Sony CMT-EH25 / CMT-EH26 / HCD-EH25 / HCD-EH26 Service Manual ▷ View online
HCD-EH25/EH26
HCD-EH25/EH26
25
25
• See page 23 for Waveforms. • See page 27 for IC Block Diagrams. • See page 33 for IC Pin Function Description.
7-13. SCHEMATIC DIAGRAM - PANEL Board -
R767
R748
R721
R787
X701
R775
R718
R713
R779
X702
C719
C726
C732
C733
C701
C702
C707
C716
L702
R702
R703
R704
R705
R706
R707
R708
R711
R720
R741
R742
R743
R744
R745
R746
R749
R750
R753
R759
R762
R765
R766
R774
R789
R790
R791
R768
R777
Q702
Q703
Q704
Q705
Q706
Q701
R724
R725
R726
R729
R731
R735
C739
Q710
IC701
Q712
D704
D705
Q713
Q714
R799
R712
R740
C729
CNP706
C741
C750
R794
R796
C751
C748
D703
C742
C743
IC707
R701
C744
R798
C704
Q711
LED702
R710
R709
R734
C727
C728
R723
LED701
C710
R739
R738
R732
R716
R715
R788
R751
R770
R733
R761
C724
R760
R730
C722
C721
C712
R771
R793
R792
L701
R763
R784
R785
D701
C753
IC706
R756
R755
D702
C738
CNP707
C740
R736
R727
R757
Q707
IC703
SW705
SW704
SW711
SW710
SW709
SW708
SW707
SW706
SW702
SW703
SW700
R795
R797
C731
CNP701
R764
CNP703
R728
JR702
JR705
R719
C711
C706
R722
Q709
Q708
R781
R782
R783
C725
R772
R754
CNA750
R714
SW750
SW701
C745
IC709
C723
220k
47k
470
47k
32768Hz
47
1k
10k
220k
5.53MHz
0.047
0.01
18p
22p
0.1
0.01
0.001
0.1
0
1k
1k
1k
1k
1k
1k
1k
1k
1k
4.7k
1k
1k
2.2k
10k
2.2k
1k
2.2k
100
100
2.2k
4.7k
10
1k
1k
1k
1k
47
47
2SC3052F-T
2SC3052F-T
RT1N441C-T
2SC3052F-T
2SC3052F-T
ISA1235
AC1TP-1EF
1k
1k
1k
1k
1k
1k
1000p
RT1N441C-T
MB90F830PF
-GE1
2SC3052F-T
1N4002-B5
1N4002-B5
RT1N441C-T
ISA1235
100k
0
4.7k
0.001
19P
1
0.1
6.8k
2.7k
0.1
0.1
MC2838-T11
1
1
TK70533SCL
470
1000p
47k
470
4V
2SC3052F-T
1L4345V22DOTDT02
1k
1k
1k
47p
47p
470
SELU2B10A-SLF62
1
10k
10k
47k
100
100
1k
1k
47k
47k
47k
0.0047
100k
1k
4.7k
0.001
0.001
0.1
39k
10k
10k
0
22k
100k
10k
UDZW-TE17-
1
TK11135CSCL
1k
100k
MC2836-T11
1
13P
0.1
1k
1k
100k
2SC3052F-T
NJL24H400A
1.5k
680
0.1
21P
22k
10k
0
0
1k
0.1
0.1
1k
ISA1235
ISA1235
0
100
6.3V
22k
10k
2P
10k
0.1
PST3542UL
0.001
GND
2
3
4
5
6
7
8
10
11
12
33
36
39
40
45
43
25
26
34
2
46
45
26
57
56
55
39
25
33
34
36
40
46
17
18
19
20
21
30
49
50
30
24
24
24
17
18
19
20
21
49
50
4
43
3
11
10
8
7
6
5
12
57
56
55
VCC
VSS
AVCC
AVSS
VSS
V3
COM0
COM1
SEG0
SEG1
VCC
VSS
SEG2
SEG3
SWG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
VCC
VSS
X1
X0
DGND
P-MONITER
TP_STATE
FUNC_SDA
AMP_ON
AGND
CD_R
CD_L
POWER_ON
TU_DO
TU_ANSD
TU_CK
TU_DI
TU_CE
RDS_SD
RDS_SC
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
USB_FLG
USB_EN
LED_STBY
CD_ON
TU_DO
RDS_DATA
BUCK
USB_RESET
MCHING
USB_BUSY
FUNC_SDA
AUDIO_SW
P_MONI
KEY1
KEY2
TU_ASD
TP_STATE
HOLD
SBSY
RDS_CLK
SUFIX
RE_VOL
USB_SDA
USB_SCL
TU_DI
TU_CLK
TU_CE
MD2
MD1
MD0
X2
X3
DAC_GND
MGND
MGND
USB_REG_ON
KEY0
VSTBY
LED
AMP_ON
CD OPEN/CLOSE
POWER_ON
NC
NC
NC
NC
ROUT
LOUT
AGND
EN
FLG
BUSY
MUCHING
USB_SCL
USB_SDA
RESET
AVDD_3.3V
DVDD_3.3V
DGND
USB_L
USB_R
AUDIO_SW
AGND
VM2-7V
VM2-7V
REST
VOUT
VIN
NP
CNT GND
VOUT
VIN
GND
CNT
DSGX
VDD
NP
GND
CD
OUT
USB_REG_ON
CD
TUNER/
BAND
-
TUNING
+
FUNCTION
+
-
REMOTE CONTROL
RECEIVER
SYSTEM CONTROLLER
LIQUID
LCD702
CRYSTAL
DISPLAY
(LCD BACK LIGHT)
OPEN/CLOSE
DETECT
CD LID
REGULATOR
Q701 – 703
VOLUME
ROTARY
ENCODER
EH25: RU, E2, E51, MX,
SP, KR, IND, AUS
SP, KR, IND, AUS
(EH25: AEP, UK/EH26)
5P
7P
(EH25: AEP, UK/EH26)
REGULATOR
+3.5V
REGULATOR
+3.3V
VOLTAGE DETECT
Q705, 706
LED DRIVE
Q711, 712
B+ SWITCH
Q713, 714
SWITCH
RESET
STANDBY
LED702
XCCEN
XRST
EH25:AEP,
UK/EH26
REGULATOR
R781
0
220
(EH25: AEP, UK/EH26)
(EH25: RU)
(EH25: RU)
470 (EH25: E2, E51, MX)
4.7k (EH25: AUS)
0
(EH25: RU, E2, E51, MX, AUS)
(EH25: SP, KR, IND)
4.7K
R782
(EH25: AEP, RU, UK, E2,
E51,
MX, A
U
S
/EH26)
(EH25: RU, E2, E51, MX, SP, KR, IND, AUS)
REGULATOR
LED DRIVE
USB
INVERTER
VOLTAGE
DETECTOR
EH25: AEP,
UK/EH26
COM3
COM2
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
AC1TP-1EF
AC1TP-1EF
AC1TP-1EF
+3.3V
+3.3V
(Page 19)
(Page 22)
(Page 22)
(Page
17)
Ver. 1.6
Note: In this set of AEP model, C748, C753, D703, IC709 and Q710
have been deleted in the midway of production.
HCD-EH25/EH26
HCD-EH25/EH26
26
26
•
: Uses unleaded solder.
•
: Uses unleaded solder.
• See page 15 for Circuit Boards Location.
• See page 15 for Circuit Boards Location.
7-14. PRINTED WIRING BOARD - PT-VBUS Board (Except EH25: E2, E51) -
7-15. PRINTED WIRING BOARDS - PT-VBUS Section (EH25: E2, E51) -
F001
CNA901
D902
CN002
T003
T001
T002
C903
L901
C906
5
1
2
4
D903
IC901
D901
C910
LF901
T004
R913
C913
C902
C911
R919
C909
R918
R921
R920
C901
PT005
1-877-095-
12, 13
(12, 13)
PT-VBUS BOARD
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
POWER TRANSFORMER
1
4
B1
MAIN
BOARD
CNA102
E1
USB
BOARD
CN103
1
2
(AC IN)
A
B
C
D
E
F
G
1
2
3
4
5
6
• See page 27 for IC Block Diagrams.
7-16. SCHEMATIC DIAGRAM - PT-VBUS Section -
R913
D903
IC901
C902
C903
C906
C909
C910
R918
CNA901
C911
R919
R920
R921
C913
CN002
L901
100
100
PH
D901
D902
F001
LF901
(EXCEPT EH25: E2, E51)
(EH25: E2, E51)
T002
W005
W006
W007
WH5
WH6
WH7
PT005
T001
C901
2.2k
RK14
PQ1CG2032FZ
0.1
2200
35V
220
35V
35V
0.1
2200
16V
2.2k
2P
0.1
4.7k
10k
2.2k
0.1
4P
1N4002-B5
1N400-B5
T160mAL 250V (EXCEPT EH25: E2, E51, MX)
F002
T160mAL
250V
T315mAL 250V (EH25: E2, E51, MX)
0.1
VBUS_5V
VBUS_GND
VMAC
VMAC
GND
USB_EN
(CHASSIS)
POWER
TRANSFORMER
GND
VOUT
VIN
OADJ
ON/OFF
REGULATOR
5
7
(AC IN)
BUILT IN TRANSFORMER
NOT REPLACEABLE:
+5V
S002
VOLTAGE
SELECTOR
220 - 240V
110 - 120V
VOLTAGE-SEL
BOARD
7
8
(Page 19)
(Page 22)
(Page
18)
(Page
18)
(Page
20)
(Page
20)
Ver. 1.5
W008
PT005
F001
CNA901
D902
CN002
T004
T003
T001
T002
C903
L901
C906
D903
IC901
D901
C910
LF901
R913
C913
C902
C911
R919
C901
C909
R921
R920
R918
S002
T005
T006
F002
WH5
WH6
WH7
W005
W006
W007
1-876-658-
11
(11)
VOLTAGE-SEL BOARD
110 – 120V
RED
WHT
BLK
220 – 240V
VOLTAGE
SELECTOR
RED
WHT
BLK
1-879-976-
11
(11)
PT-VBUS BOARD
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
POWER TRANSFORMER
1
4
1
5
2
4
B2
MAIN
BOARD
CNA102
E2
USB
BOARD
CN103
1
2
(AC IN)
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
HCD-EH25/EH26
27
• IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN 1
GND 2
VCONT 3
NC
4
VOUT
5
+
–
IC401 BA5826HFP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
VCC
VCC
– USB Board –
IC102 TK63115SCL-G@GT
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN 1
GND 2
VCONT 3
NC
4
VOUT
5
+
–
HCD-EH25/EH26
28
IC105 WM8727GED/RV
OUT1
VCC
OUT2
IN2
PRE GND
IN1
P.
P.
ST
ANDBY
2
FIL
TER
1
3
4
5
6
7
8
11
13
POWER GND
10
9
12
PRE
DRIVE AMP
INPUT
AMP
STANDBY
SWITCH
THERMAL
SHUT DOWN
PROTECTOR
POP NOISE
PREVENTION
CIRCUIT
REFERENCE
AMP
RIPPLE
FILTER
OUTPUT
AMP
PRE
DRIVE AMP
INPUT
AMP
OUTPUT
AMP
– MAIN Board –
IC301 LA4631-E
1
DIN
8 VOUTL
7 VDD
6 GND
6 GND
5 VOUTR
2
BCKIN
3
LRCIN
4
MCLK
SERIAL
INTERFACE
MUTING
MUTING
DIGITAL
FILTERS
RIGHT
DAC
LEFT
DAC
LOW PASS
FILTER
LOW PASS
FILTER
SIGMA-DELTA
MODULATOR
SIGMA-DELTA
MODULATOR
1
EN
2
GND
3
FLG
4 IN
5 OUT
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
IC103 R5523N001B-TR-F
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