Kenwood VR-505 Service Manual page 6

VR-505/506/507/509/510/517
Pi n No. Pin Name
46 TUNER DIN
47 TUNER CLK
48 TUNER CE
49 TUNER DOUT
50 TUNER MUTE
51 TUNER STEREO
52 TUNER SD
53 RFRCV CE
54 RFRCV DIN
55 RFRCV CLK
56 S BUSY
57 S DATA
58 LIMITER
59 IR SW
60 DIR AUTO
61~63 MODEL T0~T3
64 CH SPACE
65~68 TUNER DO~D3
69 MULTI CW
70 MULTI CCW
71 SEL CW
72 SEL CCW
73 VOL. CW
74 VOL.CCW
75 SP. A RLY
76 CNT/SUB W RELAY
77 SP. B RLY
78 SUB W
79 SURR.RLY
80 PWR RLY
81 PACK CONT.
82 STANDBY RLY
83 SURR.MUTE
84 20dB ATT.
85 A. MUTE
86 COMP 1
87 SEL DIN
88~91 V. CTL A~D
92 SEL. DIN
93 SEL. CLK
94 SEL. ST1
95 DAVSS
96 SEL. ST 2
97 VOL. CE
98 VOL. CLK
99 V. MUTE
100 DAVDD
6
CIRCUIT DESCRIPTION
I/O
O Data output to PLL IC.
O Clock output to PLL IC.
O Chip enable output to PLL IC.
I Data input from PLL IC.
O Mute signal output to PLL IC.
I Stereo signal input from PLL IC.
I SD signal input from PLL IC.
O Chip select output to RF remote control receiving IC.
O Data output to RF remote control receiving IC.
O Clock output to RF remote control receiving IC.
I/O Serial busy signal input/output.
I/O Serial data signal input/output.
O Power control for A class.
O Switching port of remote control signal.
I Non PCM detect port.
I Discrimination port for model type.
I Discrimination port for channel space.
I Discrimination port(D0~D3) for tuner destination.
I Encoder (Multi control) upward detection.
I Encoder (Multi control) downward detection.
I Encoder (Selector))clockwise detection.
I Encoder (Selector)) counterclockwise detection.
I Encoder (Vol.)clockwise detection.
I Encoder (Vol.) counterclockwise detection.
O Relay control for A speaker.
O Relay control for center and sub speakers.
O Relay control for B speaker.
- Unused.
O Relay control for surround speaker.
O Control port of power relay.
O Power pack control.
O Standby relay control.
I Mute control for surround.
O 20dB attenuater control.
O Audio mute control.
O Video component switch control.
O Data output to selector IC(X08,IC12/14).
O Video switch control.
O Data output to selector IC(X07,IC8/11).
O Clock output to selector IC(X07,IC8/11).
O Strobe 1 output to selector IC(X07,IC8).
- Connected to ground.
O Strobe 2 output to selector IC(X07,IC11).
O Chip enable output to vol. IC (X08,IC15).
O Clock output to vol. IC (X08,IC15).
O Mute control to video selector IC (X14,IC401/402).
- +5V power supply.
Description