Sony CMT-M80V / HCD-M80 Service Manual ▷ View online
HCD-M80
21
21
6-6.
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.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
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 (FM/AM)
J
: CD PLAY (AUDIO)
L
: CD PLAY (VIDEO)
E
: TAPE PLAY
a
: REC
j
: MD (VIDEO)
N
: MIC INPUT
• Abbreviation
EA
: Saudi Arabia model
SP
: Singapore model
TH
: Thai model
• Circuit Boards Location
C
B
These are omitted.
E
Q
• VMP board is multi-layer printed board.
However, the patterns of intermediate-layer have not been
included in diagram.
included in diagram.
• Indication of transistor.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
JACK board
SWITCH board
POWER board
VIDEO board
MAIN board
TC board
CONTROL board
VMP board (VMP41)
BD board
LOADING board
HCD-M80
22
22
6-7.
PRINTED WIRING BOARD – BD Board –
•
See page 21 for Circuit Boards Location.
IC102
IC103
30
16
1
15
M
(SPINDLE)
(COMPONENT SIDE)
BD BOARD
(CONDUCTOR SIDE)
BD BOARD
E
D101
E
OPTICAL
PICK-UP
BLOCK
(A-MAX. 3)
M
(SLED)
TP68
(FE)
TP70
(TE)
TP72
(RFAC)
TP71
(RFDC)
TP73
(DVC)
A
VMP
BOARD
CN101
1-684-174-
12
(12)
1-684-174-
12
(12)
(Page 28)
HCD-M80
23
23
6-8.
SCHEMATIC DIAGRAM – BD Board –
•
See page 38 for Waveforms.
•
See page 40 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
R152
R112
TP55
TP56
TP57
TP59
TP58
TP60
TP61
TP62
TP63
TP64
TP65
TP66
TP67
TP68
TP69
TP70
TP71
TP72
TP73
TP74
TP75
TP76
TP77
TP78
TP79
TP80
R234
R236
R151
C151
R179
C164
C163
C166
C182
R176
R102
R105
R103
TP21
Q102
C117
C115
TP27
R111
R104
R227
C107
R120
R117
R114
R229
R113
TP49
C112
C109
R231
C120
R126
R125
TP23
TP24
R228
C111
C108
R118
C110
C113
R122
TP22
Q101
C114
C119
C118
TP52
TP50
TP53
TP51
C165
C153
C103
C101
R235
C213
CN101
TP26
TP25
TP54
IC103
CN102
M102
M101
D101
C102
C104
R109
R124
R123
IC102
4.7k
0
0
1k
100k
0.022
10k
0.1
100
10V
10V
0.1
100
10V
10V
0
15k
1k
100k
UN2111-TX
0.1
47
6.3V
120k
15k
100k
33p
120k
47k
47k
2.2k
2.7k
47
4V
4V
0.1
1k
47
4V
4V
33k
33k
470k
47
4V
4V
0.1
0
0.1
100
4V
100k
2SB710A-RT
0.001
1
1
10
16V
0.1
470p
470p
1k
0
28P
CXA2581N-T
16P
1SS355
0.1
0.0033
100k
10
10
AN41020A
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
BB1
BB2
BB3
BB4
BB5
BB6
BB1
BB2
BB3
BB4
BB5
BB6
BB7
BB8
BB7
BB8
CC1
CC1
CC2
CC3
CC4
CC5
CC2
CC3
CC4
CC5
MGND
MGND
7V
MDP
STBY
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
SSTP
RFDC
RFAC
TE
SE
FE
GND
DVC
CTRL
D/A1
D/A2
D/A3
LD ON(D/A4)
VCC
T-
T+
F+
F-
LD
GND
PD2
PD1
PD
VC
SW
VCC
LD_GND
I1-6
I5-10
LD GND
GND
VCC(4.5V)
DVCC(2.5V)
LD
PD
A
B
C
D
F
E
EQ_IN
AC_SUM
GND
SW
DVCC
DVC
RFAC
FE
FEI
TE
TE_BAL
CE
CEI
VCC
RFG
BST
VFC
RFC
VC
RFDCO
RFDCI
DC_OFST
PGND2
PGND2
NC
NC
STBY
NC
NC
PVCC2
NC
NC
PVCC2
IN3-
IN3+
SVCC
SGND
IN2-
IN2+
IN1-
IN1+
PVCC1
PVCC1
NC
VO1+
NC
NC
NC
VO1-
PGND1
PGND1
NC(VDD)
NC(BC1)
NC
NC(SW)
NC(CT)
NC(BC2)
NC(BC4)
NC(BC3)
NC(FB)
OPO3(NC)
OPO2(NC)
OPO1(NC)
IN4R
VREF
OP-
OP+
OP.O
VO3+
VO3-
VO4-
VO4+
VO2+
VO2-
NC
(VPUMP1)
2(NC)
PVCC/
NC
(VPUMP2)
(CHASSIS)
IN4
ABS
(SLED)
(SPINDLE)
(FE)
(TE)
(RFDC)
(RFAC)
(DVC)
FREQUENCY
SELECT
SWITCH
RF AMP,
FOCUS/TRACKING
ERROR AMP
AUTOMATIC
POWER
CONTROL
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
VMP BOARD
(1/2)
CN101
(Page 26)
HCD-M80
24
24
6-9.
PRINTED WIRING BOARD – TC Board –
•
See page 21 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
IC401
C-4
Q100
D-2
Q101
D-3
Q200
D-4
Q201
D-4
Q401
D-2
Q402
D-2
Q403
B-3
Q404
C-3
Q405
C-3
IC401
1
10
11
20
30
21
31
40
TC BOARD
1-684-172-
(32)
E
C
B
E
C
B
E
C
B
E
C
B
1
2
7
8
TAPE DECK BLOCK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
B
MAIN BOARD
CN301
HEAD
RELAY
BOARD
HRPE901
(RECORD/PLAYBACK/ERASE)
L-CH
R-CH
ERASE
(CHASSIS)
A
1
3
A
B
C
D
E
1
2
3
4
5
32
(Page 29)
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