SECTION 4
DIAGRAMS
4-1. IC PIN DESCRIPTION
Y IC801 mPD17705GC-526-3B9 (SYSTEM CONTROL)
Pin No.Pin NameI/OPin Description
1SIRCSISIRCS input (A/D)
2IN-SWICD mechanism position detection
3D-SWICD mechanism position detection
4SELF-SWICD mechanism position detection
5L-SWILIMIT switch
6LM-EJOLoading motor control (Eject direction)
7LM-LODOLoading motor control (Loading direction)
8ANT-ONOPower control for amplifier.
9MONOOForce MONO output
10SDISD signal input
11BAND-SWIBand plan setting of general area.
12AREA1-SWIDestination select 1
13AREA2-SWIDestination select 2
14, 15RE1, 2IRotary encoder input 1, 2
16SEEK/SEEKOSEEK output
17 � 20NCNNot used.
21GND3NGND
22 � 24KEYIN3 � 1IA/D key input 3 � 1
25ROT-INIRotary commander input
26S-METERIFM and AM common signal meter A/D conversion input
27TEST-SWITEST mode select input
28AM-IFCIAM center frequency input
29FM-IFCIFM center frequency input
30VDD2NPower supply (+5 V)
31VCOH-FMILocal oscillation frequency input (FM)
32VCOL-AMILocal oscillation frequency input (AM)
33GND2NGND
34NCNNot used.
35EO1-PDOUTOError out output
36TESTONFixed at OL�.
37AM-ON(TU-ON)OAM power output (AM select)
38FM-ON(FM/AM)OFM power output (FM select)
39LCL/DXOLOCAL/DX select (OH� : LOCAL, OL� : DX)
40BEEPOBEEP output
41ACC-INIAccessory input
42SCORISUBQ data read request
43MUTEOSystem mute output
44AMP-MUTEOPower amplifier mute output
45TEL-MUTEOTelephone mute output
46PH2NFixed at OH� in this set.
47VOL-CEOElectric volume chip select
48VOL-CLKOElectric volume serial clock
49VOL-DATAOElectric volume serial data
50EMPHOODe-emphasis control output
51PW-ONOSystem power control
52MD-ONOLoading motor power
53CD-ONOServo drive power
54ILL-ONOIllumination output
55, 56MOD1, 2OBus boost control 1, 2
57PH3NFixed at OH� in this set.
58LCD-CEOLCD drive chip select output
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