Description Of Major Ics - JVC RV-DP200BK Service Manual

Description of major ICs

AN7317(IC32) : ALC & Pre Amplifier
Pre-in
16
AN7317
1
Pre-in
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pre-NF Pre-out Rec-in
15 14 13
112k
60k
30k
Pre Rec
Pre
Rec
30k
60k
112k
2 3 4
Pre-NF Pre-out Rec-in
Pin Descriptions
Channel 1 Playback Amplifier Input
Channel 1 Playback Amplifier Negative Freed back
Channel 1 Playback Amplifier Output
Channel 1 Record Amplifier Input
Channel 1 Record Amplifier Output
ALC Low-Cut
ALC Time
Ground
Vcc
Ripple Filter
Record - Amplifier Mute
Channel 2 Record Amplifier Output
Channel 2 Record Amplifier Input
Channel 2 Playback Amplifier Output
Channel 2 Playback Amplifier Negative Freedback
Channel 2 Playback Amplifier Input
Rec-out Rec-Mute R.R.
12 11 10
Mute R.R.
A L C
5 6 7
Rec-out ALC ALC
Low-cut Time
RV-DP200BK
Vcc
9
8
GND
1-27