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KX-B620 Series
KX-B520 Series
CPU pin function
are as follows:
Pin
|Terminal|
¢,
it
ere
input
pe
Bae
nalts
Signal
Function
output
Description
See
<a
2
eb
:
When the reset signal is input to the
1
RESET
RESET.
Reset signa] Input
i"
| CPU, the CPU resets all signals.
et
aoe
e r
-
eee
;
é
When
this signal
is input,
the CPU
2
INT
INT
ccD synchronizing interrupt signal
in
| starts one line Séquence.
.
3
AVss
GROUND
| CPU analog ground
GROUND
4 |
VReF
+5V
Analog standard power supply
Supply voltage is +5 volts.
|
j
ii
:
When the. advance key is pressed, - this},
5
KO
FEED
Screen feed, signal
in
signal becomes "H".
,
rie,
stead
:
When the copy key is pressed, this signal
8
Kt
COPY
Copy signal
Lae
ent g
eign
ae
7
K2
THERM
|
'Temperature of the thermal head
in,
ss
of the thermal head
is
a
K3
VPEAK
CCD peak voltage
in
CCD peak voltage is input.
9
AVpp
+5V
Analog power supply
Supply voltage is +5 volts.
10
so
SMB
Screen feed motor B phase signal
out | This signal. excites B phase coil.
11
$1
SMA
Screen feed motor A phase signal
out
. | This signal excites A phase coil.
12
$2
SMB
Screen. feed motor B phase signa!
out
| This signal excites B phase coil.
13
$3
SMA
Screen feed motor A phase signal
out
| This signal excites A phase coil.
14 | $4
PMB
Paper feed motor B phase signal
out | This signal excites B phase coil.
15
$5
Paper feed motor A phase signal
- | This signal excites A phase coil. .
$6
PMB
Paper feed motor B phase signal
~
out
| This signal excites B phase coil.
Paper feed motor A phase signal
This signal excites A phase coil.
7
pas
When this signal becomes "L", CCD
DO
19
20
CNVss
| GROUND
"GROUND
CCD data enable signal
Blank area start signal
GROUND
CPU digital ground
out | data is enable.
When
this signal becomes
"H", 1C109
stores
all
white
waveform
to
the
memory.
GROUND
"Jerounp
This signal preheats the lamp.
22
D2
. LAMPPRE
|Lamp.preheat signal
23
D3_|
CAMPTON | Lamp turn on signal
24
D4
This signal turns on the lamp.
-ENDLED
| Paper end LED drive signal
SP101
Selectable paper size
Not used
When this signal becomes "L", paper end
LED lights.
When.
'the
screen
-comes
to. home
position, this signal becomes "L".
When
CCD. gain
is insufficient,
this
signal becomes "H".
When the thermal paper is exhausted,
this signal becomes "H".
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