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help how to spark CTV RGB gun

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rodneysccx:
hello to all out there
anyone know how to spark CTV RGB gun
any type of CTV tube
i hope someone know it
bye and thk

tv tony:
it depends on tv chassis used, if set uses osolated chassis proceed with caution, i assume you dont have crt tester\booster. some tubes respond better than others.
identify the control grid, may be common or seperate pins, disconnect any circuitry around it and apply and between the ht (not eht) connect a 60w bc lamp. then ground the appropriate cathode to deck, briefly, if the cathode is not totally stripped youo should be well, as i said different crt,s react differently, u could kill the crt totally

tv tony:
should read isolated

BC109:
Heres a fun way to remove shorts in a CRT tube.

PLEASE NOTE: THIS PROCEDURE IS DONE AT YOUR OWN RISK. IT'S YOUR LIFE, SO TAKE GREAT CARE WITH THE ULTOR HIGH VOLTAGE!  
To remove shorts in CRT, first ascertain if the short is related to the focus, G2,  grids or cathodes.
 
1. Run earth braid in, out, around good pins on CRT, leaving the offending pin exposed.
 
2. Earth good pins to aquadag of CRT.
 
3. If the focus is the offending item, disconnect the ULTOR from CRT, make sure the ULTOR lead is clean from grease etc. Clean with ultrasolve or something similar & wipe dry.
 
4. Turn on TV & spark the focus pin with the ULTOR, you may have to do this twice. Disconnect earth strap reconnect ultor & test.
 
5. If the G2, Grid or Cathode is the offending element, disconnect the FOCUS from the CRT socket, perform the same set up as in steps 1 & 2. again you may have to do this twice also.
 
6. NOTE: IT IS IMPORTANT THAT THE HEATER PINS ARE SECURELY EARTHED, AS YOU DO NOT WANT TO COOK THEM.


Have fun

tv tony:
bit vicous but excellent method

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