Westinghouse LTV-32W6 no picture, no sound

[njdev95av]

the tv will power on but the backlight does not come on and there is no sound when connected to inputs. the power light comes on but it will not turn off until unplugged. the voltage coming off the power board follows:

pins 4-6: 21.1 mV
pin 7: 5.03 V
pins 10-11: 20.9 mV

pictures attached. please let me know which grounds to use when testing the system board and anything else you need to help me. thank you

[PlainBill]

Re: Westinghouse LTV-32W6 no picture, no sound

the tv will power on but the backlight does not come on and there is no sound when connected to inputs. the power light comes on but it will not turn off until unplugged. the voltage coming off the power board follows:

pins 4-6: 21.1 mV
pin 7: 5.03 V
pins 10-11: 20.9 mV

pictures attached. please let me know which grounds to use when testing the system board and anything else you need to help me. thank you

What is the voltage on CN2003, Pin 1?

PlainBill

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

2.99 v

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

cn2003 pin 1 is 2.99V

i don't get anything when i try to check the pins going to the inverter board, cn2002. should there be anything going to them?

[PlainBill]

Re: Westinghouse LTV-32W6 no picture, no sound

CN2003, pin 1 turns on the main supply. For some reason it's not starting up.

PlainBill

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

is it sending the correct voltage or is the problem on the power supply board that i should be looking for?

[PlainBill]

Re: Westinghouse LTV-32W6 no picture, no sound

is it sending the correct voltage or is the problem on the power supply board that i should be looking for?

The problem is on the power supply board. What is the part number of IC1005 (on the bottom of the power supply board)?

PlainBill

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

Ic1005 - 90x2620

[PlainBill]

Re: Westinghouse LTV-32W6 no picture, no sound

Ic1005 - 90x2620

No hits on that number.

PlainBill

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

wrong number, whoops. DLA001D

[gorr35]

Re: Westinghouse LTV-32W6 no picture, no sound

wrong number, whoops. DLA001D

Isn't that a L6598?

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

the only other number on the chip is DLA001D

[PlainBill]

Re: Westinghouse LTV-32W6 no picture, no sound

Isn't that a L6598?

Could be; some %#@$T^$%&^Y*$ companies use house numbers, may they rot in heck.

It's possible to check. njdev95av, with power disconnected what is the resistance from the negative lead of C1005 to pin 10 of IC1005? Also, what is the resistance from J23 to pin 11 of IC1005? From the upper end of R1052 to pin 15 of IC1005?

And lastly, with power on, what is the voltage at pin 12 of IC1005? Use the negative lead of C1005 as the ground point.

PlainBill

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

neg lead to pin 10: 20.3M
j23 to pin 11: 2.74K
r1052 to pin 15: 30.16K
voltage at pin 12: 108.3mV

[PlainBill]

Re: Westinghouse LTV-32W6 no picture, no sound

neg lead to pin 10: 20.3M
j23 to pin 11: 2.74K
r1052 to pin 15: 30.16K
voltage at pin 12: 108.3mV

It appears that is not an L6598.

I'll spend some time going over the pictures and see if I can come up with some other points to test.

If you are in a hurry to get the TV working, it might be a good idea to se if you can buy a working power supply.

PlainBill

[slim8654]

Re: Westinghouse LTV-32W6 no picture, no sound

did you ever figure out the problem with thewestinghouse. i have same model with same issue

[slim8654]

Re: Westinghouse LTV-32W6 no picture, no sound

did you ever find out which component was bad on the westinghouse tv. i am having same issue

[Dgtech]

Re: Westinghouse LTV-32W6 no picture, no sound

Just to add a side note -

I recently had a LTV-32W1. It's not that much different than the LTV-32W6 - boardwise. It gave me similar symptoms. I opened it up and found that the main/tuner board had rusting on it as if it had gotten wet. I was pissed cause I got this on CL from some student. Since most of the rusting was around IC 803 ( a tiny multi pin packaged IC chip on the 3rd picture of the original post), I tried to clean it up the best I could and plug it back in. No Dice.

Now, knowing this board had a problem I didnt really suspect the power board and I ordered a replacement main board on ebay. When it came it had the same exact rusting as the other one did. So now I know that this is from the manufacturer. The replacement board worked - oddly. I still cleaned it up after I tested it, and it retested ok.

[njdev95av]

Re: Westinghouse LTV-32W6 no picture, no sound

i haven't had any luck yet but will still work on it when i get the chance again. if you find out what is going on with yours please keep me posted and i will do the same.