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12.11. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram (TU)
G
F
C7317
6.3V 47
44
43
42
41
40
39
38
37
36
35
34
1
OUT L
E
2
OUT R
LB7305
J0JCC0000080
3
VDDA1/CDE1
C7324
0.1
4
VSSA1/N.C
5
VSSD1/N.C
IC7301
6
VDDD1/CDE2
C1AB00002225
LB7301
J0JCC0000124
7
VSSD2/AGND
8
VDEC2/AF1I
9
TP2/N.C
10
NICAM/AF1D
C7314
33P
11
TP1/N.C
D
12
13
14
15
16
17
18
19
20
21
22
K7303
0
C
R7322
0
B
M:Main Net Section (Page:
A
AV:AV I/O Section (Page:
B
)
C
TU:Tuner Section (Page:
)
T:Timer Section (Page:
D
)
A
NOTE:DO NOT USE THE PART NUMBER SHOWN ON THIS DRAWING FOR ORDERRING.
THE CORRECT PART NUMBER IS SHOWN IN THE PARTS LIST,AND MAY BE
SLIGHTLYDIFFERNT OR AMENDED SINCE THIS DRAWING WAS PREPARED.
1
2
IC7302
C0EBH0000454
NC
NC
SCK/AF21
33
OUT
VDD
GND
WS/AF20
32
C7319
0.1
SD0/LPF
31
R7325
220
SDA
30
R7324
220
SCL
29
VDDA3/VCC
28
C7335
0.1
VSSA3/VCC
27
R7303
R7304 100
47K
CRESET/CAF2
26
C7301 0.1
R7326
0
SIF1/IFINT
25
C7333 0.1
C7334
VREF1/CAF1
24
50V 2.2
SIF2/N.C
23
C7305
6.3V 100
C7304
0.1
C7303
6.3V 100
C7302
100P
C7823
22P
C7824
22P
)
3
4
5
TU7802
C7826
ENGF7602GF
C7820
2200P
680P
K7801
0
LB7801
J0JHC0000032
1
C7802
C7801
C7821
ANT_5V
0.01
6.3V 47
270P
NC
R7802
D7801
C7803
C7804
B0BA03000015
1K
1
0.01
NC
R7803
220
SW
TUNER_5V
NC
SIF_OUT
K7803
0
NC
C7807
R7804
470
33P
SCL
C7808
R7805
470
33P
SDA
RF_AGC
LB7802
J0JHC0000032
VIF_5V
C7809
C7810
6.3V 47
0.01
NC
C7811
C7812
BTL_30V
LB7803
6.3V 47
0.01
J0JHC0000032
NC
LB7804
C7813
J0JCC0000103
2200P
AFT_OUT
VIDEO_OUT
K7810
K7811
K7805
K7812
K7813
6
7
63
DMR-EH67GN / DMR-EH67GC / DMR-EH67GCS
IC7301
DECODER IC
IC-DETAIL BLOCK DIAGRAM
44
43
42
41
40
39
38
37
36
35
AF SWITCH
1
2
DIGITAL
IDENTIFICATION
3
PILOT
NARROW-BAND PLL
4
STEREO
DECODER
STEREO
ADJUST
IIC BUS
5
TRANSCEVER
6
POWER
7
SUPPLY
8
AF
AF
AMPLIFIER
AMPLIFIER
1
2
9
10
FM DEMODULATOR
FM DEMODULATOR
NARROW-BAND
NARROW-BAND
PLL SC1
PLL SC2
11
12
13
14
15
16
17
18
19
20
21
IC7302
RESET IC
IC-DETAIL BLOCK DIAGRAM
OUT
1
3
IN
-
+
Vref
GND
2
DMR-EH67GN/GC/GCS
Tuner Section (Main P.C.B. (3/4))
Schematic Diagram (TU)
8
9
10
C
34
33
32
31
30
29
28
27
26
25
24
23
22
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