Question about Mitsubishi Televison & Video
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.
Posted on May 09, 2008
Thank you for posting your concern details however i would be needing few more details from your side if necessary and allow me few mins to come up with the resolution.
Posted on May 19, 2008
The TV indicates an error code 22 (short circuit protection). Check 2 STK392-570 convergence IC for shorts and 5amps pico fuse for open. I usually replace both STK's.
Posted on Dec 26, 2009
2,2 error code is short protection---98% of the time it means one of the two soldered in pico fuses this set uses is blown----there are several---but your problem means if it is ws-65809 one of the two stk-392-570 convergence chips has failed.
I will attach a photo---they are on the middle circuit board and the two to the right are for convergence--both are green and 5 amp--with the set unplugged check both of them like any fuse--no reading means bad.
If you find this--I HAVE START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR IN THIS SET--SHOPS WILL GET 300 or more but you if you can do it yourself buy everything you need for under 40 dollars--I can tell you the best place to get the chips, fuses, etc.
If you want the instructions let me know and I will post them here for you---they are based on my own actual experience doing this repair in this kind of set hundreds of times.
If this information helped you rate this solution as I do this here for free.
Here is a photo of what the two chips look like--The one in the picture says 392-560 but yours uses two that look just like it--STK-392-570.
Posted on Dec 28, 2009
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