Problem with a SANYO TV set

[patrickgnl]

TV frequencies are assigned by international agreement, so using a different channel scheme could risk interference with neighbours.

I don’t know about DTMB, but i have a DVB-T/T2 box off ebay, you can select 6/7/8 mhz for bandwidth and also output 480i or 576i ie Pal/NTSC should you so which. Of course most would use 1080P. Both Taiwan and Colombia currently use DVB-T and were ex NTSC 6Mhz countries, which presumably is the reason for flexibility...

[Miguel Lopez]

Yesterday I resoldered the 64 pins of the TV processor. A lengthy and boring process but it worked. The TV set is already working......again.......let's see for how long. I used a fine wire tip for my soldering gun, and power it with 70 volts to reduce heat. I used rosin instead of aspirine as flux.

The "green" is still a problem when powered on. There is no green, just blue and red (and violet of course). Then after some time working the green appears and don't fail anymore. I wanted to give it another round of resoldering on weekend but my wife told me that don't touch it anymore as it is working, so....ladies command. Let's wait to see when it gives another dry joint problem.

Originally Posted by winston_1

Next question is are the set boxes on sale able to be switched 6/8MHz bandwidth?

AFAIK, they aren't

[jhalphen]

Hi to all,

Here's what WikiPedia shows about DTMB broadcasting; Cuba is mentioned :

https://en.wikipedia.org/wiki/Digita...edia_Broadcast

There is often confusion with T-DMB, a digital radio format created and used by South Korea.

The French nearly adopted it & finally went to DAB+

Best Regards
jhalphen
Paris/France

[agardiner]

Originally Posted by Miguel Lopez

The "green" is still a problem when powered on. There is no green, just blue and red (and violet of course). Then after some time working the green appears and don't fail anymore. I wanted to give it another round of resoldering on weekend but my wife told me that don't touch it anymore as it is working, so....ladies command. Let's wait to see when it gives another dry joint problem.

Have a look / reflow the connections on the tube base board. Probably dry joints there causing the lack of green.

[Miguel Lopez]

Originally Posted by agardiner

Have a look / reflow the connections on the tube base board. Probably dry joints there causing the lack of green.

That was the first problem that this TV showed several years ago. I had to resolder the three transistors which drive the color signals to the CRT on the tube base PCB. That is not the case now as I checked for this and they are well soldered.

In Cuba we call that PCB "chispero" (sparkler). Is any particular name for it in English?