Circuit Operating Descriptions
7-28
7-5 Hi-Fi Audio
(1) Outline
Hi-Fi circuit consists of HiFi audio LPF, VCO, BPF, FM detect circuit and switching noise compensator, PRE-AMP
etc. Linear audio consists of an ALC circuit,REC EQ circuit and a PB EQ circuit.
Hi-Fi and Linear audio share the same input selector,output selector and mute circuit.
1) REC Mode (L-CH Only)
IN
SEL
REC
AMP
INPUT
ALC
LPF
PNR
MOD
26
REC FM
OUT
SEL
CONV. &
LINE AMP
80
LINE
OUT
LINEAR IN
LINEAR OUT
4
6
PRE
AMP
INPUT
BPF
DEMOD
LPF
PNR
CONV. &
LINE AMP
80
LINEAR IN
OUT
SEL
4
LINE
OUT
Fig. 7-25 REC Mode (L-CH Only)
Fig. 7-26 PB Mode (L-CH Only)
2) PB Mode (L-CH Only)
