Schematic Diagrams And Printed Wiring Boards - Sony KP-EF41HK2 Service Manual

6-4. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS

Terminal name of semiconductors in silk screen
Note:
printed circuit ( * )
• All capacitors are in µF unless otherwise noted. (pF: µµF)
Capacitors without voltage indication are all 50 V.
Device Printed symbol Terminal name
• Indication of resistance, which does not have one for rating Collector
1 Transistor
electrical power, is as follows.
Base Emitter
Pitch: 5 mm Collector
2 Transistor
Rating electrical power 1/4 W (CHIP : 1/10 W) Base Emitter
• All resistors are in ohms. 3 Cathode
Diode
Anode
• : nonflammable resistor.
Cathode
• : fusible resistor.
4
Diode
• ¢ : internal component. (NC)
Anode
• : panel designation, and adjustment for repair. Cathode
5
Diode
• All variable and adjustable resistors have characteristic curve B,
Anode (NC)
unless otherwise noted.
Common
6
• : earth-ground. Diode
Anode Cathode
• : earth-chassis.
Common
• All voltages are in V.
7
Diode
• Readings are taken with a 10 M digital multimeter. Anode Cathode
Common
• Readings are taken with a color-bar signal input.
8
Diode
• Voltage variations may be noted due to normal production
Anode Anode
tolerances.
Common
9 Diode
• * : Can not be measured.
Anode Anode
• NO MARK: Common
Common
• < > : SECAM 0
Diode
Cathode
Cathode
• ( ) : NTSC 3.58 MHz
• Circled numbers are waveform references. Common
!¡
Diode
• : B + bus.
Cathode Cathode
• : B – bus. Anode Cathode
!™
÷ Diode Anode Anode
• : Signal path.
Cathode Anode
Source
Transistor
Reference information !£ Drain
(FET) Gate
RESISTOR : RN METAL FILM
Transistor Source
: RC SOLID !¢
Drain
(FET) Gate
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE Transistor Source
!∞
Drain
: RW NONFLAMMABLE WIREWOUND (FET) Gate
: RS NONFLAMMABLE METAL OXIDE Emitter
!§ Transistor Collector
: RB NONFLAMMABLE CEMENT
Base
COIL : LF-8L MICRO INDUCTOR
!¶ C2 B1 E1
Transistor
CAPACITOR : TA TANTALUM
E2 B2 C1
: PS STYROL
: PP POLYPROPYLENE !• C1 B2 E2
Transistor
E1 B1 C2
: PT MYLAR
: MPS METALIZED POLYESTER C1 B2 E2
!ª Transistor
: MPP METALIZED POLYPROPYLENE E1 B1 C2
: ALB BIPOLAR
C1 B2 E2
@º Transistor
: ALT HIGH TEMPERATURE
E1 B1 C2
: ALR HIGH RIPPLE
E2 B1 E1
@¡ Transistor
C2 C1(B2)
Note: The components identified by shading and mark
(B2)
@™ B1 E1 E2
Transistor
! are critical for safety. Replace only with part
C1 C2
number specified.
(B2)
E2 E1
@£ B1
Transistor
C2 C1
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
– 63 –
Circuit
D D
G G
S S
D D
G G
S S
C1 C2
B1 B2
E1 E2
C1 C2
B1 B2
E1 E2
E1 E2
B1 B2
C1 C2
C1(B2) C2
B1
E2 E2
E1(B2) E2
B1
C1 C2
E1(B2) C2
B1
C1 C2
Ver.1.5
– 64 –
1 2
A
B
C
– 65 –
3 4 5
– 66 –