Sony CDX-4480ESP Service Manual page 23

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• IC801 MB90574PFV-G-111 (SYSTEM CONTROL)
Pin No. Pin Name
1 LD ON
2 FOK
3 XLAT25
4 DATA25
5 XRSRO
6 GFS
7 NIL
8 VCC
9 PLL SI
10 PLL SO
11 PLL CKO
12 NOSE/FI
13 LCD SO/FO
14 LCD CKO
15 BEEP
16 DBMOD2
17 SQSI
18 NIL
19 SQCKO
20 UNI SI
21 UNI SO
22 UNI CKI/O
23 C OUT
TE
L 13942296513
24 SIRCS
25 SRDT
26 NIL
27 SCLK
28 CLOK25
29 SYSRST
30 DEEM
31 DBMOD1
32 MD ON
33 VSS
34 C
35 CD ON
36 BUS ON
37 AD ON
38 DVCC
39 DVSS
40 TEST
41 VOL CE
42 AVCC
43 AVRH
44 AVRL
45 AVSS
46 – 48 KEY IN0 – 2
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49 RC IN0
50, 51 NIL
52 MPDH
.
53 S-METER
54 VCC
55 AMP MUTE
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I/O
O Laser power ON/OFF control output (Connected to GND.)
I Focus signal detection input (Not used in this set.)
O CD signal process latch output (Not used in this set.)
O CD signal serial data output (Not used in this set.)
O Reset output to CD signal process IC. (Not used in this set.)
I GFS signal detection input (Connected to GND.)
— Connect to GND.
— Power supply pin (+5 V)
I PLL data input
O PLL data output
O PLL clock output
I Front panel detachable detection input (Connected to GND.)
O LCD serial data output
O LCD serial clock output
O BEEP output
O D-BASS mode setting output
I Sub Q data input (Connected to GND.)
— Connect to GND.
O Sub Q read clock output (Not used in this set.)
I Bus system serial interface input
O Bus system serial interface output
I/O Bus system serial clock input/output
I Track jump number count input (Connected to GND.)
I Remote commander input
I CD-TEXT data input (Connected to GND.)
— Connect to GND. (Not used in this set.)
O CD-TEXT data read clock output (Not used in this set.)
O CD signal process serial clock output (Not used in this set.)
O System reset output
O Emphasis output (Not used in this set.)
O D-BASS mode setting output
O CD mechanism deck power control output (Not used in this set.)
— GND
— Power stabilization capacitor pin
O CD power control output (Not used in this set.)
O Bus ON control output
O Power control output of A/D conversion.
— D/A converter VREF input
— GND of D/A converter.
I Test mode setting detection initial input
O Main volume serial chip enable output
— Analog power supply pin (+5 V)
— A/D converter VREF+ input
— A/D converter VREF- input
— Analog GND
I Key input 0 – 2
I Rotary commander input 0
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— Connect to GND.
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I Tuner multi-path input (Connected to GND.)
i
I S-Meter voltage detection input
— Power supply pin (+5 V)
O Power amplifier attenuate control output
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2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
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.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9