Sony CMT-EH25 / CMT-EH26 / HCD-EH25 / HCD-EH26 Service Manual ▷ View online
HCD-EH25/EH26
37
PANEL BOARD IC701 MB90F830PF-GE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
LED
O
LED drive signal output terminal for liquid crystal display back light "H": LED on
2
CD OPEN/CLOSE
I
CD lid open/close detection switch input terminal "L": CD lid is closed
3
REQ
I
Request signal input from the CD-MP3 processor
4
MMUT
O
Muting signal output to the coil/motor driver
5 to 8
BUS0 to BUS3
O
Serial data output to the CD-MP3 processor
9
RMC
I
Remote control signal input from the remote control receiver
10
BUCK
O
Serial data transfer clock signal output to the CD-MP3 processor
11
XCCEN
O
Chip enable signal output to the CD-MP3 processor
12
XRST
O
Reset signal output to the CD-MP3 processor "L": reset
13
X2
I
Sub system clock input terminal (32768 Hz)
14
X3
O
Sub system clock output terminal (32768 Hz)
15
VCC
-
Power supply terminal (+3.3V)
16
VSS
-
Ground terminal
17
USB_RESET
O
Reset signal output to the USB controller "L": reset
18
MCHING
O
Music change signal output to the USB controller
19
USB_BUSY
I
Command operation busy signal input from the USB controller
20
USB_FLG
I
Flag delay signal input from the VBUS power on/off switch
21
USB_EN
O
Power supply on/off control signal output to the VBUS power on/off switch "H": power on
22
LED_STBY
O
LED drive signal output terminal for STANDBY indicator "L": LED on
23
CD_ON
O
Power supply on/off control signal output terminal for CD section "H": power on
24
USB_REG_ON
O
Power supply on/off control signal output terminal for USB section "H": power on
25
TU_DO
I
Serial data input from the FM/AM tuner
26
RDS_DATA
I
RDS serial data input from the RDS decoder (EH25: AEP, UK/EH26 only)
27 to 29
NC
-
Not used
30
AUDIO_SW
O
CD/USB audio selection signal output to the audio select switch "L": CD, "H": USB
31
NC
-
Not used
32
AVCC
-
Power supply terminal (+3.3V)
33
FUNC_SDA
O
Serial data output to the electrical volume
34
AMP_ON
O
Standby control signal output to the power amplifi er "L": standby
35
AVSS
-
Ground terminal
36
P_MONI
I
Power monitor input terminal
37, 38
KEY1, KEY2
I
Front panel key input terminal (A/D input)
39
TU_ASD
I
Auto gain control signal input from the FM/AM tuner
40
TP_STATE
I
REC/PB detection signal input terminal
41
KEY0
I
Power key input terminal
42
HOLD
I
Hold signal input terminal
43
SBSY
I
Subcode block sync signal input from the CD-MP3 processor
44
VSS
-
Ground terminal
45
RDS_CLK
I
RDS serial data transfer clock signal input from the RDS decoder
(EH25: AEP, UK/EH26 only)
(EH25: AEP, UK/EH26 only)
46
POWER_ON
O
Main power supply on/off control signal output terminal "H": power on
47
SUFIX
I
Destination setting terminal
48
RE_VOL
I
Jog dial pulse input from the rotary encoder (for VOLUME)
49
USB_SDA
I/O
Two-way I2C data bus with the USB controller
50
USB_SCL
O
I2C clock signal output to the USB controller
51
MD2
I
Mode setting terminal Fixed at "L" in this set
52, 53
MD1, MD0
I
Mode setting terminal Fixed at "H" in this set
54
RESET
I
Reset signal input terminal "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
55
TU_CE
O
Chip enable signal output to the FM/AM tuner
56
TU_CLK
O
Serial data transfer clock signal output to the FM/AM tuner
57
TU_DI
O
Serial data output to the FM/AM tuner
58
V3
-
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-
age
age
59 to 62
COM0 to COM3
O
Common drive signal output to the liquid crystal display
63, 64
SEG0, SEG1
O
Segment drive signal output to the liquid crystal display
HCD-EH25/EH26
38
Pin No.
Pin Name
I/O
Description
65
VCC
-
Power supply terminal (+3.3V)
66
VSS
-
Ground terminal
67 to 89
SEG2 to SEG24
O
Segment drive signal output to the liquid crystal display
90
VCC
-
Power supply terminal (+3.3V)
91
VSS
-
Ground terminal
92
X1
O
Main system clock output terminal (5.53 MHz)
93
X0
I
Main system clock input terminal (5.53 MHz)
94 to 100
SEG25 to SEG31
O
Segment drive signal output to the liquid crystal display
39
HCD-EH25/EH26
SECTION 8
EXPLODED VIEWS
1
A-1544-898-A MAIN BOARD, COMPLETE (EH25: AEP, UK/EH26)
1
A-1544-906-A MAIN BOARD, COMPLETE (EH25: KR)
1
A-1547-611-A MAIN BOARD, COMPLETE (EH25: RU)
1
A-1717-271-A MAIN BOARD, COMPLETE (EH25: AUS)
1
A-1718-605-A MAIN BOARD, COMPLETE (EH25: SP, IND)
1
A-1724-779-A MAIN BOARD, COMPLETE (EH25: MX)
1
A-1724-929-A MAIN BOARD, COMPLETE (EH25: E2, E51)
2
4-147-421-01 HOLDER,
WIRE
3
3-287-571-01 CABINET, REAR (AEP, RU, UK, SP, KR, IND, AUS)
3
3-287-571-21 CABINET, REAR (E2, E51)
3
3-287-571-31 CABINET, REAR (MX)
0 4
1-769-079-71 AC POWER-SUPPLY CORD (KR)
0 4
1-775-790-81 CORD, POWER (AUS)
0 4
1-790-757-52 CORD, POWER (MX)
0 4
1-834-966-31 CORD, POWER (AEP, RU, UK, E2, E51, SP, IND)
5
3-198-753-11 FOOT
(FELT)
7
3-087-053-01 +BVTP2.6
(3CR)
8
2-580-644-01 SCREW, +KTP2 3X8
9
3-572-085-00 WASHER, FIBER (E2, E51, MX, SP, KR, IND, AUS)
10
1-500-868-11 CORE,
FERRITE
0 F001
1-532-275-33 FUSE (T160mAL/250V)
(AEP, RU, UK, SP, KR, IND, AUS)
0 F001
1-532-467-33 FUSE (T315mAL/250V) (E2, E51, MX)
0 F002
1-532-275-33 FUSE (T160mAL/250V) (E2, E51)
0 PT005
1-445-421-11 TRANSFORMER, POWER (KR)
0 PT005
1-445-423-11 TRANSFORMER, POWER (E2)
0 PT005
1-445-424-11 TRANSFORMER, POWER (MX)
0 PT005
1-445-506-11 TRANSFORMER, POWER (AEP, RU, UK)
0 PT005
1-445-755-11 TRANSFORMER, POWER (E51)
0 PT005
1-445-756-11 POWER TRANSFORMER (SP, IND, AUS)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#2
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#3
7-685-649-79 SCREW +BVTP 3X14 TYPE2 IT-3
(E2, E51, MX, SP, KR, IND, AUS)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet’s Color
• Abbreviation
AUS :
AUS :
Australian
model
E2
: Colombian model
E51
: Chilean and Peruvian models
IND
: Indian model
8-1. OVERALL SECTION
The components identifi ed by mark
0
or dotted line with mark
0 are critical for
safety.
Replace only with part number specifi ed.
Replace only with part number specifi ed.
1
#2
#2
#2
#3
#2
#1
#1
#1
#2
not supplied
not supplied
not supplied
not
supplied
supplied
not
supplied
supplied
not supplied
MAIN
board
board
PT005
F001
front cabinet section
top cabinet section
3
4
8
8
5
5
9
10
2
7
7
not supplied
(HOLDER1 board)
(HOLDER1 board)
not supplied
(HOLDER11 board)
(HOLDER11 board)
not supplied
(PT-VBUS board)
(PT-VBUS board)
(AEP,
RU, UK)
RU, UK)
(AEP, RU, UK, KR)
(E2, E51,
MX)
MX)
not supplied
A
A
D
C
C
D
D
B
B
2
F002
not supplied
(VOLTAGE-SEL board)
(VOLTAGE-SEL board)
(E2, E51)
(Except E2, E51)
E
E
E
(E2, E51, MX, SP,
KR, IND, AUS)
KR, IND, AUS)
(E2, E51, MX, SP,
KR, IND, AUS)
KR, IND, AUS)
(E2, E51, MX, SP, KR, IND, AUS)
(E2, E51, MX,
SP, IND, AUS)
SP, IND, AUS)
(E2, E51, MX, SP,
KR, IND, AUS)
KR, IND, AUS)
9
Ver. 1.6
Note: REAR CABINET of AEP, Russian and UK models has been changed
in the midway of production. Installation method of POWER TRANS-
FORMER has been changed according to above-mentioned change.
FORMER has been changed according to above-mentioned change.
Refer to supplement-1 about details.
KR
: Korean model
MX
: Mexican model
RU
: Russian model
SP
: Singapore model
40
HCD-EH25/EH26
8-2. FRONT CABINET SECTION
51
3-280-084-01 KNOB
(VOL)
52
A-1544-213-A CABINET ASSY, FRONT (EH25: UK)
52
A-1545-262-A CABINET ASSY, FRONT (EH26)
52
A-1545-899-A CABINET ASSY, FRONT (EH25: KR, AUS)
52
A-1545-958-A CABINET ASSY, FRONT (EH25: RU)
52
A-1564-377-A CABINET ASSY, FRONT (EH25: AEP)
52
A-1731-506-A CABINET
ASSY,
FRONT
(EH25: E2, E51, MX, SP, IND)
53
3-280-079-01 BUTTON COVER (C)
54
4-113-945-01 SPRING
(CASSETTE)
55
3-288-035-01 HOLDER
(CASSETTE)
56
3-280-077-21 LID,
CASSETTE
(EH25: AEP, UK, E2, E51, MX, SP, IND)
56
3-280-077-41 LID, CASSETTE (EH26)
56
3-280-077-51 LID, CASSETTE (EH25: RU, KR, AUS)
57
3-047-468-62 DAMPER
58
3-087-053-01 +BVTP2.6
(3CR)
60
3-280-083-02 BUTTON
(OPERATION)
61
2-636-524-01 HOLDER,
PWB
62
3-280-081-01 BUTTON
(CASSETTE)
(
z, N, m, M, x Z, X)
63
3-280-088-01 SPRING (C-BUTTON LID)
64
A-1544-901-A PANEL BOARD, COMPLETE (EH25: UK)
64
A-1544-908-A PANEL BOARD, COMPLETE (EH25: SP, KR, IND)
64
A-1547-613-A PANEL BOARD, COMPLETE (EH25: RU)
64
A-1709-828-A PANEL BOARD, COMPLETE (EH25: AEP/EH26)
64
A-1717-272-A PANEL BOARD, COMPLETE (EH25: AUS)
64
A-1724-930-A PANEL BOARD, COMPLETE (EH25: E2, E51, MX)
65
2-636-545-01 SHEET
(LCD)
66
2-636-532-01 ILLUMINATOR
(LCD)
67
2-636-531-01 HOLDER
(LCD)
68
2-636-546-01 LEVER
(REC)
69
3-254-022-01 SCREW
70
4-147-421-01 HOLDER,
WIRE
71
A-1771-034-B MF-EH15 (TAPE MECHANISM DECK)
72
2-670-389-01 BELT
(1)
73
3-214-817-01 BELT
(FR)
74
A-1527-435-A USB BOARD, COMPLETE
FFC001 1-832-796-21 CABLE, FLEXIBLE FLAT (5 CORE)
(EH25: RU, E2, E51, MX, SP, KR, IND, AUS)
FFC001 1-832-806-21 CABLE, FLEXIBLE FLAT (7 CORE)
(EH25: AEP, UK/EH26)
FFC002 1-831-952-21 CABLE, FLEXIBLE FLAT (19 CORE)
FFC003 1-832-748-21 CABLE, FLEXIBLE FLAT (21 CORE)
FFC004 1-832-706-21 CABLE, FLEXIBLE FLAT (13 CORE)
FFC003 1-832-748-21 CABLE, FLEXIBLE FLAT (21 CORE)
FFC004 1-832-706-21 CABLE, FLEXIBLE FLAT (13 CORE)
LCD702 1-802-381-11 DISPLAY PANEL, LIQUID CRYSTAL
LED701 6-502-498-01 LED SELU2B10A-SLF62FGH (LCD BACK LIGHT)
LED701 6-502-498-01 LED SELU2B10A-SLF62FGH (LCD BACK LIGHT)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
71
not supplied
72
73
61
62
63
64
65
66
67
68
69
69
70
70
51
52
53
54
55
56
57
58
58
58
58
58
58
74
58
58
58
60
not supplied
not supplied
FFC001
FFC002
FFC004
FFC003
LCD702
LED701
PANEL board
&
'
'
&
(AEP, RU,
UK)
UK)
not
supplied
supplied
Ver. 1.6
Click on the first or last page to see other CMT-EH25 / CMT-EH26 / HCD-EH25 / HCD-EH26 service manuals if exist.