CDX-F5710/F5710X
Y IC801 MB90487APF-G-126-BNDE1 (SYSTEM CONTROL) (MAIN BOARD (3/3))
Pin No.Pin NameI/OPin Description
1ATTOAudio mute control signal output
2 to 4NCNNot used in this set. (Open)
5BEEPOBeep signal output to power amp IC
6VOL ATTOElectrical volume ATT control output
7ILLIIllumination detect signal input for auto dimmer H: ILL off
8 to 10NCNNot used in this set. (Open)
11VSSNGround pin
12 to 14NCNNot used in this set. (Open)
15TU ATTOTuner mute control output
16 to 20NCNNot used in this set. (Open)
21RE 0IRotary encoder signal input 0
22RE 1IRotary encoder signal input 1
23VCC+3.3NPower supply pin (+3.3 V)
24EEP SIOI/OSerial data signal input/output for EEPROM communication
25EEP SCKOSerial clock signal output for EEPROM communication
26SA CLKOSerial clock signal output for spectrum analyzer to electronic volume IC
27LCD CEOChip enable signal output to LCD driver IC Flash: serial in
28LCD SOOSerial data signal output to LCD driver IC Flash: UART serial out
29LCD SCKOSerial clock signal output to LCD driver IC
30NCNNot used in this set. (Open)
31STBOStandby signal output to power amp IC
32AUXOAUX/BUS IN select signal output L: AUX
33IIC SCKOIIC bus serial clock signal output
34IIC SIOI/OIIC bus serial data signal input/output
35VCC+3.3NPower supply pin (+3.3 V) (for A/D converter)
36AVRH+3.3NExternal reference power supply (+3.3 V) (for A/D converter)
37AVSSNGround pin (for A/D converter)
38, 39KEY IN0, 1IKey signal input
40SA DATAISerial data signal input to electronic volume IC
41RC IN0IRotary commander key signal input
42VSSNGround pin
43, 44NCNNot used in this set. (Fixed at OL�.)
45VSMIS meter voltage detect signal input
46DST SELIDestination select pin
47KEY ACKIKey acknowledge detect signal input
48NCNNot used in this set. (Open)
49, 50MD0, 1IInput for operation mode designation (Fixed at OH�.)
51MD2IInput for operation mode designation (Fixed at OL�.)
52NCNNot used in this set. (Open)
53BU INIBack up power supply detect signal input
54OPEN REQIOpen REQ signal input
55NCNNot used in this set. (Open)
56DIAGICondition input from power amp IC
57NCNNot used in this set. (Open)
58UNI SIISerial data signal input
59UNI SOOSerial data signal output
60UNI SCKOSerial clock signal output
61BUS ONOBus on signal output
62SYS RSTOSystem reset signal output
63TEL ATTITEL ATT detect input
64ACC INIAccessory power supply detect signal input
65SIRCSIRemote control signal (infrared rays) input
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