Question about Mitsubishi WS-55819 55" Rear Projection Television
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Posted on Jan 02, 2017
SOURCE: Mitsubishi WS-55819 power issue
This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR LEAKY C9A60 470 PF 1000 V PART # 154P400030, PARALLEL TO D9A57 ON THE POWER PCB (NOT SHOWN IN THE SCHEMATIC). 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. 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 Aug 12, 2007
CEM-NO, BOTH ICS' WORK ALL 3 CRT YOKES.YOU EITHER NEED TO REALIGN THE RED IN FACTORY CONVERGENCE MODE OR YOU HAVE A RESISTOR THAT HAS FAILED.THE LATTER YOU MAY ACTUALLY BE ABLE TO SEE IF YOU LOOK CLOSELY.OH, ALWAYS DOUBLE CK. YOUR SOLDER CONNCETIONS.GOOD LUCK. JOE TV
Posted on Nov 29, 2007
SOURCE: mitsubishi ws 55819
Bad convergence ic and should replace caps also
· http://www.chrisandnat.com/Projects/BlinkingTV/blink.htm · http://www.jeremyburns.com/Mitsubishi-Green-Blinking-Light-Fix.pdf
Posted on Jan 16, 2008
Sounds like a pincushion problem. You can obtain the service manual and free diagnostic upport at the following link. Hope this helps.
Posted on Feb 03, 2008
Sounds like bad convergence IC's; this set uses two STK-392-570 IC CHIPS; both should be replaced and the blue 3.9 ohm resistors in front of them should be checked. Get someone who has done this repair on this kind of set before--it is usually not something for a do it yourself person; the middle pc board needs to be removed to safely replace the chips; then the set needs to be adjusted in the regular and HD modes. If this is helpful, give me a vote. if you need more direct information email me: firstname.lastname@example.org
Posted on Aug 13, 2009
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