We have a Mitshbishi WS-65869 rear projection TV that is about 5 years old. When we go to turn on the TV, the power light turns on for a second, then just shuts off. There is no picture on the TV. We have tried using the reset button as well as unplugging the TV, and that does not solve the problem. The picture on the set was turning strange colors for the past few days before this happened. We have taken apart the TV before, and there are three bulbs inside. Do we possibly need to replace one or all of them? Or is it something else entirely? Thank you so much for your help!!
Katie
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Re:
One of the 3 CRT's being bad is a possibility but more than that at one time no. If the picture doesn't come on at all or any menus showing up the most likely you have a power supply or high voltage issue. Have a technician look at it for the best diagnosis.
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Replace the Capacitors on the DM board. You can get the WS55859 DM repair kit which covers your model from www.tvrepairworld.com which has the caps and the CD with repair instructions
Check for open pico fuse in power supply caused
by bad convergence I.C.Get pro help-you have a good set to save.Remember--practice visual acuity technique!And,above all else,do no harm!!
They are little green soldered in fuses located on the center board (the one with the STK's on it) toward the rear of the set near the large transformer.
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 device 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. 2. SHUTDOWN AT POWER WITH SELF DIAGNOSIS ERROR 2 2. CHECK FOR OPEN FUSES F9A04 AND F9A05 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT.
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