Hardware Diagnostic Suite
Professional tools to calibrate, test, and repair your audio-visual equipment. Free, online, and instant.
PDF Tool
Printer Test Page
Diagnose ink flow, alignment, and color accuracy. Includes CMYK/RGB charts and grayscale gradients.
Screen Tool
Dead Pixel Test
Detect dead, stuck, or hot pixels using pure full-screen color loops. Compatible with 4K, OLED, and Mobile.
Sound Tool
Audio Channel Test
Verify Stereo separation (Left/Right) and check speaker Phase Polarity to fix hollow sound issues.
Why perform regular hardware diagnostics?
Your hardware degrades over time. Pixels get stuck, printer nozzles clog, and speaker wires can become loose or oxidized. Our Hardware Diagnostic Suite provides browser-based, installation-free tools to identify these issues before they become permanent failures.
🖨️ For Printers (Inkjet & Laser)
Don’t waste expensive photo paper. Use our CMYK/RGB Test Page to check for clogged printheads, color misalignment, and ink density issues. Essential after changing cartridges or long periods of inactivity.
🖥️ For Monitors (LCD, OLED, IPS)
Spotting a dead pixel early is crucial for warranty claims (ISO 13406-2 standard). Our tool flashes pure colors (Red, Green, Blue) to help unstick “stuck pixels” and identify permanent “dead pixels” or backlight bleeding.
🎧 For Audio (Stereo & Surround)
Many home setups suffer from Phase Cancellation (swapped +/- wiring), resulting in weak bass and hollow vocals. Our audio check verifies Left/Right channel separation and correct phase polarity in seconds.
Frequently Asked Questions
Do I need to install software?No. All tools run natively in your web browser (Chrome, Safari, Firefox, Edge). This ensures safety and privacy, as no files are executed on your machine.
Why is this better than YouTube videos?Streaming services like YouTube compress audio and video data.
• For Screens: Compression artifacts can look like dead pixels.
• For Audio: Compression destroys the phase accuracy needed for polarity testing.
Our tools generate raw, uncompressed signals directly from your device’s code.