Maybe the LEDs are damaged?
I checked through multimeter continuity mode leds are fine
This pcb short circuited? 220v capacitor and 470 k ohm resistors show reading in multi meter.
Just out of curiosity - how many more trinkets do you have with fundamentally flawed and dangerous power supplies that you are going to stick your fingers into?
Did you actually read Koepel's warning? This thing is a death trap, especially in uneducated hands. That it self-destructed is actually a blessing. It can now be replaced with something decent.
In my place this device not available in market anyway I have to repair it.
Nonsense. A small 9V or 12V switch-mode power supply can be found anywhere in the world, right down to rural Mongolia if need be.
I purchased a new 12 volt dc supply still led not glowing?
Post an updated schematic that shows how you hooked up the LEDs to the 12V power supply and also a photo that clearly shows the connections.
post # 43, show picture of another side
Apparently that situation is outdated now that the new 12V DC supply has arrived.
Why do you think 12 V is enough? It looks like there are 12 LEDs on the board. Probably they are in series and are white with 3 V forward drop. That needs 36 V.
And again: Did you test the LEDs? They may be damaged (too) and no PS fix will help until you replace them.
I connected to 12 volt dc supply I tested leds beep sound giving both the led terminals in multimeter. How you can say led damaged.leds not glowing.
What does that mean?
And since when is 'beeping' a viable way to test an LED? Hook up each LED to a 10mA constant current source, ensuring polarity is correct, and if they light up, THEN they are OK. Beeping etc. says nothing at all.
Also the way you hooked up the power supply won't work this way. Please read @Smajdalf's reply. It can work if you hook up a string of e.g. 3 leds with an appropriate current limiter resistor.
But saying all this while reading your replies makes me sort of hopeless since you evidently are absolutely clueless on anything related to electronics. Nothing wrong with that, but PLEASE either start learning the basics, or go do something that comes easier to you.
Hi,
Can you please post an image of the other side of the LED board?
Thanks.. Tom.. 
Hi,
Have you checked every individual LED with your DMM in LED/Diode test mode?
That is with the leads disconnected.
As that array of LEDs has no current limit resistor it needs a current controlled power supply.
"12V LED DRIVER AC"
Sounds very worrying about its credibility when it has + and - DC output terminals.
Thanks.. Tom..
I checked every led with multi meter. All shows reading in multi meter. But leds are not glowing with multi meter.
Hi,
What were the readings?
Were you able to identify the Anode and Cathode of each LED?
Tom...