Hello, i am working on Samsung 40led tv with power supply BN44-00666A . Tv had no backlight and upon replacing 1 complete led strip all of the leds inside tv power on now but not to full brightness.
Voltage to leds should be 135 VDC as per print found on ps but I am getting 96 VDC across D+ and chassis ground. If led connector is disconnected i get 215 VDC on D+ and chassis ground. With led strip tester all leds turn on nice and bright at 102 VDC
All leds test out good and power on together but not to full bright even when backlight is set to max. When I purchased replacement strip it listed same part number but when it arrived its same looking strip but different revision number of it. could that somehow account for 40 VDC missing.
Thank You
Voltage to leds should be 135 VDC as per print found on ps but I am getting 96 VDC across D+ and chassis ground. If led connector is disconnected i get 215 VDC on D+ and chassis ground. With led strip tester all leds turn on nice and bright at 102 VDC
All leds test out good and power on together but not to full bright even when backlight is set to max. When I purchased replacement strip it listed same part number but when it arrived its same looking strip but different revision number of it. could that somehow account for 40 VDC missing.
Thank You
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