DOWNLOAD Sony HCD-EC50 Service Manual ↓ Size: 5 MB | Pages: 53 in PDF or view online for FREE

Model
HCD-EC50
Pages
53
Size
5 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-ec50.pdf
Date

Sony HCD-EC50 Service Manual ▷ View online

37
HCD-EC50
Pin No.
Pin Name
I/O
Description
48
P73/AN11/SI2
I
Signal input from the volume encoder
49
P74/SDA/SC2
I
Data transfer request signal input from the MP3 decoder
50
P75/SCL/SO2
I
Acknowledge signal input from the MP3 decoder
51
MD2
I
Input pin for selecting operation mode
52
MD1
I
Input pin for selecting operation mode (Connected to +3.3V)
53
MD0
I
Input pin for selecting operation mode
54
RSTX
I
System reset signal input terminal
55
V0/P80
O
Tuner chip enable signal output to the tuner
56
V1/P81
O
Clock signal output to the tuner
57
V2/P82
O
Data output to the the tuner
58
V3
I
Referrence power terminal of LCD controller/driver
59, 60
COM0, COM1
O
Common signal output to the LCD
61, 62
P83/COM2, P84/COM3
O
Common signal output to the LCD
63, 64
SEG0, SEG1
O
Segment signalL output to the LCD
65
VCC
Power supply terminal (+3.3V)
66
VSS
Grounnd terminal
67 to 84
SEG2 to SEG19
O
Segment signal output to the LCD
85 to 89 SEG20/P10 to SEG24/P14
O
Segment signal output to the LCD
90
VCC
Power supply terminal (+3.3V)
91
VSS
Grounnd terminal
92
X1
I
Resonator input terminal (4.19MHz)
93
X0
O
Resonator output terminal (4.19MHz)
94 to 96 SEG25/P15 to SEG27/P17
O
Segment signal output to the LCD
97 to 100 SEG28/P20 to SEG31/P23
O
Segment signal output to the LCD
38
HCD-EC50
2
2-649-133-41 CABINET, REAR (KR, AUS)
3
2-649-130-11 PANEL (R), SIDE (EXCEPT US)
3
2-649-130-21 PANEL (R), SIDE (US)
4
3-254-143-11 SCREW (B3), (+) BV TAPPING
5
3-363-099-32 SCREW (CASE 3 TP2)
6
2-667-661-01 SHEET (REAR COVER) (AEP, UK, CET, KR)
#1
7-685-247-14 SCREW +KTP 3X10 TYPE2 NON-SLIT
SECTION 7
EXPLODED VIEWS
NOTE:
-XX and -X mean standardized parts, so they
may have some difference 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.
The mechanical parts with no reference
number in the exploded views are not supplied.
Abbreviation
AUS
: Australian model
CET
: East Europian and Russian models
CND
: Canadian model
E3
: 240V AC area in E model
KR
: Korean model
SP
: Singapore model
Ref. No.
Part No.
Description
Remark
1
2-649-129-11 PANEL (L), SIDE (EXCEPT US)
1
2-649-129-21 PANEL (L), SIDE (US)
2
2-649-133-01 CABINET, REAR (US)
2
2-649-133-52 CABINET, REAR (CND)
2
2-649-133-21 CABINET, REAR (E3, SP)
2
2-649-133-31 CABINET, REAR (AEP, UK, CET)
7-1.
OVERALL SECTION
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.
Ref. No.
Part No.
Description
Remark
A
A
B
B
C
C
3
2
4
4
4
4
5
4
4
4
4
4
4
6
5
front panel
section
chassis section, CD section and 
Base unit (BU-K6BD83S-WOD) section 
top section
#1
#1
1
4
6
Ver. 1.4
39
HCD-EC50
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
2-649-118-11 CABINET, FRONT (EXCEPT US)
51
2-649-118-21 CABINET, FRONT (US)
53
2-649-123-01 BUTTON (EQ)
54
2-649-126-01 KNOB (VOL)
55
2-649-119-01 WINDOW (DISPLAY)
56
2-649-122-01 BUTTON (OPE)
57
2-649-124-01 BUTTON (DISC)
58
2-649-120-01 REFLECTOR (POWER)
59
2-649-121-01 BUTTON (POWER)
60
2-649-648-01 BUTTON (DSGX)
7-2.
FRONT PANEL SECTION
61
1-824-048-21 WIRE (FLAT TYPE) (27 CORE)
62
A-1144-849-A PANEL BOARD, COMPLETE (US, CND)
62
A-1169-449-A PANEL BOARD, COMPLETE (E3, SP, AUS)
62
A-1169-450-A PANEL BOARD, COMPLETE (AEP, UK, CET)
62
A-1183-181-A PANEL BOARD, COMPLETE (KR)
63
A-1144-828-A JACK BOARD, COMPLETE
64
4-951-620-01 SCREW (2.6X8), +BVTP
65
4-225-252-01 CUSHION (FOOT)
56
54
59
51
63
64
55
57
65
65
64
61
58
53
64
62
60
not
supplied
including 
No.59
Ver. 1.3
40
HCD-EC50
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
7-3.
CHASSIS SECTION
101
2-649-153-31 CHASSIS (MAIN MOLD) (US)
101
2-649-153-11 CHASSIS (MAIN MOLD) (CND)
101
2-649-153-21 CHASSIS (MAIN MOLD)
(AEP, UK, CET, SP, KR, AUS)
101
2-649-153-41 CHASSIS (MAIN MOLD) (E3)
102
3-254-143-11 SCREW (B3), (+) BV TAPPING
103
1-828-974-21 WIRE (FLAT TYPE) (13 CORE)
104
2-649-127-01 PANEL, TRAY
105
1-828-643-21 WIRE (FLAT TYPE) (23 CORE)
106
3-905-609-31 SCREW (TRANSISTOR)
107
A-1144-848-A MAIN BOARD, COMPLETE (US, CND)
107
A-1169-435-A MAIN BOARD, COMPLETE (E3, SP, AUS)
107
A-1169-436-A MAIN BOARD, COMPLETE (AEP, UK, CET)
107
A-1181-748-A MAIN BOARD, COMPLETE (KR)
108
4-900-386-01 SCREW
109
A-1144-825-A PT BOARD, COMPLETE (US, CND)
109
A-1169-506-A PT BOARD, COMPLETE (E3, SP)
109
A-1169-507-A PT BOARD, COMPLETE (AUS)
109
A-1169-540-A PT BOARD, COMPLETE (AEP, UK, CET)
109
A-1181-750-A PT BOARD, COMPLETE (KR)
110
A-1146-444-A TRANSISTOR BOARD, COMPLETE
111
X-2102-477-1 HEAT SINK ASSY (US, CND, AEP, UK, CET)
111
X-2108-555-1 HEAT SINK ASSY (50W SP2) (E3, SP, KR, AUS)
112
A-1144-850-A AMP BOARD, COMPLETE (US, CND)
112
A-1171-961-A AMP BOARD, COMPLETE (AEP, UK, CET)
112
A-1175-788-A AMP BOARD, COMPLETE (E3, SP, KR, AUS)
113
2-671-683-01 HOLDER (FAN50) (E3, SP, KR, AUS)
114
1-500-868-11 CORE, FERRITE (AEP, UK, CET, KR)
115
3-701-748-00 CLAMP
0 ACW001 1-769-079-51 CORD, POWER (KR)
0 ACW001 1-775-790-81 CORD, POWER (AUS)
0 ACW001 1-790-757-51 CORD, POWER (US, CND)
0 ACW001 1-830-891-11 CORD, POWER (UK)
0 ACW001 1-831-370-11 CORD, POWER (AEP, CET, SP)
0 ACW001 1-832-377-11 CORD, POWER (E3)
M901
1-787-396-11 D.C. FAN (50 SQUARE) (E3, SP, KR, AUS)
0 PT001
1-443-845-11 TRANSFORMER, POWER (US, CND)
0 PT001
1-443-910-11 TRANSFORMER, POWER (AEP, UK, CET)
0 PT001
1-443-911-11 TRANSFORMER, POWER (E3, SP, KR, AUS)
#3
7-685-661-14 SCREW +BVTP 4X12 TYPE2 IT-3
#4
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
101
102
102
103
104
105
102
102
102
107
102
102
108
109
111
102
110
102
112
106
114
115
not
supplied
PT001
not
supplied
not
supplied
not
supplied
not
supplied
not
supplied
CD section and Base unit 
(BU-K6BD83S-WOD) section 
#3
#4
#3
ACW001
M901
102
113
102
Ver. 1.4
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