15
15
4-3. BLOCK DIAGRAM — TUNER UNIT (AUDIO) SECTION (XT-993V) —
XTL-6100MK2
R-CH
R
J5-2,3
-2
-3
-2
-3
L
INPUT 1
AUDIO
R-CH
R
J6-2,3
L
INPUT 2
AUDIO
J1
ANT IN
T1,2
TRAP
T3
VCO
AFT
TUNER BLOCK
TU1
IN
IF2 11
AGC
VCO
MIX
VIF
V DET
EQ
VIDEO
VIF
RF
AGC
VCO
1
5
4
9
1
4
3
SF1
BT
SCL
SDA
VOLTAGE
CONTROL
IC3
1
4
B+
(S +9V)
VIDEO
DET
LATCH
Q20, 21
EQ
AMP
RF
AGC
HPF
FM
DET
HPF
VCA
GATE
PULSE
DET
LPF
PILOT
CANCEL
LATCH
Q22, 23
CF1
CF2
5.5MHz
CF3
6MHz
VIDEO
AMP
Q24
47
SYSTEM CONTROL
IC12 (2/2)
35
42
40
60
44
AFT
VIDEO1
VIDEO2
VOL
S. MUTE
29
RESET
21
XIN
22
XOUT
14 PLL DATA
15 PLL CLK
12 P.B
49 POWER
1
2
10
TONE
AMP
Q30, 31
RESET
IC1
LEVEL
DETECT
Q32
VOLUME
CONTROL
IC16
R-CH
LEVEL
ADJ.
Q33
12
9
6
7
4
8
14
13
15
AUDIO SWITCH
IC14
B A INH
4
5
X2
8MHz
R-CH
IC27
5
7
IC29 (1/2)
3
1
IC15
5
7
IC28
5
7
NOISE CANCELLER
IC33
VIDEO
2nd
SIF
FM
DET
IN
NF
OUT
VIDEO
SECTION
VIDEO
SECTION
18
19
14
11
12
3
13
21
10
8
6
1
24
AFT
RF AGC VR
VR1
AGC
VIF/SIF PROCESSOR
IC13
Q106
POWER
ON/OFF
Q3, 4
B+
SWITCH
Q2
B+
(S +12V)
D5
FU1
3.15A
R-CH
CN2 (2/2)
J10-2
3
AUDIO
SONY NAVI
(NVX)
AUDIO
NAVI IN
+9V REG
IC4
B+
(S +9V)
B+
(S +5V)
1
3
+5V REG
IC2
1
3
04
AUDIO MUTE
DRIVE
Q72, 73
MUTE
Q81
AUDIO
MUTE
Q80
R-CH
R
J8-2,3
-2
-3
L
OUTPUT
AUDIO
AUDIO
VIDEO
SECTION
SIMUL
VIDEO
SECTION
V2
V1
IC29 (2/2)
5
7
MUTE
DRIVE
Q35
Q96
MUTE
• Signal path
: VIDEO
: AUDIO
D6
2
2
4
3
UK/CCIR (HK/CH)
X2
X1
X
X0
10
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Q
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
