Ic Pin Function Description - Aiwa JAX-E3 Service Manual

6-22. IC PIN FUNCTION DESCRIPTION

• PANEL BOARD IC901 LC876796B-52D8 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 SYS-MUTE
2 RDS DO
3 TU/EVOL DO
4 CD RESET
5 CD CE
6 MP3 CE
7 CLK-SHIFT
8 LCK
9 TU CE
10 MP3 SYNC
11 RESET
12 XT1
13 XT2
14 VSS1
15 CF1
16 CF2
17 VDD1
18
POWER DOWN
19 TU-SIG/MIC
20 CD BUSY
21 SPEANA-L
22 SPEANA-M
23 SPEANA-H
24 KEY3
25 KEY2
26 KEY1
27 HOLD
28 RDS CLK
29 RMC
30 to 40 G1 to G11
41 to 45 S1 to S5
46 VDD3
47 A PHOTO/S6
48 B PHOTO/S7
49 REC REV/S8
50 B MODE/S9
51 FIX0
52 B HALF/S10
53 REC FWD/S11
I/O
O Line muting on/off control signal output terminal
I RDS serial data input from the FM/AM tuner unit
O Serial data output to the FM/AM tuner unit, motor/plunger driver and electrical volume
O Reset signal output to the CD DSP
O Chip enable signal output to the CD DSP
O Chip enable signal output to the MP3 decoder
O Shift clock signal output terminal Not used
O Latch clock signal output to the motor/plunger driver
O Chip enable signal output to the FM/AM tuner unit
I SYNC signal input from the MP3 decoder
System reset signal input from the reset signal generator "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I System clock input terminal (32.768 kHz)
O System clock output terminal (32.768 kHz)
— Ground terminal
I System clock input terminal (8.64 MHz)
O System clock output terminal (8.64 MHz)
— Power supply terminal (+3.3V)
I Power down detection signal input terminal
I RDS signal input terminal
I Optical pick-up up/down detection and tray open/close detection signal input terminal
I Spectrum analyzer drive signal input terminal (low band)
I Spectrum analyzer drive signal input terminal (middle band)
I Spectrum analyzer drive signal input terminal (high band)
I Front panel key input terminal (A/D input)
I Front panel key input terminal (A/D input)
I Front panel key input terminal (A/D input)
I System malfunction signal (hold signal) input from the power amplifier circuit
I RDS serial data transfer clock signal input from the tuner unit
I Remote control signal input terminal
O Grid drive signal output to the fluorescent indicator tube
O Segment drive signal output to the fluorescent indicator tube
— Power supply terminal (+3.3V)
Deck-A tape reel rotating detection signal input and segment drive signal output to the fluorescent
I/O
indicator tube
Deck-B tape reel rotating detection signal input and segment drive signal output to the fluorescent
I/O
indicator tube
Recording (reverse direction) detection signal input and segment drive signal output to the
I/O
fluorescent indicator tube
Deck-B mode detection signal input and segment drive signal output to the fluorescent indicator
I/O
tube
I/O Not used
Deck-B cassette detection signal input and segment drive signal output to the fluorescent
I/O
indicator tube
Recording (forward direction) detection signal input and segment drive signal output to the
I/O
fluorescent indicator tube
Description
CX-JE3
41