Kenwood VR-405 Service Manual page 6

KRF-V4530D/V5030D/V6030D/VR-405/406/414
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Pin description of microprocessor : X14,IC1(MN101C35DRA)
Pin No. Pin Name
1 S. DATA
2 S.BUS
3 SEL. ST1
4 SEL/VOL/PLL DT
5 SEL/VOL/PLL CLK
6 SEL. ST2
7 PLL. CE
8 Vdd (+5v)
9 OSC OUT
10 OSC IN
11 Vss
12 X IN
13 X OUT
14 MMCD
15 Vref-
16,17 KEY2,KEY1
18 MODEL TYPE
19 TH. SENS
20 PROTECT
21 PROTECT2
22 S.LEVEL/CH SPACE
23 PLL DO
24 Vref+
TE
L 13942296513
25
26 RESET
27 T. MUTE
28 RF ST
29 RF DT
30 RF CLK
31 VOL.ST
32 DSP INTREQ
33 DTS DET
34 REMOCON
35 DIR ERR
36 DZF
37 RDS.CLK
38 RDS.DAT/CE2
39 DSP/DIR/CORDEC CDIN
40 DSP/DIR/CDOUT
41 DSP/DIR/CORDEC CCLK
42 DSP CS
43 DSP PD
44 DIR CODEC CS
45 DIR CODEC PD
46 NO USE
47-57 1G-11G
58-74 P1-P17
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75 PACK CONT.
76 LIMMITER
77 REAR RE
78 CENTER RE
.
79 FB RE
80 FA RE
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CIRCUIT DESCRIPTION
I/O
I/O Serial data signal.
I/O Serial busy signal.
O Strobe output to input selector ( IC106).
O Data output to selector,volume and PLL IC.
O Clock output to selector,volume and PLL IC.
O Strobe 2 output to input selector ( IC109).
O PLL chip enable.
- Power supply.
O 8MHz clock output.
I 8MHz clock input.
- Connected to ground.
- Connected to ground.
- No used.
- Connected to ground.
- Connected to ground.
I Input terminal of key1 and key2.
I Discrimination port of models.
I No used.
I Detection port of protection signal 1.
I Detection port of protection signal 2.
I RDS S level and channel space changeover.
I RDS PLL data signal input.
- Reference voltage of AD converter..
CE I Chip enable.
I Reset signal input.
O Muting signal output to tuner.
O CE signal output of RF receiver IC.
O Data signal output of RF receiver IC.
O Clock signal output of RF receiver IC.
O Latch output of electric volume.
I/O Detection port of DSP INTREQ.
I Detection port of DTS data.
I Remote control signal input.
I Detection port of DIR error signal.
I Detection port of CODEC zero input.
I RDS clock input.
I RDS data input./u-COM chip enable 2.
O Serial data output.
I Serial data input.
O Clock output to IC2, IC5 and IC51on X08.
O DSP chip select.
O DSP power down.
O CODEC chip select.
O DIR CODEC power down.
- No used.
O FL grid control(1G-11G).
O FL segment control(P1-P17).
O Power pack control.
O Control port of A class power supply.
x ao
y
O Relay control terminal of surround speaker.
O Relay control terminal of center speaker.
i
O Relay control terminal of front B speaker.
O Relay control terminal of front A speaker.
8
Description
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2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9