Diagrams; Circuit Boards Location; Schematic Diagrams And Printed Wirings Information - Sony KDF-55WF655K Service Manual

5-1. CIRCUIT BOARDS LOCATION

T
HM
H2
Q Box
Assembly
H1
G1
G2
H4
U
KD
F
A

5-2. SCHEMATIC DIAGRAMS AND PRINTED WIRINGS INFORMATION

Note:
• The parts marked "#" on schematic diagrams are not mounted.
• All capacitors are in µF unless otherwise noted. pF : µµF 50WV or
less are not indicated except for electrolytics and tantalums.
• All electrolytics are in 50V unless otherwise specifi ed.
• All resistors are in ohms. kΩ=1000Ω, MΩ=1000kΩ
Indication of resistance, which does not have one for rating
electrical power, is as follows: Pitch : 5mm
Rating electrical power : 1 / W
4
• 1 / W in resistance, 1 / W and 1 / W in chip resistance.
4 10 16
• : nonflammable resistor.
• : fusible resistor.
• : internal component.
• : panel designation and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B, unless oth-
erwise noted.
• : earth-chassis.
• Readings are taken with a PAL color-bar signal input.
• Readings are taken with a 10MΩ digital multimeter.
• Voltages are dc with respect to ground unless otherwise noted.
SECTION 5

DIAGRAMS

C (Part of Optics Unit Block Assembly
Cannot be ordered separately)
H3
Power supply
bloc k
RF antenna switch
P
B
• Voltage variations may be noted due to normal production tolerances.
• All voltages are in V.
S : Measurement impossibillity.
• Circled numbers are waveform references.
• A
: B+line.
• : B-line (Actual measured value may be different).
The components identifi ed by shading and ! symbol are critical for safety . Replace
only with part number specifi ed.
The symbol indicates a fast operating fuse and is displayed on the component
side of the board. Replace only with fuse of the same rating as marked.
• : signal path.(RF)
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
: ADJUSTMENT RESISTOR
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
– 27 –
KDF-55WF655K/60WF655K
RM-KD001 RM-KD001
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
Anode (NC)
Cathode
5 Diode
Anode (NC)
Common
Diode
6
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
Diode Anode
qs Anode
Anode
Cathode
Transistor Source
Drain
qd
(FET) Gate D D
G G
Source
Transistor
S S
qf Drain
(FET) Gate
D D
Source
Transistor
qg G
Drain
(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
qk Transistor
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
E1(B2) C2
(B2)
E2 E1 B1
wd Transistor B1
C2 C1
C1 C2
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
G
B2
B2
B2
Ver.1.5