JVC MX-KA6 Series Service Manual page 27

AN22000A (IC611) : CD-DA Head Amp.
1. Terminal layout
3
1
16
3. Block diagram
4 5 6 7
RFOUT
RF_EQ
NRFDET
32
AMP GCA
31
30
AMP GCA
29
27 AMP GCA
28 AMP GCA
+
17
-
24
2. Pin function
2 Pin
Symbol I/O
No.
1 PD I
2 LD O APC Amp. output terminal
3 VCC -
4 RFN I
5 RFOUT O RF adder Amp. output terminal
6 RFIN I
7 CAGC I
8 ARF O AGC output terminal
9 CBA I
10 3TOUT O 3 TENV output terminal
17
11 CBOO I
12 BDO O BDO output terminal
13 COFTR I
14 OFTR O OFTR output terminal
8 11 12 13 14
AGC BDO OFTR
3TENV
BCA
-
SUBT
+
BCA
-
SUBT
BCA
+
BCA
VDET
-
+
LD
PD
26 25 16 3
Pin
Function
No.
APC Amp. input terminal 15 NRFDET O NRFDET output terminal
16 GND
Power supply terminal 17 VREF
RF adder Amp. inverting input 18 VDET
terminal 19 TEBPF
20 TEOUT
AGC input terminal 21 TEN
Input terminal for AGC loop
filter capacitor 22 FEN
Capacitor connecting terminal 23 FEOUT
for HPF-Amp. 24 GCTL
25 FBAL
Capacitor connecting terminal 26 TBAL
for envelope detection on the 27 E
darkness side 28 F
29 D
Capacitor connecting terminal 30 B
for envelope detection on the 31 C
light side 32 A
9
10
15
22
23
21
20
19
18
2
1
Function
Symbol I/O
- Ground
O VREF output terminal
O VDET output terminal
I VDET output terminal
O TE Amp. output terminal
I TE Amp. inverting input
terminal
I FE Amp. inverting input
terminal
O FE Amp. output terminal
O GCTL & APC terminal
O FBAL control terminal
O TBAL control terminal
I Tracking signal input terminal 1
I Tracking signal input terminal 2
I Focus signal input terminal 4
I Focus signal input terminal 3
I Focus signal input terminal 2
I Focus signal input terminal 1
MX-KA6
1-27