Service manual

CD-DD4500
– 64 –
1*-4* OUT4-OUT1 Port output.
5 AVDD Analog positive power supply terminal.
6 SWin Volume input.
7 GNDS GND terminal.
8 SRin Volume input.
9 SLin Volume input.
10 GNDC GND terminal.
11 Cin Volume input.
12 GNDR GND terminal.
13 Rin Tone input.
14 GNDL GND terminal.
15 Lin Tone input.
16 BYPASSR Volume input to L/R when bypassed.
17 BYPASSL Volume input to L/R when bypassed.
18 LTRE Tone treble frequency adjustment terminal.
19 LBASS3 Tone bass frequency adjustment terminal.
20 LBASS2 Tone bass frequency adjustment terminal.
21 LBASS1 Tone bass frequency adjustment terminal.
22 CR2 Tone output terminal.
23 RBASS2 Tone bass frequency adjustment terminal.
IC602 VHiM62446FP-1: 6-Ch Electronic Volume (M62446FP)
Terminal
Name
Pin
No.
Function
24 RBASS3 Tone bass frequency adjustment terminal.
25 RTRE Tone treble frequency adjustment terminal.
26 RBASS1 Tone bass frequency adjustment terminal.
27 CR1 L/R volume input.
28 CL2 Tone output terminal.
29 CL1 L/R volume input.
30 AVSS Analog negative power supply terminal.
31 Lout L output.
32 Rout R output.
33 Cout Volume output.
34 SLout Volume output.
35 SRout Volume output.
36 SWout Volume output.
37 AGND Analog GND terminal.
38 DGND Digital GND terminal.
39 LATCH Latch input terminal.
40 DATA Data input terminal.
41 CLK Clock input terminal for data transfer.
42 DVDD Digital power supply terminal.
Terminal
Name
Pin
No.
Function
Figure 64 BLOCK DIAGRAM OF IC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
33
34
35
36
37
38
39
40
41
42
32
31
30
29
28
27
26
25
24
23
22
OUT4
OUT3
OUT2
OUT1
AVDD
SWin
GNDS
SRin
SLin
GNDC
Cin
GNDR
Rin
GNDL
Lin
BYPASSR
BYPASSL
LTRE
LBASS3
LBASS2
LBASS1
DVDD
CLK
DATA
LATCH
DGND
AGND
SW out
SRout
SLout
Cout
Rout
Lout
AVSS
CL1
CL2
CR1
CR2
RTRE
RBASS3
RBASS2
RBASS1
OUT-
PUT
PORT
MCU
I/F
volume
volume
volume
volume
volume
volume
tonetone
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.