Block Diagrams (3); Circuit Board Location; Schematic Diagrams And Printed Wiring Boards - Sony FD Trinitron KV-32CS70B Service Manual

5-1. BLOCK DIAGRAMS (3)

IC0001
NVM MEMORY
7
6
5
CN0001
8 SCL
9 SDA
24 LED
10 SIRCS
AGC
40
6 MODE 3
25 OVP
11 GROUP DELAY
23 OCP
15 COINCIDENCE
13 MAIN RY
MAIN RELAY DRIVER Q0002
14 DGC RY
DEGAUSING COIL RELAY
DRIVER Q0003
20 B TEXT
TO A BOARD
CN0101
19 G TEXT
22 RESET AUDIO
18 R TEXT
36 AUDIO MUTE
D0001
12 FS 100
5 AV LINK
35 MODE 1
34 MODE 2
37 LINE MUTE
17 H SYNC
16 V SYNC
TXT VIDEO
21
RESET 100
38
39 KEY
7 12C DISABLE
12C SWITCH
Q0007, Q0008
DISABLE
DRIVER
Q0011
12C SWITCH
Q0009, Q0010
VM ( )
VELOCITY
MODULATION
CN7442
VM AMPLIFIER
VM
1 VM BUFFER
BUFFER
Q7408, Q7409
Q7400, Q7401
TO A BOARD
CN7000
4 QP (-)
5 QP (+)
IC0004
COMPARATOR
(AV-LINK CIRCUIT)
1 8
2 + 7
3 - - 6
4 + 5
IC0003
RESET CIRCUIT
RESET AND SWITCH
3
Q0012, Q0013
IC0002
MICRO CONTROLLER
83 SCL 1 NVM WL* 98
84 SDA 1 RESET 73
IC0005
28 LED AV LINK OUT 78
SRAM
(TELETEXT PAGES STORAGE)
76 SIRCS AV LINK IN 79
A(0) A(0)
6 AGC 49 20
A(1) A(1)
22 AGC 40 19
A(2) A(2)
93 MODE 3 (1) 39 18
A(3) A(3)
94 MODE 3 (2) 38 17
A(4) A(4)
29 OVP/OCP 27 16
A(5) A(5)
80 GROUP DELAY 26 15
A(6) A(6)
24 OCP FLAG 23 14
A(7) A(7)
59 COINCIDENCE 15 13
A(8) A(8)
67 3
17 MAIN RY
A(9) A(9)
66 2
A(10) A(10)
65 31
16 DGC RY A(11) A(11)
64 1
A(12) A(12)
37 12
46 B TEXT
A(13) A(13)
36 4
47 G TEXT
A(14) A(14)
8 11
25 RESET AUDIO
A(15) A(15)
33 7
48 R TEXT
A(16) A(16)
51 10
13 AUDIO MUTE
A(17) A(17)
50 9
43 COR*
RD* 9 32
WR* 10 5
D(0) D(0)
52 VDS 85 21
D(1) D(1)
4 MODE 1 86 22
D(2) D(2)
2 MODE 2 87 23
D(3) D(3)
18 MUTE LINE 88 25
D(4) D(4)
53 H SYNC 89 26
D(5) D(5)
55 V SYNC 90 27
D(6) D(6)
32 TXT VIDEO 91 28
D(7) D(7)
96 RESET 100 92 29
5 KEY
97 12C DISABLE
82 SDA 0
81 SCL 0
71 XTAL OUT
X0001
70 XTAL IN
M ( )
MICRO PROCESSOR
CN7444
QP-
QP (-) 1
QP (-) 2
VM AMPLIFIER
VM BUFFER VM OUT
BUFFER
Q7402 Q7406 QP+
QP (+) 3
Q7403
QP (+) 4
VM AMPLIFIER
VM BUFFER VM OUT VM 7
BUFFER
Q7404 Q7407
VM
Q7405
VM 8
NECK ASSY

5-2. CIRCUIT BOARD LOCATION

C Board
C
C
VM Board
VM
CVM Board
H
A
H6 Board
F5 Board
D1
D
A Board
G 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.
- 26 -
Reference Information
RESISTOR RN : METAL FILM
RC : SOLID
FPRD : NON FLAMMABLE CARBON
FUSE : NON FLAMMABLE FUSIBLE
N
RS : NON FLAMMABLE METAL OXIDE
RB : NON FLAMMABLE CEMENT
RW : NON FLAMMABLE WIREWOUND
M Board
J
S1 Board : ADJUSTMENT RESISTOR
A2
COIL LF-8L : MICRO INDUCTOR
CAPACITOR TA : TANTALUM
D Board
A1 PS : STYROL
A Board
D2
A
PP : POLYPROPYLENE
PT : MYLAR
MPS : METALIZED POLYESTER
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
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
sont d'une importance