Sony NSX32GT1 No Power at all


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Sony NSX32GT1 No Power at all

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jus4noles3
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Sep 10, 2016, 1:18 PM

Post #1 of 12 (2268 views)
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Sony NSX32GT1 No Power at all	Can't Post

I am new to TV repair but I think I've done enough research in the past few days to have some basic knowledge of whats going on but wanted to confirm with more experienced people...
The TV has no standby light, does nothing when plugged in or power button is pressed, no noises, nothing.
I started by checking my power cord I have voltage at the cord outlet to the tv, I have voltage on the board side of the power connector, the fuse is good, i have 3.3 V on the standby prong of the power board main connector which I've read is a pretty good sign that the power board is OK. Is this incorrect? Could it still read 3.3v and have a bad resistor or something? Tried checking all resistors that have a visible ohm value written on them and what I have checked has been good so far (not all have a value on them)
The main board is just as expensive nearly as a new television but I like this TV's operating system and dont want to get rid of it.

Anything else I can check to try to isolate this issue?

(This post was edited by jus4noles3 on Sep 10, 2016, 2:03 PM)

jts1957
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Sep 10, 2016, 2:44 PM

Post #2 of 12 (2260 views)
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Re: [jus4noles3] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

Yes other things could fail on PS board.

What is POWER_ON pin doing when you try to start TV?

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Location: Far, Far Away

jus4noles3
New User

Sep 10, 2016, 3:00 PM

Post #3 of 12 (2258 views)
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Re: [jts1957] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

No voltage while checking POWER ON pin and hitting the On button

jts1957
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Sep 10, 2016, 3:58 PM

Post #4 of 12 (2249 views)
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Re: [jus4noles3] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

1,000 ohm resistor - touch between 3.3V and POWER_ON pins.

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Location: Far, Far Away

jus4noles3
New User

Sep 10, 2016, 7:31 PM

Post #5 of 12 (2239 views)
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Re: [jts1957] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

Checking 3.3v and power on pins 0.6V

(This post was edited by jus4noles3 on Sep 10, 2016, 7:35 PM)

jts1957
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Sep 10, 2016, 7:53 PM

Post #6 of 12 (2234 views)
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Re: [jus4noles3] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

Apply the existing 3.3V using a 1,000 ohm resistor to the POWER_ON pin and see if any reaction (Front apron LED turns on, Magic Smoke is released, etc.).

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Location: Far, Far Away

jus4noles3
New User

Sep 12, 2016, 6:11 PM

Post #7 of 12 (2219 views)
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Re: [jts1957] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

I was able to get my hands on a 1500 ohm resistor will that work if not I'll have to order by mail a 1k all radio shacks are closed up near my house don't know where else to buy them

jts1957
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Sep 12, 2016, 6:14 PM

Post #8 of 12 (2218 views)
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Re: [jus4noles3] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

Should be O.K.

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Location: Far, Far Away

jus4noles3
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Sep 13, 2016, 1:03 AM

Post #9 of 12 (2212 views)
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Re: [jts1957] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

Using 1500 ohm resistor on power on and standby pin's no reaction, no apron lights or smoke

jts1957
Veteran

Sep 13, 2016, 2:11 AM

Post #10 of 12 (2206 views)
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Re: [jus4noles3] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

Have you seen: THIS? OR THIS?

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Location: Far, Far Away

(This post was edited by jts1957 on Sep 13, 2016, 2:17 AM)

jus4noles3
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Sep 13, 2016, 3:30 PM

Post #11 of 12 (2174 views)
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Re: [jts1957] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

I've seen those before yes what do you think the next step would be buying one of those repair kits?

jts1957
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Sep 13, 2016, 4:25 PM

Post #12 of 12 (2172 views)
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Re: [jus4noles3] Sony NSX32GT1 No Power at all [In reply to]	Can't Post

It's your set, money & decision.

Quote

The TV has no standby light, does nothing when plugged in or power button is pressed, no noises, nothing.

Both are same kit number and have 'Dead Set' listed.
Strange that one has 5 parts and other 18.

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Location: Far, Far Away

(This post was edited by jts1957 on Sep 13, 2016, 4:26 PM)

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