TV Repair Tips


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Size Model Chassis Symptom Problem Description Fix
36AV-36850 PowerRelay clicks, but wont StartC926 (1000uF/35V)
36AV36980 PowerDeadSTRF6626, PC901, Q912, C926, D905
36AV36F702 PowerDead, Front LED blinkingFlyback transformer T502 (#QCH0110-001)
37LT37E488 Videono HDMI videoReset the TV in service mode. Set the sleep timer to 0 minutes, while 0 is displayed on the screen, press the V status key and the Display key at the same time. In service mode, select Diagnosis then Self Check Diagnosis. Unplug for 30 seconds and plug back in.
40LT40FN97 VideoHDMI inputs only show snowDigital board (SF10D185A-M2
42LT42X579 PowerBlack Screen, Relay clicks, after 15 sec LED blinksUnplug, plug back in and hold menu and volume down for 10 sec. While holding those buttons, press power and let go of all 3 buttons. Press power for TV to come on.
56HD56C647 Videopic randomly blanks outremove and reseat LVDS connector on the OP/DD assembly (CN301)
56HD56G756 VideoHDMI input flashingreset digital input in service mode
56HD56G756 VideoHDMI input flashingEnter the service mode: Push sleep timer key then set to zero minutes, then push video status and display buttons simultaneously. Service mode screen, push #2. Sleep timer changes pages, while on page 2 push power button and this is the reset/clear for the digital input.
61HD61Z786 PowerDead, relays click at pluginIC1661 (#TDA8925ST/N1, Audio Output IC)
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: Don't kill yourself.  If you do, don't blame us...  We totally warned you.  These tips are intended for qualified service technicians that know what they're doing.  Unqualified persons should never service their own equipment.  Televisions contain very high voltage that could kill you.