sanyo DP32648 tv will not turn on

[CR Designs]

Have a sanyo DP32648 tv will not turn on. The guy I got the TV from said they were watching it and it turned off and could ever get it to turn on.

Large cab 165 volts
5v yes
12v no
24v no
F1 fuse good
volts at ac board 121v. can you help?

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

Does it respond to the power button in any way? Is there an indicator LED on when the set is plugged in? Does the connector plug on the top right corner of your first pic runs to the inverter boards? If so, could you post a pic of the connector on the inverter board? You may be able to force the PSU and inverters on. If I can see the pin callouts, I may be able to help you. If I can't someone here more than likely can.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

Does it respond to the power button in any way? Is there an indicator LED on when the set is plugged in? Does the connector plug on the top right corner of your first pic runs to the inverter boards? If so, could you post a pic of the connector on the inverter board? You may be able to force the PSU and inverters on. If I can see the pin callouts, I may be able to help you. If I can't someone here more than likely can.

Does not respond to power button,no LED. I will have to take the back off the set to get you pictures you want Also caps all look good

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

In my limited experience, no reponse to the power button, along with no LED was due to a bad main board. I had the same symptoms on a 42" Vizio and a 47" Sharp. Forcing the PSU on will allow you to see if the 12V and 24V rails show proper voltage.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

In my limited experience, no reponse to the power button, along with no LED was due to a bad main board. I had the same symptoms on a 42" Vizio and a 47" Sharp. Forcing the PSU on will allow you to see if the 12V and 24V rails show proper voltage.

Walk me though it. I have not done that.

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

Well, you basically use two 1k ohm resistors. One jumpers from 5V to PS_ON (power supply on) and the other from 5V to BL_ON (back light on) or whatever this set calls it. When you plug the set on, the PSU should kick on, if it's working, and turn your backlights on, if they're working. Let me see if I can dig up a link to show you.

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

https://www.badcaps.net/forum/showthread.php?t=24878

the description starts down in post #6. Scroll down for more instructions.

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

http://www.shopjimmy.com/lg-6632l-04...t-inverter.htm

If your inverter looks like this, it looks like you need to use the resistor to jumper 5V to pin 12 on the inverter, ON/OFF.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

http://www.shopjimmy.com/lg-6632l-04...t-inverter.htm

If your inverter looks like this, it looks like you need to use the resistor to jumper 5V to pin 12 on the inverter, ON/OFF.

Here's the inverter

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

Well, I wanna say it's the furthest pin to the right, I can't read it in your pic. I think it says BEL or something like that but I'm not certain. You might have to wait until someone with a little more knowledge chimes in.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

Well, you basically use two 1k ohm resistors. One jumpers from 5V to PS_ON (power supply on) and the other from 5V to BL_ON (back light on) or whatever this set calls it. When you plug the set on, the PSU should kick on, if it's working, and turn your backlights on, if they're working. Let me see if I can dig up a link to show you.

Here's the connector on my board

[CR Designs]

Re: sanyo DP32648 tv will not turn on

Well, you basically use two 1k ohm resistors. One jumpers from 5V to PS_ON (power supply on) and the other from 5V to BL_ON (back light on) or whatever this set calls it. When you plug the set on, the PSU should kick on, if it's working, and turn your backlights on, if they're working. Let me see if I can dig up a link to show you.

Here's connector on inverter board

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

That connector in the PSU pic goes to the main board though, does it not? Does the connector opposite of that one go to the inverter board?

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

Does the other end of the plug that goes into CN902 on the PSU unplug from the main? If so, with the tv unplugged, unplug the inverter board at the inverter board and the main at the main. Run a 1kohm resitor from the hole in the plug for one of the 5V pins to the hole that runs to PS_ON. Plug the tv in and see if you have voltage at 12V and 24V, if so, see if you have voltage at the VINs in the inverter plug. Maybe this set doesn't have a back light on pin.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

That connector in the PSU pic goes to the main board though, does it not? Does the connector opposite of that one go to the inverter board?

here's connector going to inverter

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

OK, so if you jumper to PS_ON, see if you have 24V at pins 1-5 on CN903.

Have you seen this?
http://www.coppelltvrepair.com/p/189...repair-service

Apparently, I could be wrong about the issue being the main.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

Does the other end of the plug that goes into CN902 on the PSU unplug from the main? If so, with the tv unplugged, unplug the inverter board at the inverter board and the main at the main. Run a 1kohm resitor from the hole in the plug for one of the 5V pins to the hole that runs to PS_ON. Plug the tv in and see if you have voltage at 12V and 24V, if so, see if you have voltage at the VINs in the inverter plug. Maybe this set doesn't have a back light on pin.

I don't have a 1k ohm resistor will have to get one

[johnboy1313]

Re: sanyo DP32648 tv will not turn on

You may be able to use 2 (3V) or 3 (4.5V) AAA batteries to PS_ON.

[CR Designs]

Re: sanyo DP32648 tv will not turn on

Would like to have budm chime in on this if you don't mind

[CR Designs]

Re: sanyo DP32648 tv will not turn on

Does the other end of the plug that goes into CN902 on the PSU unplug from the main? If so, with the tv unplugged, unplug the inverter board at the inverter board and the main at the main. Run a 1kohm resitor from the hole in the plug for one of the 5V pins to the hole that runs to PS_ON. Plug the tv in and see if you have voltage at 12V and 24V, if so, see if you have voltage at the VINs in the inverter plug. Maybe this set doesn't have a back light on pin.

Did resister test it is dead ,don't have the 5 volts now