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HCD-EC68P
Sony HCD-EC68P User Manual
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HCD-EC68P/EC78P
5
CAP
ACIT
OR DISCHARGE FOR ELECTRIC SHOCK PREVENTION
MAIN board
MAIN board
C626
C622
In checking the MAIN board, make a capacitor discharge
of C622 and C626 for electric shock prevention.
800
Ω
/2W
800
Ω
/2W
Model
Power V
oltage Indication
EC68P: US/EC78P:
US and Canadian models
AC 120 V
, 60 Hz
EC68P: Australian
model
AC 230 - 240 V
, 50/60 Hz
EC78P: UK model
AC 230 V
, 50/60 Hz
MODEL IDENTIFICA
TION
– Back Panel –
POWER
VOL
T
AGE
INDICA
TIO
N
4
6
Table of Contents
Default Chapter
1
Specifications
1
1 Servicing Notes
3
Table of Contents
3
2 General
6
Other Operations
7
Troubleshooting
7
Basic Operations
8
3 Disassembly
10
Disassembly Flow
10
Panel (Top)
11
Side Panel (L)/(R)
11
Front Panel Block (EC78P: UK)
12
MAIN Board
12
Back Panel Block
13
Front Panel Block (EC68P/EC78P: US, Canadian)
13
Base Unit (EC78P: UK)
14
CD Mechanism Block (EC78P: UK)
14
Base Unit (EC68P/EC78P: US, Canadian)
15
CD Mechanism Block (EC68P/EC78P: US, Canadian)
15
Belt (EC68P/EC78P: US, Canadian)
16
Belt (EC78P: UK)
16
OP Base Assy (KSM-213D)
17
4 Test Mode
18
5 Electrical Adjustments
22
Block Diagram - CD SERVO, TUNER Section
25
6 Diagrams
25
Block Diagram - MAIN Section
26
Printed Wiring Board - CD Board
28
Schematic Diagram - CD Board
29
Printed Wiring Boards - MAIN Section
30
Schematic Diagram - MAIN Section (1/3)
31
Schematic Diagram - MAIN Section (2/3)
32
Schematic Diagram - MAIN Section (3/3)
33
Printed Wiring Board - HI AMP Board (EC78P)
34
Schematic Diagram - HI AMP Board (EC78P)
34
Printed Wiring Board - LOW AMP Board
35
Schematic Diagram - LOW AMP Board
35
Printed Wiring Board - PANEL Board
36
Schematic Diagram - PANEL Board
37
Printed Wiring Boards - KEY Section
38
Schematic Diagram - KEY Section
38
Printed Wiring Board - MOTOR Board (EC68P/EC78P: US, Canadian Models)
39
Schematic Diagram - MOTOR Board (EC68P/EC78P: US, Canadian Models)
39
Printed Wiring Board - PT Board
40
Schematic Diagram - PT Board
41
7 Exploded Views
47
Panel Section
47
Front Panel Section
48
Chassis Section
49
Main Section
50
CD Mechanism Section (EC78P: UK) (CDM88A-K6BD90-WOD)
51
CD Mechanism Section (Except EC78P: UK) (CDM77B-K6BD90-WOD)
52
8 Electrical Parts List
53
4
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Sony HCD-EC68P Specifications
General
Brand
Sony
Model
HCD-EC68P
Category
Car Receiver
Language
English
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