insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
This is a strange tv. It will not power on when pressing the power button. It gives me 7 flashes of the standby light then cycles the 7 flashes again and again. If i leave the tv plugged in it will turn on after a while all on its own. When it does turn on, the menus on the screen are missing any text. when looking at the video on the screen it seems to be slightly blurry. Any thoughts on what is going on? I have tried to find a service manual with no luck so far. Any kind of help would be appreciated.
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
Hi
can you post some pictures please when the tv is ON.
next step you have to take the tv apart and check visually if you have some bulging caps on power supply. -
Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
There are no bulging caps. I have tested the voltages running from the power board to the main boards. CN901.
1 0v
2 5.2v
3 5.2v
4 5.14v
5 25.01v
6 24.97v
7 0v
8 0v
9 0v
10 12.19v
11 12.15v
12 0v
13 0v
sorry the tv does not have a base and i was holding tv upside-down.Attached FilesLast edited by cherokee.warrior; 07-01-2017, 01:08 PM.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
once tv decides to turn itself on without me doing anything theses are the voltages for cn901.
1 0v
2 5.19v
3 5.19v
4 5.12v
5 24.7v
6 24.7v
7 0v
8 0v
9 0v
10 12.2v
11 12.3v
12 3.20v
13 4.66vComment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
Voltages mean nothing without pin discriptionI assume no responsibility for any stupid suggestions I might post.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
One of the pictures above is the connector in question. Whats in the picture is all i have. Ive been looking for a service manual with no luck.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
When there is no picture can you see image on screen with flashlight?I assume no responsibility for any stupid suggestions I might post.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
here is the connector from the under side of the board.Attached FilesComment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
no. it is not powering on. no image with flashlight. when it decides to turn on then i get image and sound but the menus have no test in them just graphics.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
You seem to have your ps_on but you lose your backlight signal. With your other problems sounds maybe like eepromI assume no responsibility for any stupid suggestions I might post.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
I was kind of leaning that way but trying to figure out what is causing it. Here is a picture of the backside of the power board.Attached FilesComment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
front view of power board.Attached FilesComment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
Yes ps on I do haveComment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
On main board U403 is eeprom. Probably under metal shield. You could try freezing it with air duster upside down and see if it comes on.
I'm number one
Last edited by dskall; 07-06-2017, 05:34 PM.I assume no responsibility for any stupid suggestions I might post.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
you can try heating/cooling the main board to see if the missing signals come back when in fault mode, or force the fault on when it is working.
looks like dskall beat me to this comment. :PWHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
I can not find a u403. here are some pictures of the board with the metal cover removed.Attached FilesComment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
First picture lower leftI assume no responsibility for any stupid suggestions I might post.Comment
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Re: insignia ns-46e340a13 standby 7 blinks - when on, text missing on menus
U403 as shown. What is the discolouration on the top of the ICAttached FilesWilling to help but I'm no expert.Comment
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