Philips 32PFL3605\12 TPM4.1E LA No Power

[trunks81]

Hello

Ive got an 32 inch where i see some strange things.
There are no standby lights on the chasis, the blue led on the back of the smps lights up and slowly fades away.
When board is connected in the tv the 5vsb is 5.3V
And also the pfc is 386v instead of 400v, There is 12v and 24v only is 25,7v

[trunks81]

Re: Philips 32PFL3605\12 TPM4.1E LA No Power

i found that an common problem is that U7106 is defective on the M/B !
only when i measure mine iam getting 3.3V so that should be oke

[trunks81]

Re: Philips 32PFL3605\12 TPM4.1E LA No Power

I whas wrong .. tv starts up but there is no backlight

[budm]

Re: Philips 32PFL3605\12 TPM4.1E LA No Power

What Voltage do you have on at the EN (BL-ON) pin and DIM pin?

[trunks81]

Re: Philips 32PFL3605\12 TPM4.1E LA No Power

Found the problem.. supply needs to be modified in order to work again!
See solution in the attached files.