23
D-NS707F
IC1 TA2154AFN-EL (MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
19
18
17
16
22
23
25
26
27
28
24
30
29
15
TV RF OUT
FM RF OUT
AM BYP
ASS
AM RF IN
RFVCC
AM OSC
TV FM OSC
OSC OUT
MODE2
MODE1
IF REQ
IF COUNT
LPF2B
LPF2A
L OUT
R OUT
LPF1
MPX IN
DET OUT
QUAD
AM IF IN
GND
FM IF IN
VCC
AGC
AM MIX
FM MIX
RF GND
FM RF IN
TV RF IN
AM
OSC
AM
MIX
FM/AM/TV
PW SW
SW
1/2
BUFF
LEVEL
DET
AM
DET
1/8 or
1/16
TV
OSC
FM
OSC
IF
BUFF
BUFF
BUFF
FM/TV
MIX
FM
RM
TV
RF
FM
DET
FM MPX
FM
IF
AF
AGC
AM
IF
• IC Block Diagrams