Question about Hitachi 42HDS69 42 in. Plasma Television

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Intermitten problem with hitachi plasma on power up

I've got a hitachi mod# 42hds69 that will not power up. when the main power supply is turned on, i can hear a second ''relay'' make a snapping noise, and the l.e.d. lights on the bottom right hand board go out! why wont my TV work? is it the main board #MPF7428?

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Well aparently all you do is fish for customers to buy into your sevice!
I DIDNT GET ANY HELP FROM YOU GUYS, TAKE YOUR "FREE" TECH SUPPORT AND SHOVE IT UP YOUR ***!!!!!!!

Posted on Nov 13, 2009

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Posted on Jan 02, 2017

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1 Answer

Hitachi plasma popping a fuse


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and precious time. This is true, especially to Plasma TVs.

Aug 14, 2014 | Hitachi 42HDS69 42 in. Plasma Television

1 Answer

My Hitachi 42 inch 42HDs69 will not power on sometime. The stand by light is on but will not power on at times. When it finally does turn on it fine. But you have to keep pushing the power button. Also the...


It may have dying power supply due to such thing as bad caps with domed tops, or bad main board.
You should inspect these boards: power supply, Z-sustain, Y-sustain for nay sign of over heating, bad caps, etc.
See pictures of the boards here; http://www.shopjimmy.com/catalogsearch/result/?q=Hitachi+42HDS69

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

Jan 27, 2011 | Hitachi 42HDS69 42 in. Plasma Television

1 Answer

My standby power light is on. TV won't turn on. What should i do?


Replace your power supply. 80% of the time when a plasma doe not turn on is the Power Supply.

Nov 21, 2010 | Hitachi 42HDS69 42 in. Plasma Television

1 Answer

I have no power to my Hitachi TV. It is plugged


try turning off main switch and unplug set then replug in wait 30 sec turn on main power and repeat then try if it works great if not power supply bad. i also suggest a ups universal power supply newer tvs sensitive to surges and brownouts also never turn tv off n on in short period of time will cause surge that trips protection circuit

Dec 29, 2009 | Hitachi 42HDS69 42 in. Plasma Television

2 Answers

Sound Problems with Hitachi 42HDS69


Probably the main board, audio processer blown. about 300.00 to repair. A service tech told me this and the repair worked.

Feb 17, 2009 | Hitachi 42HDS69 42 in. Plasma Television

2 Answers

Picture went out when I changed the cable channel


Check this forum thread:

http://www.avsforum.com/avs-vb/showthread.php?t=778593

Jan 27, 2009 | Hitachi 42HDS69 42 in. Plasma Television

2 Answers

Hitachi 42HDS69 42 in. Plasma... Problem


Describe the past - How did it fail? One day or acting up for a while? Could be a weak power supply - a bad capacitor on a power supply too. Look for popped up capacitor top inside.

Apr 29, 2008 | Hitachi 42HDS69 42 in. Plasma Television

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