Pioneer VSX-C550-S Service Manual page 66

1
QQ
Pin Function
3 7 63 1515 0
No. Pin Name
A
1 G2
2 G1
3 NC
4 ACIN
5 RDS DT
6 RDS CK
7 DLCK
8 RMC
9 CDC DI
10 T MUTE
11 PLL CE
B
12 TUNED
13 PLL DO
14 STEREO
15 VENC A
16 VENC B
17 OVER DCT
18 FS96
19 CREQ
20 CSCS
21 CSCK
22 CSDI
C
23 CSDO
24 F OUT
25 HP DCT
26 AMP OL
TE
L 13942296513
27 SW DCT
28 AVref
29 CDCT
30 SRDCT
31 THRM
32 AMP DC
33 FAN DCT
D
34 KEYIN1
35 KEYIN2
36 VER 1
37 AVSS
38 RST
39 EXTAL
40 XTAL
41 VSS
42 TX
43 TEX
E
44 VDD
45 VFDP
46 SPCONT
47 RY AC
48 RY FR
49 RY C/R
50 RY HP
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2
I/O
Grid output 2
O
Grid output 1
−
Connect to Vdd
I AC pulse input
I Serial control data signal for RDS communication
I Serial control clock signal for RDS communication (Use for external interrupt)
I ERR/OVER signal input from CODEC
I Remote control signal input (non carrier signal)
I DIR data input
O Tuner mute
O Chip select signal for communicate with LC7213 (tuner)
I TUNED information
I Data input signal for communicate with LC7213 (tuner)
I Discrimination signal of Stereo/Mono signal
I EVOL rotary encoder signal input A
I EVOL rotary encoder signal input B
I Overflow detection
I 96k
I REQ for crystal DSP
O CS for crystal DSP
O CLK for crystal DSP and CODEC
I DATAIN for crystal DSP
O DATAOUT for crystal DSP and CODEC
O Output for furniture
I HP detection
I Overload detection of the protection circuit (L: Abnormal detection)
I Subwoofer detection signal input
−
Connect to Vdd
I Center speaker detection signal input
I Surroundr speaker detection signal input
I Thermistor detection signal input
I DC abnormal detection of the protection circuit (L: Abnormal detection)
I FAN abnormal detection signal input
I A/D conversion port 1 of key input
I A/D conversion port 2 of key input
I Destination switch 1 (A/D take-in)
−
Connect to Vss
−
Reset
−
Connect an oscillator 7.2MHz
−
−
Connect to Vss
−
(Connect an oscillator 32kHz)
−
−
+5V
−
-30V
O Output for speaker detection
O AC relay ON/OFF
O Front speaker relay ON/OFF
O Rear/center relay ON/OFF
O Headphone relay ON/OFF
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VSX-C100-S
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3
8
Function
Q Q
3 6 7 1 3
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3
4
2 9 9 4 2 8
Active
1 5 0 5 8 2 9 9 4
m
co
4
9 9
H
H
H
L
L
L
H
H
H
H
2 8 9 9
L
L
H
H
H
H
H