Question about Samsung SyncMaster 713N 17" LCD Monitor

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What is the reason to blow TOP246FN IC - Samsung SyncMaster 713N 17" LCD Monitor

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You still have shorted circuits, transformers, loads.
Service manual:

IC spec:

You should build one of this box so you will not keep blowing new parts, use 75watt. If the bulb lights up fast with full brightness, then you still have short circuts, it shoudl be lit dimmly.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors pictures:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.

Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Posted on Mar 25, 2011


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Posted on Jan 02, 2017


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Hi dionsparky,
If your replacement fuse has an exact current ratings and yet immediately blew after an installation, this is an indication of shorted parts in the supply voltage line. Most likely it was caused by shorted output IC which is mounted in the heatsink. If your handy with electronics and have some necessary tools, pull-out this IC by deslodering it to the board and try the unit without this parts. If the fuse does not blew and finally the unit power up, you must replaced this IC and your unit will back to normal again.
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Whatever value fuses is put in will blow! The higher the rating however could cause something to get hot thus causing a fire, before they do go!
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Pioneer DJM 600 mixer keeps blowing ic 557 fuse on power supply board

I repair DJM 600 for many years. :) The reason for the burning of IC 557 (+8V H 600mA ) is invalid amplifier for headphones!!!
Replace IC 310 and IC 312 (in big mainboard), and replace
IC 557with original fuse 600mA
!!!!!CHECK YOUR HEADPHONES!!!!!! This is the cause burning amps.!!!!!

DJ Iskren

Oct 03, 2009 | Pioneer DJM-600 Silver Professional DJ...

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