Pioneer VSX-D2011-S Service Manual page 136

1
BU4094BCF (MAIN CONTROL ASSY: IC502)
• Expansion IC
A
Pin Function
No. Pin Name
1 DEM_STP
2 DEM_RST
3 NJM2279_SW1
4 NJM2279_SW2
5 NJM2596_SW2
6 NJM2596_SW3
7 NJM2596_SW4
8 NJM2596_SW5
B
BU4094BCF (MAIN CONTROL ASSY: IC503)
• Expansion IC
C
Pin Function
No. Pin Name
1 OSD ON
2 TC9215_C34
3 PHONO GAIN
4 DSDM
5 TC74HC4053_INH
6 TC74HC4053_A
7 FAN DRIVE
8 LOFAN
D
E
F
136
1
2
Demodulator oscillation OFF/ON
Demodulator reset L: RESET
NJM2279 video control of sub room system
NJM2596 video control of main system
ON at OSD on
Switch the DSP/DIRECT/MULTI CH IN of surround signal H: Multi ch input path
"H" at PHONO equalizer ON
For SACD "L" fixed
Select the Component/D4 input (2 inputs → 1 output)
ON when rotates the FAN
Not used "H" fixed
2
3
Pin Function
Pin Function
VSX-D2011-S
3
4
Active
H
L
H
H
H
H
Active
H
H
H
4