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help in usbasp avr circuit

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Setting jumpers:
J1 Power target
Supply target with 5V (USB voltage). Be careful with this option, the circuit isn't protected against short circuit!

J2 Jumper for firmware upgrade (not self-upgradable)
Set this jumper for flashing the ATMega(4)8 of USBasp with another working programmer.

J3 SCK option
If the target clock is lower than 1,5 MHz, you have to set this jumper. Then SCK is scaled down from 375 kHz to about 8 kHz.

I'm not sure about the leds.

I had problems without the zeners and the programmer wasn't recognised, I think it depends on the specific USB implementation but I would suggest you use it
 
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