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5-1. BLOCK DIAGRAMS (6)
CN100/1
IC103
1
CS DISABLE
CS DISABLE
11
P2.14
4
KEY2/SCL3.3
100
P6.5
AGC DEFEAT P3.2
6
KEY1/SCL3.3
97
P6.2
RESET AUDIO P3.7
7
INT-COL
5
P2.8 INT. COL
8
RESET
10
AVL-INT
12
P2.15 AVL INT
17
CVBS IN (TXT)
121
CVBSIA
TO
20
RESET
BOARD A
OUT
IC101
CN1000
21
TXT BLK
AUDIO MUTE P3.5
105
BLANK/CORBLA
TXTB
22
7
P2.10
26
PROT
8
P2.11 PROT
28
AC-ON/OFF
9
P2.12 AC ON/OFF
VP100
33
102
V SYNC
35
HP100
103
H SYNC
40
P2(13)
10
P2.13 VIPER WRITE
A(0)
37
A(1)
36
A(2)
35
A(3)
34
A(4)
33
A(5)
27
A(6)
26
A(7)
24
A(8)
23
A(9)
25
A(10)
28
A(11)
29
A(12)
30
A(13)
38
A(14)
39
A14/RAS
A(15)
40
A15/CAS
A(16)
P4.3/A16
22
A(17)
19
P4.1/A17
A(18)
P4.2/A18
18
A(19)
17
P4.3/A19
M2 (
MICRO PROCESSOR
AND TEXT DECODER
AGC-MON
P5.0
124
AGC-DEFEAT
MS SHUT DOWN
76
RESET AUDIO
81
RESET 100
RESET 100 P3.6
80
B
114
STDBY P3.4
78
G
113
R
112
AUDIO-MUTE
79
90
7
WP
3.12
IC104
P6.3
98
6
SCL1
P6.4
99
5
SDA1
RXDO
P3.11
89
TXDO
P3.10
88
D(0)
D(0)
D0
55
2
DQ0
IC105
A0
23
D(1)
D(1)
D1
A1
59
4
DQ1
24
D(2)
D(2)
D2
65
5
25
DQ2
A2
D(3)
D(3)
D3
71
7
DQ3
A3
26
D(4)
D(4)
D4
A4
70
8
DQ4
29
D(5)
D(5)
D5
64
10
A5
30
DQ5
D(6)
D(6)
D6
58
11
DQ6
A6
31
D(8)
D(8)
D8
A7
57
42
DQ8
32
D(9)
D(9)
D9
63
44
A8
33
DQ9
D(10)
D(10)
D10
67
45
DQ10
A9
34
D(11)
D(11)
D11
A10
72
47
DQ11
22
D(12)
D(12)
D12
66
48
A11
35
DQ12
D(13)
D(13)
D13
62
50
DQ13
BA0/A12
20
D(14)
D(14)
D14
BA1/A13
56
51
DQ14
21
D(15)
D(15)
D15
51
53
DQ15
/RAS
18
D(7)
13
DQ7
/CAS
17
UDQM
48
39
DQM
MEMCLK
43
38
CLK
/WE
16
CLKEN
45
37
CKE
LDQM
15
/WE
50
LDQM
49
D(7)
A(0)
IC107
31
Q7
A0
11
CSROM
46
A(1)
A1
15
Q0
10
RD
47
A(2)
17
A2
9
Q1
A(3)
19
Q2
A3
8
A(4)
21
Q3
A4
7
A(5)
25
Q4
A5
6
A(6)
27
CLKINB
Q5
A6
5
A(7)
A7
29
Q6
4
A(8)
16
Q8
A8
43
A(9)
18
Q9
A9
42
A(10)
A10
20
Q10
41
A(11)
22
Q11
A11
40
A(12)
26
Q12
A12
39
A(13)
A13
28
Q13
38
A(14)
30
Q14
A14
37
A(15)
32
Q15
A15
36
A(16)
A16
23
NC
35
A(17)
12
/E1
A17
3
A(18)
A18
14
/G
2
A(19)
)
A19
44
5-2. CIRCUIT BOARD LOCATION
CN100/2
5
15
19
TXTB
23
TO
BOARD A
ST.BY
24
CN1000
VM Board
VM
TXTG
25
TXTR
27
CVM Board
H2 Board
H
39
A
CN104
RXDO
3
TXDO
4
D1
BOOT
5
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.
- 36 -
Reference Information
RESISTOR
C Board
C
C
N
D1 Board
D2 Board
M2 Board
H Board
F3 Board
J
S1 Board
A2
COIL
CAPACITOR
A1
D2
A Board
A
B5 Board
D
J2 Board
G Board
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 d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
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