Sony KP-43T90 / KP-48V90 / KP-53V90 / KP-61V90 Service Manual ▷ View online
— 29 —
KP- 43T90 / 48V90 / 53V90 / 61V90
S
HC
HA
CG
CR
HB
G
A
CB
HV HOLD-DOWN
(R536, R545)
HV Regulator
(C517)
A board, G board, C517, C521, C522,
IC654, L504, T502, T504, DY,
IC654, L504, T502, T504, DY,
A board, G board, C516, C517, C521,
C522, C536, D506, D507, D522,
IC206, IC502, IC654, L504, R511,
R522, R536, R538, R545, R548,
R584, T502, T504, DY
C522, C536, D506, D507, D522,
IC206, IC502, IC654, L504, R511,
R522, R536, R538, R545, R548,
R584, T502, T504, DY
All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less
are not indicated except for electrolytics and tantalums.
are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms. K=1000, M=1000k
Indication of resistance, which does not have one for rating electrical
power, is as follows: Pitch : 5mm
power, is as follows: Pitch : 5mm
Rating electrical power :
1
/
4
W
1
/
4
W in resistance,
1
/
10
W and
1
/
8
W in chip resistance.
: nonfl ammable resistor.
: fusible resistor.
: internal component.
: panel designation and adjustment for repair.
All variable and adjustable resistors have characteristic curve B, unless
otherwise noted.
otherwise noted.
Readings are taken with a NTSC color-bar signal input.
Readings are taken with a 10M digital multimeter.
Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V.
S : Measurement impossibillity.
: B+ line
: B-line. (Actual measured value may be different).
: signal path. (RF)
Circled numbers are waveform references.
The components identifi ed by X in this basic schematic diagram have
been carefully factory-selected for each set in order to satisfy regulations
regarding X-ray radiation. Should replacement be necessary, replace
only with the value originally used.
been carefully factory-selected for each set in order to satisfy regulations
regarding X-ray radiation. Should replacement be necessary, replace
only with the value originally used.
When replacing components identifi ed by Y, make the necessary
adjustments as indicated. If the results do not meet the specifi ed value,
change the component identifi ed by X and repeat the adjustment until
the specifi ed value is achieved.
adjustments as indicated. If the results do not meet the specifi ed value,
change the component identifi ed by X and repeat the adjustment until
the specifi ed value is achieved.
(Refer to adjustments in Sections 3-1 and 3-2.)
When replacing the parts listed in the table below, it is important to
perform the related adjustments.
perform the related adjustments.
Part Replaced (Y)
Adjustment (X)
5-1. CIRCUIT BOARDS LOCATION
SECTION 5: DIAGRAMS
5-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS INFORMATION
— 30 —
KP- 43T90 / 48V90 / 53V90 / 61V90
G
D
S
B1 E1
C2
B2 C1
E2
-
G
D
S
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B2 E2
C1
B1 C2
E1
B1 E1
E2
C1(B2)
C2
B1
E2
C1
C2
(B2)
E1
(B2)
E1
E2
B1
C2
C1
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.1.6
Transistor
(FET)
(FET)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Discrete semiconductor
(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
Anode
Anode
Anode
Cathode
Anode
Anode
Cathode
Transistor
(FET)
(FET)
Transistor
(FET)
(FET)
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
Terminal name of semiconductors in silk screen
printed circuit (
printed circuit (
*
)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
REFERENCE INFORMATION
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RW NONFLAMMABLE WIREWOUND
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
:
: 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
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
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.
Les composants identifi es per un trame et une marque
!
sont critiques pour la
securite. Ne les remplacer que par une piece portant le numero specifi e.
Le symbole
indique une fusible a action rapide. Doit etre remplace par une
fusible de meme yaleur, comme maque.
— 31 —
KP- 43T90 / 48V90 / 53V90 / 61V90
5-3. BLOCK DIAGRAM (1 OF 8)
1
2
15
16
17
18
43
60
61
62
51
53
52
32
33
34
35
35
36
37
45
46
7
8
6
57
58
22
47
49
48
50
9
11
12
63
64
23
14
44
55
13
21
20
56
I-2HSYNC
I-HSYNC
SUBTU AFT
MAINTU AFT
O-MONO
O-SAP
I-SAPN
I-STEREN
O-2MUTE
O-MUTE
O-AGC ATT
ANT SW1
ANT SW2
O-R
O-G
O-B
O-I
O-OSDYS
O-DISPYM
O-SBLK
O-MBLK
I-HP
I-VP
I-BINTN
O-YUVMT
IC002
SYSTEM CONTROL
IC004
EEPROM
IC001
RESET
28
5
17
18
IN1
IN2
SCL
SDA
IC403
D/A CONVERTER
O-SPK MT
I-APROT
21
12
OUT1
OUT2
7
11
5
IN+(L)
IN+(R)
MUTE
IC406
L/R AMP
4
8
2
10
OUT(L)
IN-(L)
OUT(R)
IN-(R)
IO-SDAT
O-SCLK
IO-B DAT
O-B CLK
5
6
B DAT
B CLK
I-RESET
O-OSC
I-OSC
4 RESET
O-SIRCS
I-RMCN
O-GRAY
KEY
I-POWERN
O-TMRLED
MENU
I-OVP
I-OCP
O-RELAY
TO
A
BOARD
TUNER
BLOCK
BLOCK
TO
A
BOARD
VIDEO
BLOCK
TO A
BOARD
PJED
BLOCK
STUH
MTUH
STU AFT
MTU AFT
MONO
SAP
SAP IND
ST IND
STU AUMT
MTU AUMT
AGC ATT
ANT SW1
ANT SW2
MICRO R
MICRO G
MICRO B
MICRO I
OSD YS
DISP YM
SBLK
MBLK
HP
VP-BUFF
HP
VP-BUFF
B INT
TO A
BOARD
TUNER
BLOCK
BLOCK
FOR
CHECK
YUV MT
TO A
BOARD
TUNER
BLOCK
BLOCK
ML OUT1
HR OUT1
TO A
BOARD
TUNER
BLOCK
BLOCK
P-MUTE
TO A
BOARD
VIDEO
BLOCK
GRAY
TO A
BOARD
TUNER
BLOCK
BLOCK
R OUT
L OUT
TO A
BOARD
TUNER
BLOCK
BLOCK
RM IN
TO A
BOARD
TUNER
BLOCK
BLOCK
S OUT
SWITCH
Q024
CONTROL
SWITCHES
S1201-1206
MENU
SWITCHES
S1251-1255
POWER
S1207
TIMER/STANDBY
SWITCH
Q007
LED BUFF
Q006
X001
16MHz
SDA
SCL
+11V
STBY
+5V
L/R MUTE
Q403, 404
PROTECT
Q408-411
OFF MUTE
Q402
ON MUTE
Q401
1
2
3
4
L
E
R
E
CN403
11
10
3
BCLK
B DAT
SIRCS
8
7
4
OVP
OCP
RELAY
CN681
1
MENU KEY
CN1202
1
2
OUT
MENU KEY
SIRCS
CN1252
CN1291
6
7
8
9
2
3
4
5
6
KEY
POWER
TIMER LED
MENU
SIRCS
KEY
POWER
TIMER LED
MENU
CN002
CN1203
CN003
IC404
5
6
7
IC404
3
2
1
STBY +5V
D1201
D1291
REMOTE SENSOR
A
(1/4)(AUDIO, SYSTEM CONTROL)
(2/2)
HA
(CONTROL SWITCHES)
HC
(REMOTE SENSOR)
HB
(MENU SWITCHES)
G
TO G
BOARD
CN605
— 32 —
KP- 43T90 / 48V90 / 53V90 / 61V90
BLOCK DIAGRAM (2 OF 8)
3
1
2
4
3
1
2
4
3
1
2
4
63
62
64
54
60
59
61
12
10
14
8
9
11
19
17
21
15
16
18
24
58
56
34
33
4
2
1
7
3
5
41
88
84
83
43
45
37
39
14
4
5
12
11
9
50
52
I
O
J1103
Q1108
Q1109
J1104
J1106
J1101
J1102
C IN
V/C OUT
V IN
U/Y OUT
U IN
DVD SW
DVD SW
AYI
FSC I
AYO
ACO
MTV R
MTV V
MTV L
STV R6
STV V6
STV L6
Y IN2
C IN2
C OUT2
Y OUT2
V3
L3
Y3
R3
C3
SSW-3
V2
L2
Y2
R2
C2
SSW-2
V1
L1
Y1
R1
C1
SSW-1
MAIN V OUT
Y4
FR Y IN
FRONT SW
FR C IN
FR V IN
FR L IN
FR R IN
FR Y OUT
FRONT SW
FR C OUT
FR V OUT
FR L OUT
FR R OUT
FL1703
+11V
IC1701
5V REG
REG 5V
VIDEO
AUDIO
R
IN
VIDEO2
S VIDEO
L(MONO)
HR OUT1
ML OUT1
HR OUT1
ML OUT1
DET OUT 2
L OUT
R OUT
DET OUT
AFT OUT
ST IND
SAP IND
RF AGC
MODE
F MONO
MUTE
SDA
SCL
DET OUT
DE-EM OUT
AFT OUT
MUTE
SDA
SCL
SDA
SCL
SDA
SCL
BUFFER
H.SEP
SWITCH
Q152
Q004
Q151
BUFFER
H.SEP
Q153
Q001
DET OUT
AFT OUT
ST IND
SAP IND
RF AGC
MODE
F MONO
STUH
STUAFT
STUAUMT
ANT SW1
ANT SW2
SYSTEM CONTROL
BLOCK
TO A BOARD
SYSTEM CONTROL
BLOCK
TO A BOARD
MTU AUMT
SAVA CONT
BUFFER
SIRCS MIX
BUFFER
Q1121
Q1114
Q1111
Q1106,1107
Q1117
Q1906
Q1118
Q1119
BUFFER
BUFFER
SUB C BUFF
MUTE BUFFER
Q1918
BUFFER
IC1101
A/V SWITCH
Q1707
BUFFER
FL1701
IC1703
3D COMB FILTER
BUFFER
Q1102
IC1903
YUV SWITCH
SYSTEM CONTROL
BLOCK
FROM A BOARD
TO A BOARD
SYSTEM CONTROL
BLOCK
SYSTEM CONTROL
BLOCK
FROM A BOARD
MTU AUMT
P MUTE
ANT SW1
ANT SW2
3
1
ANT
SW
TU151
MAIN TUNER
TU152
SUB TUNER
IN
VIDEO 1
S VIDEO
VIDEO
R
L(MONO)
R
Y
L(MONO)
IN
S VIDEO
VIDEO
VIDEO 3
PB
PR
AUDIO OUT
(VAR/FIX)
R
L
CONTROL
S
OUT
SC OUT1
SWITCH
Q005
SWITCH
Q003
CN004
BUFFER
BUFFER
Q1714
Q1719
(LINE IN 1)
HB
(1/2)
(TUNER, VIDEO, AUDIO IN/OUT)
A
(2/4)
FL1704
Y IN
SDA
SCL
SDA
SCL
SY OUT1
10
7
9
5
3
1
10
7
9
5
3
1
CN1702
CN1253
J1251
L OUT
R OUT
S OUT
RM IN
1
BUFFER
Q1112
SWITCH
Q1115
BUFFER
Q1113
Q1704
BUFFER
Q1703
BUFFER
Q1706
BUFFER
Q1701,1702,1705
BUFFER
76
CSI
BUFFER
BUFFER
Q1715
Q1711
AMP
AMP
Q1717
Q1713
C-BUFF
Y-BUFF
Q1716
Q1712
23
25
L4
R4
IN
VIDEO 4
J1107
IN
AUDIO 4
IC1702
FRAME MEMORY
R
L(MONO)
IN
AUDIO 3
IN
AUDIO 1
Q1721
Q1722
AMP
AMP
Q1124
BUFFER
Q1125
BUFFER
3
13
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