Ic Block Diagrams And Descriptions - Onkyo R-805TX Service Manual

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IC BLOCK DIAGRAMS AND DESCRIPTIONS

TC9184AP(ELECTRONIC TONE CONTROL)
2
BASS+
BASS-
3
COM
4
5
TREBLE-
TREBLE+
6
Pin No.
1
16
2/15
3/14
5/12
6/11
TE
L 13942296513
4/13
7
8
9
10
TC9273N-10 (Analog Switch Array)
S1 2
S2 3
S3 4
S4
5
S5 6
S6 7
S7
8
S8
9
S9
10
S10
11
www
S11
12
LEVEL SHIFTER+SHIFT REGISTER
.
13
GND
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V V GND
SS DD
1 16 7
Symbol Function
VSS
Power supply voltage terminals (Analog section)
VDD
BASS+ Volume terminal
BASS-
TREBLE-
TREBLE+
COM
GND Ground terminal (Digital section)
Clock input terminal.
CK
Clock input receiving data from DATA terminal
Data input terminal.
DATA
Input 20bit tone control data by synchronizing to the rise of
CK signals.
Strobe input terminal.
The tone control data received from DATA and CK terminals
STB
are transferred into IC buy turning this terminal to "H" level.
Previous data are kept stored so long as "H" level in not
applied to this terminal.
V V
SS DD
1
28
27
S1
(R-ch)
26
S2
10bit
25 S3
(L-ch)
24 S4
Latch
23 S5
10bit
Circuit
22 S6
Latch
(Same S7
21
S8
20
Circuit
as L-ch
S9
19
Circuit)
S10
18
S11
17
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CIRCUIT
i
14 15 16
CK DATA STB
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2 9
8
CK DATA STB
8 9 10
LEVEL SHIFT
Q Q
3 6 7 1 3 1 5
Pin No. Symbol Description
1 Vss Negative power supply pin
13 GND Digital ground pin
28 VDD Positive power supply pin
2/27 S1
3/26 S2
4/25 S3
5/24 S4
6/23 S5
Input/Output pins
7/22 S6
8/21 S7
9/20 S8
10/19 S9
11/18 S10
co
12/17 S11
14 CK Clock input pin for data transfer.
.
15 DATA Serial data input pin for setting switches.
16 STB Strobe input pin for data writing.
9 4 2 8
15 BASS+
BASS-
14
COM
13
TREBLE-
12
11 TREBLE+
0 5 8 2 9 9 4 2 8
m
R-805TX
9 9
9 9