Pioneer VSX-D407 Service Manual page 52

VSX-D409, VSX-D309
M62446FP (D.D & INPUT ASSY : IC103)
• Sound Controller IC (Volume and Tone Control)
Block Diagram
OUT4
1
OUT3
2
OUT2
3
OUT1
4
AVDD
5
SWin
6
GNDS
7
SRin
8
SLin
9
GNDC
10
Cin
11
GNDR
12
Rin
13
GNDL
14
Lin
15
BYPASSR
16
BYPASSR
17
LTRE
18
LBASS3
19
LBASS2
20
LBASS1
21
Pin Function
No. Pin Name
1 OUT4
2 OUT3
Output port (open drain of PchTr)
3 OUT2
4 OUT1
5 AVDD Analog positive power supply port
7 GNDS
10 GNDC
GND (connect to analog ground)
12 GNDR
14 GNDL
6 SWin
8 SRin
Volume input
9 SLin
11 Cin
36 SWout
35 SRout
Volume output
34 SLout
33 Cout
13 Rin
TONE input
15 Lin
16 BYPASSR
L and R Volume input at bypass
17 BYPASSL
31 Lout L output
32 Rout R output
52
17-24k
17-24k
17-24k
17-24k
S
T
17-24k
S
T
17-24k
12k
12k
<L>
300k
Function
Volume
<SW>
Volume
<SR>
Volume
<SL>
Volume
<C>
Volume
<R>
Volume
<L>
12k
<R>
300k
No. Pin Name
18 LTRE
TONE TREBLE frequency control port
25 RTRE
19 LBASS3
24 RBASS3
20 LBASS2
TONE BASS frequency control port
23 RBASS2
21 LBASS1
22 RBASS1
26 CR2
TONE output port
28 CL2
27 CR1
L and R volume input
29 CL1
31 Lout L output
32 Rout R output
30 AVSS Analog negative power supply port
37 AGND Analog ground port
38 DGND Digital ground port
39 LATCH Latch input port
40 DATA Data input port
41 CLK Clock input port for data transmission
42 DVDD Digital power supply port
DVDD
42
CLK
41
MCU
DATA
40
I/F
LATCH
39
DGND
38
AGND
37
SWout
36
SRout
35
SLout
34
Cout
33
Rout
32
Lout
31
AVSS
30
CL1
29
CL2
28
CR1
27
CR2
26
12k
RTRE
25
RBASS3
24
RBASS2
23
RBASS1
22
Function