Sony CMT-EH55DAB / HCD-EH55DAB Service Manual ▷ View online
HCD-EH55DAB
HCD-EH55DAB
21
21
• See page 25 for waveforms. • See page 27 for IC Block Diagrams. • See page 30 for IC Pin Function Description.
7-9. SCHEMATIC DIAGRAM - PANEL Board -
LCD702
Q707
R728
R738
R761
R760
R764
R763
R721
R787
Q703
R775
Q702
R719
R718
R713
Q706
Q705
R785
R772
R779
C719
C726
C732
C733
C701
C702
C706
C711
R724
R726
R742
R743
R744
R745
R746
R750
R753
R759
R762
R765
R766
R774
L701
L702
R768
R777
R792
D701
R727
R736
IC701
Q701
C731
R767
C704
LED701
R714
R757
R739
R754
C710
IC703
C724
R748
R770
R788
R749
C723
C722
C721
C729
R730
R731
C730
C712
C727
X702
C728
R723
R732
R733
R74
7
R74
0
R702
R793
CNP701
CNP702
R784
C725
R701
R711
R710
R709
R708
R707
R706
R705
R704
R703
C716
Q704
R725
CNA750
SW750
SW701
SW702
SW703
SW704
SW705
SW711
SW710
SW709
SW708
SW707
SW706
SW700
R734
Q713
Q714
R799
R798
X701
R755
R771
D804
D801
D702
CNP705
LED702
2SC3052F
10k
10k
47k
100k
22k
22k
470
47k
2SC3052F
47
2SC3052F
1k
1k
10k
2SC3052F
2SC3052F
10k
22k
220k
JR702 0
0.047
0.01
18p
22p
0.1
C744
1000p
C745
0.1
C743
1
C742
1
0.01
0.1
0.1
1k
1k
1k
1k
2.2k
10k
2.2k
2.2k
100
100
2.2k
4.7k
10
0
0
47
47
10k
MAZ8036G0LS0
1k
1k
MB90F831PF
-G-SPE1
ISA1235AC1TP
-1EF
0.1
C707
0.001
220k
470
4V
SELU2B10A-SLF62
10k
100k
10k
10k
1
NJL24H400A
0.0047
47k
47k
1k
1k
0.001
0.001
0.001
0.001
1k
1k
220p
0.1
47p
5.53MHz
47p
470
47k
47k
4.7k
R75
6
100
R75
8
100
4.7k
1k
10k
21P
5P
100k
100
6.3V
470
1k
1k
1k
1k
1k
1k
1k
1k
1k
0.1
RT1N441C
1k
2P
RT1N441C-T
ISA1235EF
100k
47k
32.768kHz
100k
39k
1N4002-
B5
1N4002-B5
MC2836
23P
CNP707
13P
1L4345V22DOTDT02
2
3
4
5
6
7
8
R717
R718
R715
R773
R712
1k
1k
1k
1k
1k
1k
1k
17
18
19
20
21
10
11
12
27
28
29
R729
1k
30
31
33
36
40
43
23
R776
1k
24
34
2
46
49
50
23
46
40
33
24
30
24
36
34
17
49
50
21
18
20
19
31
29
27
28
43
3
11
10
8
7
6
5
12
4
VCC
VSS
AV
C
C
AV
S
S
VSS
V3
COM0
COM1
SEG0
SEG1
VCC
VSS
SEG2
SEG3
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG1
7
SEG18
SEG19
VCC
VSS
X1
X0
9V
DGND
P-MONITER
TP_STATE
FUNC_SDA
AMP_ON
AGND
CD_R
CD_L
CD_DVDD 3.3V
CD_AVDD 3.3V
POWER_ON
CD_ON
DAB_DI
DAB_DO
DAB_3.3V_ON
DAB_1.2V_ON
9V
ZDET
M_MUTE
MGND
VM(7V)
DVDD(3.3V)
D_OUT
DGND
SBSY
REQ
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
RST
AGND
LOUT
ROUT
AVDD(3.3V)
REQ
MMUT
BUS0
BUS1
BUS2
BUS3
RMC
LED_STBY
CD_ON
DAB_1.2V
NC
DAB_3.3V
DAB_DI
DAB_DO
BUCK
FUNC_S
DA
P_MONI
KEY1
KEY2
TP_ST
A
TE
HOL
D
SBSY
SUFIX
RE_VOL
USB_SDA
USB_SCL
MD2
MD1
MD0
RESET
X2
X3
DAC_GND
MGND
MGND
USB_ON
USB L
USB R
USB_5V
AUDIO_SW
NC
KEY0
VSTBY
LED
AMP_
ON
CD OPEN/CLOSE
POW
ER_
ON
VOLUME
ROTARY
ENCODER
AUDIO
_SW
_SW
NC
NC
USB_REG_ON
USB_FLG
USB_EN
USB_BUSY
MCHING
USB_RESET
XRST
SEG3
1
SEG30
SEG29
SEG28
SEG2
7
SEG26
SEG25
SEG2
4
SEG23
SEG22
SEG2
1
SEG20
NC
NC
NC
NC
NC
SEG4
COM3
COM2
SYSTEM CONTROLLER
(LCD BACK LIGHT)
LED DRIVE
RECEIVER
REMOTE CONTROL
CD LID
DETECT
OPEN/CLOSE
FUNCTION
DSGX
USB
CD
TUNER/
BAND
-
TUNING
+
DAB AUTO SCAN
DAB
STANDBY
VOLTAGE
DETECT
Q705,706
REGULATOR
Q701-703
Q713,714
B+ SWITCH
SWITCH
RESET
LIQUID
CRYSTAL
DISPLAY
XCCEN
ROUT
LOUT
AGND
EN
FLG
BUSY
MUCHING
USB_SCL
USB_SDA
RESET
AVDD_3.3V
DVDD_3.3V
DGND
IC707
TK70533SCL
VOUT
VIN
CNT
NP
GND
+3.3V REGULATOR
32
31
19
21
23
(Page 19)
(Page 24)
(Page 24)
(Page 17)
HCD-EH55DAB
HCD-EH55DAB
22
22
•
: Uses unleaded solder.
• See page 15 for Circuit Boards Location.
7-10. PRINTED WIRING BOARD - MAIN Board -
JR403
JR401
JR402
JR404
C651
R621
R171
FB101
C309
C310
C532
C531
R308
C534
C188
C533
FB1
02
C199
R632
C382
C381
R384
R383
D371
R631
D372
Q372
Q37
1
R381
JR103
R382
R630
R375
R374
R376
R377
R378
R379
R380
R37
1
R372
R355
R356
Q351
R629
Q19
5
IC101
C198
R628
C19
7
R627
R626
C189
R625
R624
R623
R622
JR601
C31
2
JR108
JR100
R354
R620
R619
R618
R617
R353
R352
R351
Q35
2
R616
R373
C519
C518
Q123
R615
R614
C105
R613
R612
R611
R604
R603
R19
4
R453
C456
R191
C455
D13
1
R111
R127
R126
R190
R129
R128
R180
C121
R125
R124
R108
C114
C543
R109
R131
R107
R106
R105
R104
R103
R102
R101
C110
C109
D106
Q103
Q102
Q12
2
R170
R542
C156
R154
R130
C311
R133
R13
2
R560
JR106
R519
R520
C513
C514
C502
C511
C512
C406
C408
C407
R561
Q19
7
C196
C404
R564
C562
C616
R110
R545
C564
Q507
C561
R501
R503
R504
R112
C115
R544
R535
C535
R565
R543
C501
C410
R426
C525
R423
R505
R506
R507
R508
R509
R510
C524
R511
R306
R340
R305
R303
R301
R302
R304
R339
C302
C315
C301
IC601
IC304
FB602
R451
R601
C317
C458
C620
C619
C618
C617
JR110
C621
C615
Q12
1
C155
C607
C606
C194
C605
R121
R181
C421
R365
C182
C184
C181
C183
R123
C371
C603
R406
R307
IC452
IC451
R541
R536
C403
C191
C158
C544
R182
R196
R512
R195
R526
C193
C187
R525
C409
R522
R425
R424
R521
R524
C142
C141
R120
R119
L103
R534
R430
R531
R429
R440
R442
C433
C437
C434
C438
R51
3
C565
R51
4
R515
IC401
R516
C522
R517
R151
R518
C503
C504
R529
C529
C507
C506
R419
R527
R441
FB103
R439
R420
R405
R175
R502
R152
C505
R403
R404
R410
R411
R530
R412
C515
R523
R402
R427
C111
C508
R428
R532
C415
R528
C41
6
R452
C528
C527
R43
4
C523
R533
C526
R176
R192
R433
D115
D101
D802
JR801
JR802
Q19
4
R113
R114
JR112
FB401
FB402
CLP103
JW802
JW804
C613
C611
WH401
CLP501
CLP102
JW152
JW145
JW133
JW413
JW142
JW416
JW150
JW412
JW403
JW407
JW101
JW414
JW143
JW410
JW103
JW104
JW154
JW158
JW402
JW146
JW408
JW138
JW165
JW134
JW811
JW102
JW153
JW140
JW139
JW106
JW406
JW415
JW401
JW168
HT101
JW417
JW151
JW411
JW418
JW157
JW215
JW217
JW204
JW810
JW404
JW203
JW202
JW129
JW163
JW164
JW218
JW132
JW801
JW409
JW219
JW812
JW214
JW148
JW221
JW222
JW405
JW201
JW205
JW212
JW213
JW807
JW808
JW208
JW809
JW207
JW161
JW156
JW159
JW160
JW171
CNA102
JW806
JW206
JW216
JW144
JW227
JW228
JW813
JW224
JW200
JW155
PIN101
PIN102
JW226
JW220
JW223
C113
L104
C123
CN602
JW170
CLP101
JW137
D113
JW182
C157
C190
R118
JW107
IC102
D193
CLP401
C122
JW166
JW181
C118
D110
D109
D108
D107
J101
R115
C567
Q198
J102
IC301
L501
Q196
C509
D192
J105
C405
C412
C402
C413
CNP502
CNP501
Q101
C431
D191
FB601
CN105
C171
CN104
CN103
C622
C318
D111
C612
SW501
C432
C610
C609
R116
C452
C604
C451
C602
C125
C124
C308
C453
C307
C304
C303
C454
Q191
CNP802
R117
C457
C101
C510
C306
C401
C192
JW147
JW141
JW167
JW169
C305
JW149
E
E
B C
E
G
S
D
E
E
A
A
K
A
1
4
A
K
A
K
K
E
E
E
E
E
E
E
1
3
E
1
3
E
E
E
(CHASSIS)
1
2
30
29
1-878-236-
11
(11)
C
PANEL BOARD
CNP702
D
PANEL
BOARD
CNP705
G
PT-VBUS
BOARD
CN002
1
3
5
4
1
3
5
4
+
–
+
–
R
L
SPEAKER
PHONES
AUDIO IN
PB
(REC/PB)
REC
MAIN BOARD
K
K/A
A
K
K/A
A
K
K/A
A
ANTENNA
DAB/FM
DAB TUNER
MODULE
BIAS OSC
(L-CH)
(R-CH)
TAPE
MECHANISM
DECK
HRP501
REC/PB
REC/PB
-2
-1
SW501
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
1
3
Ref. No. Location
• Semiconductor
Location
D101
E-10
D106
J-3
D107
I-3
D108
H-3
D109
H-4
D110
H-4
D111
I-4
D113
I-4
D115
D-10
D131
G-4
D191
B-5
D192
B-5
D193
B-5
D371
I-5
D372
H-5
D802
C-2
IC101
B-9
IC102
B-9
IC301
J-6
IC304
F-4
IC401
F-6
IC451
D-5
IC452
D-6
IC601
A-5
Q101
J-4
Q102
I-3
Q103
I-4
Q121
H-4
Q122
H-4
Q123
F-3
Q191
B-9
Q194
B-9
Q195
B-6
Q196
B-6
Q197
B-5
Q198
B-6
Q351
J-4
Q352
J-4
Q371
I-5
Q372
I-5
Q507
I-6
(Page 20)
(Page 20)
(Page 26)
HCD-EH55DAB
HCD-EH55DAB
23
23
7-11. SCHEMATIC DIAGRAM - MAIN Board (1/3) -
IC304
R603
R611
R612
R613
R614
R615
C613
R617
R618
R619
R620
R621
R622
R623
R624
R625
R626
C615
C617
C619
C620
R627
R628
C603
C621
R604
C602
C610
CN602
JR601
R629
C318
C317
R616
C612
C616
C609
C622
C611
C618
R631
R630
R632
FB602
FB601
NJM4558M-
TE2
100
100k
100k
4.7k
100k
4.7k
100
16V
16V
4.7k
4.7k
10k
10k
4.7k
4.7k
10k
10k
4.7k
4.7k
470p
100p
470p
470p
1k
1k
0.1
0.1
100
100
16V
16V
100
16V
16V
30P
0
4.7k
100
16V
0.1
0
1
50V
470p
100
16V
16V
10
50V
1
50V
100p
3.3k
4.7k
3.3k
1.1
μH
LOW-PASS
FILTER
VDD
VSS
DAB_LPF_VCC
L
AGND
R
DGND
DAB-S1DI
DAD-S1DO
1.2V
3.3V
DAB TUNER
MODULE
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
(1/3)
(Page 24)
(Page 24)
HCD-EH55DAB
HCD-EH55DAB
24
24
• See page 25 for waveforms. • See page 27 for IC Block Diagrams.
7-12. SCHEMATIC DIAGRAM - MAIN Board (2/3) -
R502
R503
R504
R505
R509
R527
R528
R564
R565
R507
R508
R506
R521
R561
R522
R529
R424
R406
R402
R109
R518
Q102
Q103
R101
R102
R108
R107
R428
R513
R514
R126
R305
R365
R339
R560
Q352
R354
R353
R351
R355
R356
R515
R516
R371
R372
R373
R374
R375
R376
R377
R378
R379
R380
Q372
R381
R382
R383
R384
R308
R307
R301
R302
D131
R111
R125
R124
Q121
Q123
R105
R103
R104
R110
Q122
R121
R123
R130
R128
R129
R131
Q195
CN103
Q197
R191
R194
R195
R133
Q198
R180
R170
R190
R154
C123
C124
R545
R544
R542
R541
R352
R306
R181
D371
D372
D106
IC401
IC301
Q507
Q191
R120
R119
R441
R442
R427
R419
R420
R196
C125
C101
C109
C110
C111
C113
C114
C115
C121
C122
C141
C142
C158
C189
C191
C194
C197
C199
C301
C302
C303
C304
C305
C306
C309
C310
C311
C312
C381
C382
C401
C402
C403
C405
C407
C409
C412 C413
C415
C416
C432
C433
C434
C501
C502
C503
C504
C505
C506
C507
C508
C509
C510
C511
C513
C518
C519
C522
C525 C526
C529
C533
C534
C543
C561
C562
C564
C604
R151
R152
R171
R176
C190
C192
C171
R192
D802
D101
D115
Q101
Q351
C307
C308
JR100
JR103
JR108
Q194
Q371
C118
CNP802
CN104
JR8
02
JR801
C181
C183
JW182
R112
C182
C184
R182
R118
R116
R117
R115
JW181
JW166
D111
D113
R127
JW169
JW170
C431
R175
R543
C567
C565
C52
3
R52
5
R523
R524
R52
6
C524
R536
R535
R534
C527
R531
R532
C528
R530
R405
R426
R429
R430
C438
R43
9
R440
R340
C315
R303
R304
R403
R404
R411
R412
IC101
C515
C421
R410
C408
C404
C40
6
C531
C532
C410
R425
R423
R433
R434
C512
C544
R510
R512
C514
R517
R511
C105
C371
R501
CNP501
CNP502
JW107
C605
D19
3
D192
D191
C157
C198
C193
JR106
JW137
C156
C155
R132
Q196
C607
J101
J102
D107
D108
D110
D109
CNA102
J105
L501
C535
SW501
IC601
R601
C60
6
IC102
C196
L104
L103
FB101
FB102
R519
R520
C437
R106
R114
R113
FB1
03
CN105
100
4.7k
4.7k
10k
470k
4.7k
4.7k
4.7
4.7
2.2k
2.2k
10k
22k
22k
22k
2.2k
4.7k
1k
100
470
100k
2SC3052F
2SC3052F
10k
100
100
470
100k
100
100
47k
4.7k
2.2k
100
1k
2SC3052F
10k
10k
10k
10k
22k
47
47
1
1
1
1
1
1
1
1
1
1
2SC3052F
10k
10k
10k
1k
22k
22k
22k
22k
MC2836
470k
4.7k
100
2SC3052F
2SC3052F
100k
47k
100k
100k
2SC3052F
220k
470k
220
220
220
220
2SC3052F
5P
2SC3052F
100k
10k
10k
100
KTA1271Y
-AT
100k
10k
100k
10k
10
50V
10
50V
4.7k
4.7k
10k
22k
2.2k
4.7k
10
MC2838
MC2838
UDZW8.2B
BD3881FV
LA4631-E
2SC3052F
KTC3203
2.2k
2.2k
47k
47k
100k
33k
33k
100
10
50V
3300
35V
0.01
0.22
0.1
2200
35V
0.1
0.1
0.47
220
10V
0.01
0.01
0.1
0.1
0.1
0.1
0.1
0.1
0.0022
0.001
4.7
50V
100
16V
1
50V
1
50V
0.001
0.001
470p
470p
0.001
0.01
0.1
50V
50V
100
16V
0.1
0.1
50V
50V
0.0047
0.1
100
16V
100
16V
0.1
0.1
0.22
50V
470p
470p
47p
47p
470p
470p
0.047
0.047
0.01
0.01
33
16V
33
16V
470p
0.001
0.1
0.1
100p
0.01
0.01
100p
0.1
0.1
0.001
0.0022
0.0022
0.01
10
50V
10k
10k
100
100k
10
50V
10
50V
4700
6.3V
10k
MC2837
MC2837
MC2837
2SB1565E
2SJ599-ZK
1000
16V
1000
16V
0
JR112
0
0
0
ISA1235AC1TP
-1EF
ISA1235AC1TP
-1EF
100
16V
16V
3P
3P
0
0
0.1
0.1
470k
0.1
0.1
10
220
220
220
220
1N4002-B5
1N4002-B5
47k
0.22
50V
100k
4.7k
0.0047
1
0.01
10k
4.7k
4.7k
10k
0.01
220
220
10k
R533 10k
0.001
4.7k
4.7k
0.001
2.2k
0
4.7k
4.7k
4.7k
470p
4.7k
4.7k
100
0.001
2.2k
2.2k
1k
220
1k
220
TK70540SCL
47p
0.1
100k
0.0047
0.22
0.22
0.001
0.001
0.1
4.7k
4.7k
22k
22k
470p
0.001
470k
2.2M
0.001
100k
2.2M
0.1
0.1
100
4P
3P
1
1N4002-B5
1N4002-B5
1N4002-B5
100
16V
0.1
0.1
0
0.1
0.1
100
KTA1271Y-AT
1
RL202-B322-1
RL202-B322-1
RL202-B322-1
RL202-B322-1
4P
0.1
MM3291CNRE
47k
JR110
0
0.47
KIA7805API
0.1
33k
33k
470p
18k
4.7k
4.7k
23P
FUSD
CD_ON
FUSD
USB-L
USB-R
CD-L
CD-R
AU_SW
CD-L
CD-R
USB-R
USB-L
TPST
P_ON
CD_ON
DAB_DO
DAB_DI
P_ON
DAB_DI
DAB_DO
TPST
S
VOUT
VIN
NP
GND
DAB_DI
DAB_DO
DAB_3.3V_ON
DAB_1.2V_ON
NC
GND_DAB
SG_DAB
GND_DAB
9V
DGND
P-MONITER
TP_STATE
FUNC_SDA
AMP_ON
AGND
CD_R
CD_L
CD_DVDD 3.3V
CD_AVDD 3.3V
POWER_ON
CD_ON
9V
MGND
MGND
NC
USB_5V
USB R
AUDIO_SW
AU_SW
USB_ON
USB L
VSTBY
CNT
L
R
AUX-L
AUX-
R
TU-L
TU-R
CD-R
CD-L
GND
VMAC
USB_EN
VMAC
GND
OUT
NC
VDD
CE
DAB_LPF_VCC
L
AGND
R
AGND
+9V
DGND
DAB-S1DI
3.3V
1.2V
DAB-S1D0
NC
NC
NC
P0WER AMP
SPEAKER
PHONES
B+ SWITCH
Q351,352
Q371,372
AC DETECT
Q101-103
+9V REGULATOR
DC DETECT
AC DETECT
Q121,122
AUDIO IN
BIAS OSC
OSC
REC
PB
(REC/PB)
-1
-2
B+ SWITCH
Q194,195
B+ SWITCH
Q196-198
+1.2V REGULATOR
VOLTAGE
DETECT
REGULATOR
+5V REGULATOR
I
O
G
INPUT
SELECTOR,
ELECTRICAL
VOLUME
ANTENNA
(2/3)
+3.3V
HRP501
(REC/PB)
R-CH
L-CH
MECHANISM
TAPE
DECK
DAB/FM
10
μH
C187
4.7k
C188
4.7k
AU-L
AU-R
USB-L
USB-R
CD-L
CD-R
AU_SW
{ }
{ }
{ }
19
21
23
(Page 25)
(Page 23)
(Page 23)
(Page 26)
(Page 21)
(Page 21)
(Page 25)
(Page 25)
Click on the first or last page to see other CMT-EH55DAB / HCD-EH55DAB service manuals if exist.