XT-P50V
7
7
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM – AUDIO Section –
1
2
3
4
ANT8
ANT7
ANT5
ANT6
ANT7
ANT8
CT100
DIVERSITY VCO
FREQUENCY
DIVERSITY ANTENNA
CONTROL
IC102
5
+B 9V,
25mA
6
+B 5V,
35mA
7
+BT
31V
13
+B 9V,
150mA
14
A OUT
– 14dBs
9
DATA
8
CLOCK
10
CE
TV TUNER UNIT
TU100
1
ANT1
2
ANT2
3
ANT3
4
ANT4
LINE AMP, INPUT SELECT SWITCH
IC111
R-CH
R-CH
MUTING
Q114
R-CH
MUTING
CONTROL SWITCH
Q120, 121
• SIGNAL PATH
: AUDIO (AUX)
: AUDIO (TV)
: VIDEO (TV)
ANT IN
INPUT
L
R
AUDIO
J103 (1/2)
VIDEO
OUTPUT1
L
R
AUDIO
J102 (1/2)
R-CH
OUTPUT2
L
R
AUDIO
J104 (1/2)
+31V
+5V
+9V
L102
L101
L103
• R-ch is omitted due to same as L-ch.
ANTENNA 4
SWITCH
Q105
ANTENNA 3
SWITCH
Q103
ANT6
ANTENNA 2
SWITCH
Q101
ANT5
ANTENNA 1
SWITCH
Q100
+5V
L115
17
NICAM
16
AFS
18
VIDEO
OUT
NOISE CANCELLER
IC104
D128
D126
MUTING
CONTROL SWITCH
Q115
B+5V
D101
MUTING
Q119
R-CH
D129
R-CH