Kenwood Ez700SR Service Manual page 8

Ez700SR/Ez900HDS
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
88 LX_REQ_S
89 KEY-REQ
90 LO.S SW
91 12EJE SW
92 EJECT
93 NC
94 LX_DATA_S
95 LX_DATA_M
96 LX_CLK
97 L DATAL
98 L DATAS
99 L CLK
100 PLL DATA
Truth Value Table
q
PS1-0 PS1-1 PS1-2
L L
H (L) L (H)
H H
H H
w
PS2-0 PS2-1 ILLUMI
L L
H (L) L (H)
H H
e
LOS SW
8EJE SW
12EJE SW
LIM SW
12cm Disc Eject position
8cm Disc Eject position
Loading Start position
r
PANEL 5V terminal
POWER OFF
ACC OFF
No panel or panel flippable
Momentary power down
(with panel installed)
8
Module I/O
LX I Request input from external devices
to PANEL I Communication request from LCD driver
CD I Loading start SW detection terminal
12cm DISC EJECT position detection
CD I
SW terminal 12 or 8cm disc detection
CD I EJECT defection terminal
O Other than J-destination
LX I Data input terminal from external devices
LX O Data output terminal for external devices
CLK input/output terminal with external
LX I/O
devices
to PANEL I Data input from LCD driver
to PANEL O Data output terminal to LCD driver
to PANEL O LCD driver CLK output terminal
TUNER I/O F/E data with input/output terminal
AUDIO P-CON
L OFF OFF
L ON OFF
L ON ON
H ON ON
FM+B AM+B
OFF OFF OFF
ON ON OFF
ON OFF ON
Does not work for
8cm Disc. (HI-fixed)
Disc chucking position
Description of processing during
low power consumption mod
O
I
I
I
Application
t
P-ANT Recommended timing for Power supply / MRST / MSTOP
OFF
• Rising
OFF
OFF
Bu5
ON
/MRST
/MSTOP
qRST is to be cleared after Bu5 is 4.0V or more. (4.5V or more for
DXM-6000 series)
wThe time lag between BUDET and MSTOP dropping is depended
on the system computer. (Main cycle)
eThe time from dropping of MSTOP to Bu5V going below 4.0V should
be 4mS or more.
y
TYPE3 TYPE2 TYPE1 TYPE0 Destination
0 0
0 0
0 0
0 1
0 1
0 1
1 *
L
Hi-z
Hi-z
Hi-z
Truth
Processing Operation Description
Value Table
Request input pending : L
L : KEY input
Loading start : L
12cm DISC : L
L : KEY input
J-destination : Output L-fixed
Last retained.
• Falling
4V
Bu14
q
BUDET
Bu5
/MSTOP
w
0 0 Ez900HDS With Sirius and
0 1 Ez700SR
1 * Reserved
0 0 Ez500
0 1 Reserved
1 * Reserved
* * Reserved
5V
4V
e
Remarks
with HD.
With Sirius but no
HD.
FM/AM/MP3