CDX-R5515X/R5610/R6550
Y IC PIN DESCRIPTIONS
Y IC3 MB90487APFV-G-131-BNDE1 (CD SYSTEM CONTROL) (SERVO BOARD (2/2))
Pin No.Pin NameI/OPin Description
1NCOServo 1.5 V power supply control signal output
2 to 6NCNNot used. (Open)
7CD BUS0I/OBus data signal input/output 0
8CD BUS1I/OBus data signal input/output 1
9VSSNGround pin
10CD BUS2I/OBus data signal input/output 2
11CD BUS3I/OBus data signal input/output 3
12CD BUCKOBus clock signal output
13CD XCCEOChip enable signal output
14CD XRSTOReset signal output
15CD ZDETIZero detection signal input
16 to 20NCNNot used. (Open)
21VCCNPower supply pin (+3.3 V)
22DAC ZDETLIZero data detection signal input (L-ch)
23DAC ZDETRIZero data detection signal input (R-ch)
24NCNNot used. (Open)
25RXDIUART RXD data signal input (MCBUS/Flash data input)
26TXDOUART TXD data signal output (MCBUS/Flash data output)
27DEC SSTBYOSRAM STANDBY mode control signal output
28, 29NCNNot used. (Open)
30DEC INTIRequest signal input
31, 32NCNNot used. (Open)
33AVCCNPower supply pin (+3.3 V) for A/D converter
34AVRHNExternal reference voltage for A/D converter
35AVSSNGround pin
36NCNNot used. (Open)
37DEC XMUTEOMute signal output L: mute
38, 39NCNNot used. (Open)
40VSSNGround pin
41NCNNot used. (Open)
42MEC LIMITISled limit in detection switch signal input
43MEC LOADOLoading motor signal output (Load direction)
44MEC EJECTOLoading motor signal output (Eject direction)
45MEC INSWIPack-in detection signal input
46MEC DSWIChucking end detection switch signal input
47, 48MD0, MD1ICPU operation mode designation signal input (Connect to Vcc.)
49MD2ICPU operation mode designation signal input (Connect to Vss.)
50BUS ONIBus on signal input L: bus on
51BU INIBackup on/off signal input H: backup on, L: backup off
52CD SBSYISUBQ sync signal input L: interruption
53MEC SELFSWIDisc insert detection switch signal input L: disc in interruption
54, 55NCNNot used. (Open)
56UNISIISerial data signal input
57UNISOOSerial data signal output
58UNICKIISerial clock signal input
59LINEOFFOLine off signal output
60A ATTOAudio attenuation signal output H: ATT on
61EJECT OKIFront panel open signal input H: eject
62OPEN REQOFront panel open/close request signal output H: open request
63MECONOMechanism deck power supply control signal output
64CDONOServo power supply control signal output
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