Question about Projection Televisions
SOURCE: power supply
you are so lost... a short in anything after the power supply will shut down the horizontal driver signal. first check to see if horizontal output transitor is shorted. If not it should have about 110 volts dc on it. if not go back to Power suppy ...many things start here...check to see if you micros got power a 5v heatseeked regulater is common bad. also the startup circuits can be tricky...in the power suppy. I look for a kit online for power supplies ...they give you about every that fails. or you can start buying boards...best bet it is take to a professonal for you my freind havent a clue. CrazyLarry
Posted on Jun 27, 2007
High failure parts = Flyback.....# 239111 and HO transistor =
237470 ....DO NOT USE cheap generic.................T.
replace both at same time......................T.
Posted on Dec 21, 2007
SOURCE: JVC AV48WP74 Service mode
Press SLEEP TIMER and, while the indication of (SLEEP TIMER 0 MIN) is being displayed.
press DISPLAY and VIDEO STATUS on the RC simultaneously. Exit: EXIT.
Posted on Jul 10, 2009
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