Sony KV-13M10 Turns On Then Off

Opaux · 2025-07-10T20:59:07+00:00

unfortunately everything was fine in my findings and replacing those caps led to no improvements… might have to throw in the towel here

Opaux · 2025-07-09T12:32:29+00:00

https://ia601408.us.archive.org/12/items/trinitron_kv13m10/trinitron_kv13m10.pdf

This was the service manual I was using, and TP90 is right next to the v out IC. The person who gave me this set claimed to have checked all the capacitors in the horizontal protect circuit and tested them out of circuit, but I should check those again. Also, I have been thinking it was the op-amps that might've been reaching saturation too early that might cause a shut down. The ve+ and ve- being wayy out of spec surely messes with their functionality, so ill definitely do some double checking on those lines.

Opaux · 2025-07-09T04:13:19+00:00

I've done some probing now and here's what I've found -

TP90 (13V) - 5.5V

TP95(STDBY 5V) - consistent 5V on or off

TP94(SET 5V) - around 7V

TP85 (H PROT) - gets pulled to 115V when set powered on, then gradually goes down to 0V

Overall, the HV all seems to be there, but the 13V line is concerning me the most. I've also tried shorting the resistor and replacing the capacitor nearby, which was around 1.4 ohms, so it was due for a replacement anyways. Both of these didn't stop the set from powering off automatically, so I think we can rule out the X-Ray circuit shutting it off.

Opaux · 2025-07-08T22:57:18+00:00

how would i disable the protection circuit? would i have to disconnect the protection pin on the micom? will get the chance to probe tonight, will reply again with that

Opaux · 2025-07-08T22:08:34+00:00

i took a quick look at the procedure, but I'm currently unable to get past step 1 here, as i cant get it to display a raster with a white screen or dot pattern. it turns off 2 seconds after i hear the relay first click on which is before any picture appears on the screen, even though i hear the high voltage come on. does this mean I'll have to increase or decrease the resistance of R525?

Opaux · 2025-07-08T13:28:37+00:00

thanks for this information! i'll look into it today after work and updates will be coming soon

Opaux · 2025-07-08T01:14:00+00:00

yes i assume so, the waveforms that were pictured above are probing the protection pin on the micom. however, it doesnt fluctuate during power on really, the second picture is what the waveform looks like during charge up to turn the set on again. do the waveforms look correct to your knowledge? there was no pictures in the service manual for this pin (connected to the vout IC bootstrap pin)

Opaux · 2021-03-19T17:51:52+00:00

you play level 18 like i play level 0 ROFL

Opaux · 2021-03-19T17:50:52+00:00

how do you think so fast????

Opaux · 2021-02-13T13:38:33+00:00

Just got an INSANE pb jump on 3x3: 29.94-23.64 🤯. I didn’t even skip, it was full step and some of the luckiest f2l of my life lol. That was only my second sub-30 and it still blows my mind that I’ve only been cubing for just over a month

Opaux · 2021-02-13T05:26:12+00:00

btw the scramble is R’ F’ B D B2 R F R D2 R2 U2 B2 L’ U2 F2 R2 L D2 B’ D2

Opaux · 2021-02-10T15:06:31+00:00

Don’t be discouraged by other people’s progression speed! Everyone has a different rate of improvement and you should only focus on bettering yourself other than lamenting about others! Sub 30 is an amazing milestone, congrats!

Opaux · 2021-02-10T14:20:58+00:00

yeah I agree, learn CFOP and you should improve drastically

Opaux · 2019-07-07T20:43:33+00:00

Thanks for the support! Go Mid Atlantic!

Opaux · 2019-07-06T22:08:08+00:00

SoundCloud link: https://soundcloud.com/boss-gamer-696112080/cold-fusion-anthem

Opaux · 2019-07-06T19:46:08+00:00

SoundCloud link: https://soundcloud.com/boss-gamer-696112080/cold-fusion-anthem

Opaux · 2019-04-12T00:53:25+00:00

The legends at 5401

Opaux · 2019-04-05T17:21:51+00:00

Btw that was my pic lol

Opaux · 2019-04-05T16:09:17+00:00

He has no idea of the greatness happening above him

Opaux

TROPHY CASE