Re: KDL-55hx800 has 6 blink code
So I replaced all the components in the repair kit and now the TV is worse. I cant even get the relay to switch.
Pukehead
Member
Last Activity: 07-15-2020, 09:04 AM
Joined: 11-07-2018
Location: Manchester NH
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Re: KDL-55hx800 has 6 blink code
The Sony KDL Service Manual is totally useless. I just ordered the repair kit from shop jimmy. Hope it fixes my KDL-55HX800. 2 blink code.Leave a comment:
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Re: LG 42" 42LD550 start up.
Thanks guys for all your help.Leave a comment:
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Re: LG 42" 42LD550 start up.
So i tried heating up the main chip. Back-light works but i get no menu, sound or anything that resembles an input signal. I ordered a used board off the bay. Hope it works. I'm also going to try and cool the chip better maybe a bigger sink or a fan.Leave a comment:
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Re: LG 42" 42LD550 start up.
Ok i will try that tonight. Do you know what adhesive is under it in case it doesnt stick back on?Leave a comment:
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Re: LG 42" 42LD550 start up.
Ahh. That one. That thing runs hot even in STBY mode. Should i take the sink off it to heat it up?...Leave a comment:
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Re: LG 42" 42LD550 start up.
Yes i did all that early testing.
I tried heating up the board with a hot air station. Just not sure where it needs the most heating. IE what IC/ SMD?Leave a comment:
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Re: LG 42" 42LD550 start up.
I got 1.4 Kohm.
Also, last night i tried to update the software. I plugged in the USB stick and nothing happened. I went to bed and when i got up, The backlights were on and the red led was steady. TV appeared normal.
I turned off the tv, unplugged the USB stick and turned TV back on. Same issue.... no backlight, led pulsing.Leave a comment:
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Re: LG 42" 42LD550 start up.
ok, will do.Leave a comment:
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Re: LG 42" 42LD550 start up.
[ATTACH]202926[/ATTACH]
[ATTACH]202927[/ATTACH]
So I was able to charge the INV/ CTR pin with 2+volts and the back-light comes on. So the power board is working. The red led on front bezel still pulses tho.
The highlighted switch in the schematic when pushed enables the back-lights to flash for one second when the INV/ CTR pin is not charged. I think the issue is somewhere associate in this circuit, but im still not sure.Re: LG 42" 42LD550 start up.
[ATTACH]202926[/ATTACH]
...Last edited by Pukehead; 11-19-2019, 07:25 PM.Leave a comment:
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Re: LG 42" 42LD550 start up.
OK. ill see what i have laying around.Leave a comment:
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Re: LG 42" 42LD550 start up.
What size resistors would you suggest using?Leave a comment:
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Re: LG 42" 42LD550 start up.
BudM do know what that green and black button on the main board does? after pushing the green button and then the black button, the back light comes on for a second. Then the TV shuts down back into standby.Leave a comment:
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Re: LG 42" 42LD550 start up.
Im not sure what board i should be testing now....Leave a comment:
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Re: LG 42" 42LD550 start up.
Without the connector plugged in, I have no voltages on any pin. The TV wont even go into standyby.Leave a comment:
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Re: LG 42" 42LD550 start up.
i will try it with the connector off.Leave a comment:
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Re: LG 42" 42LD550 start up.
Do you know what that little black button on the main board does? Cuz when i push it in, back lights come on for 1 second.Leave a comment:
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Re: LG 42" 42LD550 start up.
Im thinking the same, but when i put 3v to the pin, power board side. Nothing happend....Leave a comment:
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Re: LG 42" 42LD550 start up.
power on:
NC 0.1 / Error 2.3
12v 12.3 / P-dim 2.7
12v 12.3/ A-dim 2.68
12v 12.3/ inv on,off 0.05
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3.5v 3.4/ 3.5v 3.4
3.5v 3.4/ 3.5v 3.4
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20v 23.6/ 20v 23.6
On 3.2/ 20v 23.6
power Off
NC 0.0 / Error 0.0
12v 0.0 / P-dim 0.0
12v 0.0/ A-dim 0.0
12v 0.0/ inv on,off 0.00
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3.5v 3.4/ 3.5v 3.4
3.5v 3.4/ 3.5v 3.4
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20v 0.0/ 20v 0.0
On 0.0/ 20v...Leave a comment:
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LG 42" 42LD550 start up.
My LG 42 LD550 started to glitch out. The screen flashed every 15 seconds like it was getting a bad signal. I turned it off and it would not turn back on. The red led just pulses. There is a blue led in the top corner, seen with the cover off, that lights up and then goes off. These are the voltages i recorded on the connector.
NC 0.1 / Error 2.3
12v 12.3 / P-dim 2.7
12v 12.3/ A-dim 2.68
12v 12.3/ inv on,off 0.05
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3.5v 3.4/ 3.5v 3.4
3.5v 3.4/ 3.5v 3.4
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20v 23.6/ 20v 23.6
[COLOR="Blue"]On 3.2[/COLOR]/...Last edited by Pukehead; 11-16-2019, 02:02 PM.
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