RXD-790/V860/V890
9
CIRCUIT DESCRIPTION
Pin No. I/O Name Description
1 I BP-IN Speana input (A/D convertor input)
2 I CW Rotary encoder input B
3 I CCW Rotary encoder input A
4 I A-PH A photo sensor input
5 I B-PH B photo sensor input
6 I HEAD PHONE Head phone sw input H : ON L : OFF
7 O DOLBY ST Surround IC(LV1016/LA2786) strobe
8 I/O SEL ST Selector IC(NJU7313) strobe
9 O IC-DATA Selector/PLL/E. Volume/Expander IC (data)
10 O IC-CLK Selector/PLL/E. Volume/Expander IC (Clock)
11 O E ST Expander IC (NJU3711/NJU3713/NJU3714) strobe
12 O SANYO CE System IC(LC75393(/PLL(LC72131)/E. vol(LC7536) CE
13 I PLL DO PLL data input
14 O DAC ST DAC(PCM1717E) strobe
15 O C BUSY VCD busy output
16 O VCD CLOCK VCD clock
17 O C DATA VCD data output
18 I M DATA VCD data input
19 O CD-CLK CD DSP clock (CXD2509Q)
20 O SQCK Sub cord clock(CXA 1782BQ, CXD2509Q)
21 O CD-DATA CD IC DATA
22 I SUBQ Sub code data
23 O CD-XLAT CD latch output (CXA1782BQ, CXD2509Q)
24 I SENSE CD sense input (CXA1782BQ, CXD2509Q)
25 O PS-LOAD Parallel serial IC load H : Shift L : Load
26 I PS-SIN Parallel serial IC data
27 O E. VOL ATT E. Vol attenuation H : ON L : OFF
28 O IC-CLR Expander IC reset H : Normal L : Reset
29 I CE Power failure input H : AC ON L : AC OFF
30 I SCOR Sub code synchronism signal (CXD2509Q)
31 O A MUTE Mute control H : OFF L : ON
32 I REM Remote control input
33 I PROTECT Protection input H : Protect L : Normal
34 I M BUSY VCD board u-COM busy input
35 I RESET Reset H : Normal L : Reset
36 I Xcin
Timer clock input/output(32.768kHz)
37 O Xcout
38 I Xin
Main clock input/output(8.38MHz)
39 O Xout
40 Vss (GND)
41~44 I KR0~KR3 Key return 0~3 H : ON
45~54 O 1G~10G FL grid 1G~10G
55~73 O SEG41~SEG23 FL segment SEG41~SEG23
74~76 O SEG22/BP OUT3~SEG20/BP OUT1 FL segment SEG22~SEG20/band pass control 3~1
77~81 O SEG19~SEG15 FL segment SEG19~SEG15
82 ~90 O SEG14 / KEY15/~SEG6/KEY7 FL segment SEG14~SEG6/Key scan KEY15~KEY7
91 Vcc u-com power supply
92 ~ 97 O SEG5/KEY6/~SEG0/KEY1 FL segment SEG5~SEG0/Key scan KEY6~KEY1
98 Vee Pull down power supply
99 AVss A/D GND
100 Vref A/D reference voltage
6-2 Pin description
RXD-790/V860(k) COVER( 97.11.28 3:55 AM y[W 18
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