Sony CMT-DC1 / HCD-DC1 Service Manual ▷ View online
HCD-DC1
17
17
6-3.
BLOCK DIAGRAM – DISPLAY/POWER SUPPLY Section –
ROTARY
ENCODER
RV801
VOLUME
RV801
JOG A
JOG B
21
20
36
–
34
KEY1
–
3
S801 – 816
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 16)
SYSTEM CONTROLLER
IC801 (2/2)
LED DRIVE
Q853
Y
D855
TC ON 98
94
CD ON
LED DRIVE
Q852
u
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
(Page 16)
FM ON
C
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)
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 16)
B
D917
D310
B+ SWITCH
Q608, 609
B+ SWITCH
Q901
RECT
D910 – 913
RELAY +5V
REGULATOR
IC301
WAKE UP
SWITCH
Q890, 891
D801
D S G
D866 – 869
(LCD BACK LIGHT)
37
SIMUKE/TEST
B+ (+5V)
REGULATOR
CONTROL
SWITCH
Q303, 304
REGULATOR
CONTROL
SWITCH
Q307, 308
B+
(+5V, RELAY +5V)
(TAPE)
(CD)
T902
MAIN
TRANSFORMER
RELAY
DRIVE
Q902
RY901
AC IN
T901
SUB
TRANSFORMER
F905
-2
-1
VOLTAGE
SELECTOR
S901
220 – 240V
110 – 120V
F902
F901
(HK, MY, SP)
(HK, MY, SP)
(EXCEPT HK, MY, SP)
(HK, MY, SP)
(HK, MY, SP)
(AEP, UK)
(EXCEPT US, CND, MX)
(EXCEPT US, CND, MX)
(EXCEPT US, CND, MX)
(US, CND, MX)
LF901
US, CND
MX
• Abbreviation
CND: Canadian model
HK : Hong Kong model
MX : Mexican model
MY : Malaysia model
SP : Singapore model
CND: Canadian model
HK : Hong Kong model
MX : Mexican model
MY : Malaysia model
SP : Singapore model
Ver 1.1
HCD-DC1
18
18
6-4.
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)
c
: CD PLAY (DIGITAL)
• Abbreviation
CND : Canadian model
HK
HK
: Hong Kong model
MX
: Mexican model
MY
: Malaysia model
SP
: Singapore 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
• Abbreviation
CND : Canadian model
HK
HK
: Hong Kong model
MX
: Mexican model
MY
: Malaysia model
SP
: Singapore model
Ver 1.1
POWER board
CD board
LOADING board
HCD-DC1
19
19
5.4 Vp-p
4.19 MHz
51.2 Vp-p
12
µ
s
44 Vp-p
11.9
µ
s
6
IC101
w;
(SCOR) (CD Play Mode)
Approx.
200 mVp-p
200 mVp-p
• Waveforms
– CD Board –
– CD Board –
1
IC103
qh
(RFO) (CD Play Mode)
2
IC103
qf
(FE) (CD Play Mode)
3
IC103
qd
(TE) (CD Play Mode)
4
IC101
qg
(WFCK)
5
IC101
qj
(XPCK)
7
IC101
yh
(XTAI)
2
REC/PB (REC Mode)
1.2
±
0.1 Vp-p
Approx.
380 mVp-p
380 mVp-p
5.1 Vp-p
136
µ
s
5.9 Vp-p
230 ns
13.2 ms
5 V
3 Vp-p
16.9344 MHz
– TC Board –
1
ERASE Head (REC Mode)
– MAIN Board –
1
IC801
el
(EXTAL1)
2
IC801
os
(TX)
4
IC804
qh
(RCLK) (FM Mode)
3
IC804
qd
(XI) (FM Mode)
5.4 Vp-p
32.768 kHz
5 Vp-p
840
µ
s
2.4 Vp-p
4.332 MHz
HCD-DC1
20
20
(LIMIT)
28
15
1
14
E
12
13
1
24
40
60
61
80
21
20
41
TP (RF)
(SPINDLE)
M
(SLED)
M
TP
(VC)
1-680-693-
11
(11)
A
MAIN BOARD
CN101
OPTICAL
PICK-UP
BLOCK
(KSM-213D)
CD BOARD
A
B
C
D
1
2
3
4
IC101
C-3
IC102
B-3
IC103
C-2
Q101
B-2
6-5.
PRINTED WIRING BOARD – CD Board –
•
See page 18 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
(Page 27)
Click on the first or last page to see other CMT-DC1 / HCD-DC1 service manuals if exist.