CE Professional Tech Tip Sharing
October 2016
**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, 60SX2K
Reason for Service: Loss of audio in the surround mode only.
Solution: Replaced defective three way surround board.
Insignia TV, NS-LCD32-09
Reason for Service: Dead
Solution: There was no 12v or 24v coming from the power supply. Q952 was shorted. K4097
LG TV, 50PG20
Reason for Service: Shuts down, or starts to prime then shuts down.
Solution: Check for bad solder on the power supply board or bad Q801 and Q802. If these are okay, replace the power supply. #EAY41360901
Philips TV, 50PFP5332
Reason for Service: No picture, but set has audio.
Solution: Replaced y-main and C4712 and fuse on x-main.
Philips TV, 52PFL5704D/F7
Reason for Service: No video, but has sound and backlight.
Solution: Try this before replacing boards: take out the board, remove the cooling pads from the ICs, soak and scrub board with acetone, put the cooling pads back on and try the set.
RCA TV, F36650, ATC113
Reason for Service: Vertical shrinks after the set warms up.
Solution: Replacing the eprom IR02 fixed the set. #258098
Samsung TV, UN55D7000LFXZA
Reason for Service: When you plug set in, it clicks repeatedly.
Solution: Replacing the power board fixed the set. BN44-00428A
Samsung TV, HLP6163WX (DLP Set)
Reason for Service: Picture has thin black lines top to bottom.
Solution: Replacing the DMD board fixed the set.
Sanyo TV, DP42740 plasma
Reason for Service: Set clicks on, then right back off.
Solution: 200V source was only 130V. Replace the Logic control module.
Sony TV, KDL46NX700
Reason for Service: Dead, relay clicks, gives a two blink code.
Solution: Replaced the following in the power supply: Q6101 & Q6102, used NTE2903 and fusible resistor R6536 open. 0.47ohm/one half W.
Vizio TV, GV47LFHDTV10A
Reason for Service: Backlight okay, but no video
Solution: Found open fuse, F3, 1.5A SM on main board. Also check all the 1117 regulators.
Comments (2)
I own 2007 Samsung LCD LN46A550P3FXZA (Serial ALXK3CHQ801321D | Version CN09). Until few months ago the TV displayed Green and Pink vertical lines along with with a deep sound. Recently it is taking a very long time to show the screen and sometimes need to restart couple of times. I am not sure which part of the product must be replaced. OR is it wise to buy a new one.
Hi, Shravan, our apologies, but we are unable to provide technical advice. We recommend you contact a professional servicer; here is a helpful directory you could search for a provider. Best of luck, and again we’re so sorry we cannot help you with diagnosis.