JVC XL-R5020BK, Руководство по обслуживанию

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XL-R5020BK
37
UPD784215AGF513 2/2
Pin No. Symbol I/O Description
44 REM I Remote control signal input
45 NC - Non connect
46 ACON I The AC power supply existence detection terminal
L : No AC power supply (backup mode)
H : AC power supply having (normal mode : Backup mode Release)
47 CDR_RREQ I Request demand input from CD-RW unit
48 MP3REQ I Request demand input from MP3 decoder
49 DOCD O Output select control H : selected 3CD L : selected CD-RW
50 SLCDR O Output select control H : selected CD-RW L : selected 3CD
51 AVDD - Power supply te5V
(connects with the backup capacitor at power supply off.)
52 AVREF0 - 3CD Analog signal level reference voltage
53~56 KEY1~4 I Operation switch input terminal 1~4
57 NC - Non use
58 3CDINR I 3CD analog signal level input (for Rch level meter)
59 3CDINL I 3CD analog signal level input (for Lch level meter)
60 MODE I DCS mode setting switch input
61 AVSS - Connect to ground
62 DCSI I DCS command input
63 DCSO O DCS command output
64 AVREF1 - Power supply terminal +5V
65 NC - Non connect
66 NC - Non connect
67 NC - Non connect
68 STAT I 3CD status input
69 COMD O 3CD command output
70 ASCK1 I Connect to ground
71 SRST O System reset signal output L : active
72 POWER O System power supply control terminal / standby LED control
H : power OFF / LED turning off L : power ON / LED lighting
73 CDR_DTI I Serial data input from CD-RW unit
74 CDR_DTO O Serial data output to CD-RW unit
75 CDR_ACLK I Clock signal input from CD-RW unit
76 CDR_SREQ O Request signal output to CD-RW unit L : active
77 SYS_RDY O System ready output to CD-RW unit L : active
78 NC - Non connect
79 DACPD O DAC power down control output
80 SLCD O Output select control H : 3CD L : CD-RW
81 3CD_RES O Reset signal output to 3CD unit micom (IC251)
82 NC - Non connect
83 DOCDR O Digital output select control H : selected CD-RW L : selected 3CD
84~88 NC - Non connect
89 MP3BYPAS O Bypas signal outpct to IC406 L : MP3 decoder is bypassed
90 MP3LED O MP3LED control signal output L : Lighting
91,92 NC - Non connect
93 MP3RST O Reset signal output to MP3 decoder(IC401) L : Reset
94 DIFENA O MP3 Board(LEB10055) enable/disable control signal output H : operable
95 MP3SDA I/O MP3 Decoder I/F data input/output teminal
96 MP3SCL O MP3 Decoder I/F clock output terminal
97 NC - Non connect
98 CDRRST O Reset signal output to CD-RW unit L : reset ON
99 STBY_LED O Standby LED control signal output L : lighting
100 VSS - Connect to ground