Circuit Boards Location; Schematic Diagrams And Printed Wiring Boards - Sony KF-60DX100 Service Manual

4-3. CIRCUIT BOARDS LOCATION

BC
BB
H3
M
H2
T
BC4
U
A
Power block
4-4. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
Note:
• The parts marked "#" on schematic diagrams are not mounted.
• 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.
H1
• : nonflammable resistor.
• 5 : fusible resistor.
• : internal component.
• : panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
G
• : 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.
*
• Circled numbers are waveform references.
V
• : B + bus.
• V : B – bus.
• F : Signal path.
• Divided schematic diagram
Schematic diagrams of A, BB, BC, M and U boards are divided
into several pieces. Information to where the line is to be connected
is printed at the end of each line.
For example, [ TO A1/3,A2/3_1 ] means the line is connected to
Ref. No. 1 of A (1/3) and A (2/3) schematic diagrams.
TO A1/3,A2/3_1
Ref. No.
Name of divided schematic diagram
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
0 are critical for safety. Replace only with part
number specified.
Note: Les composants identifiés par un tramé et une
marque 0 sont critiques pour la sécurité. Ne les
remplacer que par une pièce portant le numéro
spécifié.
– 53 –
KF-60DX100
Terminal name of semiconductors in silk screen
printed circuit ( )
*
Device Printed symbol Terminal name Circuit
Collector
Transistor
1
Base Emitter
Collector
Transistor
2
Base Emitter
Cathode
3
Diode
Anode
Cathode
4
Diode
(NC)
Anode
Cathode
5 Diode
Anode (NC)
Common
6 Diode
Anode Cathode
Common
Diode
7
Anode Cathode
Common
8
Diode
Anode Anode
Common
9 Diode
Anode Anode
Common
0 Diode
Cathode Cathode
Common
qa Diode
Cathode Cathode
Anode Cathode
qs Diode Anode Anode
Cathode Anode
Transistor Source
Drain
qd
(FET) Gate D D
G G
Source
Transistor
S S
qf Drain
(FET)
Gate
D D
Source
Transistor
qg Drain G
(FET) Gate
S S
Emitter
qh Transistor Collector
Base
C1 C2
C2 B1 E1
qj Transistor
B1
E2 B2 C1
E1 E2
C1 B2 E2
Transistor
qk
C1 C2
E1 B1 C2
B1
C1 B2 E2
E1 E2
ql Transistor
E1 B1 C2
E1 E2
C1 B2 E2
Transistor
w; B1
E1 B1 C2
C1 C2
C1(B2) C2
E2 B1 E1
Transistor
wa B1
C2 C1(B2)
E2 E2
E1(B2) E2
(B2)
B1 E1 E2
ws Transistor
B1
C1 C2
C1 C2
(B2) E1(B2) C2
E2 E1 B1
Transistor
wd B1
C2 C1
C1 C2
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
K
RM-Y910
G
B2
B2
B2
Ver.1.5