OP
OP
JCOLE
Grower of the Small Polyps
Completed layout over frag tank on new light. Spectrum looks really good. On my DT I am going to use this layout except I will change out the 4 7500K diodes for 20000K for a crisper white. These are the newer Mars Aqua boards with COB diodes so I had to get a little creative.
Prepped and attached new diodes to heat sinks.
What I did first was break the first diode on the incoming negative side so I could use my meter and test voltage for every diode before testing lights to make sure I had a proper connection.
Then I scraped the old diode off the board to break the circuit. Important to do this one at a time for easy testing. Cleaned all old glue, residue, etc off board. Then scraped black paint off both incoming and outgoing circuit to expose the bare copper.
Soldered buss wire from the board to the heat sink. This is where you can use your volt meter to check which side is positive and negative if you are unsure. Once new diode is mounted then you can test the first diode that was scraped off in the beginning with a volt meter for voltage drop. If the voltage is correct then you know you have a good connection. Switch the meter to continuity and this will cause the circuit to light up when applied to the copper of the first diode.
Took a little time but once started it was about 2 hours from start to finish.
Prepped and attached new diodes to heat sinks.
What I did first was break the first diode on the incoming negative side so I could use my meter and test voltage for every diode before testing lights to make sure I had a proper connection.
Then I scraped the old diode off the board to break the circuit. Important to do this one at a time for easy testing. Cleaned all old glue, residue, etc off board. Then scraped black paint off both incoming and outgoing circuit to expose the bare copper.
Soldered buss wire from the board to the heat sink. This is where you can use your volt meter to check which side is positive and negative if you are unsure. Once new diode is mounted then you can test the first diode that was scraped off in the beginning with a volt meter for voltage drop. If the voltage is correct then you know you have a good connection. Switch the meter to continuity and this will cause the circuit to light up when applied to the copper of the first diode.
Took a little time but once started it was about 2 hours from start to finish.
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