, IF AMP
IC801
36 FMRF-O
8 FM-IF
22 MPX-IN
1 AM-IN
31 AM-OSC
7
I-TU-DO
56
O-TU-CLK
55
O-TU-CE
57
O-TU-DI
46
I-TU ANSD
X801
75kHz
20
19
XIN
XOUT
16
DI
17
CL
15
CE
18
DO
25
AGC
3
J802
ANTENNA
FM/AM
1
BAND-PASS
FILTER
CF805
FM MIX
AMP
Q803
AM TRACKING
L851
AM RF
D851
7 AM-IF
L803
AM IF
34 FMRF-O
FM TRACKING
L804
32 FM-OSC
FM VT VOLTAGE
L805
FM OSC
L804
FM RF
+9V
11 FM-DET
FM DETECTOR
L806
FM DET
3
FM-MIX
23
FM-OUT
12
L-OUT
13
R-OUT
R-CH
29
BO1
BO1
30
BO2
BO2
TUNER-L
5
AM-MIX
24
AM-OUT
CF803
CF801
CF802
SIGNAL PATH
: CD PLAY
R-FK LV RPLWWHG GXH WR VDPH DV L-FK.
: TUNER (FM/AM)
RDS DECODER
IC861
MPX
4
DO
2
CL
16
O-CD-LOAD OUT 8
O-CD-LOAD IN 10
LOAD-OUT
LOAD-IN
LOAD-IN
SW OUT SIDE
SW CHEC
SW CHEC
I-SW CD CHECK/OUT 40
14
13
X861
4.332MHz
XOUT
XIN
DET
AMP
Q861
DRIVER BOARD
SYSTEM CONTROLLER
IC502 (1/3)
42
BUCK
43
XCCE
48
REQ
(Page 14)
(Page 14)
(Page 15)
HCD-LX40i
HCD-LX40i
14
14
5-2. BLOCK DIAGRAM - AUDIO Section -
R-CH
R-CH
AUDIO IN
J921
INPUT SELECTOR
IC882
26
SDA
25
SCL
8
12
AU-L
VOL-L
6 CD-L
IP-L
O-FUNC SD
12
O-FUNC SC
11
O-AMP-ON
3
9
SEL-L
19
OUT-L
21
SR
20
SB-L
INPUT SELECTOR,
ELECTRICAL VOLUME
IC201
: TUNER (FM/AM)
: CD PLAY
: iPod
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUDIO IN
B
CD-L
D
DC DETECT
4 TU-L
A
TUNER-L
BO1
Q882
CN951
(iPod Dock)
27
28
28
LINE AMP
IC203
POWER
AMP
IC301
R-CH
18
19
30
19
30
LINE-OUT-L
LINE-OUT-R
RXD
TXD
DGND
I-IPOD TXD
O-IPOD RXD
I-IPOD DETECT
2
48 33 47
: DAB
DAB TUNER
MODULE
S1_DIN
S1_DOUT
31 O-USB RXD/DAB DI
29 I-USB TXD/DAB DO
1
10
Y0
A
5 Y1
AUDR
AUDL
LOW-PASS
FILTER
IC751
3
Y
SYSTEM CONTROLLER
IC502 (2/3)
J931
R-CH
PHONES
SPEAKER
IMPEDANCE
USE 4
:
ANTENNA
DAB 75
:
+
–
–
+
R
L
J351
(Page 13)
(Page 13)
(Page 15)
HCD-LX40i
HCD-LX40i
15
15
5-3. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -
SYSTEM CONTROLLER
IC502 (3/3)
RSTX 54
+5V
REGULATOR
IC401
VBUS +5V
+4V
REGULATOR
IC451
VOLTAGE
DETECTOR
IC452
BU +3.3V
+9V
REGULATOR
IC202
AUDIO +9V
VSTBY
REGULATOR
Q191
RDS DECODER B+
REGULATOR
Q862
TUNER +5V
REGULATOR
Q802
TUNER +3V
REGULATOR
Q801
D121
D192
D451
T001
POWER TRANSFORMER
MOTOR DRIVER B+
V +6.5V
(AC IN)
F002
RECT
D101 -104
AC DETECT
Q162, 164, 165
RECT
Q119 - 126,
Q128, 129
RESET
SWITCH
Q654
X593
6MHz
X1
X0
92
93
X513
32.768kHz
X1A
X0A
14
13
I-RMC
9
REMOTE CONTROL
RECEIVER
IC453
D453
O-LED-STBY
22
LCD451
LIQUID
CRYSTAL
DISPLAY
SW471 - 476, 481,
SW491 - 497, 938, 941, 942
(FRONT PANEL KEYS)
I-KEY_1, I-KEY_2,
I-KEY WAKE UP
I-KEY WAKE UP
37, 38, 41
COM0 - COM3
59 - 62
SEG0 - SEG31
63, 64, 67 - 89, 94 - 100
STANDBY
LED DRIVE
Q431
D454
O-LED
5
(LCD BACK LIGHT)
21
O-IPOD POWER
+3.3V
REGULATOR
IC421
CD A +3.3V
4
O-CD/USM 3.3V ON
+3.3V
REGULATOR
IC752
DAB +3.3V
28
O-USB SEL/DAB 3.3VSEL
+1.2V
REGULATOR
IC753
DAB +1.2V
1
O-USBRESET/DAB1.2V
+3.3V
REGULATOR
IC422
CD D +3.3V
+1.5V
REGULATOR
IC201
CD +1.5V
I-HOLD 42
B+ SWITCH
Q171
C
BO2
D
DC DETECT
MAIN POWER
ON/OFF CONTROL
Q175
OVER CURRENT
DETECT
Q172 - 174
2
O-POWER
I-P-MONI 36
DC DETECT
Q161
(Page 14)
(Page 13)
HCD-LX40i
HCD-LX40i
16
16
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
•
C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
•
A : B+ Line.
•
H : Adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD Board –
no mark : CD PLAY
– Other Section –
no mark : TUNER (FM/AM)
( ) : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
no mark : CD PLAY
– Other Section –
no mark : TUNER (FM/AM)
( ) : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
TUNER
(FM/AM)
J
: CD PLAY
i : iPod
f :
AUDIO
IN
g : DAB
For Printed Wiring Boards.
Note:
•
•
X : Parts extracted from the component side.
•
Y : Parts extracted from the conductor side.
•
W : Indicates side identifi ed with part number.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note: The components identifi ed by mark
0 or dotted
line with mark
0 are critical for safety.
Replace only with part number specifi ed.
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Circuit Board Location
PANEL board
MAIN board
DRIVER board
CD board
PT-AC board
KEY-EJECT board
KEY-VOL board
AU-JACK board
MODULE (DAB TUNER)
DAB board
IPJ board
HP-JACK board
29
30
1
2
1
2
10
11
C701
C702
C703
C704
CNS751
CNS752
C753
JW701
JW702
JW703
JW704
C758
JW705
JW706
JW707
C761
IC751
IC752
IC753
R701
R702
R703
R704
R705
L752
R706
R707
R708
R709
R710
R711
R722
C711
C712
C713
C714
R751
R752
R753
R754
R756
R758
R761
R763
C751
C752
C754
C755
C756
C757
C759
C760
C764
C765
JR701
JR702
DAB
TUNER
MODULE
ANTENNA
DAB 75
:
H
MAIN
BOARD
CNS881
1
5
8
4
1
3
1
5
4
5
5
1-878-861-
21
(21)
DAB BOARD
A
B
C
1
2
3
5-4. PRINTED WIRING BOARD - DAB Board -
•
: Uses unleaded solder.
(Page 20)
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