Brand: NEC
Category: Laptop
Document Type: Manual
Language: EN
Manual for PC-8201
Uploaded: Nov. 21, 2025, 6:29 p.m.
Manual Publish Date: 1983-01-01
Warranty Information
None
Chapter 1: Introduction
This manual provides service information for the NEC PC-8201 Personal Computer. It covers specifications, external views, functional details, disassembly/reassembly procedures, operation tests, and troubleshooting.
1.1 Specifications
Details main components like Keyboard (67 keys), LCD (240 x 64 matrix), and batteries (Four type AA, 4.5 days operation). Mentions CPU (80C85), ROM (32K bytes), and RAM (16K bytes standard, up to 48K bytes optional).
1.2 Switches and Contrast VR
Explains the functions of the POWER Switch, BACK UP POWER Switch, RESET Switch, PROTECT Switch, and DISPLAY ADJUSTMENT DIAL.
Chapter 2: External View
Illustrates the front, back, left, and rear views of the PC-8201, identifying all external connectors and controls.
Troubleshooting and error codes
| Chapter | Section | Subject | Page |
|---|---|---|---|
| 6 | 6.1 | Troubleshooting Flowchart | 6-2 |
| 6 | 6.2 | CPU Peripheral Circuit | 6-7 |
| 6 | 6.2.1 | PC-8201 Abnormal Power Supply | 6-7 |
| 6 | 6.2.2 | PC-8201 Abnormal Reset | 6-8 |
| 6 | 6.2.3 | PC-8201 Abnormal CPU (80C85) | 6-8 |
| 6 | 6.2.4 | Abnormal CPU Clock | 6-8 |
| 6 | 6.2.5 | Abnormal Calendar Clock | 6-9 |
| 6 | 6.3 | I/O Peripheral Circuit | 6-9 |
| 6 | 6.3.1 | Abnormal LCD Display | 6-9 |
| 6 | 6.3.2 | Abnormal SIO2 Port | 6-9 |
| 6 | 6.3.3 | Abnormal BCR Interface | 6-9 |
| 6 | 6.3.4 | Abnormal RS-232C Interface | 6-10 |
| 6 | 6.3.5 | Abnormal SIO1 Interface | 6-10 |
| 6 | 6.3.6 | Abnormal Printer Interface | 6-10 |
| 6 | 6.3.7 | Abnormal Audio Cassette Interface | 6-10 |
| 6 | 6.3.8 | Abnormal I/O Port | 6-11 |
| 6 | 6.3.9 | Abnormal Speaker | 6-12 |
| 6 | 6.3.10 | Abnormal Keyboard | 6-12 |