Ic Pin Function Description - Sony TAD-M30 Service Manual

3-13.

IC PIN FUNCTION DESCRIPTION

IC601 MB90673PF-G-264-BND (MODE CONTROL)/PANEL BOARD
Pin No. Pin Name I/O
1 to 10 —
11 VSS
12 FRONT/REAR
13 LED SURR
14 SED OPT
15 LED COAX
16 LED SETUP
17 LED DOLBY
18 VOL UP
19 VOL DOWN
20, 21 —
22 STANDBY/ON
23 FLCLR
24 FLDATA
25 FLCLK
26 FLLATCH
27 SIRCS
28 AVCC
29 +AVREF
30 –AVREF
31 D GND
32 AD KEY1
33 AD KEY2
34 DVSS
35 to 40 —
41 MODE0
42 MODE1
43 MODE2
44 STANDBY
45 STOP
46 U-RST
47 U-SREQ
48 U-MREQ
49 U-DATA
50 U-CLK
51 GND
52 AUB IN
53 AUB OUT
54 GND
55 to 60 —
61 GND
62 RESET
63 DVSS
64 XO
65 XI
66 DVCC
67 to 80 —
— Not used (Connected to Ground)
— Ground
I Front/rear speaker select switch input (Front at H, Rear at L)
O SURROUND ON/OFF display LED drive output
O OPTICAL display LED drive output
O COAXIAL display LED drive output
O SET UP display LED drive output
O Dolby display LED drive output
O VOLUME UP data output
O VOLUME DOWN data output
— Not used (Connected to Ground)
I STANDBY ON/OFF switch input
O FL display clear output
O FL display data output
O FL display clock output
O FL display latch output
I Remote commander SIRCS signal input
— Backup power supply +5 V
— Non-backup power supply +5 V
— Ground
— Digital Ground
I Key input, to A/D converter
I Key input, to A/D converter
— Digital Ground
— Not used (Connected to Ground)
— Not used (Connected to non-backup power supply +5 V)
— Not used (Connected to non-backup power supply +5 V)
— Not used (Connected to Ground)
— Not used (Connected to non-backup power supply +5 V)
O STOP signal output (to control microprocessor)
O Reset signal output (to control microprocessor)
O Slave request signal/data output (to control microprocessor)
O Master request signal output (to control microprocessor)
O Master data output (to control microprocessor)
O Master clock output (to control microprocessor)
— Ground
I AUB power supply input
O AUB power supply output
— Ground
— Not used (Connected to Ground)
— Ground
I Reset signal input
— Digital Ground
— External 4 MHz crystal oscillator for system clock is connected to this terminal
— External 4 MHz crystal oscillator for system clock is connected to this terminal
— Backup power supply +5 V
— Not used (Connected to Ground)
Description
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