TV is 18 months old

Turn it on, blue power light is on, the backlight comes on, it shows the SCEPTRE logo on the screen for a few seconds, and the source input picture shows for about 1 second, then the TV turns off.

When it goes off, the power light goes to red (this is off/standby), so it's not just losing backlight.

When the power is on, blue light, the 5V and 12V on the power supply are good. The 24v to backlight is good. The 5v Standby power is ALWAYS good. When the TV turns off, the 5V and 12V and 24V go to 0, but the Standby 5V stays up... that's all...

Re: MS-7548 Replaced Caps - No Fix



There are 4 TK by the memory slots, they are the same as the others, 6.3v 1800uf. I replaced those along with the ones next to the CPU.

Also, there are 2 TK to the left of the CPU, and 1 TK to the right of the CPU. Those are also the same, 1800uf 6.3v and I also replaced those at the same time.

About the quality of the job. I looked over them all again, and the solder appears to have taken on all of them.

I measured the voltage at each cap.

At all the ones around the CPU,...

Re: MS-7548 Replaced Caps - No Fix

Here are the pictures....

Re: MS-7548 Replaced Caps - No Fix



When I plug in the power cable, the fan spins for just a tiny instant, as it does on many computers.

When I push the power button, it spins for a bit longer, like a full second, then it stops spinning (as though it started to run, but then something causes it to power off).

If I power it without RAM, it does the exact same thing. I've tried other ram sticks in other slots to eliminate the chance of bad RAM.

Where did I get the Panasonic FL from? I don't remember. They are some I had,...

Re: MS-7548 Replaced Caps - No Fix

I replaced all of the TK 6.3 1800uf caps, as they were all buldging and leaking badly. I replaced them all with Panasonic FL 6.3v 1800uf.

i replaced 9 around the CPU, and 6 elsewhere on the board.

All the other caps appear to be okay, and they are not TK (except for some very tiny one's that might be, but they are not buldging or leaking.) Those would be quite difficult to replace, as they are very small.

About the power supply... I have another known-working power supply that I am also trying on it,...

I replaced caps on a MS-7548, as indicated in the other MS-7548 thread. [url]https://www.badcaps.net/forum/showthread.php?t=14659[/url]

However, after replacing all of the TK caps, it still won't post.

After pressing the power button, the CPU fan spins for about 1 second and then it stops. No post, no beeps, no video. The power supply turns on and the hard drive spins up. I also tried another known-working power supply.

This was the same symptom before replacing caps.

Are there any components that could have gotten damaged by the bad...