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Planar PLL2410W 24" Monitor Blinking Blue LED Repair

I've been having issues for the last year or so with these monitors failing. Seems they all mostly share a common failure mode, had one with a bad LCD driver chip. The others have it where LED blinks blue and they either flicker the backlight or just stay dark with no image. The menu will not show and it will not display anything but the computer detects the monitor. I've found in almost every one of these they have failed because of bad capacitors. Here's the steps I have taken to repair probably 50 of the monitors so far with nearly 100% success. !!WARNING!! Before starting be sure the board is de-energized and the capacitors are discharged. If you are unsure of how to do that please do not attempt this repair or repair at your own risk. The capacitors on the board can hold lethal voltages especially the large one on the bottom left. !! So far I've found it's mostly the 4 caps on the output rails of the transformer on the psu board that are the cause of the f...
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Recent posts

Prototype Layout Completed and Ordered!

Hopefully they work! Awaiting MFG and then on to assembly!
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New Prototype of Greenhouse Automation system + Weather Station

New prototype on breadboard *RS485 support *Sd card for offline logging *Flash chip for configuration storage *MCP23016 for GPIO extension soon to be MCP23S17 instead PCB Mockup pre fabrication
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Music player EQ updates and other screens

1-64 band parametric EQ (Displaying 31 bands) Supports gstreamer visualization plugins With support for pandora radio using libraries from the excellent Linux pandora client Pithos
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Weather Station v1

Completed device in the garden Freshly laid out and putting the larger DIP socket in backwards but that's ok. Had the first bit working while I waited on parts in the mail Better than the first time I tried to solder traces Programming using an arduino with a 5v to 3.3v shifter In its box, and it works! Last 5 Days Last 12 hours Github Code
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Deskpad widget

Deskpad desktop widget Try the new (old) deskpad widget! quickly write and have ideas and inspirations stored for your future viewing convenience! Deskpad github repo Pinned Almost invisible without any mouse-over or interactions at all With mouse-over event occurring Gets semi visible on mouse-over
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Lets start over

I've decided to start from scratch again, I didn't think the way I was headed was where I wanted to go Updated source code I've made an ATMega328p as the primary chip now running at 3.3v and 2MHz with the ESP as a slave WiFi device. I couldn't find a graceful way around the esp crashing and being able to run long running tasks. I may have had sloppy code or was just trying to use the chip as something it just wasn't good at. There is a SRAM chip to store the readings in the event of a crash and simply because I didn't have enough space on the atmega to store as many reading in backlog as I wanted. In it's enclosure Being Programmed: You can see the red programmer cable in the upper left Main Component BOM (Not including sensors or charger) SRAM Chip Clock (On a breakout with its own battery backup and crystal) I/O Expander ESP8266 ATMega328p
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