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
