This is the service manual of the ViewSonic VA1912w-4_VA1912wb-4 19 inch color TFT LCD display
This Service Manual provides detailed information for the ViewSonic VA1912w-4 and VA1912wb-4 19" color TFT LCD displays (Model No. VS10866). It includes safety precautions, full specifications, front‑panel function descriptions, circuit details, adjustment procedures, troubleshooting flow charts, and parts lists.
The manual also contains exploded diagrams, block diagrams, schematic and PCB layout diagrams, as well as power‑supply specifications and recommended spare parts, enabling service technicians to diagnose, repair, and maintain the displays safely and efficiently.
| Screen Size | 19" wide |
|---|---|
| Luminance (typical) | 300 cd/m² |
| Contrast Ratio (typical) | 500:1 |
| Colors | 16.2 M colors |
| Response Time (typical) | 8 ms |
| Viewing Angle (H/V) | 150° / 130° |
| Recommended Resolution | 1440 × 900 @ 60 Hz |
| Power Input Voltage | AC 100‑240 V, 50/60 Hz |
| Power Consumption (ON mode) | 36 W max / 32 W typ |
| Power Consumption (Active Off mode) | 2 W |
| Audio Amplifier Power | 1.5 W / 2.5 W × 2 |
| Physical Dimensions (W × H × D) | 451 × 391 × 197 mm |
| Weight | 4.5 kg |
| Operating Temperature | -4 °F to 131 °F (-20 °C to 55 °C) |
The manual lists the recommended resolution as 1440 × 900 @ 60 Hz.
In ON mode the display consumes up to 36 W (typical 32 W).
A Schuko CEE7-7 type plug cable, 1.8 m long and black in color, is supplied for Europe.