Sony KDF-55WF655K, Руководство по обслуживанию, Страница: 28 / 364

KDF-55WF655K/60WF655K
RM-KD001 RM-KD001
– 27 –
SECTION 5
DIAGRAMS
5-1. CIRCUIT BOARDS LOCATION
5-2. SCHEMATIC DIAGRAMS AND PRINTED WIRINGS INFORMATION
Note:
• The parts marked “#” on schematic diagrams are not mounted.
• All capacitors are in
µ
F unless otherwise noted. pF :
µµ
F 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. k
Ω
=1000
Ω
, M
Ω
=1000k
Ω
Indication of resistance, which does not have one for rating
electrical power, is as follows:
Pitch : 5mm
Rating electrical power :
1 /
4
W
• 1 /
4
W in resistance, 1 /
10
W and 1 /
16
W in chip resistance.
• : 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 10M
Ω
digital multimeter.
• Voltages are dc with respect to ground unless otherwise noted.
• : 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
G2
G1
U
B
RF antenna switch
Power supply
bloc k
C (Part of Optics Unit Block Assembly
Cannot be ordered separately)
KD
H2
HM
H1
H3
Q Box
Assembly
H4
A
F
P
T
• 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.
G
D
S
B1 E1 C2
B2 C1 E2
2
3
4
5
6
7
8
9
0
qa
qs
qf
qh
qj
qk
–
1
G
D
S
B2 E2 C1
B1 C2 E1
B2 E2 C1
B1 C2 E1
B2 E2 C1
B1 C2 E1
ql
B1 E1
E2
C1(B2) C2
w;
B1 E2
C1 C2
ws
wd
(B2)
E1
(B2)
E1
E2
B1
C2 C1
wa
B1
E1
C2
B2
C1
E2
G
S S
D
G
D
B1
E1
C2
B2
C1
E2
B1
E2
C2 C1(B2)
E2
B1
C1
C2 E1(B2)
C2
B1
C1
E2 E1(B2)
C2
B1
C1
E2
B2
E1
C2
Ver.1.5
Transistor
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode Cathode
Common
Cathode Cathode
Common
Common
Common
Common
Cathode
Anode
Base
Emitter
Collector
Base Emitter
Collector
Drain
Gate
Gate
Drain
Device Printed symbol Terminal name Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode Cathode
Anode Anode
Cathode
qd
Transistor
(FET)
Transistor
(FET)
qg
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
*