Sharp PC-1251 Service Manual

SHARP CORPORATION
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Difference between PC 1 250 and PC 1251:
Program data area of the PC-1251 is larger by 2048 bytes.
-t:<
CE-125 option:
Microcassette tape recorder is available as an external memory device and 24-digit
thermal dot printer is incorporated as the output device.
1. PRODUCTS OUTLINE .
2. SPECIFICATION .
3. BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. CPU INTERNAL BLOCK DIAGRAM AND PIN/SIGNAL DESCRIPTION . . 4
5. LCD DRIVE CIRCUIT AND TIMINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. SER VICE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7. SCHEMATICS 10
8. PARTS SIGNAL LAYOUT CHART 11
9. PARTS GUIDE AND PARTS LIST 12
PC-1251
PC-1250
MODEL
CODE: OOZPC1251 ///E
SERVICE MANUAL
SHARP
PC-1251