Schematic Diagrams And Printed Wiring Boards - Sony KE-42TS2E Service Manual

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3-3. 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.
T
: internal component.
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
: earth-ground.
: earth-chassis.
[
• The components identified by
in this basic schematic diagram have
been carefully factory-selected for each set in order to satisfy regulations
regarding X-ray radiation.
Should replacement be required, replace only with the value originally
used.
• When replacing components identified by
adjustments indicated. (See page 2-1)
• 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.
: 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.
• Divided circuit diagram
One sheet of B and Q boards are circuit diagram is divided into three sheets,
each having the code B-a to B-c. For example, the destination
ab1 on the code B-a sheet is connected to ab1 on the B-b sheet.
a b 1
Ref. No.
Circuit diagram division code
]
, make the necessary
Terminal name of semiconductors in silk screen
printed circuit (
)
*
Device
Printed symbol
Terminal name
Collector
1
Transistor
Base
Emitter
Collector
2
Transistor
Base
Emitter
Cathode
3
Diode
Anode
Cathode
4
Diode
Anode
(NC)
Cathode
5
Diode
Anode
(NC)
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
!™
Diode
Anode
Anode
Cathode
Anode
Source
Transistor
Drain
(FET)
Gate
Source
Transistor
Drain
(FET)
Gate
Source
Transistor
!∞
Drain
(FET)
Gate
Emitter
Transistor
Collector
Base
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
KE-42TS2E(AEP/UK)
Circuit
D
D
G
G
S
S
D
D
G
G
S
S
Ver.1.6
3-6

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