Question about Panasonic SC-HT1500 System

3 Answers

Unit not powering on

I was told that I needed the system control board to be replaced . DOe anyone have any idea where I can get this item ,including the part number etc.
Ricardo

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Check the link below. I already rresponded to this problem before. You need some "soldering" to perfom. I already have the same problem twice, those slashes and "not powering" unit are typical signs for burnt out electrolytic capacitors.

Here is the link to read for you with detailed information and link with pictures. You can order parts from Panasonic website, and some guy in TV/electronic repair shop can do it for you for couple dollars in 15 minutes (if you do not want to learn soldering.)

http://www.fixya.com/support/t281555-power_up

Posted on Jun 03, 2009

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See the other notes on this problem for bad caps C1260, C1261, and C1262 - most likely problem.

T Wiz

Posted on Mar 25, 2008

  • Techniwizard Apr 05, 2008

    OK, opened her up and the already noted 2 caps 680uf @ 10V, C1260 and C1261 showed signs of bulging out of their tops.
    C1262 is a 1000uf @ 10V on the same line after a decoupling coil.

    I replaced all 3 with 1000uf @ 16V units, powered up and all is well. The board was removed for more than 24 hours but I was shocked to find most of the TV Guide listings and my Scheduled Recordings still in memory along with all of the video on the HDD intact, so go figure.

    Also as noted, the DVD drive and front panel do not need to be removed as in the "Vass" procedure. The multi-pin jumpers from the mian board to the PS board can be disconnected on the PS side by lifting on "ears" of the upper part of the connectors with a fingernail. Do this slowly to not misalign the pins. This allows you to work on the caps with the board out of the unit on a workbench where you can see what you are doing.

    Keep track of the different screws as you remove them, some are machine type while others are self-tapping and can be easily mixed up.

    Thanks to those that first explored this problem. Reapirs are always easier when the diagnosis is already made.

    T Wiz

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Replacing the control board seems a bit drastic. Usually there are simple component failures that can cause this. I have seen bad regulators, bad standby power supply circuits, and stuck buttons cause this. It may also be the microprocessor chip. Any of these problems can usually be fixed rather easily for less than $120 for parts and labor.
Dan

Posted on Mar 18, 2008

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Here is the link to read for you:

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Hi,

Based on your description, we can limit the fault to the power supply board and in particular to possibly 3~4 components:
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