
9
RXD-803/803E/853/853E/A83
CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description ACTIVE
HL
41 EX CLK15 O Clock output to expander IC(X13,IC15).
42 PS LOAD O Control port of shift/load for expander IC(X13,IC15). SHIFT LOAD
43 PS IN O Data input from expander IC(X13,IC15).
44 EX CLK16 O Clock output to expander IC(X13,IC16).
45 EX DATA O Data output to expander IC(X13,IC16).
46 ATT O -10dB attenunation output. OFF ON
47 FL RST O Reset signal output to VFD dot driver. RESET
48 LED PRO O LED output for prologic. OFF ON
49 LED 3ST O LED output for 3 stereo. OFF ON
50 LED VIR O LED output for virtual. OFF ON
51 M CONT B I Multi control jog input .
52 M CONT A I Multi control jog input .
53 VOL B I Volume encoder input .
54 VOL A I Volume encoder input .
55 LED STBY O Control port of standby LED. OFF ON
56 LED TIMER O Control port of timer LED. OFF ON
57 NC - Unused.
58 OPEN SW I CD open detection switch input.
59 CLOSE SW I CD close detection switch input.
60 TD SW I Traverse down switch input port of CD mechanism.
61 TU SW I Traverse up switch input port of CD mechanism.
62 VCC(BU) - u-com power supply(+5.0V).
63 OPEN O CD motor control output.
64 VSS - GND.
65 CLOSE O CD motor control output.
66 BRKM O CD motor control output.
67 RTL O Rotary motor opposite direction(CCW) output.
68 RTR O Rotary motor positive direction(CW) output.
69 DC OFF O Power control of CD DSP IC. ON OFF
70 CD PROT I CD protection input(Only at selector CD). NORMAL PRO. ON
71 SLT SW I CD start limit switch input.
72 MLD O CD DSP command load signal output.
73 SQCK O CD sub code clock output.
74 SUBQ I CD sub code input.
75 D MUTE O CD DSP muting output.
76 XRST O CD DSP IC reset control. RESET
77 PHTR I CD mecha. Stop switch input.
78 PS SW I Tray position & disc detector switch input port of
CD mechanism.
79 TU ON/OFF O Tuner power on/off output.
80 REC/PLAY O Deck recording/playback control. RECORDING PLAYBACK
81 BIAS O Deck bias control. OFF ON
82 POWER O Power relay control.
83 RELAY O Control port of speaker relay.
84 EV CLK O Clock output to E..volume.
85 EV DATA O Data output to E..volume data output.
86 EMPHASIS O Tuner emphasis output.
87 EPROM DATA I/O Expander ROM data input/output.
88 EPROM CLK O Expander ROM clock output.
89 PROTECT I Detection port of protection.
90 SPEANA I Input port of music signal.
91 TYPE I Discrimination of tuner destination.
92 BPH I B deck reel sensor input.
93 APH I A deck reel sensor input.
94,95 KEY3,KEY2 I A/D key input(key3,key2).
96 AVSS - GND.
97 KEY1 I A/D key input(key1).
98 VREF - A/D reference voltage input.
99 AVCC(BU) - u-com power supply(+5.0V).
100 PLL DATA O PLL IC & E..volume data output.