Sony SDM-X52 Service Manual ▷ View online
SDM-X52 (E) 3-3
3-3. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS
•
Divided circuit diagram
One sheet of A board are circuit diagram is divided into five sheets,
each having the code A-
a
to A-
g
. For example, the destination
ab1 on the code A-
a
sheet is connected to ab1 on the A-
b
sheet.
a b 1
Ref. No.
Circuit diagram division code
Note:
•
All capacitors are in
µ
F unless otherwise noted. (pF:
µµ
F)
Capacitors without voltage indication are all 50 V.
•
Indication of resistance, which does not have one for rating electrical
power, is as follows.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP : 1/10 W)
• All resistors are in ohms.
•
: nonflammable resistor.
•
: fusible resistor.
•
∆
: internal component.
•
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
•
: earth-ground.
•
: earth-chassis.
• When replacing the part in below table, be sure to perform the related
adjustment.
• All voltages are in V.
• Readings are taken with a 10 M
Ω
digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production tolerances.
•
*
: Can not be measured.
• Circled numbers are waveform references.
•
: B + bus.
•
: B – bus.
Note: The components identified by shading and
mark
!
are critical for safety. Replace only
with part number specified.
Note: Les composants identifiés par un tramé et
une marque
!
sont critiques pour la
sécurité. Ne les remplacer que par une pièce
portant le numéro spécifié.
portant le numéro spécifié.
SDM-X52(E) 3-4
1
A
B
C
D
E
F
G
H
I
K
J
2
12
13
11
10
9
8
7
6
5
4
3
14
15
(1) Schematic Diagrams of A (
a
,
b
,
c
,
d
,
e
) Board
•
Divided circuit diagram
One sheet of A board are circuit diagram is divided into five sheets,
each having the code A-
a
to A-
g
. For example, the destination
ab1 on the code A-
a
sheet is connected to ab1 on the A-
b
sheet.
a b 1
Ref. No.
Circuit diagram division code
+5V
+5V
+5V
ac10
ac12
ac25
ac13
ad8
SW
EEPROM
EEPROM
ad9
ad16
ad14
ac11
ad19
ad20
ad21
TO
I BOARD
CN1
I BOARD
CN1
TO DISPLAY
ad17
ac15
acd18
ad5
ac6
ac3
ac4
ac1
ac2
A-
a
(INTERFACE)
B-SS3625<J..> - A..-P1
R235
SDM-X52(E) 3-5
1
A
B
C
D
E
F
G
H
I
K
J
2
12
13
11
10
9
8
7
6
5
4
3
14
15
A
-
b
(POWER SUPPLY)
B-SS3625<J..> - A..-P1
+5V
+5V
+3.3V
+5V
+5V
+5V
b d 2 3
b d 2 2
POWER
+3.3V REG
+3.3V REG
+3.3V
+2.5V
+2.5V REG
+2.5V REG
+2.5V
TO
G BOARD
CN271
G BOARD
CN271
+12V
+12V
+5V
+12V
+5V
+5V
+5V REG
+5V REG
+5V
+5V
+3.3V
+3.3V REG
0
0
•
Divided circuit diagram
One sheet of A board are circuit diagram is divided into five sheets,
each having the code A-
a
to A-
g
. For example, the destination
ab1 on the code A-
a
sheet is connected to ab1 on the A-
b
sheet.
a b 1
Ref. No.
Circuit diagram division code
SDM-X52(E) 3-6
1
A
B
C
D
E
F
G
H
I
K
J
2
12
13
11
10
9
8
7
6
5
4
3
14
15
A
-
C
(SCALER)
B-SS3625<J..> - A..-P3
+3.3V
+2.5V
+2.5V
+2.5V
+3.3V
+3.3V
+3.3V
+2.5V
+3.3V
+2.5V
+3.3V
a c 2 5
a c 1 1
a c 1 0
a c 1 2
a c 1 5
a c 6
a c 4
a c d 1 8
a c 2
a c 1
a c 3
a c 1 3
IC401
GM5010
SCALEA
c d 2 4
•
Divided circuit diagram
One sheet of A board are circuit diagram is divided into five sheets,
each having the code A-
a
to A-
g
. For example, the destination
ab1 on the code A-
a
sheet is connected to ab1 on the A-
b
sheet.
a b 1
Ref. No.
Circuit diagram division code
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