Sony HCD-MD595 Service Manual ▷ View online
HCD-MD595
54
54
6-4.
BLOCK DIAGRAM – DISPLAY, POWER SUPPLY Section –
49
93
68
69
46
47
31
34
7
8
14
13
85
–
87
52
–
57
LIQUID CRYSTAL
DISPLAY UNIT
LCD600
VOLUME
LED DRIVE
Q603
REMOTE CONTROL
RECEIVER
IC602
ROTARY
ENCODER
S601
LED DRIVE
Q604 – 606,
Q608 – 610
S602 – 618
D607 – 609
LCD BACK
LIGHT
D601 – 606
K
05
P.DOWN
+12V
REGULATOR
IC901
+7V
REGULATOR
IC903
+5.6V
REGULATOR
IC911
+5V
REGULATOR
IC914
+3.3V
REGULATOR
IC190
B+ SWITCH
Q1101, 1102
RECT
D982 – 985
RELAY DRIVE
Q991
RECT
D981
D981
RECT
D832
D832
D916, 917
D1102
D1103
D915
D912
D913
D924
D914
D923
D922
D941
BT921
D1109
+4V
REGULATOR
IC912
D918, 1108
+5V
REGULATOR
IC913
RESET
SIGNAL GENERTOR
IC941
RESET
SWITCH
Q941
T900
POWER
TRANSFORMER
(AC IN)
(AUS)
(US, CND,AEP, UK)
(AEP, UK, AUS) (US, CND)
RY991
LCD ON/OFF
SWITCH
Q601, 602
RECT
D971 – 974
RECT
D992, 993
T901
POWER
TRANSFORMER
+5.6V
REGULATOR
IC921
VOLTAGE SELECTOR
S991
220 – 240V
110 – 120V
(MY, SP, HK, JE)
DIMMER
SIRCS
ENC VOL A
ENC VOL B
LED MD-PAUSE
LED MD-PLAY
LED CD-PAUSE
LED CD-PLAY
LED MD-REC
LED STANDBY
LED MD-PLAY
LED CD-PAUSE
LED CD-PLAY
LED MD-REC
LED STANDBY
MD/CD POWER
LCD DATA
LCD CLK
LCD CE
LCD CLEAR
SDA
SCL
RW/CS
RS
KEY3
–
KEY1
TR RELAY
LCD ON/OFF
RESET
SYSTEM CONTROLLER
IC501 (2/2)
E
BDPWR
(Page 52)
•
Abbreviation
CD+12V
ST+12V
M+7V
D+3V
CD A+5V
D+5V
CD D+5V
CDM+5V
M+5V,
H+5V
H+5V
SYS +5V
LCD +5V
A +3.3V
SYS +3.3V
B.UP +3.3V
B.UP +2.7V
AMP B+
AMP B–
(Page 52)
AUS
CND
HK
JE
MY
SP
CND
HK
JE
MY
SP
: Australian model
: Canadian model
: Hong Kong model
: Tourist model
: Malaysia model
: Singapore model
: Canadian model
: Hong Kong model
: Tourist model
: Malaysia model
: Singapore model
55
55
6-5.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
(In addition to this, the necessary note is printed in each block)
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
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.
• Indication of transistor.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
%
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
• 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.
• Signal path.
F
: TUNER
J
: CD PLAY
E
: MD PLAY
j
: MD REC
q
: DIGITAL OPTICAL IN
d
: TAPE IN (PLAY)
G
: TAPE OUT (REC)
N
: ANALOG IN
• Abbreviation
AUS
: Australian model
CND : Canadian model
HK
HK
: Hong Kong model
JE
: Tourist model
KR
: Korean model
MY
: Malaysia model
SP
: Singapore model
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.
Printed wiring board of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
referring, because CD base unit is replaced as a block.
• Circuit Boards Location
PANEL board
MD DIGITAL board
POWER board
AMP board
SP board
TUNER PACK
RDS IC board
(AEP, UK models)
(AEP, UK models)
MAIN board
BD (MD) board
LOADING board
BD (CD) board
Schematic diagram of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
referring, because CD base unit is replaced as a block.
HCD-MD595
56
56
6-6.
PRINTED WIRING BOARD – BD (CD) Board –
•
See page 55 for Circuit Boards Location.
There are a few cases that the part isn't mounted in model
is printed on diagrams.
is printed on diagrams.
Printed wiring board of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
referring, because CD base unit is replaced as a block.
MD DIGITAL
BOARD
CN1002
(Page 65)
57
57
HCD-MD595
6-7.
SCHEMATIC DIAGRAM – BD (CD) Board –
•
See page 76 for waveforms.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD STOP
(
no mark : CD STOP
(
) : CD PLAY
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
Schematic diagram of BD (CD) board is shown only for
referring, because CD base unit is replaced as a block.
referring, because CD base unit is replaced as a block.
(Page
62)
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