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5
R7232
R7231
8
7
6
5
4
IC7203
1
2
3
4
C7209
R7233
R7230
R7236
3
47K
C7210
47/6.3V
30
29
IC7201
D789124AM503
2
TUNER
MICROCONTROLLER
1
2
R7240
0
R7216
R7217
1
A
Z
C7215
C7205
0.01
1
24
23
22
IC7204
LC74723M9629
CHARACTER
GENERATOR
4
3
1
2
3
IC7202
GND
R3111Q391ATR
(RESET)
OUT
VDD
1
2
Q7202
X7201
EF0EC7164T4
(7.16MHz)
R7239
R7228
47K
R7201
1K
C7204
C7213
R7237
TP7201
0.1
22P
4700
C7201
0.1
28
27
26
25
24
23
22
21
20
19
18
3
4
5
6
7
8
9
10
11
12
13
R7218
Z
B
C
NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.
C7208
R7203
120P
2200
C7207
1
L7202
BK2125HM102
21
20
19
18
17
16
15
14
13
4
5
6
7
8
9
10
11
12
L7201
C7214
18
C7206
0.01
Z
C7211
C7212
18P
22P
R7221 1K
R7222 1K
R7220 1K
R7224 1K
R7223 1K
R7229 1K
17
16
R7210
R7211
R7212
14
15
47K
47K
47K
R7214 4700
R7215 4700
R7213 47K
R7209 47K
R7208 47K
R7207 47K
R7206 47K
R7205 47K
R7204 47K
D
NOTE:
PARTS ENCLOSED IN DASHED LINES MARKED "Z" ARE NOT USED.
REC VIDEO SIGNAL
Q7201
(BUFFER)
SW7201
CH AUTO
EVQ23404M
SET
SW7202
EVQ23404M
CH UP
SW7203
EVQ23404M
CH DOWN
UNLESS OTHERWISE SPECIFIED:
PNP TRANSISTORS IS 2SA1576A106R,
NPN TRANSISTORS IS 2SC4081T106R,
DIODES IS MA111 AND
WATTAGE OF RESISTORS IS 1/10W.
L7203
BK2125HM102
E
F
TO TV TUNER I
12
VIDEO
13
VIDEO
7
SERIAL DATA 0
8
SERIAL CLOCK 0
6
DTS CS(H)
11
AFC
10
SIGNAL DETECT(L)
9
CH FREQUENCY LOCK(L)
14
DVC(H)
TO TV TUNER I
1
TUNER POWER ON(H)
TO TV TUNER II
15
+5V(SYS.CTL)
LSJB8023
G
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