My Hitachi 51f510 started

Aug 20, 2009

- where is 1P01 located exactly? Thanks
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It is IP01 (ip01) and located in power supply board, just follow AC cord of TV and that will take you in power supply board/ section in TV.

Below is an exploded view from repair manual that might help you.
Thanks.

Aug 20, 2009

- I found 1P01 and loosened the circuit board and looked under 1P01 and there are two terminals in one of the rows that have no solder would this be the problem or are two left open purposely? Thanks Mw in NM
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Yes, pin-13 and pin-17 are not connected by its design so it is just normal.
These 2 unconnected pins are not cause of problem. Replace the IC and be careful while replacing/ soldering IC, please do not make bridge solder point between IC pins.

Aug 20, 2009

- An image of schematic of ip01 and pins are marked that are not connected ( NC )

Aug 20, 2009

- Guess you didn't get my last comment. Have found 1p01 and loosened cb looked underneath to find two terminals on one side of 1P01 not to be soldered could this be the problem or are two left normally open?
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I got your previous comment about 2 pins of IC ip01 that are not soldered with PCB,
Yes, these pins are not soldered in circuit and left open (not connected) purposely. It is not cause or reason of problem in TV.
I also posted schematic part of that IC as reference with pin numbers marked for your information.
Replace that IC in TV and hope TV will power up normally as it was before.
Thanks.

Aug 21, 2009

- Thanks : now it appears that I need to get that cb out and onto a table in order to solder carefully . I see a bunch of molex conectors that can be disconnected but wanted to make sure the 3 distributor cap looking wires can be pulled out of what to me looks like a coil. Can I Slip the rubber boots up and disconnect the wires without hurting anything?

MW in NM
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Yes, push these wires inward, turn it 45 degree and pull out. Do that gently otherwise wire end can be broken off.
Thanks.

Aug 21, 2009

- Hope below image taken from service manual will help to remove these wires.

Aug 22, 2009

- How do I go about getting the service/repair manual? MW inNM Thanks
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Click HERE and download service manual, please downlaod all 7 files and use Winrar to unzip that will provide you pdf file of service manual.
Thanks.

Sep 01, 2009

- That means there is some thing more that activating protection circuit to shut down TV.
Did you got copy of service manual from said website?
Thanks.

Oct 21, 2009

- OK,
Component level repair requires fair knowledge of electronics and good experience so I would suggest to replace power supply board to fix this TV..

JT24485 POWER DEFLECTION PWB

Available in Part Store and may be other sites offer that board on less price if searched on internet.
Thanks.

Oct 21, 2009

- Listen I have paid 2 months of service, spent money on the part you advised spent on downloading the manual which apparently according to your advice I may not be able to use, I thought you were the experience I would need to accomplish this repair after all you are the Guru.. Now you suggest that I spend an additional $300. Something seems wrong with this picture!
Please reply Webb
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My sincere advice took in wrong way.
As I said before, component level repair needs high class electronics knowledge, experience or expertise.
I am able to fix this TV in limited time if it is in front of me. Little experienced person can cause more damage on component level repair. I'm far away from TV and my advise was in best interest of you.
Service manual copy was totally free.
Thanks.