Kenwood DP-SE7 Service Manual page 4

DP-SE7/SE7(G)/SE9
QQ
3 7 63 1515 0
1-2 Pin description
(uPD78044FGF-071 : X25, IC4)
PIN No. PIN NAME
1~7 Grid 2G~8G
8 Vdd
9 SQCK
10 STBY
11 SUBQ
12 KR 1
13 KR 0
14~16 NC
17 RESET
18, 19 NC
20 AVss
21~24 NC
25 SDT
26 SCK
27 S GATE
28 NC
29 AVdd
30 AVref
31 DEFECT
32 XT2
33 Vss
34 X1
TE
L 13942296513
35 X2
36 RMUTE
37 CLK
38 LATCH
39 DATA
40 SENSE
41 D.S
42 S.DATA
43 S.BUSY
44 SCOR
45 NC
46 M.ON
47 REMOCON
48 Vpp
49 CLOSE SW
50 OPEN SW
51 NC
52 Vdd
53 OPEN MOTOR
54 CLOSE MOTOR
55~64 NC
65~70 Sa~Sf
71 Vlord
72~77 SEG Sg~Sl/KS 5~0
www
78, 79 NC
80 GRID 1G
.
4
CIRCUIT DESCRIPTION
I/O
O FL Digit control (Grid 2G~8G)
O Power supply (+5)
O Q-data read clock output.
O Not use (OPEN)
I Q-data (or SLT SW) input
I Key return input 1
I Key return input 0
I Not use (PULL DOWN)
I Reset input
I Not use (PULL DOWN)
– Not use (GND)
I Not use (PULL DOWN)
O Enable output to KAN03
O Clock output to KAN03
O Data output for KAN03
I Not use
– Not use (+5V)
– Not use (GND)
I Scratch disk compel sat
– Not use (OPEN)
– GND
I System clock
– System clock
O Analog mute
O CXD2507AQ clock output
O CXD2507AQ latch output
O CXD2507AQ data output
I SENSE/GFS/F.OK input
O Not use
I/O Serial DATA I/O
I/O Serial BUSY I/O
I Sub-code synch detect
I Not use (PULL DOWN)
O Focus lock compensation
I REMOCON
– GND
I Tray close (L : close)
I Tray open (L : open)
I Not use (PULL DOWN)
– Power supply (+5V)
O Motor [OPEN] (H : OPEN/T.U.DOWN)
O Motor [CLOSE] (H : CLOSE/T.U.UP)
O Not use (OPEN)
O FL Segment (SEG Sa~Sf)
– FL driver power supply (-30V)
O FL Segment Sg~Sl and key scan (KS5~KS0)
O Not use (open)
x ao O FL digit (Grid 1G) u163
y
i
2 9
8
DESCRIPTION
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9