Sony CDX-C90 Service Manual page 52

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• IC300 MB90F574PFV-G-139-BND (SYSTEM CONTROL)
Pin No. Pin Name
1 TIR WR
2 TIR RD
3 TIR CE
4 TIR CE
5 TIR BUSY
6 TIR PDOWN
7 DIVER
8 VCC
9 AF SEEK
10 WIDE
11 CAUTION
12 NOSE SW
13 COLOR
14 BUSON
15 BEEP
16 TIR RES
17 DF LAT
18 DF SO
19 DF CKO
20 UNISI
21 UNISO
22 UNICK
23 NCO
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24 SIRCS
25 PLLSI
26 PLLSO
27 PLLCKO
28 PLL CE
29 P MOT+
30 P MOT–
31 I DET
32 POS0
33 GND
34 C
35 POS1
36 POS2
37 POS3
38 DVCC
39 DVSS
40 MOTREF
41 LCDANG
42 AVCC
43 AVRH
44 AVRL
45 AVSS
46 DSTSEL0
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47 H TEMP
48 L TEMP
49 MPT
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50 VSM
51 RC IN0
52, 53 KEYIN0, 1
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I/O
O TIR IC data write output (Not used in this set.)
O TIR IC data read output (Not used in this set.)
O TIR IC data chip enable output (Not used in this set.)
O XTIR IC data chip enable output (Not used in this set.)
I TIR IC busy input (Not used in this set.)
O TIR IC power down output (Not used in this set.)
O FM diversity ON/OFF output (Not used in this set.)
— Power supply pin (+5 V)
O AF SEEK output (Not used in this set.)
O WIDE/NARROW select output
I Caution alarm setting (Fixed at "H" in this set.)
I Nose detection input
O Color control output ("H":green, "L":amber)
O Bus ON control output
O BEEP output
O TIR IC reset (Power down) output (Not used in this set.)
O Digital filter latch output
O Digital filter serial data output
O Digital filter clock output
I Serial data input (for UNI LINK)
O Serial data output (for UNI LINK)
O Serial clock output (for UNI LINK)
— Not used.
I Remote commander input
I PLL data input
O PLL data output
O PLL clock output
O PLL chip enable output
O Front panel motor control (+) output
O Front panel motor control (–) output
I Panel motor lock detection input
I Position detection input 0 (Open end)
— GND
— Power stabilization capacitor pin
I Position detection input 1 (Close end)
I Position detection input 2 (10 DEG.)
I Position detection input 3 (20 DEG.)
— D/A converter VREF input
— GND of D/A converter.
O Motor reference voltage output
O LCD view angle adjustment analog output
— Analog power supply pin (+5 V)
— A/D converter VREF+ input
— A/D converter VREF– input
— Analog GND
I Destination select input 0 (Fixed at "H" in this set.)
I High templature detection analog input (Fixed at "H" in this set.)
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I Low templature detection analog input (Fixed at "H" in this set.)
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I Tuner multi-pass input (Not used in this set.)
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I S-Meter voltage detection input
I Rotary commander input 0
I Key input 0, 1
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Pin Description
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9 4 2 8
0 5 8 2 9 9 4 2 8
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9 9
9 9