Block Diagrams; Circuit Board Location; Schematic Diagrams And Printed Wiring Boards - Sony FD Trinitron KV-32FQ70B Service Manual

5-1. BLOCK DIAGRAMS (4)

CN0003
TO D2 BOARD
1 RY SIGNAL
CN6804
NVM
MEMORY
IC0001
5
7
6
CN0001
8 SCL
9 SDA
24 LED
10
SIRCS
40 AGC
6 MODE 3
25 OVP
11 GROUP DELAY
23 OCP
15 COINCIDENCE
13 MAIN RY
MAIN RELAY DRIVER Q0002
14 DEGAUSING COIL RELAY
DGC RY/AC ON-OFF
DRIVER Q0003
20 B TEXT
TO A BOARD (2/2)
CN0101
19 G TEXT
22 RESET AUDIO
18 R TEXT
36 AUDIO MUTE
12 FS 100
5 AV LINK
35 MODE 1
34 MODE 2
37 LINE MUTE
17 H SYNC
16 V SYNC
21 TXT VIDEO
38 RESET 100
39 KEY
7 12C DISABLE
12C SWITCH
(CONNECT
12C BUS 0
AND BUS 1
TOGETHER)
Q0007,
Q0008
12C DISABLE
DRIVER (CS)
Q0011
12C SWITCH
(CONNECT
12C BUS 0
AND BUS 1
TOGETHER)
Q0009,
Q0010
IC0006
12 A(0)
11 A(1)
10 A(2)
9
A(3)
8 A(4)
7 A(5)
6 A(6)
5 A(7)
27
A(8)
26 A(9)
23 A(10)
COMPARATOR
25 A(11)
(AV-LINK CIRCUIT)
IC0004 4
A(12)
28 A(13)
8
1
29 A(14)
ABK(15)
2
7 3 A(15)
ABK(16)
2
A(16)
A(17)-LN
6
3 1
A(17)
13 D(0)
4 5
14 D(1)
15 D(2)
17
D(3)
RESET
CIRCUIT
18 D(4)
IC0003
SWITCH
19 D(5)
NVM WC* CONTROL 3
20 D(6)
DURING RESET Q0013
21
D(7)
SRAM (TELETEXT
MICRO CONTROLLER PAGES STORAGE)
IC0002 IC0005
A(0) A(0)
49 20
28 LED
A(1) A(1)
40 19
76 SIRCS
A(2) A(2)
39 18
6 AGC
A(3) A(3)
38 17
22 AGC
A(4) A(4)
27 16
93 MODE 3 (1)
A(5) A(5)
MODE 3 (2) 26 15
94
A(6) A(6)
OVP/OCP 23 14
29
A(7) A(7)
GROUP DELAY 15 13
80
A(8) A(8)
OCP FLAG 67 3
24
A(9) A(9)
66 2
59 COINDIDENCE
A(10) A(10)
65 31
17 MAIN RY
A(11) A(11)
64 1
A(12) A(12)
37 12
16 DGC RY/AC ON-OFF
A(13) A(13)
36 4
A(14) A(14)
8 11
46 B TEXT
A(15) A(15)
33 7
47 G TEXT
A(16) A(16)
51 10
25 RESET AUDIO
A(17) A(17)
50 9
48 R TEXT
9 32
RD*
13 AUDIO MUTE
43 COR* WR* 10 5
D(0) D(0)
85 21
D(1) D(1)
86 22
52 VDS
D(2) D(2)
87 23
4 MODE 1
D(3) D(3)
88 25
D(4) D(4)
89 26
2 MODE 2
D(5) D(5)
90 27
18 MUTE LINE
D(6) D(6)
91 28
53 H SYNC
D(7) D(7)
92 29
55 V SYNC
NVM WL* 98
32 TXT VIDEO
96 RESET 100 RESET 73
5 KEY AV LINK OUT 78
97 AV LINK IN 79
12C DISABLE
IC0010
AMPLIFIERS
A(15)
10
IC0007
BUFFER AMPLIFIER
ABK(16)
11
82 SDA 0
ROMBK.1 58 2 4 9
IC0008
COMPARATOR
ABK(15)
1 8
4 12
ROMBK.0 57 2
81 SCL 0
83 SCL 1
84 SDA 1
71
M2 (
70
MICRO PROCESSOR
69

5-2. CIRCUIT BOARD LOCATION

VM Board
VM
H1 Board
CVM Board
H
A
F1 Board
D1
A Board
5-3. 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.
)
- 28 -
Reference Information
RESISTOR RN
RC
C Board C
FPRD
C
FUSE
N
RS
D Board RB
D2 Board
M2 Board RW
J
S1 Board
A2
COIL LF-8L
CAPACITOR TA
PS
A1
D2 A Board
A
PP
D
PT
G Board
MPS
MPP
ALB
ALT
ALR
Note :
The components identified by shading
and marked
Replace only with the part numbers
specified in the parts list.
Note :
Les composants identifiés par une trame et
par une marque
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
: METAL FILM
: SOLID
: NON FLAMMABLE CARBON
: NON FLAMMABLE FUSIBLE
: NON FLAMMABLE METAL OXIDE
: NON FLAMMABLE CEMENT
: NON FLAMMABLE WIREWOUND
: ADJUSTMENT RESISTOR
: MICRO INDUCTOR
: TANTALUM
: STYROL
: POLYPROPYLENE
: MYLAR
: METALIZED POLYESTER
: METALIZED POLYPROPYLENE
: BIPOLAR
: HIGH TEMPERATURE
: HIGH RIPPLE
are critical for safety.
sont d'une importance