Ic Information - Pioneer SP-99D Service Manual

SP-99D, SP-D07
6. IC INFORMATION
@ The information shown in the list is basic information andmay not correspond
exactly to that shown in the schematic diagram.
Wi 1C9214AF (IC3771: AC-3 ASSY)
@ Analog Switch
@ Pin Assignment (Top View) @ Block Diagram
GND }1
GND C] 1
VOD
a
1 C4 C1
S10 240 510
S11 S41
$20 530 $11
$21
S31
320
$32
ce S21
VSS C3
C2
VSS
@ Pin Function
No. i
2 power supply operation: +B -+ VDD
OV— GND
Power supply (—) -B - VSS
1 power supply operation: +B > VDD
OV— GND, VSS
Power supply (+)
SW1 control Switch Connection
$10 O oo —Osi1
C1 o___} swi
$20 O oo —Q $21
co Ose
O S009
o —_ SWw4 "-
SW1 Input/output
SW2 Input/output
oSW3___y $39
$31
SW2 control ie ae $32
sw3
c3 o—__}
C1, C2, C3 SW1, SW2, SW3
SW3 Input/output
SW4 Input/output
SW4 control
40