Frame Schematic Diagram; Schematic Diagrams And Printed Wiring Boards - Sony KL-37W2U Service Manual

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4-2. FRAME SCHEMATIC DIAGRAM

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Terminal name of semiconductors in silk screen
printed circuit (
1
2
3
4
5
6
7
8
9
0
!¡
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4-3. CIRCUIT BOARDS LOCATION
BB
TB
C
B1
J
F1
TA
H
A
Power block
F2 G
4-4. 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.
• All voltages are in V.
• Readings are taken with a 10 MΩ 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.
NO MARK : PAL
( ) : SECAM
• Circled numbers are waveform references.
• : B + bus.
• : B – bus.
• : Signal path.
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
COIL : LF-8L MICRO INDUCTOR
CAPACITOR : TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
Note: The components identified by shading and mark
! are critical for safety. Replace only with part
number specified.
)
Device Printed symbol Terminal name Circuit Anode
Cathode
!™
Collector Diode Anode Anode
Cathode Anode
Transistor
Base Emitter
Source
Transistor
!£ Drain
Collector
(FET) Gate D D
Transistor
G G
Base Emitter
Transistor Source
!¢ S S
Drain
(FET) Gate
Cathode
Diode
Anode D D
Source
Transistor
!∞ Drain G G
Cathode
(FET) Gate
Diode S S
Anode (NC)
Emitter
!§
Transistor Collector
Cathode
Base
Diode
Anode (NC) C1 C2
C2 B1 E1
!¶ Transistor
B1 B2
Common E2 B2 C1
Diode E1 E2
Anode Cathode
C1 B2 E2
!• Transistor
C1 C2
Common E1 B1 C2
Diode
B1 B2
Anode Cathode
C1 B2 E2
!ª Transistor E1 E2
Common E1 B1 C2
Diode
Anode E1 E2
Anode
C1 B2 E2
@º Transistor B1 B2
Common E1 B1 C2
Diode C1 C2
C1(B2) C2
Anode Anode E2
Transistor B1 E1
@¡ B1
Common
C2 C1(B2)
E2 E2
Diode
E1(B2) E2
Cathode Cathode (B2)
B1 E1 E2
@™ Transistor
B1
C1 C2
Common
C1 C2
Diode
(B2) E1(B2) C2
Cathode Cathode
E2 E1 B1
@£ Transistor B1
C2 C1
C1 C2
– Discrete semiconductot
(Chip semiconductors that are not actually used are included.) Ver.1.5
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