Service manual

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PC;-l600
1. Specifications . .
.....•.. . ..•••••. . ..... . 105
2. Parts identification . . . . . . . . . • • • • • . . . . . . . .. 105
3, Use .•..• ,., ............ . . ... . ......... 105
4. Con,umption current test ...... • ............ 107
1. Specificatio ns
Product name: Program module
Model name: CE-1600M
Type: Module (RAM)
Capacity: 32KB
Backup battery: 3V(D e) lithium battery (C R20 32 x l )
Battery life: About 5 years in the pocket computer, or,
about 24 month when removed from the
pocket computer under temperature of 20°C.
(Subject to variation depending on the usage
and environment.)
Operating temperature: 0 to 40 °C
Physical dimensions: 4O.9mm (WI x 42.8 mm (0) x 8.5
mm( H)
Weight: 15 grams, including the battery cell
Accessories: Case, cover label (x 3). space cover, lithium
battery
(i n the mai n unit). instruction book.
2. Parts identificat ion
Proteet
Space cover
MODEL CE.1600M
• 32KB RAM module
5, Parts signal layout
....... , ......... • • ..... 107
6. Circuit diagram
............••.. . . , • •.... 108
7. Parts list and Parts Guide ....... ', . . , • •.... 109
Protect switch
When the switch is set to the side marked with ". ".
memory write
is prohibited so that it disables to write,
erase. and revise the memory contents.
When the switch is at the side not marked. the write protect
is cleared.
•
When it has been write protected. cover the switch with
the cover label
to avoid incidental manipulation of the
switch.
~
~ Cover label
3. Use
This RAM module may be used in the following way:
CD For expansion of user's area.
® For program module separate from the computer's
internal memory.
® RAM fi le
The IN IT statement of
BAS IC must be used to assign it to
the above mode.
User area
The maximum size of the user memory run under the
PC·l600 memory only
is 11,834 bytes. (Fig. 1) If the
machine language area
is reserved or a buffer is reserved
using the command 'MAXF ILES' or 'INIT"COMn: ..
•• it wiJl
become less than 11.834 bytes.
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