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Sharp PC-1360

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Sharp PC-1360
Sharp PC-1360 (service manual cover)
The PC-1360 as pictured on the cover of Sharp's service manual. No freely licensed photograph of a PC-1360 was found.
Specifications
ManufacturerSharp Corporation
TypePocket computer
CPUSharp SC61860A23 8-bit CMOS[1][2]
Memory136 KB system ROM; two RAM card slots for 2 to 32 KB cards (up to 64 KB); 8 KB card supplied[3]
StorageCassette, through the CE-126P or CE-124[4]
DisplayLCD, 24 characters × 4 lines, or 150 × 32 dot graphics[4]
Sound—
PowerTwo CR2032 lithium cells, 6.0 V DC, 0.03 W[4]
Dimensions182 × 72 × 16 mm[4]
WeightAbout 220 g with cells and a RAM card[4]
OS / FirmwareBASIC in ROM[3]
PredecessorSharp PC-1350
Model no.PC-1360; PC-1360K (Kanji)[5]

The Sharp PC-1360 is a pocket computer made by Sharp Corporation as the successor to the Sharp PC-1350. It keeps the PC-1350's case size and four-line, 24-character LCD with 150 × 32 dot graphics, and has 136 KB of system ROM, two RAM card slots and a self-check test program in ROM.[3][4] Sharp's service manual for it is dated August 1986; Wikipedia gives 1987 as the year it superseded the PC-1350.[6][7] A Kanji version, the PC-1360K, uses a different LCD.[5]

The PC-1360's user memory is on plug-in RAM cards: the CE-210M (2 KB), CE-211M (4 KB), CE-212M (8 KB, supplied), CE-2H16M (16 KB) and CE-2H32M (32 KB). The PC-1350's CE-201M and CE-202M cards cannot be used in it.[3][4]

Specifications

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PC-1360 specifications (Sharp service manual)[3][4]
Item Specification
Processor 8-bit CMOS
System ROM 136 KB
RAM System internal 960 bytes. With an 8 KB card: system area 1282 bytes, fixed memory 208 bytes, program and data 6558 bytes, reserve 144 bytes. Up to 64 KB using both slots
Display 4 lines × 24 characters of 5 × 7 dots, or 150 × 32 dot graphics
Keys 62
Serial I/O Asynchronous, half duplex, 300, 600 or 1200 baud; 15-pin connector; CMOS levels (4 to 6 V)
Printer interface 11-pin, for the CE-126P and CE-124
Memory protection CMOS battery back-up
Power supply 6.0 V DC, two CR-2032 lithium cells
Power consumption 0.03 W; about 120 hours with 10 minutes of operation and 50 minutes of display per hour at 20 °C
Operating temperature 0 to 40 °C
Dimensions and weight 182 × 72 × 16 mm; about 220 g with cells and a RAM card
Accessories Hard cover, one 8 KB RAM card (CE-212M), two lithium cells fitted, keyboard template, operation manual
Copying RAM cards can be copied from slot 1 to slot 2

Hardware

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Sharp PC-1360 main board capacitors (service manual)
The 3.3 µF and three 1 µF capacitors on the PC-1360 main board, with their fitting direction (Sharp service manual).
Main parts (Sharp PC-1360 service manual)[1][2][5][8]
Function Part
Processor SC61860A23, with 8 KB of internal ROM
Gate array LZ92K34
System ROM SC69760231 (128 KB)
LCD drivers Five SC43537
LCD LF7117E (PC-1360) or LF7247E (PC-1360K)
Resonator CSB768DMT
Connectors 11-pin on the left side; 15-pin serial on the right side; two RAM card slots
Boards Main PWB unit DUNTK1116ECZZ; memory PWB unit DUNTK1142ECZZ

The block diagram labels the LCD drivers "SC48537 × 5"; the parts list gives the part as SC43537LDN.[1][2]

Sharp's current figures at 20 °C: 25 µA maximum with the power off, 600 µA maximum while displaying and 4.3 mA maximum during calculation; a CE-212M card draws about 25 µA maximum.[9]

Test program

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The PC-1360 has a self-check test program in ROM. With the machine in RUN mode and switched off, hold the V, R, 7 and 1 keys together and switch on to reach the test menu: 1 display, 2 RAM card, 3 KROM & RAM (Japan only), 4 keys, 5 11-pin I/O, 6 15-pin I/O. The I/O tests need Sharp's test tool UKOGC3020CSZZ, and the RAM test destroys the contents of the RAM.[8] Details are in the Sharp PC-1360 Troubleshooting Guide.

Documentation

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Sharp's PC-1360 service manual (August 1986) is hosted as File:Sharp PC-1360 Service Manual.pdf and described on Sharp PC-1360 Documentation.[6]

General maintenance

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Cells, RAM cards and cleaning are covered in Sharp PC-1360 General Maintenance.

Troubleshooting

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The built-in test program, the current limits and the other service checks are in Sharp PC-1360 Troubleshooting Guide.

Capacitor replacement

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The main board has a 3.3 µF and three 1 µF polarised capacitors. See Sharp PC-1360 Capacitor Replacement Guide.

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References

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  1. ↑ 1.0 1.1 1.2 Sharp, Service Manual, Model PC-1360, section 5 "Block diagram" and section 7 "Memory map", printed page 3 (PDF page 3).
  2. ↑ 2.0 2.1 2.2 Sharp, Service Manual, Model PC-1360, section 13 "Parts list & guide", main PWB unit and memory PWB unit (PDF pages 18 to 19): SC61860A23, LZ92K34, SC43537LDN, SC69760231.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 Sharp Corporation, Service Manual, Model PC-1360, code 00ZPC1360SM/E, August 1986, sections 2 "Introduction" and 3 "Specifications", printed page 1 (PDF page 1). Hosted as File:Sharp PC-1360 Service Manual.pdf.
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Sharp, Service Manual, Model PC-1360, section 3 "Specifications" (continued) and section 4 "System configuration", printed page 2 (PDF page 2).
  5. ↑ 5.0 5.1 5.2 Sharp, Service Manual, Model PC-1360, section 12 "Parts and signals position", printed pages 12 to 13 (PDF pages 12 to 13): LCD LF7117 (PC-1360), LF7247 (PC-1360K).
  6. ↑ 6.0 6.1 Sharp, Service Manual, Model PC-1360, back cover (PDF page 21): "1986 August, Printed in Japan".
  7. ↑ Sharp PC-1350, Wikipedia—link(accessed 2026-10-21) "It was superseded in 1987 by the PC-1360".
  8. ↑ 8.0 8.1 Sharp, Service Manual, Model PC-1360, section 9 "Test program", printed pages 7 to 9 (PDF pages 7 to 9).
  9. ↑ Sharp, Service Manual, Model PC-1360, section 6 "Power consumption", printed page 3 (PDF page 3).