Question about Mitsubishi WS-65809 65" Rear Projection Television
We moved our Television to another area of the living area, and now all we get is a green flashing light that wont stop to power up the TV.., could you please help fix this issue
There could be a variety of problems:
1- CHECK FOR 12 VOLTS DC (AC-OFF DETECT) AT PIN 3 OF PC9A21 IF MISSING REPLACE PC9A21 PART # 268P058020 ON THE POWER PCB. 2. SHORT DETECT SHUTDOWN (PIN 13 OF IC700) CHECK FOR OPEN L902 PART # 351P155010 OFF Q904 C (15 V SUPPLY) ON THE MAIN PCB. 2- SHORT DETECT SHUTDOWN (PIN 13 OF IC700) CHECK FOR SHORTED D913 PART # 264P722010 AND OPEN Z901 PART # 283P039020 (Z905 AND Z900 M. 3- CHECK FOR BAD CAPACITORS IN DM MODULE. 4- CHECK FOR 10 VDC AT PIN 5 OF IC502 OF LOW, CHECK IC503 PART # 270P704010 ON THE MAIN PCB. 5- SUSPECT SHORTED WINDINGS OF T5A31 PART # 349P216010 ON THE MAIN PCB. 6- 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. 7- SHORTED HORIZONTAL OUTPUT TRANSISTOR. 8- COOLENT HAS LEAKED ON THE MAIN BOARD FROM THE CRT'S AND HAS DAMAGED THE MAIN BOARD BEYOND REPAIR. also if the 24 volt B+ and or B- Is missing from the convergence ICs, change both convergence ICs as well as the defective pico fuse in the power supply. This is not a quicky type of repair most likely. These are a few of my notes on this Set from me and a few of my buds in the buisness. Good Luck and let us know how you made out with this set.
Posted on Sep 12, 2008
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Posted on Jan 02, 2017
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