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12.7. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram (TU)
P:Power Supply Section:(Page:
A:AV IO Section:(Page:
B
)
TU:Tuner Section:(Page:
C
)
G
T:Timer Section:(Page:
D
)
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.
F
E
12
11
10
9
8
7
6
5
4
3
D
13
14
15
16
17
18
19
20
21
22
C
IC7301
AUDIO MULTIPLEX DECODER
IC-DETAIL BLOCK DIAGRAM
24
23
22
21
20
19
B
MUTE
MODE
REGULATOR
OUT
PILOT
-6dB
LEVEL DET
MUTE
STEREO
PILOT
L-R
PLL
CANCELLER
DEMOD
ST/SAP
SW
SAP
DEMOD
A
LPF
SAP BPF
PILOT
DET
SIF DEMOD
1
2
3
4
5
6
1
2
A
)
C0CBCDC00052
1
2
3
FL7301
J0B4504AA026
or
EFCT4R5MS5W
G_SIF_C
3
1
R7308
0
2
2
1
23
24
TL7301
R7306
4700
C7321
1u
18
17
16
15
14
13
MATRIX
L+R
L-R/SAP
LPF
dbx PROCESSOR
OFFSET
LPF
CANCELL
CONTROL
SAP
SYSTEM
ST
DET
CONTROL
SAP
ADDRESS
ILL
DECODE
7
8
9
10
11
12
3
4
5
IC7801
5
C7807
1u
4
Q7801
2SB1218A0L
or
B1ADCF000154
R7801
680
Q7802
QR7801
2SD1819A0L
UNR511200L
R7802
100K
6
7
47
LB7803
J0JHC0000032
C7826
C7829
F2A0J470A824
0.01
LB7807
[J0JCC0000103]
C7830
C7839
F2A0J470A824
0.01
LB7809
J0JHC0000032
LB7816
D7801
C7827
C7835
ERJ3GEY0R00V
R7803
ERDS2TJ102T
B0BA03000015
0.01
F2A1H1R0B032
LB7810
J0JCC0000103
C7825
LB7811
J0JCC0000103
18P
C7828
LB7812
ERJ3GEY0R00V
18P
C7831
LB7813
ERJ3GEY0R00V
0.1
G_SIF_A
G_SIF_B
LB7814
J0JHC0000032
C7823
C7836
0.01
R7804
0
F2A0J470A824
R7805
0
LB7815
ERJ3GEY0R00V
IC7801
BOOSTER +5V SWITCHING REG.
IC-DETAIL BLOCK DIAGRAM
5
VOUT
IC
NR
GND
4
2
DMR-EZ17P
Tuner Section(Main P.C.B.(3/4))
Schematic Diagram(TU)
8
9
DMR-EZ17P
C
TU7801
ENGF6703KF
BOOSTER_5V
AUDIO_IN
RFC_SW
RFC_5V
RFC_ON/OFF
VIDEO_IN
AGC
TU_MONITOR
TUNER_5V
NC
30V
IIC_SDA
IIC_CLK
AFT
SIF_OUT
VIDEO_OUT
VIF_5V
IFD_OUT1
IFD_OUT2
IF_AGC
IF OUT
1
VIN
H
:ON
3
10
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