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TV TUNER C.B.A.
ROD
ANTENNA
UHF/VHF TUNER/TV DEMODULATOR UNIT
J1
1
ANT
SERIAL CLOCK 0
SERIAL DATA 0(TUNING DATA)
SIGNAL DETECT(L)
CH FREQUENCY LOCK (L)
AUDIO
22
IC7204 (OSD CHARACTER MIX)
VIDEO
25
15
SYNC
17
SEPARATION
9
10
11
23
OSD RESET(H)
+31.5V
16
+5V
11
IC7201 (TUNER MICROCONTROLLER)
14
OSD RESET(H)
29
SERIAL DATA 1
28
SERIAL CLOCK 1
26
OSD CS
DTS CS(H)
12
16
DTS CS(H)
14
17
SERIAL CLOCK 0
13
18
SERIAL DATA 0(TUNING DATA)
AFC
21
5
AFC
20
6
SIGNAL DETECT(L)
15
7
CH FREQUENCY LOCK (L)
FL7001
Q7201
3MHz
13
BUFFER
3
LPF
OSD
X7201
CHARACTER
2
MIX
7.16 MHz
3.58MHz
4
OSC
BPF
3
CHARACTER
GENERATOR
L7201,
C7211, C7112
CONTROL
6
L/C OSC
7
VDD(+5V)
12
VDD(+5V)
16
VDD(+5V)
24
Q7108, Q7109, D7107
TP3
+31.5V
REGULATOR
TP4
VDD(+5V)
25
IC7202
RESET (L)
19
1
RESET
IC7101
SHUNT
REGULATOR
(+5V ERROR DETECTOR)
TUNER POWER ON (H)
8
SW7203
CH DOWN
CH DOWN SW ON (L)
11
SW7202
CH UP
CH UP SW ON (L)
12
SW7202
CH AUTO SET
CH AUTO SET SW ON (L)
13
TUNER VIDEO SIGNAL
Q7002
1
BUFFER
Q7001
6
BUFFER
When the camcorder is turned on with the TV Tuner
cable connected to the Camcorder TV Tuner jack,
DC+2V bias with chrominance signal is output to the
TV Tuner cable(White wire line).
T7103
(SWITCHING TRANSFORMER)
D7106
+33V
6
D7105
+5V
5
4
7
2
3
2
9
1
Q7107
+5V ERROR
DET ON
Q7106
5
4
COMPARATOR
+
V-REF(2.465V)
-
ERROR SIGNAL
2
(SWITCHING CONTROL)
TUNER AUDIO SIGNAL
TV TUNER CABLE
TUNER AUDIO
A
TUNER LUMINANCE
B
TUNER CHROMINANCE
/TUNER DET(+2V)
W
UNREG
R
Q7101, Q7102,
Q7103, Q7104
TUNER
TUNER POWER ON (H)
POWER ON/OFF
G
CONTROL
Q7105
CAMCORDER
TV TUNER JACK
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