Panasonic KX-W1000 Service Manual page 31

4.3.2 CPU
This typewriter is a microprocessor controlled. It is controlled by a HD63B03x CPU "Central Processing Unit" IC1.
The CPU has full control over all machine functions. It controls the printer mechanism, keyboard scanning, the
display and memory management. The pin names and functions are shown in the following chart.
И вы 15
w
Address Bus
FUNCTION
ВВ
я
RESONATOR Input (7 MHz)
CPU Mode Select (+5 V)
CPU Mode Select (0 V)
z О
TBY |Not used (--5 V)
Not used (+5 V)
ПАЈЕ А ЈАВА А АВАРА ИЕ И И
Сатег Зраста Могог
Phase Signal
NC
Carrier Spacing Enable
BUZZER
RAM Enable Signal
FDD Disk Change Signal
FDD Interrupt Request
Not used (+5 V)
Not used (+5 V)
Not used (+5 V)
Carrier Home / Paper Feed Sensor
Not used (+5 V)
Ribbon Feed Sensor
SEE SERIE EaR
N
Б >
D
FRIRE RR EERE REE
7
Daisywheel Motor
Phase Signal
Address Bus
Print Hammer Solenoid ON Signal
Paper Feed Motor/Ribbon
Feed Motor Control Signal
РО ДА ИВА ДА А БЕРЕЛЕ
А |
a
a
A5
As
АВ |
A9
Ao
an |
A
А14
A5
зо "U
bl lil li
"D
o
ч
аа аа аа ер ев я а є