CE Tech Tips — December 2018wpadmin
Due to the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.
Panasonic TV, TCL42E3
Reason for Service: Won’t come on, one blink error code
Solution: LEDs were coming on, but only for a second. Replaced LED driver board.
Toshiba TV, 50H72
Reason for Service: Dead & F470 blown
Solution: Replacing C884 and F470 fixed the set.
LG TV, 37LP1DUA
Reason for Service: Immediate shutdown after powering on
Solution: IC851 in the power supply was bad. SM #L6910.
Audiovox TV VE705, 7” LCD
Reason for Service: Dead set, no standby
Solution: Found bad cap in power supply, 1000uF/25V.
Hitachi TV, 60SDX88B
Reason for Service: Black rectangular bar floating up screen on all inputs; audio low and set may shut down.
Solution: Found and replaced open cap, CN06, 10uF/50V.
Westinghouse TV, TX-47F430S
Reason for Service: Set won’t turn on
Solution: Found bad capacitor on main board. TC51, 470uF/16V
Samsung TV, PN50A550
Reason for Service: Relays click when set plugged in. After few seconds, power shuts off then back on.
Solution: Replaced C102, 47uF/6.3V. If still not working, replace DC to DC converter, MP2363DN.
Zenith TV, 9-1998 module
Reason for Service: There was vertical foldover when brightness and contrast turned up.
Solution: Found and replaced leaky cap, CX3233, 47uF/160V