Major Parts - Epson PX-8 Technical Manual

REV.-A
1.3 Major parts
The main unit consists of five parts and a case as shown in Fig. 1-2.
CD
MAPLE board
A control board realizing compact size and low power consumption with CMOS, flat package
type multifunction gate arrays and various chips on it.
CD
Micro cassette
Consists of control board and driving mechanism. Reads and writes data from and to the tape.
Q) Keyboard
Has 72 keys on it (73 keys for Japanese use), 9 of which are function keys. Also has three in-
dicators which show the input mode.
CD
LCD
Consists of
480
(width) x
64
(height) dots, can display a total of
480
characters.
®
Main battery
A rechargeable Ni-cd battery with a capacity of 1100 mAH. It supplies power necessary for
the normal circuit operation.
Bottom side
Fig. 1-2
1.3.1 MAPLEboard
Power consumption is considerably reduced by employing power-saving C-MOS. On-board inte-
gration has become easy by employing customized LSls and chips. Although both sides of the
boards are utilized, the back side mainly includes chips such as resistors and capacitors.
~-ROM
capsule
Internal speaker
Front view Rear view
Fig. 1-3
1-5