Bullard Tacsight S1, any info? - Page 1
Forum section: electronics / general

author: tske
author_rank: Regular Contributor
timestamp: May 03, 2025, 12:42:32 pm
content: I cannot find a single datasheet about it, can anyone help?

author: Fraser
author_rank: Super Contributor
timestamp: May 03, 2025, 04:06:19 pm
content: I attach what you have asked forFraser

author: Fraser
author_rank: Super Contributor
timestamp: May 03, 2025, 04:13:46 pm
content: Details of Tacsight accessories .... in the German language.Fraser

author: Goodhot
author_rank: Contributor
timestamp: May 03, 2025, 05:49:13 pm
content: Hello, and I have maybe some information about the LCD for Bullard T3lt, my image has disappeared and I don't know how to restore to the previous state of help, please

author: Goodhot
author_rank: Contributor
timestamp: May 03, 2025, 05:56:55 pm
content: The camera works but does not display anything

author: Fraser
author_rank: Super Contributor
timestamp: May 03, 2025, 07:32:51 pm
content: Goodhot,Sadly there can be many reasons for a display to remain dark whilst the camera is on.From memory, the camera has composite video output on contacts positioned on the underside of the camera. It would be worth checking for video on those contacts as that would show whether the camera and its video output stages are working.If the camera is making the usual “click” as the FFC flag operates, that is good news as it shows the there is life in the cameras front end electronics. No FFC click usually means the camera front end is not running and the potential reasons for this are many. Power supplies are often a good place to start looking for trouble as stressed components tend to fail more often than lowly stressed components.It is possible that the LCD display module has failed. This can be a fault in the display electronics package or a failed CCFL backlight lamp. It is worth shining a torch on the LCD panel to see if there is any evidence of an image present. Backlights and their associated inverters can be repaired. A plain white illuminated LCD usually means a camera that is not sending the video signal to the LCD module, but this is not the case here. You have no backlight and no on-screen graphics so your LCD appears to have a power related issue or a backlight issue, as already detailed.Sadly your camera may require diagnostics by someone familiar with thermal imaging camera architecture. We are rare, but there may be someone in your country who can assist ? I no longer undertake remote diagnostics due to the time it takes compared to “on the bench” diagnostics where I am able to work quickly.All the BestFraser

author: Goodhot
author_rank: Contributor
timestamp: May 03, 2025, 10:25:08 pm
content: The video signal is the camera works properly inside, the electronics also look good, the display is backlit It looks like some display module could overheat because sometimes the image became without contrast or everything was dimmed, it can be fixed, thank you for the answer, greetings

author: Goodhot
author_rank: Contributor
timestamp: May 03, 2025, 10:30:04 pm
content: Like in this picture

author: Fraser
author_rank: Super Contributor
timestamp: May 03, 2025, 11:20:18 pm
content: If the fault is thermally reactive, you could try the good old freezer spray technique of cooling suspect components to see what effect cooling them has.I hope the diagnostics go well for youFraser

author: tske
author_rank: Regular Contributor
timestamp: May 04, 2025, 12:26:13 pm
content: Thank you Fraser!