What the actual Fu*k. Help needed ?????

DankaDank

DankaDank

Well-Known Member
2 x Samsung LM561c boards. 304 diodes @ 108v per board
Wired in series of a HLG-185H-C700B

When powered diodes light ever so slightly on one end of each board.

Tested each board with a different driver and they work perfect.
Tested driver with multi-meter and its voltage output is on point.
Tested continuity between all connectors with no issues.
Double checked plug wiring.
Dimmer is fitted with a 10k resistor so cant be shorting.

Here is some imagesWP_20180208_20_41_11_Pro.jpg WP_20180208_20_42_05_Pro.jpg WP_20180208_21_34_55_Pro.jpg WP_20180208_21_40_40_Pro.jpg

I'm baffled. Any help here would be greatly appreciated.
 
Last edited:
canadian1969

canadian1969

Well-Known Member
one of my electronics teachers back int he day said "there are only three types of faults" in order of least difficult to most difficult to solve, opens, shorts and intermittents. It stuck with me and always served me well. I hate that WTF zone lol
 
Go go n chill

Go go n chill

Well-Known Member
DankaDank said:
2 x Samsung LM561c boards. 304 diodes @ 108v per board
Wired in series of a HLG-185H-C700B

When powered diodes light ever so slightly on one end of each board.

Tested each board with a different driver and they work perfect.
Tested driver with multi-meter and its voltage output is on point.
Tested continuity between all connectors with no issues.
Double checked plug wiring.
Dimmer is fitted with a 10k resistor so cant be shorting.

Here is some imagesView attachment 4086557 View attachment 4086560 View attachment 4086561 View attachment 4086562

I'm baffled. Any help here would be greatly appreciated.
Click to expand...
You have a wiring issue causing a voltage drop
 
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