JVC FS-A52 Service Manual page 48

FS-A52
AN22000A-W (IC601) : RF head amp.
1. Pin layout
2. Block diagram
CEA
3. Pin function
Pin No.
1 APC amp input terminal.
2 APC amp output terminal.
3 Power supply.
4 RF amp negative input terminal.
5 RF amp output terminal.
6 AGC input terminal.
7 AGC loop filter capacitor connection terminal.
8 AGC output terminal.
9 Capacitor connection terminal for HPF-amp.
10 3TENV output terminal.
11 Capacitor connection terminal for RF enberope detection.
12 BDO output terminal.
13 Capacitor connection terminal for RF enverope detection.
14 OFTR output terminal.
15 NRDET output terminal.
16 Ground terminal.
1-48
32 31 30 29 28 27 26
1 2 3 4 5 6
3TOUT NRFDET FEOUT
FEN
A
C
Function
25 24 23 22 21 20
7 8 9 10 11 12 13 14 15 16
TEN TEOUT
B E
D
Pin No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
19 18 17
TEBPF VDET LD
F VREF
Function
VREF output terminal.
VDET output terminal.
VDET input terminal.
TE amp. output terminal.
TE amp. negative input terminal.
FE amp. negative input terminal.
FE amp. output terminal.
GCTL & APC terminal.
FBAL control terminal.
TBAL control terminal.
Tracking signal input terminal 1.
Tracking signal input terminal 2.
Focus signal input terminal 4.
Focus signal input terminal 3.
Focus signal input terminal 2.
Focus signal input terminal 1.
PD