Sony KF-50SX200 / KF-50SX200K / KF-50SX200U Service Manual ▷ View online
KF-50SX200/50SX200K/50SX200U
K
RM-905
– 37 –
BLOCK DIAGRAM (7)
CN4701(1/2)
QSS-1
B13
MAIN R IN
A2
AM1
A14
A RESET
A7
+5V
B3
TO BLOCK
DIAGRAM(2)
A(1/2)BOARD
CN1901
SCL
A5
SDA
B5
+9V
B2
MAIN L IN
A1
S
(AUDIO PROCESS)
Q4701
BUFF
Q4702
BUFF
TRAP
(6.5MHz)
56 AV MAIN L IN
57
37
36
AV MAIN R IN
61 IF IN1
Q4703
BIAS
69 IF IN2
IC4702
SOUND PROCESSOR
60 MONO IN(AM)
72 XTAL OUT
71 XTAL IN
21 POWER ON RESET
2
SCL
SUBWOOFER OUT
3
SCA
X4701
18.432MHz
TV OUT L
TV OUT R
+9V
-
+
6
5
7
-
-
+
+
9
10
8
IC4703(1/3)
OUTPUT AMP
IC4703(2/3)
OUTPUT AMP
IC4703(3/3)
OUTPUT AMP
CN4701(2/2)
R-TV
A4
L-OUT
B10
R-OUT
A11
SW2
B8
SUB R
A9
TO BLOCK
DIAGRAM(2)
A(1/2)BOARD
CN1901
L-TV
A3
+9V
+5V
G1
G2
28
27
30
Q4712
LPF
Q4711
LPF
SPEAKER
OUT L
SPEAKER
OUT R
1
3
2
C-OUT
B11
KF-50SX200/50SX200K/50SX200U
K
RM-905
– 38 –
BLOCK DIAGRAM (8)
G
(POWER SUPPLY)
H2
(KEY IN)
H4
(REMOTE DET,POWER SW)
TO BLOCK
DIAGRAM(3)
A(2/2)BOARD
CN2003
M
TO BLOCK
DIAGRAM(3)
A(2/2)BOARD
CN1918
K
TO BLOCK
DIAGRAM(3)
A(2/2)BOARD
CN1915
I
TO BLOCK
DIAGRAM(3)
A(2/2)BOARD
CN1914
L
TO BLOCK
DIAGRAM(3)
A(2/2)BOARD
CN1926
TO LAMP DRIVER
J
TO BLOCK
DIAGRAM(2)
A(1/2)BOARD
CN1924
C2
TO BLOCK
DIAGRAM(2)
A(1/2)BOARD
CN1924
C1
– 39 –
KF-50SX200/50SX200K/50SX200U
K
RM-905
4-2. FRAME SCHEMATIC DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
B
C
D
E
F
G
H
I
J
STBY 7V
STBY 7V
KEY 1
KEY 2
+DC
AC DET
AC ON/OFF
6
6
GND
GND
GND
GND
LAMP COV
FAN1 POW
FAN2 PR
NC
FA2 POW
FAN1 PR
HV DET
2
4
8
11
1
3
7
10
6
5
9
GND
SDA-E
SCL-E
SDA-M
SCL-M
GND
SDA-M
SCL-M
AGC MON
AGC MON
ST-BY
HP L
HP R
QSS2
QSS1
(S OUT)
(C OUT)
R OUT
L OUT
(HP-R)
(HP-L)
HP-R(NC)
HP-L(NC)
(R-IN 2)
A RESET
A RESET
(L-IN 2)
GND
SDA0
SCL0
+3.3V(NC)
GND
GND
SO
WP-LUT
SCLK-OSD
SDAT-OSD
SS
SO
WP-LUT
SCLK-OSD
SDAT-OSD
SS
BLANKING
BLANKING
SCL-E
SDA-E
CVBS1 IN
CENTER +
CENTER -
(BLK2 IN)
BLK2 IN
NC
NC
SW2(NC)
NC
SCL
SDA
BLK2 OUT
(BLK2 OUT)
MAIN LOUT
(COMB CV OUT)
(COMB CV OUT)
(EXT-V)
H PULSE SUB IN
H PULSE MAIN IN
V PULSE MAIN IN
V PULSE SUB IN
(EXT-U)
(COMB C IN)
COMB Y IN)
MAIN ROUT
CVBS2 IN
10
11
GND
NC
3.3V
GND
3.3V
GND
3.3V
GND
NC
(WIDE)
SWFV
SWFH
5V
GND
5V
GND
H OUT
GND
V OUT
GND
9V
GND
9V
GND
(GAME)
NC
OSD B
OSD G
OSD R
YSYM
AMD-RST
GND
3.3V
GND
3.3V
GND
3.3V
GND
TRAP
(WIDE)
(SWFV)
(SWFH)
5V
GND
5V
GND
H OUT
GND
V OUT
GND
9V
GND
9V
GND
(GAME)
GND
OSD B/GND
OSD G/GND
OSD R/GND
YSYM/GND
AMD-RST
GND
VDO Y
GND
VDO RY
GND
VDO BY
GND
VDO H
GND
VDO V
GND
SDA2
SCL2
GND
NC
NC
NC
NC
GND
CONT1
CONT2
MAIN V
GND
MAIN H
GND
MAIN BY
GND
MAIN RY
GND
MAIN Y
GND
VDO Y
GND
VDO RY
GND
VDO BY
GND
VDO H
GND
VDO V
GND
SDA0
SCL0
GND
SDAT
SCLK
SENA
SERI
GND
(CONT1)
(CONT2)
MAIN V
GND
MAIN H
GND
MAIN BY
GND
MAIN RY
GND
MAIN Y
GND
BIMETAL
SWITCH
FAN2
FAN1
TO FRONT
PLATE
TO PLATE J
TO J SHIELD
TO C SHIELD
CN1905
CN1906
CN1924
CN1907
CN1917
CN1904
CN1606
CN5001
CN5004
CN5002
CN5005
CN4302
CN8001
CN4401
CN1605
CN1604
CN1603
CN1613
CN1614
CN1616
CN1611
CN1610
CN5401
CN1922
CN1918
CN1914
CN1926
CN1915
CN1908
CN4301
CN4303
CN1602
CN1601
CN1602
CN703
CN701
CN702
CN4404
CN1607
CN1615
CN2003
CN9001
CN1001
CN4701
CN1901
CN1202
CN1201
CN8101
CN5601
CN5801
CN4402
CN1801
CN2002
CN1665
9P
WHT
:S-MICRO
3P
WHT
:S-MICRO
10P
RED
:S-MICRO
10P
WHT
:S-MICRO
5P
WHT
:S-MICRO
12P
WHT
:S-MICRO
7P
:S-MICRO
9P
10P
12P
11P
5P
WHT-L
:S-MICRO
3P
BLK-L
:S-MICRO
7P
RED-L
:S-MICRO
5P
WHT
:S-MICRO
4P
WHT
:VH
8P
BLK
:S-MICRO
9P
BLK
:S-MICRO
3P
WHT
:S-MICRO
4P
WHT
:S-MICRO
3P
:VH
1P
1P
34P
11P
:BTOB-R
5P
WHT
:S-MICRO
9P
BLK
:S-MICRO
4P
:VH
8P
BLK
:S-MICRO
11P
YEL
:S-MICRO
6P
YEL-L
:S-MICRO
9P
WHT-L
:S-MICRO
3P
:VH
2P
WHT
:VH-B
1P
30P
30P
11P
7P
WHT-L
:S-MICRO
13P
RED
:S-MICRO
7P
WHT
:S-MICRO
50P
GRY
:BTOB-P
50P
:BTOB
40P
GRY
:BTOB-P
40P
GRY
:BTOB-P
30P
:B TO B
30P
:B TO B
50P
GRY
:BTOB-P
34P
34P
5P
RED-L
:S-MICRO
50P
:B TO B
8P
WHT
:S-MICRO
:TAB
B-SS856.<AEP>-KESSENZU-05
CN1925
#
CN1608
#
CN1609
1P
CN2301
40P
:B TO B
CN1701
40P
:B TO B
CN8903
11P
RED-L
:S-MICRO
– 40 –
KF-50SX200/50SX200K/50SX200U
K
RM-905
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
4-3. CIRCUIT BOARDS LOCATION
Note:
• The parts marked “#” on schematic diagrams are not mounted.
• All capacitors are in
µ
F unless otherwise noted. (pF:
µµ
F)
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.
•
5
: 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
Ω
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.
•
F
: Signal path.
4-4. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
V
V
•
Divided schematic diagram
Schematic diagrams of A, BB, J and M 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 A1/4,A2/4_1 ] means the line is connected to
Ref. No. 1 of A (1/4) and A (2/4) schematic diagrams.
TO A1/4,A2/4_1
Ref. No.
Name of divided schematic diagram
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)
(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)
(FET)
Transistor
(FET)
(FET)
qg
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
*
H4
T
BB
S
G
H2
H1
J
N
A
M
Power block
Note: The components identified by shading and mark
0
are critical for safety. Replace only with part
number specified.
Click on the first or last page to see other KF-50SX200 / KF-50SX200K / KF-50SX200U service manuals if exist.