Onkyo DX-C390 Service Manual page 35

IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
Q102 : CXA2851N RF SIGNAL PROCESSOR
PIN ASSIGNMENT
30
1
Terminal Description
PIN No. PIN SIGN
1 LD
2 PD
3 EQ_IN
4 AC_SUM
5 GND
6 A
7 B
8 C
9 D
10 E
11 F
12 SW
13 DVcc
14 DVC
15 RFAC
16 DC_OFST
17 RFDCI
18 RFDCO
19 VC
20 RFC
21 VFC
22 BST
23 RFG
24 Vcc
25 CEI
26 CE
27 TE_BAL
28 TE
29 FEI
30 FE
29 28 27 26 25 24 23 22 21
2 3 4 5 6 7 8 9 10
I/O DESCRIPTION
Output pin for APC amp.
O
Input pin for APC amp.
I
Input pin for EQ block and VCA block of RFAC system.
I
Output pin for RF SUM of RF AC system.
O
GND pin
I
A-signal input pin.
I
B-signal input pin.
I
C-signal input pin.
I
D-signal input pin.
I
E-signal input pin.
I
F-signal input pin.
I
Mode select input pin.
I
DVcc input pin.
I
DVcc output pin.
O
RFAC signal output pin.
O
Focus error signal output pin.
O
Virtual grounding pin of FE Amp.
I
Tracking error signal output pin.
O
TE balance adjusting pin.
I
Center error signal output pin.
O
Virtual grounding pin of CE Amp.
I
Vcc pin.
I
AF signal gain adjusting pin of VCA block.
I
Adjust the boost quantity of EQ.
I
Adjust the cutoff frequency signal of EQ.
I
Adjust the cutoff frequency signal of EQ.
I
VC voltage output pin.
O
RFDC signal output pin.
O
Virtual grounding pin of RFDC Amp.
I
Offset adjusting output pin for RFDC.
I
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DX-C390