CE Tech Tips — June 2018

**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, 57UWX20B
Reason for Service: Has HV, but no sound or video.
Solution: Found Q445 leaky and replaced.

LG Plasma, 42PJ550-UD
Reason for Service: Set comes on, then turns right back off.
Solution: Look for bad solder on the ZSUS board.  Check L1 and tighten all screws.

RCA TV,  ATC010
Reason for Service: Shutdown, might be intermittent.
Solution: Found an open R835, 120k ohm.

Samsung LCD, LN52A750R1FXZA
Reason for Service:  Dead set
Solution:  Replacing main fuse and Q1815 and 16 fixed the set.   P11NK50ZFP

Samsung HLS5679W
Reason for Service:  No sound
Solution: Replaced several caps.  CM854, CS857, CM860,  2200uF/25V and  C858, C859,  47uF/50V

Sony TV, KDL22L5000
Reason for Service: No remote operation.  The remote itself tests okay.
Solution: Found two shorted caps off pin 3 of the receiver.  C9113 & C9114

Toshiba TV, 27D46
Reason for Service: Intermittent Vert Sweep
Solution:  Replacing D402 fixed the set.

Vizio TV, VO32LFHDTV10A
Reason for Service: Set has no picture but sound okay.
Solution: We found no 12V at the T-Con.  U37 regulator on main bd was bad.  Chip marked 4953GM.

Zenith TV, PV4663MK, Mod 9-1302
Reason for Service:  No picture or raster, sound okay.
Solution:  Had to replace the following:  CRX3412, (NTE577), Horiz Out, QX3200, (2SD2539) and the Fly.  95-4134-29.