Circuit Boards Location; Schematic Diagrams And Printed Wiring Boards - Sony KP-44PX2 Service Manual

7-1. BLOCK DIAGRAMS (6)
CN0002
4 RF-KEY
3 RF-DATA
1 RF-LED
SWITCH
Q0014
CN0001
5 AV-LINK
6 MODE 3
I 2 C SWITCHES
Q0009
Q0010
7 12C-DISABLE
Q0007
Q0008
8 SCL
9 SDA
10 SIRCS
11 GROUP DELAY
12 FS100
TO
A BOARD
13 MAIN RY
SWITCH
CN0101
Q0002
15 COINCIDENCE
16 V SYNC
17 H SYNC
18 R TEXT
19 G TEXT
20 B TEXT
21 TXT VIDEO
22 RESET AUDIO
23 OCP
24 LED
25 OVP
34 MODE 2
35 MODE 1
36 AUDIO MUTE
37 LINE-MUTE
38 RESET 100
39 KEY
40 AGC
M2
( )
MICRO PROCESSOR
IC0004
COMPARATOR
7
IC0002 MICRO PROCESSOR
AV-LINK-IN
93 MODE 3 79 1
1 RF-DATA
AV-LINK-OUT 78 5
97 12C-DISABLE
IC0006
RF-ENABLE 54
95 RF-LED
A(0) 49 12 A(0) D(7) 21
81 SCLO
A(1) 40 11 A(1) D(6) 20
82
SDAO
A(2) 39 10 A(2) D(5) 19
76 SIRCS
A(3) 38 9 A(3) D(4) 18
80 GROUP DELAY
27 8 17
A(4) A(4) D(3)
52 VDS
A(5) 26 7 A(5) D(2) 15
17 MAIN-RY A(6) 23 6 A(6) D(1) 14
A(7) 15 5 A(7) D(0) 13
59 COINCIDENCE
A(8) 67 27 A(8) A(17) 30
55
VSYNC
A(9) 66 26 A(9) A(16) 2
53 HSYNC
A(10) 65 23 A(10) A(15) 3
48 R-TEXT
A(11) 64 25 29
A(11) A(14)
47 G-TEXT
A(12) 37 4 A(12) A(13) 28
46 B-TEXT
A(13)
36
32 TXT VIDEO
8
A(14)
IC0005
25
RESET-AUDIO
SDRAM (TELETEXT)
33
A(15)
24
OCP FLAG
51 20 A(0) D(7) 29
A(16)
28 LED
A(17) 50 19 A(1) D(6) 28
29 OVP/OCP
3 18 A(2) D(5) 27
A(17)-LN
2 MODE 2
D(0) A(3) D(4)
85 17 26
4 MODE 1
D(1) 86 16 A(4) D(3) 25
13 AUDIO-MUTE
D(2) 87 15 A(5) D(2) 23
18
MUTELINE
D(3) 88 14 A(6) D(1) 22
96 RESET 100
D(4) 89 13 A(7) D(0) 21
KEY
5
D(5) 90 3 A(8) A(17) 9
6 AGC
91 2 A(9) A(16) 10
D(6)
73 RESET
A(10) A(15)
D(7) 92 31 7
57 ROMBK.1
SDA1 84 1 A(11) A(14) 11
58 ROMBK.0
SCL1 83 12 A(12) A(13) 4
SWITCH
Q0012, Q0013
IC0001
NVM MEMORY
IC0003
7
RESET
5
3
6
IC0010
IC0007
INVERTER
A(15)
10 13
2 4 9 12
ABK(15) ABK(16)
IC0008
8 11
EX-OR
1
4
2
7-2. CIRCUIT BOARD LOCATION
ZG
ZB
H3
H1
H2
CB
AP
G
D
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.
• : B - bus.
• : RF signal path.
• : earth - ground.
• : earth - chassis.
- 40 -
Reference Information
RESISTOR RN : METAL FILM
RC : SOLID
ZR
FPRD : NON FLAMMABLE CARBON
FUSE : NON FLAMMABLE FUSIBLE
RS : NON FLAMMABLE METAL OXIDE
CR
RB : NON FLAMMABLE CEMENT
RW : NON FLAMMABLE WIREWOUND
: ADJUSTMENT RESISTOR
COIL LF-8L : MICRO INDUCTOR
CG CAPACITOR TA : TANTALUM
PS : STYROL
M2
PP : POLYPROPYLENE
PT : MYLAR
MPS : METALIZED POLYESTER
A
MPP : METALIZED POLYPROPYLENE
ALB : BIPOLAR
ALT : HIGH TEMPERATURE
ALR : HIGH RIPPLE
Note :
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note :
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.