Service manual for the NEC PG-2740 Multisync Color Data Monitor, covering safety precautions, specifications, adjustments, and schematics.
About this manual
This service manual provides detailed safety instructions, required tools, and procedures for servicing the NEC PG-2740 Multisync Color Data Monitor. It emphasizes the use of isolation transformers, shock‑hazard warnings, and the need for qualified service personnel.
The document includes specifications, control locations, adjustment procedures for horizontal/vertical oscillation, high‑voltage settings, video and audio circuits, as well as full schematic, block, and connection diagrams for repair and calibration work.
What's inside
- Safety Precautions
- Specifications
- Location and Functions of Controls
- Adjustment Procedures
- Schematic Diagrams
- Block Diagram
- Connection Diagram
- Cabinet Drawing
- Packaging
Specifications
| Picture tube size | 27 Inch (Diagonal) |
|---|
| Power supply voltage | AC 120 V, 60 Hz |
|---|
| Power consumption | 645 W |
|---|
| Dimensions (HxWxd) | 530 mm x 520 mm |
|---|
| Weight | 54 kg |
|---|
| Operating temperature range | 0°C to 40°C |
|---|
| Horizontal sync range | 15.5 KHz to 50 KHz |
|---|
| RGB input terminal type | D‑SUB 15‑pin (RGB 2) |
Frequently asked questions
What is the maximum allowed leakage current during a safety check?
The leakage current reading must not exceed 0.5 mA.
What type of picture tube does the PG‑2740 use?
It uses a Type A68KZN696X(T) picture tube.
What are the RGB input connectors on the monitor?
The monitor provides a D‑SUB 15‑pin RGB 2 connector for RGB input.