Sony CMT-LX40I / HCD-LX40I Service Manual ▷ View online
HCD-LX40i
HCD-LX40i
21
21
5-9. SCHEMATIC DIAGRAM - MAIN Board (1/3) -
• See page 28 for Waveforms. • See page 28 for IC Block Diagrams.
MAIN
BOARD
(2/3)
1
BOARD
(2/3)
2
MAIN
BOARD
(3/3)
MAIN
3
IC B/D
21
AM
TRACKING
L851
FM
TRACKING
L804
FM VT
VOLTAGE
L805
FM
DETECTOR
L806
0.9
4.8
4.8
4.8
4.9
5.6
5.7
1.8
3
0.5
0
0
1.7
2.2
3
1.5
1.2
2.2
2.2
2.4
4.9
4.9
2.2
2.2
3.9
3.8
4.9
2.3
2.3
0
0
0
3.1
0.8
0
3.5
4.9
5.6
7.4
3
3.8
9.2
0.1
C801
0.1
C804
0.1
C809
0.1
C838
0.1
C839
0.1
C851
0.1
C853
1
C812
1
C816
1
C817
1
C825
1
C832
1
C833
1
C846
0.01
C803
1000p
C806
1000p
C819
1000p
C820
2200p
C807
0.1
C814
100p
C815
100p
C826
100p
C827
100p
C828
100p
C855
0.047
C821
470p
C822
18p
C823
18p
C824
0.47
C831
0.47
C840
0.22
C835
0.22
C836
4p
C854
5p
C856
100p
C870
100p
C871
100p
C875
220p
C874
CF
G
I
O
CF801
CF803
BPF
G
I
O
CF805
SV230-TB-E
D802
SV230-TB-E
D803
MA2J1110GLS0
D805
UDZW-TE17-5.6B
D807
MC2837
D812
SVC347A-TL-E
D851
31
32
33
34
35
36
1
2
3
4
5
6
30
29
28
27
26
8
7
9
10
11
21
22
23
24
25
12
13
14
15
20
19
16
17
18
LV23003VA
IC801
AM-IN
REG
FM-MIX
GND1
AM-MIX
VCC1
AM-IF
FM-IF
P-DET
P-COMP
FM-DET
L-OUT
R-OUT
VSS
CE
DI
CL
DO
XIN
XOUT
VDD
MPX-IN
FM-OUT
AM-OUT
AGC
PD
LP-IN
LP-OUT
BO1
BO2
AM-OSC
FM-OSC
VCC2
FMRF-O
GND2
FMRF-O
L804
FM RF
L805
1
6
2
3
4
5
220uH
AM RF
L851
1
3
4
6
2
L806
FM DET
TP
(TUNER OUT R-ch)
2SC3052F-T1-LF
REGULATOR
REGULATOR
Q801
2SC3052F-T1-LF
Q802
Q803
2SC3053TP-1C
FM MIX AMP
120uH
L852
10
R802
10
R803
100k
R805
100k
R807
100k
R829
100k
R853
0
R806
10k
R808
10k
R816
10k
R817
10k
R851
1k
R809
18k
R837
1k
R848
4.7k
R811
(VT)
JW821
4.7k
R815
10k
R813
47k
R818
47k
R819
47k
R842
2.2k
R820
2.2k
R822
2.2k
R846
2.2k
R824
2.2k
R850
220
R821
220
R831
220
R839
22
R845
22
R847
470
R825
100
R823
100
R841
10k
R836
22k
R840
22k
R849
22k
R863
10
R844
75kHz
X801
10k
R866
G3
G4
VT001
1
C810
1
C811
100
R826
G6
G5
G1
G2
0.01
C829
0.01
C830
18k
R838
C847
C848
2200p
2200p
R860
1k
R859
1k
6.3V
22
C818
JW801
1
C802
6
2
1
3
4
L803
AM IF
1
2
3
3P
J802
AM-LOOP ANT
AM-LOOP ANT
FM-WIRE ANT
0.01
C805
22
R828
CF
G
I
O
CF802
AM/FM-DET,
OSC, MIX, PLL,
IF AMP
IC801
(1/3)
MAIN BOARD
3
1
13
14
5
6
7
8
9
10
11
12
21
ANTENNA
FM/AM
FM OSC
AM OSC
JW828
(GND)
TP
(TUNER OUT L-ch)
J
4
B
6
9
11
D
H
10
3
5
C
F
1
E
8
G
A
2
I
7
MA2J1110GLS0
D808
R861
10k
15
10k
R855
(Page 22)
(Page 22)
(Page 23)
HCD-LX40i
HCD-LX40i
22
22
5-10. SCHEMATIC DIAGRAM - MAIN Board (2/3) -
• See page 28 for Waveforms. • See page 28 for IC Block Diagrams.
(1/3)
MAIN
BOARD
1
MAIN
2
(1/3)
BOARD
(3/3)
BOARD
MAIN
5
MAIN
4
(3/3)
BOARD
B
BOARD
PANEL
CNS404
F
BOARD
AU-JACK
CNA901
IC B/D
22
IC B/D
BOARD
CNS751
DAB
H
IC B/D
20.1
9.2
4.6
4.6
4.6
9.2
4.5
4.5
4.5
4.5
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.5
3.1
3.1
9.2
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
2.4
2.3
4.7
2.4
2.4
4.7
0
4.7
2.4
7.5
4.7
4.2
4.5
9
4.5
4.5
4.5
4.5
4.5
8.9
0
8.9
0.22
C201
0.22
C202
3900p
C203
3900p
C204
0.1
C205
0.1
C206
0.1
C208
0.01
C209
0.01
C210
0.01
C211
0.01
C212
50V
1
C223
C224
1 50V
50V
1
C225
50V
1
C226
50V
1
C245
50V
1
C246
50V
1
C247
50V
1
C248
0.1
C256
0.1
C258
1
C255
10V
220
C243
28
27
26
25
24
23
22
7
6
5
4
3
2
1
21
20
16
17
18
19
13
12
11
10
8
9
15
14
BD3499FV-E2
IC201
IP-R
IP-L
TU-R
TU-L
CD-R
CD-L
AU-R
AU-L
SEL-L
SEL-R
VOL-R
VOL-L
TC-L
TC-R
BB-L
BA-L
BA-R
BB-R
OUT-L
SB-L
SR
SB-R
OUT-R
VCC
SCL
SDA
GND
VCC/2
1
2
3
3P
CNS251
AUDIO-IN_L
AUDIO-IN_GND
AUDIOIN_R
I
O
G
KIA7809API-U/PF
IC202
8
7
6
5
4
3
2
1
IC203
NJM4558M-TE2
2.2k
R201
2.2k
R202
2.2k
R203
2.2k
R204
R205
22k
R207
22k
R208
22k
R209
22k
R210
22k
R211
22k
R212
22k
4.7k
R213
R214
4.7k
R231
2.2k
2.2k
R232
2.2k
R233
2.2k
R234
470
R261
470
R262
R884 47k
0.1
C207
0.1
C257
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
V6.5V
VSTBY
M-GND
O-TU_DI
O-TU_CK
O-TU_CE
I-TU_ANSD
I-P-MONI
O-FUNC-SD
O-FUNC-SC
I-TU_DO
O-AMP-ON
O-POWER
D-GND
CD-RCH
A-GND
CD-LCH
iPod-RCH -
iPod-RCH +
iPod-LCH -
iPod-LCH +
22
23
R206
22k
10V
220
C244
R883 47k
0.1
C253
IC201
INPUT SELECTOR,
ELECTRICAL VOLUME
LINE AMP
IC203
+9V REGULATOR
REGULATOR
IC202
3
1
13
14
14
15
8
6
11
5
12
10
9
7
(2/3)
MAIN BOARD
40
41
42
43
44
45
32
31
33
35
36
1
3
2
VCC
VEE
4
B
16
6
9
11
D
15
H
I
J
K
L
10
17
18
3
5
12
C
F
1
E
8
G
14
A
2
13
7
I-RDS_SC
I-RDS_SD
IC861
RDS DECODER
(AEP)
1
C861
1
C862
C863
1
C864
470p
470p
C866
C868
C869
47p
68p
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PT2579SN
IC861
RDY
DO
REF
FIN
VDD
VSS
LFO
CIN
MODE
TEST
VSS
VDD
XIN
XOUT
RST
CL
2SC3052F-T1-LF
Q861
2SC3052F-T1-LF
Q862
R864
10k
R867
10k
R869
10k
R870
470k
470k
R871
220k
R872
220
R873
2.2k
47k
R874
47k
R875
4.332MHz
X861
470p
C867
R856
22k
22k
R857
100
R865
DET AMP
50V
1
1
C881
50V
1
1
C882
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
MC14052BDTR2
IC882
Y0
Y2
Y
Y3
Y1
INH
VEE
GND
B
A
X3
X0
X
X1
X2
VCC
220
R885
100k
R881
100k
R882
47k
R894
RT1N441C-TP-1
Q882
1
2
3
4
5
6
7
8
9
10
11
11P
CNS881
DAB_LPF_VCC
AGND
L
AGND
R
DAB6.5V
DGND
DAB3.3V_ON
DAB1.2V_ON
DAB_DO
DAB_DI
1
C896
24
25
26
27
O-DAB_DI
O-DAB_DO
O-DAB3.3V/SEL
O-DAB1.2V
CNS214
27P
R887 100k
INPUT SELECTOR
IC882
INVERTER
(Page 21)
(Page 21)
(Page 23)
(Page 17)
(Page 25)
(Page 27)
(Page 23)
HCD-LX40i
HCD-LX40i
23
23
5-11. SCHEMATIC DIAGRAM - MAIN Board (3/3) -
• See page 28 for IC Block Diagrams.
3
BOARD
(1/3)
MAIN
4
MAIN
(2/3)
BOARD
BOARD
(2/3)
5
MAIN
HP-JACK
G
CNA921
BOARD
PT-AC
CNS002
J
BOARD
IC B/D
10.5
10.5
20.1
13.2
1.1
1.6
1.6
10.3
21.1
20.1
20.1
20.1
20.1
23
21.1
2.2
2.8
3.1
0
3
20.1
0
20.3
0
3
10.8
4
4.5
4
0
3.5
0
1.5
0
1.5
8.2
0
12
12.5
8.2
11.4
6.8
11.4
6.8
10.8
10.8
11.4
6.8
11.4
6.8
10.8
10.8
11.4
6.8
11.4
6.8
10.8
10.8
11.4
6.8
11.4
6.8
10.8
10.8
35V
2200
C101
16V
4700
C102
0.1
C103
0.1
C104
1
C125
1
C161
10V
220
C162
0.1
C163
1
C171
0.01
C172
MC2836
D121
MC2836
D122
ISA1235AC1TP-1F
Q129
ISA1235AC1TP-1F
Q164
ISA1235AC1TP-1F
Q173
ISA1235AC1TP-1F
Q174
2SC3052F-T1-LF
Q128
2SC3052F-T1-LF
Q162
2SC3052F-T1-LF
Q172
2SC3052F-T1-LF
MAIN POWER
ON/OFF CONTROL
Q175
RT1N441C-TP-1
Q165
6
5
4
3
2
1
D
D
G
S
D
D
RSQ035P03TR
B+ SWITCH
Q171
2SC3052F-T1-LF
DC DETECT
Q161
1
R101
1
R102
1
R103
1
R104
1
R105
1
R106
1
R107
1
R108
1
R109
1
R110
180k
R126
180k
R127
100
R128
100
R144
100
R129
4.7k
R145
4.7k
R146
4.7k
R147
4.7k
R148
47k
R160
220k
R161
22k
R163
10k
R165
47k
R164
47k
R166
47k
R167
22k
R168
10k
R171
10k
R177
10k
R178
2.2k
R173
220
R172
1k
R174
2.2k
R179
2.2k
R180
2.2k
R183
R184
22k
22k
R169
1000p
C301
1000p
C302
1000p
C307
1000p
C310
470p
C303
470p
C304
1
C305
0.1
C311
0.1
C312
0.1
C313
0.1
C314
0.1
C351
1
C306
16V
1000
C321
2200p
C352
50V
4.7
C353
16V
100
C354
1
2
3
4
5
5P
CNS351
SP_L
PA_L
HP_GND
PA_R
SP_R
22k
R301
22k
R302
1.2k
R303
1.2k
R304
4.7k
R305
4.7k
R306
22k
R307
22k
R308
100
R309
100
R340
10
R311
10
R312
470k
R313
470k
R314
2.2k
R365
CNA101
3P
1
VHAC
2
VM
3
VHAC
RL202-B322-1
D101
RL202-B322-1
D102
RL202-B322-1
D103
RL202-B322-1
D104
J351
0.1
C350
7
6
5
4
3
2
1
13
12
11
10
9
8
LA4631-E
IC301
R.FIL
PRE.GND
STBY
P.P
VCC
NC
P-GND
NC
NC
C322
16V
1000
220k
R149
1000p
C173
2SC3052F-T1-LF
Q191
D193
UDZW-TE17-6.2B
MC2836
D191
2.2k
R196
220
R193
100k
R194
22
R195
MC2838-T112-1
D192
220
R192
220
R191
100
R197
22
R130
MA2J1110GLS0
D171
22
R175
0.01
C175
(CHASSIS)
W302
MAIN BOARD (3/3)
21
33
36
35
31
32
41
44
43
45
40
42
POWER AMP
IC301
-
+
-
+
L
R
USE 4
:
IMPEDANCE
SPEAKER
OVER CURRENT DETECT
Q172 - 174
AC DETECT
Q162, 164, 165
REGULATOR
4
B
16
6
9
11
D
15
H
10
17
3
5
12
C
F
18
1
E
8
G
14
A
2
13
I
J
K
L
7
RECT
Q119 – 126, 128, 129
KTA1271Y-AT
Q120
KTA1271Y-AT
Q119
1
R137
1
R138
KTA1271Y-AT
Q124
KTA1271Y-AT
Q121
1
R131
1
R134
KTA1271Y-AT
Q125
KTA1271Y-AT
Q122
1
R132
1
R135
KTA1271Y-AT
Q126
KTA1271Y-AT
Q123
1
R133
1
R136
(Page 21)
(Page 22)
(Page 27)
(Page 27)
(Page 22)
HCD-LX40i
HCD-LX40i
24
24
5-12. PRINTED WIRING BOARDS - PANEL Section -
20
21
3
1
1
2
1
7
1
2
11
10
1
2
1
2
10
9
1 2
1
36
2
26
27
1
CNS411
CNS437
SW471
SW472
SW473
SW474
SW475
SW476
SW481
SW491
SW492
SW493
SW494
SW495
SW496
SW497
CNS481
JW401
JW402
JW403
JW404
JW405
JW406
JW407
JW408
JW409
JW410
JW411
JW412
JW413
JW414
JW415
JW416
JW417
JW418
JW419
C471
JW420
JW421
JW422
JW423
JW424
JW425
CN499
JW426
JW427
JW428
JW429
JW430
JW431
JW432
JW433
JW434
JW435
JW436
JW437
JW438
JW439
JW440
JW441
JW442
JW443
JW444
JW445
JW446
JW447
JW448
JW449
JW450
JW451
JW452
JW453
JW454
JW455
JW456
JW457
JW458
JW459
D453
D454
JW460
JW461
JW462
JW463
JW464
JW465
JW466
JW467
JW468
JW469
JW470
JW471
JW472
JW473
JW474
JW475
JW476
JW477
JW478
JW479
IC453
JW480
JW481
JW482
JW483
JW484
JW485
JW486
JW487
JW488
JW489
JW490
JW491
JW492
JW494
JW495
JW496
JW497
JW498
JW499
CNA451
X513
JW500
JW501
JW502
CN383
JW503
JW504
JW505
JW506
JW507
JW508
JW509
JW510
JW511
JW512
JW513
JW514
JW515
JW516
JW518
JW519
LCD451
JW520
JW521
JW522
JW523
JW524
X593
CNS404
B E
B
E
30
31
50
51
81
80
100
1
5
1
Q654
R402
R404
L660
R621
R431
C401
C403
R441
C405
C406
R637
C407
R638
R664
R665
C408
R639
C409
R640
C410
R641
C411
C412
R450
R451
C609
R648
C613
C614
C614
R651
C615
R652
R653
R654
R461
R656
R658
R663
R471
R472
R473
R474
R475
C632
C452
C453
C454
R491
C455
C456
R492
C457
R493
R494
C458
R495
R496
R497
C654
JR402
JR404
JR405
JR406
JR407 JR408
C665
JR412
JR414
JR415
JR416
JR417
JR419
IC401
JR421
JR425
L515
JR426
JR428
JR430
JR427
JR431
JR432
JR433
JR434
C690
IC421
IC422
L532
D451
D452
R601
R502
R503
R504
R505
R507
R508
R509
IC451
IC452
R510
R511
R512
R514
R517
R518
L565
R519
R520
R521
R522
R523
R524
R525
R526
R527
R529
R530
R531
R533
R536
R537
R538
R540
R541
R542
R543
L590
R546
R547
R548
R555
R556
R557
R592
IC502
Q431
R432
R506
R545
R631
R539
R439
R629
R628
R655
DSGX
EQ
FUNCTION +
FUNCTION -
s
7
-
+
ENTER
LIQUID CRYSTAL DISPLAY
1
3
4 5
1
3
4 5
1 3
4
5
1 3
4
5
B
MAIN
BOARD
CNS214
E
KEY-EJECT
BOARD
CNA938
C
IPJ BOARD
CN953
A
CD BOARD
CN201
D
KEY-VOL
BOARD
CNA937
1-878-852-
PANEL BOARD
S471 – 476,
S481, 491 – 497
(LCD BACK LIGHT)
(NC)
STANDBY
USB MENU
REC TO USB
DRIVER
BOARD
1
TUNE –
l m
TUNE +
M L
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
21
(21)
•
: Uses unleaded solder.
• See page 16 for Circuit Boards Location.
Note: When the DRIVER board is damaged,
exchange the entire CDM80BT ASSY.
(Page 26)
(Page 26)
(Page 18)
(Page 20)
(Page 26)
Click on the first or last page to see other CMT-LX40I / HCD-LX40I service manuals if exist.