Source 4 LED Series 3 Hardware Revisions and Changes
This article contains important details about changes made to the Source 4 LED Series 3, which may be important when ordering spare parts or repairing the fixture
Clutch plate screws
The 4 screws joining the clutch plates to the bottom casing were changed from M5 to M4, and the bottom casing was revised to match the new screw sizes starting in March of 2025
Old: HWM1984
New: HWM1986
These have incompatible threads, so choose the correct one to go with your bottom casing based on when your fixture was manufactured
Casing screws
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The 4 screws joining the top casing to the bottom casing were switched from imperial #8 to metric M4, and the bottom casing was revised to match the new screw sizes. This change happened around August 2022.
Need a new screw? Current type will need to be determined Need new top metalwork? Top metalwork remains unchanged Need new bottom metalwork? All currently shipping bottom metalwork has M4 threading, order 4x HWM1971 as well |
Handle and lower casing
Source 4 LED Series 3 originally shipped without a plastic handle
Later, the bottom casing metalwork was adapted to accommodate the handle
It is not possible to attach a handle to older casings with no holes
See this article for more information
Driver Fan Screws
Fixtures built prior to 2022 used barbed rubber to mount the driver fan, instead of screws. When replacing the fan on those fixtures, you'll also need the 4 screws: HWM1609.
Driver Fans
Driver and Control Card Compatibility
Changes were made to the control card and drive card, meaning that not all cards are compatible with each other.
There are two kinds of part numbers referenced below
- Part numbers containing a "B" are unprogrammed boards. Those are the part numbers you'll see labeled on your fixtures' circuit boards
- Part numbers containing a "K" are boards that are pre-programmed and ready for installation into a fixture
The latest revision of control card (7462B5616) is backwards compatible with any and all revisions of driver (7462B5603 or 7462B5617). This will require the use of the fixture software v1.1.2 or later. It will not work with previous versions of software.
The opposite is not true. You cannot use an old control board (7462B5605) with a new driver board (7462B5617). So if replacement of an older driver (7462B5603) is necessary, a new version of UI control card is required to operate properly.
| VUI Control CardV | >Driver Board> | 7462B5603 (sold as 7462K1003-1.1.0 or lower) | 7462B5617 (sold as 7462K1003-1.2.0 or higher) |
|---|---|---|
| 7462B5605 (sold as 7462K1004-1.1.0 or lower) | Compatible - All firmware versions | Incompatible - Replace with 7462B5616 |
| 7462B5616 (sold as 7462K1004-1.2.0 or higher) | Compatible - Update fixture to 1.1.2 or Higher | Compatible - Update fixture to 1.1.2 or Higher |