CurtPalme.com Home Theater Forum

Untuned · Joined: 03 Dec 2011 Posts: 93 Location: Pooler, GA

So my old crt tv is finally giving up. At first it would not fire up right away, I had to hit the power button a couple of times before it would turn on. Then, it would only turn on once every 24 hours (it was too hard to convince my 3yr old not to turn the set off). Now it won't turn on at all. There is a red light on the front that flashes 7 times, and before that, it was flashing 6 times. I called two different tv repair shops: the first wanted $220 for the repair, the second $90. I'm assuming it is the power supply. Neither of the shops seemed willing to sell me the part and let me install it. Is there any hope? I don't want to spend much on this because it has already overstayed its welcome, but it has such a nice picture, it would be a shame to dump it if there was an easy (and cheap) fix.

**AnalogRocks** · Posted: Mon Nov 11, 2013 4:28 am Post subject:

Easy fix. 2 IC chips. Did my moms TV in August. Took me about 2 hours.

Her's is the 32" 510 4:3 set

**AnalogRocks** · Posted: Mon Nov 11, 2013 4:37 am Post subject:

http://www.avsforum.com/t/928945/you-have-a-sony-that-wont-power-on-and-the-standby-light-blinks-help-and-suggesti/1680

Success! Thank you all for everyone's super helpful comments! I completely forgot my camera, so I'm sorry, no pictures. I don't have any prior soldering experience, but I have been practicing on a couple of old electronics I found lying around.

GUIDE: http://www.avsforum.com/t/1366567/sony-trinitron-wega-rlod-twenty-dollar-repair-guide

- TV Model: Sony KV-40XBR800
- I replaced BOTH MCZ3001D chips with the newer MCZ3001DB
- The locations on the D Board are IC8002 and IC6501
- Soldering Kit: http://www.amazon.com/Elenco-Electronics-ST-12-Soldering-Tool/dp/B0002LLWZY
- Sockets: Yes
- I was going to cut the plastic under the TV, but the model I have is over 300 lbs and didn't want to risk throwing out my back putting the TV on its side.
- Following the guide that someone else had previously posted, I was able to easily remove the D-board and put it in its service position.

(DE)SOLDERING:
I used the pump included with the kit that I bought from Amazon and was able to quickly remove both IC's. I most frustrating part was soldering the sockets back on. The upright position of the board definitely made it more difficult. Not to mention I was only using a solder from a $12 kit. When practicing I was able to quickly solder the parts on and DE-soldering was the hard part. When it came time to do it on the TV it was the reverse... but with a bit a patience I was able to do it.

ISSUES:
Aside from soldering the new parts in, the only other issue I had was lifting one of the transition blocks. The one located closest to the BACK of the TV. (Shown in the top right in the picture below)

* Image was taken from the guide.

USEFUL SOLDERING VIDEOS:
Before my soldering kit came in, I youtube'd some videos. Here are the most helpful and useful ones I found for any soldering beginners out there that need a good place to start:
- http://www.youtube.com/watch?v=fYz5nIHH0iY
- http://www.youtube.com/watch?v=zZkc8GgmVuc

Thank you all, and if anyone has any questions, please let me know!

**AnalogRocks** · Posted: Mon Nov 11, 2013 4:41 am Post subject:

Buy the IC's here: http://www.amazon.ca/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=MCZ3001DB

FYI they shipped me 6, enough to do 3 TV's

Untuned · Joined: 03 Dec 2011 Posts: 93 Location: Pooler, GA

Awesome! This is exactly the type of repair I was hoping for! I'll let you know how it goes!