Sony bravia kdl26ml130 no remote signals pics this time

[manstoblame]

Re: Sony bravia kdl26ml130 no remote signals pics this time

OK, I did not see the edited reply with the Voltage reading.
I try enlarging the image to see where this cap C320 is. Is that the cap in the OPTICAL SENSOR section where it is connected to the Q320? That section has nothing to do with the remote function. The OPTICAL SEMSOR is for automatic adjustment of the backlights in relationship to the ambient room lights.
The remote function is int he IR section, IC401 is the IR sensor that receives the signal from the remote control. It should have 3.3vdc at the VCC pin of that IR receiver. The output signal that goes to the main board is on pin 8.

Ok so no need to really worry about that one cool but I did test and the voltages were right at these two points

[budm]

Re: Sony bravia kdl26ml130 no remote signals pics this time

So you need to look for the P/N of that IR sensor to find out if the middle pin (output pin) is normally high or normally LOW).
You can put the DCV meter at the middle pin and GND, then hit the remote control button to see if the reading will show any fluctuation or nor, the correct way to test is to use the Oscilloscope.

[CapLeaker]

Re: Sony bravia kdl26ml130 no remote signals pics this time

here is a clip from norcal715 about the same problem.
https://www.youtube.com/watch?v=imF8_DHUPmU

[manstoblame]

Re: Sony bravia kdl26ml130 no remote signals pics this time

here is a clip from norcal715 about the same problem.
https://www.youtube.com/watch?v=imF8_DHUPmU

Thanks I have viewed that before and have it downloaded somewhere guess I need to find which drive its on and re-view it

[manstoblame]

Re: Sony bravia kdl26ml130 no remote signals pics this time

So you need to look for the P/N of that IR sensor to find out if the middle pin (output pin) is normally high or normally LOW).
You can put the DCV meter at the middle pin and GND, then hit the remote control button to see if the reading will show any fluctuation or nor, the correct way to test is to use the Oscilloscope.

OK will do and let you know my findings

[manstoblame]

Re: Sony bravia kdl26ml130 no remote signals pics this time

Oh and also because I forgot I have no power led so maybe fault lies in that area just wanted to thank you guys for the help you gave me and hey budm would it be prudent to assume that most smd beads that are the same size generally are the same resistance? Or if I might be able to remove the bead from another MB for a replacement?

[budm]

Re: Sony bravia kdl26ml130 no remote signals pics this time

As far as the Ferrite bead inductor, as long as they show < 1 Ohms or so, they are good, the bad one will be open circuit.