CE Tech Tips — November 2017

**NOTICE**

Due the danger and complexity of electronics repair, the following shared technical tips are intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.

Hitachi TV, 60SDX88B
Reason for Service: Shuts down.
Solution:  Q777, Q657 and EP98

Magnavox TV, 37MF321D
Reason for Service:  Dead, light flashing.
Solution:  Found two swollen caps in power supply, replacing them restored normal operation.  2081,  1500uF/35V and 2074, 2200uF/25V.

Panasonic TV, PT50LC13
Reason for Service:  Need to reset lamp timer after changing the lamp.
Solution: Turn on TV, and simultaneously press and hold volume down on front of set and the PIP/VTR on the remote.  Hold for 10 seconds, then OSD will say Lamp Time Reset to 0.

Polaroid TV, TLX03210B
Reason for Service:  Set tries to start, then red LED blinks continually.
Solution: Found two bad 10uF/450V in the power supply.  Replacing fixed the set.

Sony TV, NSX-46GT1
Reason for Service:  The set turns on with the Sony picture, then freezes.  Goes no further.
Solution:  Replaced the M board and upgraded the software.  Part # A-1787-298-A

Toshiba TV,  52HM84
Reason for Service:  The lamp won’t light.
Solution:  Check ballast components:  1k resistors, two rectifiers and C6,  0.1uF/400V metal film poly cap. Ballast needs 350V and a 5V enable signal to work.

Vizio LCD TV E550VL
Reason for Service:  Shuts off intermittently.
Solution: Replacing the main board fixed the set.

Zenith TV, 9-1302 module
Reason for Service: No video and intermittent raster.
Solution:  Look for bad solder on fly pins; also check for bad solder on top and bottom pins of daughter board.