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Re: Mitsubishi Medallion HD 1080 model ws-48413
Resistor no R5A73 is a carbon film 10K ohm 1/4 watt 5% resistor. I would suggest getting the service manual as it will break down the xray protection circuit and make it easier to find the problem. You can get one emailed to you at the following link I am one of there support techs and they provide unlimitted free tech support for anyone that purchases a service manual
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Some of the older Mitsubishi with HD 1080 have only one component input for HD---it is marked on rear as DTV----also a model number may allow me to give another suggestion--Some of these sets (ws, wt, vs models) will on occasion lock out or disable the input/s.
Depending on model number most also have 3 hidden menus---one is the option menu----it allows with the Mitsubishi remote via a 4 digit number (by model number) to enter there and do a hard reset of the set----sets every setting back to factory original---seen it "cure" all kinds of odd problems from missing rear inputs, no sound, odd video issues---you name it.
Get me the model number and I will see if can find the code for yours--you can also try hooking first direct a 1080 blue ray or Dvd if you want to see if the input is active or not first.
Your model has the V22 chassis when it blinks a 21 cide which is what yours is indicating that maens the set is shutting down due to xray protection. Which means a votage is raising which trips the xray protection circuit and keeps your set from operating
1. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR PROPER SEATING OF CONNECTIONS TO AND FROM THE HIGH VOLTAGE BLOCK. 2. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR A SHORTED IC5A03 PART # 270P704010 AND AN OPEN R5A73 82K ¼ WATT OFF PIN 2 OF IC5A02 ON THE MAIN PCB. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB.