I have sound and no pic ona zenit model number r57w46

in the model listed the set will "turn off" the tubes if No High Voltage, a vertical or horizontal circuit loss of sweep etc.

Need a schematic and a meter to start checking things.

Change tv to another incomming broadcasting signal coaxal cable wire plug into it,might be lucky,the incomming signal wire is the problems.If it is not the incommming signal coaxal wire plug in.Than the tv RED color gun is dead,might have a dead CRT tube RED color gun.This problems is not easy to be fixed or determine.Should hire a tv tech to troubleshoot and rerpair.

Whenever there is a a spark or a flash it generally means high votage(HV) is arching either from the flyback, one of the CRT's or HV splitter/Focus block where the HV is created - It will be easy to diagnose but probably expensive to repair. Parts costs- Flyback and HV block $100-200 and CRT over $300

Cameras suitable for the Zenit фото cнаипер (Zenit Fotosnaiper/Zenith Photosniper) are usually very difficult to find as they're specially modified versions of normal Zenit SLR cameras which incorporate a special additinal shutter release button on the baseplate.

Photosniper versions are generally expensive but broken ones can be cheap. Regular Zenit SLR's are very cheap and often free on Yahoo FreeCycle but I've never yet seen a Photosniper version on there.

Ebay is a good place to look but normally they are sold as part of a complete Photosniper kit. If you do see a body only for sale then the Photosniper versions always have a letter "S" at the end of the name, so a Zenit E is a regular model and a Zenit ES has the modification which makes it a Photosniper SLR.

All Zenit SLR cameras are mechanically very simple and most do not have any complex electronics. This is good, because it means that you can buy a cheap broken Photosniper camera and a cheap regular Zenit SLR and swap the baseplate with the additional shutter button to a regular Zenit to convert it for Photosniper use, the modification usually involves drilling a few holes but it's not difficult.

Hope this helps you to find what you need.

you can get the convergence repair kit at the following link. the kit comes with both ICs and the feed resistors and instructions on how to do the repair.
http://servicemanuals.vstore.ca/product_info.php/pName/zenith-r50w46-r57w46-convergence-repair-kit/cName/convergence-repair-kits

Can you remove the rear panel and check if the hissing is coming from the flyback? Which is a large transformer with a large red wire coming from the top of it? If so can post a link where you can get a replacement their not exspensive and their easy to replace. If its not coming from the flyback post a picture of where the hissing is coming from and I will identify the parts for you, But I feel its the flyback due to the hissing. respond to this same post so I have your correct model number when you reply.

Is Your correct model number a zenith R57W46? If it is your set doesnt have a lamp. Its a CRT projection so you have 3 CRT (picture tubes) RED GREEN an BLUE

need to replace the convergence ICs. Post your model number and I will post a link where you can get replacements.

Hello Was wondering if you ever found anything out how to reset the IC Screen Numbers or what the factory numbers all are on the Zenith Rear Projection TV Model # R57W46? I have the same problem ! My 2 year old son, not knowing how he did it cuze only a technecian is suppose to get into this screen, but he did change numbers in the too. I called zenith themselves and no luck ! My screen is bowed , etc.. Any Help ?