Circuit Boards Location; Schematic Diagrams And Printed Wiring Boards - Sony KP-44PX3 Service Manual

7-1. BLOCK DIAGRAMS (6)
CN8025
1 ABL IC8003
3 V DRV+
7
TO A BOARD 4 V DRV-
4
CN3011
9 EW PARA
1
6 HC PARA
BUFFER
6
Q8001
CN8027
14 ABL
8 V SHIFT IC8002
4 VP
3
2 MUTE
6
13 HC PARA
TO AD BOARD
14
7 H CENT
CN9401
1 BV
15
11 DFV
10 DF
5 HP
IC8001
CN8026
2
14 GH
8 BH
4 GV
15
2 RV
14
13 RH
6
7 RE-YS/YM
1 RE-B
TO AD BOARD
11 RE-G
CN9400
10 RE-R
5 SCLK
H DRIVE
1 SDAT Q8042
11 PSCL
10 PSDA Q8041
5 /BINT
Q8022
CN8028
2 /BINT/DEGAUSS
TO AD BOARD
4 SDAT
CN9400
3 SCLK
CN8029
6 RE-R
5 RE-G Q8021
TO A BOARD
4 RE-B
CN8511
VR8002
3 RE-YS/YM
CN8030
4 /BINT
7 PSDA
ERR IN
SERVICE 6 PSCL
CONNECTOR
3 SDAT
2 SCLK
CN8031
10 HP
7 V PROT
TO A BOARD
8 H PROT
CN3012
2 H DRIVE
T8001
CN8003 DFT
DFH BUFFER
2 DF2 BUFFER AMP
8 2
TO FOCUS
Q8008 Q8011
1 G2 OFF VCC
PACK
BUFFER
DFH
G2 MUTE BUFFER AMP
6 4 BUFFER
Q8010
Q8002 Q8042
Q8009
Q8015
Q8003
+7V
IC8005
(ON REG)
Q8016,
SWITCH
Q8019, 14
Q8004
Q8020
10
11
6
BUFFER
Q8044 T8002
HDT
BUFFER BUFFER
6
Q8030 Q8023
+135V 7
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5
GH
9 PS8002
7
BH
PS8004
11
13
BV
18 PS8006
16
GV
18 PS8005
16
RH
9 PS8001
7
RV
11 PS8003
13
T8005
4
+135V
FBT
H OUT
6 3 1 HV
Q8043
7 2
2 11
1
IC8007
7 5
1 SWITCH
3
Q8029
6 2
+135V
SWITCH
Q8028
IC8006
T8004
7 5
LOT
1
6 14 210V
1
3 2
135V
12
10 PS8007
Q8035 7
IC8008 8
7 10
11
12
3
6
5
18 18 T8003
HOT
DF
8
VCC
4
10
6
BUFFER Q8027 1
IC8009
Q8014
7
PS8008
5 4
IC8012
3
3 1 Q8039 1 2
3
12
7
1
2
D ( )
3 Q8024
HV DEF, HV, DY DRIVE
4
7-2. CIRCUIT BOARD LOCATION
VMB
CN8007
V DEF- 1
TO DY (R)
V RET 3
H3
CN8008
V DEF- 1
TO DY(G)
V RET 3
CN8009
V DEF- 1
TO DY(B)
V RET 3
CN8011
GH OUT 1
GH RET 4
TO DY(G)
GV OUT 2
H1
GV RET 3
H1
CN8010
BH OUT 1
H2
BH RET 4
TO DY(B)
BV OUT 2
BV RET 3
CN8012
CB
RH OUT 1
CB
RH RET 4
TO DY(R)
RV OUT 2
RV RET 3
7-3. SCHEMATIC DIAGRAMS AND
TO FBT
PRINTED WIRING BOARDS
Note :
• All capacitors are in µF unless otherwise noted.
• pF : µµF 50WV or less are not indicated except for
CN8023
electrolytic types.
1 K2 2

• Indication of resistance, which does not have one for
TO A BOARD
PRINT ON/OFF 3
CN3013
rating electrical power, is as follows.
1 K1 1

Pitch : 5mm
Electrical power rating : 1/4W
• Chip resistors are 1/10W
• All resistors are in ohms.
CN8022
H(+) 6
k = 1000 ohms, M = 1000,000 ohms
TO CB BOARD
CN9601
H(-) 7
• : nonflammable resistor.
CN8016
HV-REG 3
TO HV BLOCK
• : fusible resistor.
CN8015
R 1


• : internal component.
R 2


• : panel designation or adjustment for repair.
CN8019
H OUT(B) 1
H OUT RET(B) 4
TO DY(B)
• All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
CN8020
H OUT(R) 1
• All voltages are in Volts.
H OUT RET(R) 4 TO DY(R)
• Readings are taken with a 10Mohm digital mutimeter.
• Readings are taken with a color bar input signal.
CN8018
H OUT(G) 1
• Voltage variations may be noted due to normal production
H OUT RET(G) 4
TO DY(G)
tolerences.
• : B + bus.
• : B - bus.
• : RF signal path.
• : earth - ground.
• : earth - chassis.
- 40 -
Reference Information
RESISTOR
ZG
VMG
F1
ZB
ZR
VMR
CR
CR
COIL
CG
CG
CAPACITOR
B
J
M2
A
A
AD
AP
G
D
G
D
Note :
Note :
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
LF-8L : MICRO INDUCTOR
TA : TANTALUM
PS : STYROL
PP : POLYPROPYLENE
PT : MYLAR
MPS : METALIZED POLYESTER
MPP : METALIZED POLYPROPYLENE
ALB : BIPOLAR
ALT : HIGH TEMPERATURE
ALR : HIGH RIPPLE
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
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.