Circuit Boards Location; Display Unit (Pdm-6110); Media Receiver Unit (Mbt-Mr2); Schematic Diagrams And Printed Wiring Boards - Sony KE-MR31M2 Service Manual

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3-3. CIRCUIT BOARDS LOCATION

3-3-1. DISPLAY UNIT (PDM-6110)

G2 board
G1 board
F1 board
K2 board
R1 board

3-3-2. MEDIA RECEIVER UNIT (MBT-MR2)

BD board
MS2 board
M board
G board
H1 board
J2 board
H3 board
H2 board
R2 board
DEM board
K3 board
J1 board
A board
HM board

3-4. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS

Note:
All capacitors are in µF unless otherwise noted. (pF: µµF)
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 digital multimeter.
Readings are taken with a color-bar signal input.
Voltage variations may be noted due to normal production tolerances.
: Names and values of parts depend on models.
*
*
: Can not be measured.
Circled numbers are waveform references.
: B + bus.
: B – bus.
: Signal path.
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.
Terminal name of semiconductors in silk screen
printed circuit (
*
)
Device
Printed symbol
Terminal name
Circuit
Collector
1
Transistor
Base
Emitter
Collector
2
Transistor
Emitter
Base
3
Cathode
Diode
Anode
Cathode
4
Diode
Anode
(NC)
Cathode
5
Diode
(NC)
Anode
Common
6
Diode
Anode
Cathode
Common
7
Diode
Anode
Cathode
Common
8
Diode
Anode
Anode
Common
9
Diode
Anode
Anode
Common
0
Diode
Cathode
Cathode
Common
Diode
Cathode
Cathode
Anode
Cathode
!™
Anode
Diode
Anode
Anode
Cathode
Source
Transistor
Drain
(FET)
Gate
D
D
G
G
Source
Transistor
S
S
Drain
(FET)
Gate
D
D
Source
Transistor
!∞
Drain
G
G
(FET)
Gate
S
S
Emitter
Transistor
Collector
Base
C1
C2
C2
B1 E1
Transistor
B1
B2
E2
B2 C1
E1
E2
C1
B2 E2
!•
Transistor
C1
C2
E1
B1 C2
B1
B2
C1
B2 E2
E1
E2
Transistor
E1
B1 C2
E1
E2
C1
B2 E2
Transistor
B1
B2
E1
B1 C2
C1
C2
C1(B2)
C2
E2
B1 E1
Transistor
B1
C2
C1(B2)
E2
E2
E1(B2)
E2
(B2)
B1
E1
E2
@™
Transistor
B1
C1
C2
C1
C2
E1(B2)
C2
(B2)
E2
E1
B1
Transistor
B1
C2
C1
C1
C2
Discrete semiconductot
Ver.1.6
(Chip semiconductors that are not actually used are included.)
KE-MR61M2 (CH)
3-14

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