Can I fix this driver?

pinoy

Newly Enlightened
Joined
Oct 9, 2010
Messages
17
When I turn on my C78 it will start out dim and after a second it will go to full brightness. I probably shorted and overheated something when I was probing the driver with my multimeter. The image below is the driver and I would like to know which part is the likely culprit? I'm thinking of replacing the IC chip first. Where can I get a replacement? Does anyone have a schematic of the circuit? I have plenty of old electronics with smd. Perhaps I can use something from there. Also, is that a diode at the top of the pic?



driver.jpg

driver
driver
 

pinoy

Newly Enlightened
Joined
Oct 9, 2010
Messages
17
It's not the switch. I've done a test where I bypassed it.
 

VegasF6

Flashlight Enthusiast
Joined
Dec 5, 2007
Messages
1,449
Location
Las Vegas
Yes that is a diode. 2A rectifier. That thing looks like it's been put through the ringer!
 

moderator007

Enlightened
Joined
Jan 1, 2010
Messages
990
Sounds like it could Possibly be a bad or disconnected capacitor not letting the pwm go high.
 
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