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Hitachi 50UX58B
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sd
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PostPosted: Thu Aug 11, 2005 8:31 pm    Post subject: Hitachi 50UX58B Reply with quote

MY WAS WATCHING HITACHI MODEL 50UX58B AND IT WENT DEAD.
I CALLED HITACHI TV CO. THEY GAVE ME THEIR REPAIR SERVICE PHONE NUMBER. THEY CAME AND TOLD ME THAT FUSES ARE BAD AND NEED A NEW REGULATOR AND GAVE ME ROUGH ESTIMATE OF $ 250. HE WENT TO SHOP AND FAXED ME ESTIMATE OF $ 428.83. HE WROTE "IN DESCRIPTION OF WORK TO BE PERFORMED " NEEDS POWER SUPPLY REPAIRED. I ASKED HIM TO GIVE ME BETTER DETAIL SO I CAN COMPARE APPLE TO APPLE. HE SENT ME ANOTHER ESTIMATE AND TOLD ME THAT THEY HAD EXCATLY THE SAME TV NEEDED NEW POWER DEF PWB AND GAVE ME ESTIMATE OF $ 805.92 HOW CAN YOU TRUST THIS TECHNICIAN WHAT DO i DO ?

I ORDER THE BOOK AND FOUND OUT ( D940 B-120 SERVICE LED WAS OUT ANDD946 TV9V WOULD COME LITTLE BIT LATER.

i DO NOT KONW HOW TO PROCEED FROM HERE. CAN ANY BODY HELP ?
.
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mark



Joined: 20 Jan 2005
Posts: 43

PostPosted: Thu Aug 18, 2005 10:22 pm    Post subject: Reply with quote

is there a red led glowing, and are the green leds out?
if you have red and green leds which of the green ones is out?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Fri Aug 19, 2005 6:37 pm    Post subject: Reply with quote

Dead - Replace c707 and e994
power light blinking fuse open Replace C707 (1000pF/2kv)
No power, power supply geen led light on then shuts off E994 protecter 2Amp open. C707 SHORT
No power Replaced open protector E994 and blown C707

A place to start. Sounds like c707 is shorted or dry.
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Hook 'Em In Texas
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PostPosted: Thu Sep 29, 2005 11:51 pm    Post subject: C707 & E994 Reply with quote

After reading the posts on this site, I felt obligated to post. I ordered the service manual for my 50UX58B TV, found the C707 cap with a hole in it and smoke on the cap next to C707. I replaced C707 first and had the same LED power up symptoms as other posts (no B+ LED and flashing red service LED). Next I check the E994 and it was open. Replace it and the TV is operational again. I did both component replacement without removing the main power supply board. Just clipped the leads and soldered onto the exiting posts. Thanks for your posts. Saved me about $2,000. Gonna order a High Definition Tuner for this TV this week because I just found out that it handles 1080i input. Ahhhh!!!! Should have read the users manual a few years ago!
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guest
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PostPosted: Wed Nov 09, 2005 10:48 pm    Post subject: c707 and e994 fuses Reply with quote

I have the same problem with my tv. I have been looking for these 2 fuses. can anyone please let me know where they are located? If i can change these myself, I'd love to try.
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nellinoggins
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PostPosted: Sat Dec 03, 2005 10:14 am    Post subject: 1080i ?? Reply with quote

Can the 50ux58B really handle 1080i? I know it says it has 1000 pixels vertical, but I cant get it to sync to any "i" modes?

Thanks
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LIU
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PostPosted: Wed Aug 02, 2006 1:04 pm    Post subject: STK 392-110 Reply with quote

MY HITACHI 50UX58B DEAD SECOND TIMES
First tims is 2 years ago ,C707 was broken .this time is 1 month ago ,I fine STK392-110 PIN 5 +18V ,PIN 4 only -4V and red LED flashing.Because I have not service manual , I do not know how to fix my TV, Can any body help?
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PostPosted: Fri Sep 07, 2007 11:08 pm    Post subject: Help Reply with quote

where did you all find the parts at?
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[email protected]
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PostPosted: Mon Jul 14, 2008 5:03 pm    Post subject: Dead Hitachi Reply with quote

Same problem, and same simple fix. TV works great, as before. The shipping cost more than the parts!

Thanks for the posts.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon Jul 14, 2008 10:17 pm    Post subject: Re: Dead Hitachi Reply with quote

[email protected] wrote:
Same problem, and same simple fix. TV works great, as before. The shipping cost more than the parts!

Thanks for the posts.
Very Happy
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