Circuit Boards Location; Schematic Diagrams - Sony KP-FS57M31 Service Manual

6-3. CIRCUIT BOARDS LOCATION

SR board
HM board
SR board
H1 board
H2 board
VM board
CG board
CB board
G board
SR board
VM board
CR board
H3 board
A1 board
V2 board
(Except KP-FS57M90)
J board
A block
B4 board
E board
AD board
D board
– 80–

6-4. SCHEMATIC DIAGRAMS

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 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.
*
• 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
Ref. No.
Circuit diagram division code.
KP-FS57M31/M61/M90/M91
Terminal name of semiconductors in silk screen
printed circuit ( )
*
Circuit
Device Printed symbol Terminal name
Collector
1
Transistor
Base Emitter
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
Transistor Source
!£
Drain
D
(FET) Gate
G
Transistor Source
!¢ S
Drain
(FET) Gate
D
Source
Transistor
!∞
Drain
(FET)
Gate
S
Emitter
!§
Transistor Collector
Base
C1
C2 B1 E1
!¶
Transistor
B1
E2 B2 C1
E1
C1 B2 E2
!•
Transistor
C1
E1 B1 C2
B1
C1 B2 E2
!ª E1
Transistor
E1 B1 C2
E1
C1 B2 E2
@º
Transistor B1
E1 B1 C2
C1
C1(B2)
E2 B1 E1
@¡
Transistor
B1
C2 C1(B2)
E2
E1(B2)
(B2)
B1 E1
E2
@™
Transistor B1
C1 C2
C1
(B2) E1(B2)
E2 E1 B1
@£
Transistor
B1
C2 C1
C1
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
– 81–
RM-997
D
G
S
D
G G
S
C2
B2
E2
C2
B2
E2
E2
B2
C2
C2
E2
E2
C2
C2
C2
Ver.1.5