Ic Description - Aiwa XR-H560MD Service Manual

IC DESCRIPTION

IC, LC876580W
Pin No. Pin Name
1 I-DISH
2 I-MD1
3 I-MD2
_______________
4 I-STEREO/I-DRF
5 O-DATA
6 O-CLK
7 I-TRAY
O-CDDATA/
8
I-RDSDATA
9 O-MUTE
10 O-POWER
_________ ______
11 RESET
______________
12 I-TU.IFC/I-SUBQ
13 I-TU-SIG/I-MS
14 VSS1
15 CF1
16 CF2
17 VDD1
___________
18 I-HOLD
19-22 I-KEY1-4
23 I-CDSW
24 I-RE-VOL
25 I-RE-MULTI
26 I-SPEANA
27 I-RDSCLK/I-WRQ
28 I-TMBASE
29 I-RMC
30-42 13G-1G
43-45 P37-P35
46 VDD3
47 P34
48-50 SPEANA/P31-P33
51 VP
52, 53 P30, P29
_________
54 DSP/P28
___________
55 DEMO/P27
56 AMST/P26
57 LW/P25
58 SW/P24
I/O
I CD DISH No. detection input.
I MD door SW input.
— Not used.
I Connected to tuner/stereo detection and CD ASP LA9240M pin-54 DRF.
Connected to the front shift resistor BU2099 3 DATA, main shift resistor 4094 2
O
DATA, and tuner PLL IC LC72131 4 DI.
Connected to the front shift resistor BU2099 4 DATA, main shift resistor 4094 3
O
CLK, and tuner PLL IC LC72131 5 DI.
I Deck door SW input.
Connected to CD DSP LC78622E 56-pin COIN and ASP LA9240M 52-pin DAT.
O
RDS data input.
O Main mute output.
O Unit power supply control output.
— Microprocessor reset.
I Connected to tuner PLL IC LC72131 5.
I RDS signal level AD value input (A/D) and tape music sensor input (A/D).
— Ground.
I
Connected to 5.76 MHz oscillator.
O
— Microprocessor power supply. (µ-com 5 V)
I Hold status detection.
I Key input.
I CD frame open/close status detection input.
I AD value input to electronic volume control from the rotary encoder outputs A and B.
I AD value input to multi jog from the rotary encoder outputs A and B.
I Input from spectrum analyzer.
I Connected to RDS CLK input and CD DSP LC78622E pin-53 WRQ.
I Connected to reference clock input for watch PLL IC LC72131 7.
I Remote control input.
O FL tube grid output.
O FL tube anode output.
— Microprocessor power supply. (µ-com 5 V)
O
FL tube anode output.
O
— Connected to minus power supply -VFL for FL.
O FL tube anode output.
I
I
O FL tube anode output and INT.diode matrix input.
O
O
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Description