LS-R301A receiving card for full-color LED displays
The Listen Vision LS-R301A receives data for a compatible LED screen. The original specification table distinguishes typical values from maximum values; keep that distinction when matching a replacement card to the module and screen configuration.
| Parameter | Typical | Listed maximum column |
|---|---|---|
| Single-card full-color area | 256 × 128 pixels | 512 × 128 pixels |
| Output data | 16 groups | 16 groups |
| Gray levels | 4096 (4K) | 65,536 (64K) |
| Frequency | 15MHz | 32MHz |
| Refresh rate | 300Hz | >4096Hz |
| Brightness loss | 15–20% | <5% |
Configuration and replacement checks
Network-drop detection and OE polarity switching are listed functions. Confirm the exact board revision, connector layout, scan mode and driver IC before replacement. The source does not state the conditions for all maximum figures, so do not assume the maximum loading, grayscale and refresh values are achieved simultaneously. The brightness-loss entries are retained under the original column labels.
Frequently asked questions
What is the typical LS-R301A loading area?
The table lists 256 × 128 pixels for a typical full-color single-card area.
What maximum loading area is listed?
The maximum column lists 512 × 128 full-color pixels. Confirm the applicable module and operating configuration.
What refresh-rate figures are given?
The typical column lists 300Hz, while the maximum column states greater than 4096Hz. The source does not provide the conditions for these figures.
Does 64K refer to video resolution?
No. In this table, 64K refers to 65,536 gray levels, not a video resolution.
What should I check before replacing this card?
Check the LS-R301A model and revision, connector layout, LED module scan mode, driver IC and working configuration.
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