PB/REC PRE AMP FOR 2 DECK
S1A0291X01
APPLICATION INFORMATION
1. R/P SWITCH
Apply R/P input voltage at PIN 8.
PLAY: 0V (GND)
REC: 4.5V − 12V (Do not apply above 13V).
Only valid A/B input select in playback mode.
In record mode, the playback A-input is available and the ALC is turned on by record bias.
A. Record Mode Schematic
PR
VCC
R/P SW
8
CONTROL
A/B SELECT SW
5
CONTROL
REC BIAS ON
PLAYBACK
BIAS
A/B SELECT
DISABLE
A-INPUT AVAILABLE A-INPUT
BIAS
B-INPUT BIAS
5