Sony CMT-EP303 / HCD-EP303 Service Manual ▷ View online
31
HCD-EP303
6-12. IC Pin Function Description
• IC601 µPD753016AGC-F37-3B9 SYSTEM CONTROLLER, LIQUID CRYSTAL DISPLAY DRIVER (DISPLAY BOARD)
I/O
O
O
O
I
O
O
O
O
—
O
O
O
O
I
O
O
I
I
I
I
I
O
O
O
O
I
O
O
I
—
I
O
—
I
O
I
I/O
—
I
I
I
O
Description
Segment drive signal output to the liquid crystal display (LD621)
Common drive signal output to the liquid crystal display (LD621)
Bias output for the liquid crystal display drive
Input terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
Power on/off control signal output for the tuner section “L ”:power on
Audio line muting on/off control signal output “L ”:muting on
Power on/off control signal output for the CD section “L ”:power on
LED drive signal output of the TIMER indicator (D619)“L ”:LED on
Ground terminal
Reset signal output to the CD section “L ”:reset
Not used (pull up)
PLL serial data transfer clock signal output to the FM/AM PLL (IC102)
PLL serial data output to the FM/AM PLL (IC102)
FM and AM signal meter voltage detection input from the LA1823 (IC101)
Serial data transfer clock signal output to the LC75392 (IC203)
Serial data output to the LC75392 (IC203)
FM stereo detection signal input from the LA1823 (IC101)“L ”:stereo
Serial data transfer clock signal input from the CD section
Serial data transfer clock signal input from the RDS decoder (IC604) (not used)
Remote control signal input from the remote control receiver (RM601)
Recording on detection signal input
Audio line muting on/off control signal output “H ”:muting on
PLL chip enable signal output to the FM/AM PLL (IC102)“H ” active
Chip enable signal output to the LC75392 (IC203)“H ” active
Not used (open)
Serial data input from the RDS decoder (IC604) (not used)
System power on/off control signal out “H ”:power on
Mega bass on/off selection signal output “H ”:mega bass on
CD lid open/close detection switch (SW600)input terminal “L ”:CD lid is closed
Power supply terminal
Power failure detection input terminal “L ”:power failure,“H ”:power on
Not used (open)
Internal connection terminal (connected to power supply)
Main system clock input terminal (6 MHz)
Main system clock output terminal (6 MHz)
PLL serial data input from the FM/AM PLL (IC102)
Two-way data bus with the CD section
Not used (open)
Not used (fixed at “H ”)
Key return signal input from the key matrix “L ” input when key pressing
System reset signal input from the reset signal generator (IC603)“L ”:reset
For several hundreds msec.after the power supply rises,“L ” is input,then it changes to “H ”
Segment drive signal output to the liquid crystal display (LD621)
Pin Name
S12 to S31
COM0 to COM3
BIAS
VLC0 to VLC2
TUNER
TAPE
CD
TIMER STATUS
VSS
CD-RESET
SURROUND
PLL CL
PLL DI
TUNER SD
CLOCK
DATA
STEREO
CD CLOCK
RDS CLOCK
REMOTE
SYNCRO
MUTE
PLLCE
CE
SHRST
RDS DATA
PSW
BASS BOOST
DPSW2/SLEND
VDD
XT1
XT2
IC
X1
X2
PLLDO SELECT
CD DATA
NC
12/24H SELECT
KEY R0 to KEY R4
CPU RESET
S0 to S11
Pin No.
1 to 20
21 to 24
25
26 to 28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64 to 67
68
69 to 80
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of this parts
list.
packing materials are given in the last of this parts
list.
32
HCD-EP303
SECTION 7
EXPLODED VIEWS
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
le numéro spécifié.
•
Abbreviation
CND : Canadian model.
E51 : Chilean and Peruvian model.
MY : Malaysia model.
SP
CND : Canadian model.
E51 : Chilean and Peruvian model.
MY : Malaysia model.
SP
: Singapore model.
AR
: Argentine model.
MX : Mexican model.
AUS : Australian model.
AUS : Australian model.
7-1. Cabinet Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
12
5
1
2
11
9
8
7
6
#1
#1
#4
#2
#2
#2
#2
#3
#5
Front panel section
TR401
F401
F402
CD cabinet section
#3
#3
#1
3
1
3-451-162-00 WASHER
2
4-235-952-01 AC CORD HOLDER
3
1-500-712-11 CORE, FERRITE (AEP,UK)
5
A-4676-971-A MAIN BOARD, COMPLETE (AEP,UK)
5
A-4729-806-A MAIN BOARD, COMPLETE (EXCEPT AEP,UK)
0 6
1-555-750-00 CORD, POWER (AEP,E51,MY,SP)
0 6
1-696-535-11 CORD, POWER (UK)
0 6
1-696-966-31 CORD, POWER (AUS)
0 6
1-783-525-31 CORD, POWER (MX)
0 6
1-783-820-11 CORD, POWER (US,CND)
0 6
1-783-941-51 CORD, POWER (AR)
7
4-235-974-01 CAB, ANTENNA COVER
8
1-823-170-11 CORD (WITH CONNECTOR) (FM ANT)
9
4-235-972-01 REAR CABINET (AEP,UK)
9
4-241-498-01 REAR CABINET (EXCEPT AEP,UK)
11
4-240-251-01 POWER PWB MOUNT ING BKT.
12
A-4729-805-A POWER BOARD, COMPLETE (US,CND,MX)
12
A-4676-975-A POWER BOARD, COMPLETE
(EXCEPT US,CND,MX)
0 F401
1-533-470-11 FUSE, GLASS TUBE (DIA. 5) T3.15AL/250V
(EXCEPT US, CND, MX)
0 F401
1-533-690-11 FUSE, GLASS SYLINDRICAL (DIA. 5)
3.15A/125V (US, CND, MX)
0 F402
1-533-296-11 FUSE, GLASS SYLINDRICAL (DIA. 5)
2A/125V (US, CND, MX)
0 F402
1-533-468-11 FUSE, GLASS TUBE (DIA. 5) T2AL/250V
(EXCEPT US, CND, MX)
0 TR401
1-437-816-11 TRANSFORMER, POWER
(EXCEPT US, CND, MX)
0 TR401
1-437-818-11 TRANSFORMER, POWER (US, CND, MX)
#1
7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S
#2
7-685-647-14 SCREW +BVTP 3X10 TYPE2 SLIT
#3
7-682-246-04 SCREW +K 3X5
#4
7-685-535-14 SCREW +BTP 2.6X10 TYPE2 N-S
#5
7-685-648-14 SCREW +BVTP 3X12 TYPE2 SLIT
#12
7-685-646-14 SCREW +BVTP 3X8 TYPE2 SLIT
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
33
HCD-EP303
7-2. Front Panel Section -1
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
67
68
69
70
71
72
54
55
56
57
58
59
60
not supplied
62
65
not supplied
73
75
76
74
66
51
52
53
#1
#13
#2
#1
#10
#6
not supplied
80
77
51
4-240-260-01 VOLUME SWING KNOB
52
4-240-256-01 VOLUME SWING SHAFT
53
4-240-245-01 VOLUME DECORATION RING
54
4-240-241-01 DISPLAY WINDOW
55
4-236-899-01 DAMPER
56
4-240-240-01 CASS LID WINDOW
57
4-240-274-01 CASS LID
58
4-240-246-01 CASS LID BKT.
59
4-235-981-01 CASS LID SPRING
60
4-240-247-01 MAIN PWB MOUNT ING BKT.A
62
A-4676-974-A CASSETTE BOARD, COMPLETE
65
4-240-259-01 VOLUME SWING LEVER
66
4-235-989-01 VOLUME KNOB SPRING
67
4-240-262-01 CASS KEY (PAUSE)
68
4-240-263-01 CASS KEY (STOP/EJECT)
69
4-240-264-01 CASS KEY (FF)
70
4-240-265-01 CASS KEY (REW)
71
4-240-266-01 CASS KEY (PLAY)
72
4-240-267-01 CASS KEY (REC)
73
4-240-261-01 TUNING SWING KNOB
74
4-240-257-01 TUNING SWING SHAFT
75
4-240-276-01 TUNING KNOB SPRING
76
4-240-258-01 TUNING SWING LEVER
77
7-623-508-01 LUG, 3
80
1-796-190-11 DECK, MECH
#1
7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S
#2
7-685-647-14 SCREW +BVTP 3X10 TYPE2 SLIT
#6
7-685-504-19 SCREW +BTP 2X6 TYPE2 N-S
#10
7-685-533-19 SCREW +BTP 2.6X6 TYPE2 N-S
#13
7-685-854-04 SCREW +BVTT 2X8 (S)
Ver 1.1 2002.11
34
HCD-EP303
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
7-3. Front Panel Section -2
115
102
115
115
114
116
120
119
117
113
108
103
111
124
121 123
122
101
#4
#4
#4
#4
#4
#11
not supplied
not
supplied
LD621
101
4-235-995-01 RUBBER FOOT
102
4-240-273-01 FRONT PANEL (EXCEPT US,CND)
102
4-241-641-01 FRONT PANEL (US,CND)
103
A-4676-973-A HEADPHONE BOARD, COMPLETE (AEP, UK)
108
4-240-270-01 PLAY/STOP KNOB
111
A-4676-972-A DISPLY BOARD, COMPLETE (AEP, UK)
111
A-4729-804-A DISPLY BOARD, COMPLETE (US,CND)
111
A-4729-808-A DISPLY BOARD, COMPLETE
(EXCEPT US,CND,AEP,UK)
113
4-240-269-01 BASS/MENU KNOB
114
4-240-271-01 PRESET UP/DOWN KNOB
115
4-235-994-01 PANEL FIXING PLATE
116
4-240-268-01 DISPLAY/POWER KNOB
117
4-240-272-01 FUNCTION KNOB
119
4-240-277-01 LCD DIFFUSE SHEET
120
4-240-243-01 LCD LIGHT GUIDE
121
4-240-254-01 LCD BACKLITE HOLDER
122
4-240-252-01 REMOTE SENSOR HOLDER
123
4-240-253-01 TIMER LED HOLDER
124
4-240-248-01 MAIN PWB MOUNT ING BKT.B
LD621
1-804-496-11 DISPLAY PANEL, LIQUID CRYSTAL
#4
7-685-535-14 SCREW +BTP 2.6X10 TYPE2 N-S
#11
7-685-135-19 SCREW (+ PTPWH) (2.6X10)
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