DOWNLOAD Sony KP-44PX2 / KP-44PX2U Service Manual ↓ Size: 29.34 MB | Pages: 96 in PDF or view online for FREE

Model
KP-44PX2 KP-44PX2U
Pages
96
Size
29.34 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kp-44px2-kp-44px2u.pdf
Date
PREV: Sony KV-28FX66B (serv.man2) Service Manual

Sony KP-44PX2 / KP-44PX2U Service Manual ▷ View online

- 38 -
7-1.  BLOCK DIAGRAMS (4)
G (     )
POWER
SUPPLY
4
2
8
T6004
PIT AUDIO
4
2
13
15
T6005
PIT
7
9
10
12
16
18
+
5
6
9
4
3
2
1
3
4
5
9
10
+10.5V
1
3
12
1
2
+10.5V
+6.5V
+6.5V
+6.5V
+6.5V
PROT
P. CONT
-15V
+15V
-22V
+22V
-17V
+17V
CN6301
CN6302
CN6303
D6300
RECT
D6301
RECT
D6310
RECT
D6308
RECT
D6309
RECT
D6302
RECT
IC6303
OVP
REF
K
IC6002
FEED BACK
D6304
RECT
1
+135V
1
4
IC6301
+B REG
Q6303
OCP
STBY +5V
OCP
AC ON/OFF
OVP
Q6301, 6302
PROTECT
19
1
IC6004
SWITCHING IC
7
17
2
16
3
1
11
T6003
PFT
14
1
9
T6100
SBT
8
5
6
3
4
Q6304
VOLT'G DET
2
1
IC6304
REF VOLTAGE
5
4
IC6302
STBY 5V REG
STBY +5V
3
A
K
REF
IN
OUT
VS
RT
COM
VG(H)
VG(L)
15
14
18
VD
VC2
VB
VC1
Q6100, 6102
PROTECT
IC6007
MAIN SW
Q6004
MCM SW
STBY
+5V
RY6000
D6015
RECT
3
2
1
4
1
4
2
3
AC(L)IN
AC(N)IN
1
4
5
1
AC(L)OUT
AC(N)OUT
CN6006
CN6007
T6002
LFT
T6001
LFT
F6001
5A
CN6004
2
1
AC(W)
AC(L)
AC IN
220 - 240V
50Hz
K
TO A BOARD
CN2503
Y
TO D BOARD
CN5013
L
TO A BOARD
CN6202
Z
TO D BOARD
CN5002
G
TO A BOARD
CN6200
5
2
3
1
CN6304
CN6300
TO H3 BOARD
CN3104
TO H3 BOARD
CN3103
- 39 -
7-1.  BLOCK DIAGRAMS (5)
J7101
6
8
1
10
7
G2
Q7103
MUTE
FV
KR
H2
H1
CN7104
G2
6
2
1
H(+)
H(-)
+200V
CN7102
5
7
3
1
2
MUTE
IK
G OUT
B OUT
+12V
1
IK
V OUT
IC7101
VIDEO OUT
3
9
5
VOF
V IN
Q7101
BUFFER
Q7104
BUFFER
CN7101
3
7
8
1
5
+12V
IK
R OUT
G OUT
B OUT
V901
PICTURE
TUBE
CR (     )
R CRT DRIVE
J7201
6
8
1
10
7
G2
Q7203
MUTE
FV
KG
H2
H1
CN7205
G2
6
2
1
H(+)
H(-)
+200V
CN7202
3
1
5
2
B OUT
MUTE
IK
+12V
1
IK
V OUT
IC7201
VIDEO OUT
3
9
5
VOF
V IN
Q7201
BUFFER
3
1
5
7
2
+12V
+200V
H(-)
V902
PICTURE
TUBE
CG (     )
G CRT DRIVE
TO
FOCUS
BLOCK
TO
FOCUS
BLOCK
CN7103
CN7204
CN7201
TO HV BLOCK
IK
MUTE
B OUT
G OUT
2
1
6
H(+)
1
TO HV BLOCK
J7301
7
8
1
10
6
G2
Q7303
MUTE
FV
KB
H2
H1
CN7304
G2
6
1
2
H(+)
H(-)
+200V
1
IK
V OUT
IC7301
VIDEO OUT
3
9
5
VOF
V IN
Q7301
BUFFER
1
3
5
2
+12V
+200V
H(-)
V902
PICTURE
TUBE
CB (     )
B CRT DRIVE
TO
FOCUS
BLOCK
CN7302
CN7301
IK
MUTE
B OUT
2
1
6
H(+)
1
TO HV BLOCK
+12V
+12V
Q7305, 7306
VOLTAGE DET. MUTE DRV
+12V
Q7302
PEAK
CN7303
P
TO D BOARD
CN5006
Q7202
PEAK
3
1
4
Q7408,
Q7409
VM AMP
CN7401
+135V
CN7405
1
ZR (     )
DY, VM DRIVE
+12V
VM
1
3
CN7403
V DEF
V RET
Q7401 - 7405, 7410
BUFFER, CORE
R-H RET
R-H DEF
2
1
CN7404
Q
4
3
RV SUB DEF
RV SUB RET
RH SUB DEF
RH SUB RET
R
TO D BOARD
CN5010
TO D BOARD
CN5009
V
H
SUB
V
SUB
H
VM
3
1
4
Q7608,
Q7609
VM AMP
CN7602
+135V
ZG (     )
DY, VM DRIVE
+12V
VM
1
3
CN7604
V DEF
V RET
Q7601, 7604  - 7607, 7610
BUFFER, CORE
V
H
SUB
V
SUB
H
VM
4
CN7606
1
G-H RET
G-H DEF
2
1
CN7603
S
4
3
GV SUB DEF
GV SUB RET
GH SUB DEF
GH SUB RET
T
TO D BOARD
CN5011
TO D BOARD
CN5008
CN7608
1
2
CN7405
4
3
+12V
VM
VM
4
+135V
+12V
4
1
3
V DEF
V RET
CN7605
+135V
1
CN7607
Q7808,
Q7809
VM AMP
ZB (     )
DY, VM DRIVE
1
3
CN7803
V DEF
V RET
Q7801, 7804  - 7807, 7810
BUFFER, CORE
V
H
SUB
V
SUB
H
VM
CN7804
B-H RET
B-H DEF
2
1
CN7802
V
4
3
BV SUB DEF
BV SUB RET
BH SUB DEF
BH SUB RET
W
TO D BOARD
CN5012
TO D BOARD
CN5007
CN7801
3
4
CN7405
+12V
VM
4
1
3
V DEF
V RET
CN7805
U
TO D BOARD
CN5020
+135V
1
4
X
TO D BOARD
CN5001
DY7807
DY7601
DY7401
TO A BOARD
CN7002
TO A BOARD
CN7001
- 40 -
7-1.  BLOCK DIAGRAMS (6)
7-2.  CIRCUIT BOARD LOCATION
7-3.  SCHEMATIC DIAGRAMS AND 
     PRINTED WIRING BOARDS
Note :
•
All capacitors are in µF unless otherwise noted.
•
pF : µµF 50WV or less are not indicated except for 
electrolytic types.
•
Indication of resistance, which does not have one for 
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
•
Chip resistors are 1/10W
•
All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have 
characteristic curve B, unless otherwise noted.
•
All voltages are in Volts.
•
Readings are taken with a 10Mohm digital mutimeter.
•
Readings are taken with a color bar input signal.
•
Voltage variations may be noted due to normal production
tolerences.
•
: B - bus.
•
: RF signal path.
•
: earth - ground.
•
: earth - chassis.
Reference Information
RESISTOR
RN
: METAL FILM
RC
: SOLID
FPRD
: NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS
: NON FLAMMABLE METAL OXIDE
RB
: NON FLAMMABLE CEMENT
RW
: NON FLAMMABLE WIREWOUND
: 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
Les composants identifiés par une trame et
par une marque     sont dune importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
 
Note :
The components identified by shading
and marked     are critical for safety.
Replace only with the part numbers 
specified in the parts list.
   
Note :
•
: B + bus.
ZG
ZR
CR
M2
A
AP
D
G
CB
CG
H2
H3
ZB
H1
MODE 3
A(7)
A(8)
A(9)
A(10)
A(11)
A(3)
A(4)
A(5)
A(6)
AV-LINK-IN
97
93
82
81
59
55
48
53
47
32
25
46
24
76
80
17
52
29
2
28
4
13
73
57
58
18
96
6
5
D(2)
D(3)
D(4)
D(5)
D(6)
A(16)
A(17)
A(17)-LN
D(0)
D(1)
A(14)
A(15)
40
39
49
27
38
66
65
37
64
36
33
51
8
50
26
23
67
15
85
86
3
87
88
84
83
89
90
92
91
79
78
12C-DISABLE
SCLO
SDAO
SIRCS
GROUP DELAY
VDS
MAIN-RY
COINCIDENCE
VSYNC
HSYNC
R-TEXT
G-TEXT
B-TEXT
TXT VIDEO
RESET-AUDIO
OCP FLAG
LED
OVP/OCP
MODE 2
MODE 1
AUDIO-MUTE
MUTELINE
RESET 100
KEY
AGC
RESET
ROMBK.1
ROMBK.0
A(0)
A(1)
A(2)
A(12)
A(13)
D(7)
SDA1
SCL1
11
10
12
8
9
26
23
4
25
21
20
7
6
27
5
18
17
19
15
14
29
28
13
30
3
2
IC0002   MICRO PROCESSOR
IC0006
M2
(        )
MICRO PROCESSOR
19
18
20
16
17
2
31
12
1
29
28
15
14
3
13
26
25
27
23
22
11
4
21
9
7
10
IC0005
SDRAM (TELETEXT)
5
1
IC0004
COMPARATOR
Q0009
Q0010
Q0007
Q0008
MODE 3
6
5
7
IC0001
NVM MEMORY
3
IC0003
RESET
2
IC0007
INVERTER
IC0008
EX-OR
4
1
2
10
8
13
12
11
9
IC0010
ABK(16)
ABK(15)
A(15)
7
AV-LINK
CN0001
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
22
21
23
24
34
25
35
36
37
38
39
40
12C-DISABLE
SCL
SDA
SIRCS
GROUP DELAY
FS100
MAIN RY
COINCIDENCE
V SYNC
H SYNC
R TEXT
G TEXT
B TEXT
TXT VIDEO
OCP
RESET AUDIO
LED
OVP
MODE 2
MODE 1
AUDIO MUTE
LINE-MUTE
RESET 100
KEY
AGC
AV-LINK-OUT
A(0)
D(7)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(11)
A(10)
A(12)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
A(17)
A(16)
A(15)
A(14)
A(13)
A(0)
D(7)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
A(8)
A(9)
A(11)
A(10)
A(12)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
A(17)
A(16)
A(15)
A(14)
A(13)
TO
A BOARD
CN0101
SWITCH
Q0002
SWITCH
Q0012, Q0013
4
I
2
C SWITCHES
4
3
1
RF-KEY
RF-DATA
RF-LED
SWITCH
Q0014
95
RF-LED
1
RF-DATA
54
RF-ENABLE
CN0002
- 41 -
A
B
C
D
E
F
G
H
I
J
K
L
M
N
1
2
3
4
5
6
7
8
9
10
11
O
P
Q
R
S
T
U
V
W
12
13
14
15
16
~ 
A Schematic [ Video and Audio Processors, Audio Output ] page 1/2 ~
COMPONENTS MARKED AS XX ARE NOT FITTED ON THIS MODEL
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