Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

My blu-ray just stopped working

C

cric8r

0
Joined
Jul 22, 2008
Messages
103
Points
0
I was using my blu-ray yesterday. It was working fine, but today it won't even shine light.
 





phoenix77

phoenix77

0
Joined
Apr 1, 2008
Messages
3,924
Points
0
Check your batteries, 1st :) Where did you get it ? What host ? If it's a DIY, who made it ? The answers will help us figure out what if anything is wrong ;) rob :cool:
 
C

cric8r

0
Joined
Jul 22, 2008
Messages
103
Points
0
Thats what i thought at first so checked my batteries, they are fine. I made the blu-ray and its in a Kai host from dx. I really think its the diode but i can't find anything wrong with it :'(.
 
W

wicked1

0
Joined
May 18, 2008
Messages
222
Points
18
I've had many blu-rays just stop working... I think most of us here have :)
 
phoenix77

phoenix77

0
Joined
Apr 1, 2008
Messages
3,924
Points
0
Check ALL your wiring EVERYWHERE for a short or disconnection, also your batt. terminals for corrosion or broken contact spring, or wire that came loose ;) Start at the top & go through EVERYTHING :)
 
daguin

daguin

0
Joined
Mar 29, 2008
Messages
15,989
Points
113
phoenix77 said:
Check ALL your wiring EVERYWHERE for a short or disconnection, also your batt. terminals for corrosion or broken contact spring, or wire that came loose ;) Start at the top & go through EVERYTHING :)
Click to expand...

You usually can't "see" anything wrong with a dead diode unless it is giving you LED light.  Here is my "order" for evaluating a dead laser.


c / Battery
c / pull head/module/driver assembly out until the wiring is virtually straight and test again
c / Power wires to the driver for voltage
c / disconnect diode - attach dummy load - test driver for current
c / <<IF driver is bad -- hook diode up to another driver to test diode>>
c / continuity of diode case to module/head

Good luck

Peace,
dave
 
Zom-B

Zom-B

0
Joined
Mar 25, 2008
Messages
895
Points
28
If you have a 100 ohm resistor lying around, hook the laser diode up with a 9v block battery to test.

I know what you experts are thinking, but this is really safe. With the regulation defined as 100/(Vbat-Vf), it will never exceed 50mA or be below 30mA, so it lases and doesn't die.



With this type of regulation, the rule of thumb is, the higher the battery voltage, the higher the resistor should be, and the safer it works.
 
C

cric8r

0
Joined
Jul 22, 2008
Messages
103
Points
0
The thing is i have to evaluate the causes of the problem for this blu-ray because its a side project for a program called IB in school.
 
You must log in or register to reply here.




Top