Sony CMT-VC1 / HCD-VC1 Service Manual ▷ View online
HCD-VC1
16
16
5-3.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
ROTARY
ENCODER
RV801
VOLUME
RV801
JOG-A
JOG-B
21
20
36 – 34
KEY1 – 3
S801 – 820
50 – 53
COM0 – 3
LIQUID CRYSTAL
DISPLAY
LCD801
54 – 85
SEG0 – 31
REMOCON
3
REMOTE CONTROL
RECEIVER
IC802
LED DRIVE
Q855
DSG
D854
CD SYNC
D856
LED DRIVE
Q856
CD-SYNC
26
27
89
38
99
VDD
RESET
WP
RESET SIGNAL
GENERATOR
IC803
+5V
(ROTARY ENCODER)
D812
D811
B+ SWITCH
Q606, 607
Q605
B+ SWITCH
Q608, 609
CASSETTE HOLDER
BACK LIGHT
D802
D
REC/PB
(Page 15)
SYSTEM CONTROLLER
IC801 (2/2)
LED DRIVE
Q853
TAPE
D855
TC-ON 98
94
CD-ON
LED DRIVE
Q852
CD
D852
CD +5V
REGULATOR
Q306
B+
(CD +5V)
+10V
REGULATOR
Q305
CD +8V
REGULATOR
IC306
B+
(CD +8V)
B+
(FM +7.5V)
+9V
REGULATOR
Q301
FM +7.5V
REGULATOR
Q302
B+
(+9.5V)
B+
(COM +12V)
7
REG-CON
RECT
D906 – 909
RECT
D902 – 905
COM +8V
REGULATOR
IC304
COM +12V
REGULATOR
Q355
B+
(COM +8V)
LED B+
SWITCH
Q661, 662
LED B+
(+8V)
T902
MAIN
TRANSFORMER
RELAY
DRIVE
Q902
B+
(+14V)
B –
( – 14V)
B+
(+22.5V)
B –
( – 22.5V)
POWER AMP
(IC101, 201)
COM – 8V
REGULATOR
IC302
B –
( COM – 8V)
REG CON
C
(Page 15)
B
RY901
A
D917
D310
B+ SWITCH
Q608, 609
B+ SWITCH
Q901
RECT
D910 – 913
RELAY +5V
REGULATOR
IC301
T901
SUB
TRANSFORMER
WAKE UP
SWITCH
Q890, 891
D801
D S G
D866 – 869
(LCD BACK LIGHT)
37
SIMUKE/TEST
REGULATOR
CONTROL
SWITCH
Q303, 304
REGULATOR
CONTROL
SWITCH
Q307, 308
B+
(+5V, RELAY +5V)
230V
115V
COM
230V
115V
COM
F905
-2
-1
VOLTAGE
SELECTOR
S901
220 – 240V
110 – 120V
15
(PCB-LED)
LED DRIVE
Q856
LED DRIVE
Q859
PBC
D860
31
(FM-ON)
F902
F901
(EXCEPT TH)
(EXCEPT TH)
(TH)
(EXCEPT TH)
(EXCEPT TH)
(TH)
(TH)
LF901
• Abbreviation
TH : Thailand model
TH : Thailand model
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)
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