Circuit Boards Location; Schematic Diagrams And Printed Wiring Boards - Sony KP-XA43M31 Service Manual

6-3. CIRCUIT BOARDS LOCATION

H2
H1
G
CB
ZR
CR
ZG
V2
P1
UG
S
D
CG
E

6-4. 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: Common
• < > : SECAM
• ( ) : NTSC 3.58 MHz
• 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.
• Divided circuit diagram
Schematic diagrams of A, D, and E boards are divided into serveral
pieces. Information to where the line is to be connected is printed
at the end of wach line.
For example, [ TO A1/5, A2/5_1 ] means the line is connected to
Ref. No. 1 of A(1/5) and A(2/5) schematic diagrams.
TO A1/5, A2/5_1
– 47 –
KP-XA43M31/XA43M61/XA43M91
Terminal name of semiconductors in silk screen
printed circuit ( * )
Circuit
Device Printed symbol Terminal name
Collector
1
Transistor
Emitter
Base
Collector
2
Transistor
Base Emitter
3 Cathode
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) D D
Gate
G G
Source
Transistor
S S
!¢
Drain
(FET) Gate
D D
Source
Transistor
!∞
Drain G
(FET) Gate
S S
Emitter
!§
Transistor Collector
Base
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
RM-967
G
Ver.1.6