Sony CMT-VC1 / HCD-VC1 Service Manual ▷ View online
HCD-VC1
17
17
5-4.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
W
: indicates side identified with part number.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER
E
: TAPE PLAY (DECK A)
d
: TAPE PLAY (DECK B)
G
: TAPE REC
J
: CD PLAY (ANALOG OUT)
c
: CD PLAY (DIGITAL OUT)
j
: MD
• Abbreviation
HK
: Hong Kong model
MY
: Malaysia model
SP
: Singapore model
TH
: Thailand model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
• Circuit Boards Location
TC board
LCD board
I/O SWITCH board
SWITCH board
HEADPHONE board
MAIN board
TUNER UNIT
POWER board
VIDEO board
CD board
LOADING board
MPEG board
HCD-VC1
18
18
5-5.
PRINTED WIRING BOARD – CD Board –
•
See page 17 for Circuit Boards Location.
CD BOARD
1
5
4
2
3
(CHASSIS)
24
TP
(VC)
TP
(RF)
TP (TE)
TP (FE)
1
2
S101
(LIMIT)
1-680-690-
11
(11)
M
M101
(SPINDLE)
M
M102
(SLED)
OPTICAL PICK-UP
BLOCK
KSS-213 DCP
A
VCD BLOCK (1/2)
A
B
C
D
1
2
3
4
5
TP
(GND)
TP
(FOK)
IC701
B-2
IC702
C-3
IC703
B-3
IC704
C-1
Q701
B-3
Q702
A-2
• Semiconductor
Location
Ref. No.
Location
(Page 24)
HCD-VC1
19
19
5-6.
SCHEMATIC DIAGRAM – CD Board –
•
See page 25 for Waveforms.
•
See page 32 for IC Block Diagrams.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
(Page
22)
HCD-VC1
20
20
5-7.
PRINTED WIRING BOARD – TC Board –
•
See page 17 for Circuit Boards Location.
TAPE DECK BLOCK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
B
MAIN BOARD
CN301
CASSETTE HOLDER
BACK LIGHT
2
HEAD
RELAY
BOARD
HRPE901
RECORD/PLAYBACK/ERASE
L-CH
R-CH
ERASE
1-681-239-
14
(14)
TC BOARD
8
17
A
B
C
D
E
1
2
3
4
5
C420
JW404
D401
A
K
(CHASSIS)
(CHASSIS)
(CHASSIS)
D401
D-2
IC401
D-4
IC402
D-4
Q401
D-2
Q402
D-2
Q403
D-2
Q406
C-5
Q407
C-4
Q413
D-3
Q414
C-4
• Semiconductor
Location
Ref. No.
Location
(Page 24)
Click on the first or last page to see other CMT-VC1 / HCD-VC1 service manuals if exist.