Sony CMT-M90DVD / HCD-M90 Service Manual ▷ View online
HCD-M90
33
33
6-5.
BLOCK DIAGRAM – AUDIO Section –
: TAPE PLAY
: REC
: TUNER (FM/AM)
: DVD/CD PLAY (AUDIO)
87
88
86
89
STK MUTE
50
H/P DETECT
81
LINE MUTE
K
TU-L
(Page 32)
L
TC-L
(Page 32)
J
DVD-L
(Page 31)
M
REC-L
(Page 32)
INPUT SELECT SWITCH,
ELECTRICAL VOLUME,
TONE CONTROL
POWER ON
MUTING
Q330
MUTING
CONTROL SWITCH
Q312, 313
3
COM +12V
D309
MUTING
Q408, 409
MUTING
Q100
4
10
14
+
+
–
–
SJ301
L
R
SPEAKER
IMPEDANCE
USE 6 – 16Ω
R-CH
R-CH
J301
HEADPHONE AMP
IC324
MOS GAIN &
LEVEL SHIFT
LEVEL SHIFT
ING STAGE
MOS
OUTPUT
STAGE
SHORT
CIRCUIT
PROTECTION
IN+
IN+
MUT
MUT
STANDBY/MUTE
MUTE
STBY
POWER AMP
IC101 (SUFFIX-14) IC101 (SUFFIX-16)
R-CH
OUT
R-CH
R-CH
DC DETECT
Q310, 311
PHONES
100
DC DETECT
R-CH
INPUT
SELECT
SWITCH
L4
L3
L1
L2
11
12
14
13
9
LIN
10
LSELO
5
LOUT
VOLUME
CONTROL
TONE
CONTROL
30
1
DI
CL
2
CE
CPU
INTERFACE
R-CH
SJ302
L
R
AUDIO IN
MD (VIDEO)
9
R-CH
VOL-SDA
AMP SCK
AMP CE
84
STK PWR
SYSTEM CONTROLLER
IC306 (3/4) (SUFFIX-11) IC306 (3/4) (SUFFIX-12)
8
10
4
9
11
3
INVERTER
12
2
13
1
SIGNAL PATH
: MD (VIDEO)
R-CH : R-ch is omitted due to same as L-ch.
IC323 (SUFFIX-14)
IC323 (SUFFIX-16)
IC324 (SUFFIX-14)
IC324 (SUFFIX-16)
IC302 (1/2) (SUFFIX-11)
IC302 (1/2) (SUFFIX-12)
INVERTER
IC302 (2/2) (SUFFIX-11)
IC302 (2/2) (SUFFIX-12)
HCD-M90
34
34
36 – 34
KEY1 – KEY3
LIQUID CRYSTAL
DISPLAY
LCD802
SIRCS
4
12
RESET
RESET SIGNAL
GENERATOR
IC602
D333
D620
SYSTEM CONTROLLER
D814
(STANDBY)
LED DRIVE
Q809
CD-SYNC
LED
LED
47
STAND-BY LED
42
LED DRIVE
Q807
DSG-LED
45
LED DRIVE
Q806
TUNER
D810
TU-LED
49
LED DRIVE
Q805
DVD
D809
CD-LED
96
D/A CONVERTER
B+
B+
SWITCH
Q302
+9.5V
REGULATOR
Q301
82
STBY RLY
RECT
D906 – 909
RELAY DRIVE
Q902
RECT
D902 – 905
+12V
REGULATOR
Q355
+4V
REGULATOR
IC904
TUNER ON
SWITCH
Q303, 304
AMP +16V
AMP – 16V
D921
RECT
D910 – 913
D804 – 806
(LCD BACK LIGHT)
TU +9.5V
COM +8V
COM +12V
40
TUNER ON
65
SYSPWR
SW +3.3V
U-COM +3.3V
T902
MAIN POWER
TRANSFORMER
T901
SUB POWER
TRANSFORMER
RY901
(Singapore)
(EXCEPT Singapore)
(AC IN)
VOLTAGE
SELECTOR
S901
BACKUP +4V
S801 – 820
10
11
X801
32.768KHz
15
13
X802
16MHz
XCIN
XCOUT
XIN
XOUT
POWER ON/OFF
RELAY DRIVE
Q902
TC +3.3V
+3.3V
REGULATOR
Q309
+8V
REGULATOR
IC304
LCD STB 6
LCD RS 3
LCD DATA 5
LCD SCK 7
20
AC CUT
REMOTE CONTROL
RECEIVER
IC802
D919, 920
D622
RESET SWITCH
Q619
RESET SWITCH
Q618
D604
B+ SWITCH
Q635, 637
LED B+
+14V
+5V
REGULATOR
IC614
D+5V
A+3.3V
SERVO DSP
+3.3V
AV DECODER
+3.3V REGULATOR
IC301
+3.3V REGULATOR
IC502
D+3.3V
+1.8V
SERVO DSP,
AV DECODER
+1.8V
AV DECODER
+1.8V REGULATOR
IC006
M+12V
+1.8V REGULATOR
IC501
+4V
REGULATOR
IC605
COM +5V
COM +3.3V
+5V
REGULATOR
IC902
+3.3V
REGULATOR
IC903
+12V
REGULATOR
IC901
+12V
REGULATOR
IC901
POWER SWITCH
Q904
RECT
D914 – 917
74
POWER KEY
S803
51
BACK LIGHT
LED DRIVE
Q808
TAPE
D812
TC-LED
46
CD SYNCHRO
D813
DSG
D811
D602
IC802 (SUFFIX-11)
IC802 (SUFFIX-12)
IC306 (4/4) (SUFFIX-11)
IC306 (4/4) (SUFFIX-12)
LED DRIVE
Q811
LED DRIVE
Q812, 813
IC602 (SUFFIX-11)
IC602 (SUFFIX-12)
IC605 (SUFFIX-11)
IC605 (SUFFIX-12)
IC614 (SUFFIX-11)
IC614 (SUFFIX-12)
IC304 (SUFFIX-14)
IC304 (SUFFIX-16)
IC904 (SUFFIX-11)
IC904 (SUFFIX-12, -21)
IC301 (SUFFIX-21) IC301 (SUFFIX-22)
IC502 (SUFFIX-21) IC502 (SUFFIX-22)
IC006 (SUFFIX-21) IC006 (SUFFIX-22)
IC501 (SUFFIX-21) IC501 (SUFFIX-22)
IC902 (SUFFIX-11)
IC902 (SUFFIX-12, -21)
IC903 (SUFFIX-11)
IC903 (SUFFIX-12, -21)
IC901 (SUFFIX-11)
IC901 (SUFFIX-12, -21)
(SUFFIX-12)
6-6.
BLOCK DIAGRAM – KEY CONTROL/POWER SUPPLY Section –
Ver 1.3
HCD-M90
35
35
TC board
CONTROL board
RF-240 board
DAC board
DVD board
LOADING board
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
6-7.
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)
E
: TAPE PLAY
a
: REC
c
: DVD PLAY
J
: CD PLAY
F
: DVD/CD PLAY (AUDIO)
L
: DVD/CD PLAY (VIDEO)
g
: DVD/CD PLAY (DIGITAL OUT)
j
: MD (VIDEO)
• Abbreviation
AUS
: Australian model
CH
: Chinese model
CND : Canadian model
SP
SP
: Singapore model
C
B
These are omitted.
E
Q
• Circuit Boards Location
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
• DVD board is multi-layer board.
However, the patterns of intermediate-layer not been included in
diagram.
diagram.
• Indication of transistor.
JACK board
SWITCH board
POWER board
VIDEO board
MAIN board
Ver 1.3
HCD-M90
36
36
A
DVD
BOARD
CN010
B
DVD
BOARD
CN009
A
B
C
D
1
2
3
4
5
6
7
8
IC001
OPTICAL PICK-UP
BLOCK
(KHM-240AAA) (TYPE A)
(KHM-270AAA) (TYPE B)
(KHM-270AAA) (TYPE B)
6-8.
PRINTED WIRING BOARD – RF-240 Board (Suffix-11) –
•
See page 35 for Circuit Boards Location.
•
Refer to servicing notes (page 8) for discrimination of TYPE A/B.
(Page 40)
(Page 40)
• Semiconductor
Location
Ref. No.
Location
D001
D-2
D004
D-3
IC001
B-3
Q001
D-3
Q002
D-3
Ver 1.3
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