sanyo no back ligth

[ealequi]

Re: sanyo no back ligth

Is the connector where you measured labeled CN6? List any voltages you are getting.

NC = ? V
BL-On = ? V
BL-Dim = ? V
5V STB = ? V

of course Gnd is Ground and will not have any voltage.

bl_on 1.3
bl_dim 3.2
5vstb 5.v

[ealequi]

Re: sanyo no back ligth

yes

[MisterD]

Re: sanyo no back ligth

Is the connector where you measured labeled CN6? List any voltages you are getting.

NC = ? V
BL-On = ? V
BL-Dim = ? V
5V STB = ? V

of course Gnd is Ground and will not have any voltage.

[ealequi]

Re: sanyo no back ligth

look that i was putting it in the wrong ground. in the black cables there was no reading

[ealequi]

Re: sanyo no back ligth

[MisterD]

Re: sanyo no back ligth

Make sure you have the black negative wire hooked to the metal chassis of the TV, are the black and red wires plugged into the correct ports on the meter itself? can you post a picture of the meter with the two wires plugged in? and also show where you have the dial set? Thanks

[tom66]

Re: sanyo no back ligth

Something is wrong with your meter if 5V measures 9.4V.

[ealequi]

Re: sanyo no back ligth

stv5v 9.4v
gnd 8.7v
bl_on 9.2v
bl_dim 10.1v

[ealequi]

Re: sanyo no back ligth

stb5v 9.4v
gnd 8.7
bl-on 9.2
bl-dim 10.1

[ealequi]

Re: sanyo no back ligth

with the tv powered on, check the voltage on the small white connector that has the 3 black and 1 white wire, it's near the edge of the power supply board, I see it is labeled BL_ON, hook a volt meter with the black probe to chassis ground and use the red probe at the connector making sure it touches the metal part where the wire goes in, set your meter to DC Volts, report the voltage reading back here.

before anything i gave you the wrong model number, the rigth model number is dp42849
Ok. went i use the fluke i set it on automatic and it show this: stb5v-115ac so all the oder. when i use the craftman it show this: STB5V-42.7 GND 39.4 BL_ON 41. BL_DIM 41.6 WISH IS THE RIGTH READING?

[MisterD]

Re: sanyo no back ligth

No. this has no inverter board. just the t-con board

Okay, maybe the inverter is included on the Power Supply board.

[MisterD]

Re: sanyo no back ligth

with the tv powered on, check the voltage on the small white connector that has the 3 black and 1 white wire, it's near the edge of the power supply board, I see it is labeled BL_ON, hook a volt meter with the black probe to chassis ground and use the red probe at the connector making sure it touches the metal part where the wire goes in, set your meter to DC Volts, report the voltage reading back here.

[ealequi]

Re: sanyo no back ligth

No. this has no inverter board. just the t-con board

[ealequi]

Re: sanyo no back ligth

ok i will do that now. thanks

[MisterD]

Re: sanyo no back ligth

ok i will

Sorry, I didn't see the Model Number in Post#1 is sanyo dp48249, I looked at a backlight inverter board like yours at shopjimmy.com and I see that it has some fuses they appear to be white with gold ends, you should check continuity of these fuses to make sure they are not open.

[ealequi]

Re: sanyo no back ligth

[jetadm123]

Re: sanyo no back ligth

Need a photo of the bottom of the power board.

[ealequi]

Re: sanyo no back ligth

this are the new picture

[ealequi]

Re: sanyo no back ligth

Ok this are the new picture for the sanyo DP42647

[ealequi]

Re: sanyo no back ligth

I suggest that you post the Model Number and also take some closeup pictures of the white connectors on the power supply board and be sure that the picture shows the markings on the circuit board at the connector that tells us which pin is which, usually the markings are Stby, PSON, BL_ON, 3.3V, 5V, 12V, 24V.

ok i will