Kenwood DPC-X301 Service Manual page 3

1. Microprocessor : MN101C16ATA2
1-1 Pin description
Pin No. Name
1-4 COM1-4
5 VLC3
6,7 VLC1,2
8 VDD
9 OSC2
10 SMCK
11 VSS
12 X1
13 X0
14,15 MMOD,VREF
16 KEY1
17 KEY2
18 RECHARGE OUT
19 BATT
20 HOLD
21 DOOR
22 DA SCST
23 DA SCHI
24 VREF+
25 P00
26 SUBQ
27 SQCK
28 MDATA
29 P04
30 MCLK
31 P06
32 RESET
33-37 P10-14
38 BLKCK
39 P21
40 REM IN
41,42 P23,24
43 YMCLK
44 YMDATA
45 YMLD
46 YD MUTE
47 ZSENSE
48 NRESET
49,50 P53,54
51 POWER
52 REM DATA
53 CONT
54 BBS
55 LMT
56 EMP
CIRCUIT DESCRIPTION
I/O
O LCD common signal
– GND
– LCD driving bias control
– Power supply(+2.8V)
– No use
I External system clock(4.2336MHz)
– GND
– GND
– No use
– GND
I Key input
I Remocon key input port
O Rechargeable detection port
– No use
I Key hold on/off control
I Door switch detection port
I/O DASC switch detection port(ST)
I DASC switch detection port(HI)
– Power supply(+2.8V)
– No use
I Sub-Q data input signal port(to MN662746RPK1)
I Sub-Q data read timing clock port(to MN662746RPK1)
O Data signal port(to MN662746RPK1)
– No use
O Clock signal port(to MN662746RPK1)
– No use
I System reset port
– No use
I Sub-Q signal read require port
– No use
I Remocon data input port
– No use
O Clock signal port to SM5903AF
O Audio signal port to SM5903AF
O Latch signal port to SM5903AF
O Audio signal mute control port
O Sensitive signal port to SM5903AF
O System reset port to SM5903AF
– No use
O Power supply control port
O Remocon data output port
O DASC control output port(HI/ST)
O BBS control
I Limit switch detection port
O Battery level detection port
DPC-X301/X507/X602
Description Remarks
ON=H
OPEN=H
ON=H
ON=H
ON=L
LOW BATT=H
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