YOUR REMOTE NEED TO CHANGE INPUTS BUT DON'T SEE AN INPUT BUTTON? TV/VIDEO BUTTON SHOULD SWITCH WANT TO CHANGE PICTURE SIZE ON TV? LOOK FOR PICTURE MODE, ASPECT, ASPECT RATIO, FORMAT BUTTON ____________________________________________________________ CRT BURN IN. EX. IF NEWS STATION IS LEFT ON ALL DAY, SCROLL BAR AT BOTTOM CAN BURN IN. IF TV ASPECT IS 4:3 W/BARS AT SIDE THAT CAN BURN IN. _____________________________________________________________ TV SET TOP BOX / DOWN CONVERTER BOX TAKES HIGH DEFINITION AIR SIGNALS AND CONVERTS IT TO ANALOG FOR A REGULAR TV. ____________________________________________________________ PROJECTION TV SCREENS 1 - SMOOTH PROTECTIVE 2 - UP AND DOWN RIDGES LENTINCULAR 3 - PSYCHADELIC SWIRLS FRENSNAL ___________________________________________________________ PROJECTORS PICTURE UPSIDE DOWN? THRU MENU IMAGE C/B REVERSED. __________________________________________________________ 8MM + MINI DV FORMAT CAMCORDERS NO AUDIO HEAD. DRUM ASSY WRITES TO TAPE VHS HAS AUDIO HEAD ____________________________________________________________ MOSTLY RCA TVS NO SOUND ARE SPEAKERS ON? SOME HAVE A SWITCH IN THE BACK, SOME THRU THE MENU. DOES CUST. WATCH TV W/ DISH OR DIRECT TV? SOME HAVE A COMMUNICATION PROBLEM AND YOU MUST UNPLUG THE TV AND THE BOX FOR A BIT THEN SOUND SHOULD COME BACK ON. ______________________________________________________________________ POWER PROBLEMS.. IF A PICTURE TUBE DRAWS TO MUCH CURRENT IT WILL SHUT OFF THE TV AFTER AWHILE. PTV CONVERGENCE IC'S BECAUSE THEY ARE SHORTED CAN STOP THE TV FROM POWERING UP. CHOPPER IC CAN BE BAD. ALSO CAPS AND RESISTORS WITHIN POWER SUPPLY PTV UNCOMMON IF IT HAS A CONVERGENCE ISSUE CAUSED BY HV TRANSISTOR ISSUE __________________________________________________________________________ CONVERGENCE PROBLEMS GLOWING PICTURE CAN BE A SLIGHT CONVERGENCE SHIFT. COLOR DIFFUSED / GLOWING PICTURE TUBE FLUID COULD BE CONTAMINATED EX: BLUE HAZE? C/B BLUE TUBE CONTAMINATED RECENT MOVE? ALIGNMENT OFF ON PTV? COULD NEED YOKE ADJUSTMENT. SIDES OR TOP CONCAVE? COLORS WONT ALIGN? C/B POWER SUPPLY TO CONVERGENCE BOARD OR CONVERGENCE AMP IC DRAWS TO MUCH CURRENT OR BOARD ITSELF _________________________________________________________ REGULAR TV PICTURE PROBLEMS COLOR GUNS AT NECK OF PICTURE TUBE COULD GO OUT. (ZENITH) THERE ARE ALSO VIDEO AMPLIFIERS AND MICROPRESSORS THAT CONTROL COLOR.(ZENITH) BLURRY AND LIGHT PICTURE - SCREEN VOLTAGE MAY BE OFF. PSYCHADELIC COLORS ALL OVER - MAY BE SHADOW MASK. NO PICTURE AT BOTTOM AND LETTERING BACKWARDS? C/B VERTICAL SYNC IC ROLLING PICTURE? PTV 2 IS VERTICAL SYNC PROBLEM PICTURE MOVING AND WAVY? PTV 2 C/B DEFLECTION PROBLEM SONY BLINKING PICTURE CRT / PICTURE TUBE IS PROBABLY GOING OUT. _______________________________________________________ REAR PROJECTION LCD TVS' (DLP'S TOO) NO PICTURE HAS AUDIO? LAMP NO PICTURE NO OSD? NEEDS LAMP. NO PICTURE, HAS OSD? PROBABLE CONNECTION PROBLEMS NO PICTURE - NEEDS LAMP ZENITH PROBLEM AREA IS MANY E44'S AND RU44'S CAN NOT BE CHANGED OUT BY CUSTOMER. LAMP ONLY IS AVAILABLE AND NEW LAMP REUSES OLD HOUSING. LAMP DOOR IS SHOULD BE RIGHT SIDE. SOME SCREWS ON DOOR AND MAY BE SOME INSIDE HOLDING LAMP IN. YOU SHOULD SEE CAGE AND IT HAS A BAR TO PULL LAMP HOUSING OUT. OTHER PROBLEM IS A SERVICE REMOTE IS NEEDED TO RESET LAMP HOURS TO ZERO. HOW IT WORKS: PICTURE IS MAGNIFIED BY A LENS AND PROJECTED TO MIRROR THEN THRU SCREENS _________________________________________________________________ DLP Whirring noise? Could be Color Wheel __________________________________________________________________ FUNAI PLASMA Y & Z SUBSTAIN BOARDS ARE USUALLY ONLY AVAILABLE W/PDP PANEL. _____________________________________________________________________ ANY TV CHIRPING NOISE? HORIZONTAL OUTPUT SHORTING MAKES CHIRPING NOISE. PICTURE CAN GET SMALLER AT FIRST, THEN NO PICTURE THE CHIRPING NOISE. UNPLUG SET TO STOP NOISE. HIGH PITCHED WHINING NOISE? FLYBACK C/B AT FAULT FYI - FLYBACK HAS AN ADJUSTMENT ON PART ITSELF (WHEN CHANGING) __________________________________________________________________ EDTV PROGRESSIVE PAINTS 480 LINES ALL AT ONCE. (THATS THE WAY YOUR EYES SEE IT) 1 FIELD EVERY 1/30 SECOND. INTERLACED 1080 ODD LINES FIRST THEN EVEN LINES EVERY 1/30 OF A SECOND. SDTV (REGULAR TV) SCAN ODD LINES 1/60 SECOND AND THE EVEN 1/60 PROGRESSIVE VS INTERLACED IF YOU'VE GOT A DVD CONNECTED TO COMPONENT OUT AND THEN IN TO TV IF IT SHOWS A DOUBLE / SPLIT SCREEN IMAGE IT COULD BE THE TV IS INTERLACED AND THE DVD PLAYER IS PROGRESSIVE - OR VISA VERSA. IF BOTH ARE SAME, OR TV JUST SHOWS IMAGE THAT WAY THEN IT COULD BE A SYNC PROBLEM. ______________________________________________________________ PANASONIC RESET PASSWORD IF TV IS ASKING FOR PASSWORD AND YOU DONT KNOW IT. ON TV ON REMOTE HOLD VOLUME DOWN HOLD OK _____________________________________________________________ LCD TVS SOME YOU CAN GET TO BACK OF SCREEN, SOME YOU CANT. THAT MEANS IF DUST GETS BACK THERE A TECHNICIAN MAY BE ABLE TO CLEAN IT. WOULD HAVE TO LOOK UP THE SERVICE LITERATURE TO SEE. _____________________________________________________________ SAMSUNG BAD PANEL SYMPTOM PICTURE OK THEN AFTER 20 MIN OR SO, SCREEN TURNS WHITE, PICTURE VERY LIGHT AND SHUTS OFF AND ON OFF AND ON TILL YOU UNPLUG THEN IT REPEATS. BAD PANEL