Question about Hitachi 53UDX10B 53" Rear Projection Television

1 Answer

Ballast So is their multiple ballast? One for each lamp?

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  • kreed13 Apr 24, 2008

    I didn't mean to Refuse yours and accept Jaime. Was reading them all and trying to figure things out when hers got clicked. Sorry.

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1 Answer

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  • Hitachi Master
  • 19,396 Answers

Please post the question in the premium thread, where the problem had been described in detail. The expert credited with accepted solution (Fixya) will answer.
here is the link:

http://www.fixya.com/support/t536130-hitachi_53udx10b_power_button_flashes

Posted on Apr 23, 2008

  • 1 more comment 
  • Ginko
    Ginko Apr 23, 2008

    you can also use Ask me button on Jaime, my solution has been already refused, it is fair enough that the credited expert keep troubleshooting the problem .

    Regards

  • Ginko
    Ginko Apr 25, 2008

    I donot want to push you in accepting my solution or refusing other expert help, but if you did not mean to refuse go back and refuse or accept right solution. I do not think it is fair that another expert get payed while I am being asked to work at this in his place.

    In your case you have to test boards inside.

    There is one main power board and 3 PWB boards for the lamps (R, G,B) (some seller call these ballast, but this can create a problem). You need to test first the main Power PWB, then if it is not that the test the 3 PWB on the lamps .
    Here is a general troubleshooting diagram for locating the problem with diags etc..


    Here is the diagram for testing the bpoards, start from PSU:



    Here is PSU schematic


    Here are RGBs.


    I Can waste 15 or 20 mins in uploading the whole service manual (worth $15) in regular pdf format, but at this point you really need to decide what expert you are asking to. I am sure other expert will have service manual the same.
    It is your choice.

    Regards

  • Ginko
    Ginko Apr 25, 2008

    One more thing , if you buy parts buy straight from hitachi , it is safer and less risk to buy wrong part. To find out were the problem is you need to test boards into TV, distance troubleshooting is just bit more than a startup point.

    Regards

×

6 Suggested Answers

  • 3 Answers

SOURCE: Panasonic PT-45lc problem

I took the rear bottom off of the set,lots of screws to take off.
On top of the bulb housing is a small yellowish thermal fuse.

I took mine completey out,jumped the black wire together,and bingo.set works perfectly.

Posted on Apr 16, 2008

Slinteriors
  • 8617 Answers

SOURCE: ballast replacement

Your set uses the Phillips UPH100W 1.3 100http://servicemanuals.vstore.ca/ 1amp bulb part number 6912V00006A which uses Ballast EUC 6913V0002A and the actual ballast isMB03CA part number 6871VSMB13F I would contact LG and give them these numbers. Is your ballast bad or is the BallastEUC bad? Let me know if I can help you further.

Posted on May 12, 2008

  • 98 Answers

SOURCE: Mitsubishi WD-52525 Lamp ballast

Contact Mitsubishi Parts themselves, 18005537278. They are very friendly.

Posted on May 15, 2008

  • 1 Answer

SOURCE: Need to buy a lamp & Ballast

http://electrified.com/Catalog/Items/?CampaignID=Froogle&ItemID=35508

Posted on Dec 20, 2008

axeist
  • 1 Answer

SOURCE: 52HM84 Toshiba DLP with apparent failed lamp (replaced ballast)

I found R3 on the original board to be open, along with reading an open on CR1, D5 and D6. All the other transistors and the transformer check out. The only thing I have to do now is find out the specs of the diodes. The replacement board also had CR1, D5 and D6 open (R3 was OK). There had been some threads on various locations where remanufactured boards had bad components (the transistors were changed but not some of the other components).

Posted on Jan 18, 2010

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

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Related Questions:

Tip

How To Know if it is the Lamp, or Ballast, that has failed.


Hi There. This is a very common issue with most rear projection Televisions. For example, you and your loved one are watching a great, and captivating movie, but suddenly, the screen go's blank. There is a "Lamp" signal in the right or left upper corner of the screen, and its flashing. Im sure at this time, you are very upset, and your loved one is, as well. don't worry about a thing. I will explain what is actually going on in this situation. In most situations, this will be a blown lamp, but in others, this will be a failed ballast.

Ok, first we will go over a few symptoms. The first will be the "lamp"

LAMP FAILURE

The lamp has only one symptom of failure. this will be a single pop, or a faint overheated filament smell. Normally you will here a single pop before the screen will go blank. The sound may continue, in some models.

BALLAST FAILURE

The ballast is a little tricky to diagnosis, audibly. There are three main symptoms of failure here.

1. The TV will usually give a "LAMP" failure code, even when the lamp has been replaced.

2. The TV will not make the normal click noise, or surge noise during start up. The absence of the start up surge noise is one of the quickest ways to determine whether the ballast or power board are bad, other than the lamp, itself.

3. The TV will make erratic, or rapid clicking noises during start up(5 clicks for every 3 secs). This is an indication of a weak ballast. It is unable to power up the lamp.

Now. Once you are faced with this issue, I would advise to simply test the ballast. Once exposed, you can visually inspect the component's as well. I will guide you through this with my procedure below.

The Lamp, and ballast are housed in close proximity of each other in most rear projection DLP sets. There is an access panel located on the bottom rear side of the unit. Most standard Phillip head screw drivers will due. Once the screws are removed from the rear access panel, the panel can be removed, and put aside. Once the panel if removed, the internals will be exposed. The Light engine platform is where the engine, and lamp housing will be mounted. The lamp/ballast housing is slightly to the right of the light engine. It will be black, in color. Ok, gently unscrew the light engine platform screws,and separate all harness connection to the engine,before pulling the platform away form the cabinet. Make sure the wires going to the digital board are removed from the light engine Assembly, and lamp/ballast housing as well. It is very important to make sure that all wires are disconnected from the light engine, and lamp housing before the engine platform is pulled away from the unit cabinet. Ok, once the platform is removed from the unit, simply pinch the plastic clips and pull to remove the vent housing. Now, once the vent housing is removed, the ballast will be exposed. Pull the smaller connector (ballast control cables), out carefully. Be sure that you don't damage the connector or the cables. Ok, now you release the lamp housing, and remove it. It is just to the side of the ballast housing. Once the lamp housing is removed, the ballast will have a few screws holding it on the engine platform. Simply remove the ballast mounting screws, and lift up the ballast housing of the platform.

NOTE_Normally, the ballast has Two connections to the digital board and power supply. The third connector goes to the lamp. Connector one powers the ballast, while connector two, gives operation instructions to the ballast.

Ok. Once the ballast housing is removed from the platform, place it on a separate table, and remove the ballast housing screws to expose the ballast circuit board and components. This is where you will need to access a multimeter. testing is needed to confirm ballast failure. Although there are visual indications that will confirm failure, i would suggest to test as well. Observe the ballast before proceeding. If oil is leaking from the ballast, stop here and remove the ballast. Leaking oil indicates that the ballast is damaged beyond any doubt as the internal seal has been ruptured by excessive heat. This is one of the visual indicators that will require you to go ahead and replace the ballast. If there are no oil leaks visible, move on to the testing procedure. Turn the Volt Ohmmeter to "ohms" and touch the ends of the two probes together. The meter should show continuity or a direct short. Touch the probes of the meter to one of the white wires and one of the colored, blue or yellow, or any wires that comes from the ballast. This should show a short or continuous circuit. If it does not, the ballast is bad and should be replaced.

This will conclude the procedure. This will prevent you from purchasing the wrong part, when the "LAMP", code appears.

Here are a few other models that my tips will cover. HLT4675S, HLT5075S, HLT5675S, HLT6756W, HLR5067W, HLR5656W, HLR6767W, HLT5076S, HLT5676S, HLT6176S

5e81566.jpg

on Dec 02, 2009 | Samsung DLP HL-P4663W 46" Rear Projection...

Tip

DLP -RPTV lamp/ballast Failures


All, One question or comment that I have never seen on the threads dealing with multiple failures of the DLP Lamp and ballast systems is what is the unit installed in? How far is the cabinet from the wall? The units I have looked at haved forced fan cooling to beep the lamp from self destructing. On the HLP4663W if the unit is placed against a wall the exhaust (heated) air port is blocked. Too close to the wall and the heated air is recirculated back into the cabinet directly over the ballast module. It is possible that the lamp/ballast assembly is running too hot. Not hot enough to trip the safety circuits but hot enough to degrade the life expectancy of the unit and drastically shorten the life of the lamp and/or ballast. IMHO if the cabinet is close to a radiator or within 6" of a wall thermal problems will result. Just my 2cents. Zenith451

on Jun 10, 2007 | Samsung DLP HL-P4663W 46" Rear Projection...

1 Answer

TV Model: Sony Wega KDF-55E2000 Projection lamp warning is on..and today a light red bar appeared at the top of the screen and light blue on the bottom..is this because the projection lamp needs to be...


Hello
There are two possibilities for this fault with Sony Projection tVs. The first is with the lamp itself. The second one is with the lamp ballast baord. Replace the lamp ballast board first. Because, it there is any internal winding short in the inverter transformar of the ballast board this type of fault can occur. you have to replace the ballast baord along with the new lamp anyway. Therefore, replace the ballast board first. If this help you, there is no need ot replace the lamp. Picture of the ballast included here for you to compare.

gopakumarg43_36.jpg If replacing the ballast dis not help you, change the lamp too. OK.

Aug 31, 2011 | Sony KP-57XBR10 57" Rear Projection...

1 Answer

I have a Sanyo plc-xt25 LCD Projector and when I plug my ac cord in, the fans turn on but no lamp comes on. I changed the lamp and still no picture. What do I do?


Every projector lamp is equipped with ballast. The problem area is ballast. Either the ballast is not getting DC supply or the lamp turn ON signal from the projector main board or the ballast is faulty. Remove the lamp. Connect the projector to the mains supply. Check the voltage at the lamp connector inside the projector without turning it ON. It should be around 65 volts A/C. (Warning: Multimeter will get damaged if the projector power is turned ON due to generation of high voltage) If you find this 65 volts then it confirms that it has DC supply & the ballast is functioning. The ballast receives the the turn ON signal from microcontroller through opto-coupler on the ballast. The ballast opto-coupler can be checked by providing external 5V DC supply between pin 3 (+ve) & 4 (-ve) in turn switches ON the lamp. If this works then there is no problem with your lamp & ballast. The problem lies with the main board. If this does not solve your problem then give me the feedback.

Aug 04, 2011 | Sanyo PLC-XT25 LCD Projector

1 Answer

JVC DLP MOD#HD55G466 what is the voltage from power supply to ballast and into the lamp.I have no voltage to the lamp could it be ballast?


Hi,
Ballast board gets voltage from power supply connector CN90BL and volts readings are as follows:
Pin-1 = 380V DC
Pin-2 = Ground
Pin-3 = 15V DC
and output of ballast board would be 12,000 volts AC that goes to lamp to generate spark in its electrodes to produce high bright light.

If you get volts on input of ballast board but still lamp does not fire up then ballast board is not working.
Ballast board part number is QAL0765-001 and available with tv-part.com for $125
Hope these info will help you.
Thanks.

Nov 16, 2010 | Televison & Video

1 Answer

HOW TO CHECK BALLAST LAMP FOR 62HM95


Ballast Board Powers Lamp, the 2 plugs on Lamp connect into Ballast
board just follow the wires from where lamp plugs into.
Does Ballast have a ark coming from a componet on board and does the main capacitor Look Vented or puffed up on top?
Remove Lamp turn TV on see if Ballast has a ark coming from a Big Whit/blue writing on it spark cap?

Feb 19, 2010 | Toshiba 62HM95 62" DLP HDTV

1 Answer

Where Is the Ballast.


The ballast is on the other side of the lamp compartment. the lamp plugs into the two short leads that are attached to the ballast. Its a small circuit board.

Jun 13, 2008 | Zenith D52WLCD 52" Rear Projection...

1 Answer

Hd50lpw175x7


Ballast Verification Process
1. Short out door switch (SP001)
2. Apply AC power and wait till DM module boots
3. Press power switch and observe spark gap on ballast
4. If spark gap arcs, suspect Lamp. If color wheel starts but ballast won’t strike
lamp, go to next step.
5. Measure BP252 on AC IN CBA for +300Vdc. If missing check door switch, cable
from AC IN CBA to switch and AC IN PCB. If correct go to next step.
6. Monitor pin 2 of BT251 for Ballast ON command from Light Engine. If present
suspect Ballast. If missing suspect Light Engine. Pin 5 of BT251 starts at 3.3V
after power switch is pressed and drops to .18V when the Light Engine sends the
start command. No change on pin 5 indicates Light Engine is suspect, change
on pin 5 with no ballast start, ballast is suspect.

Note: Lamp may arc but not start. Pin 5 of BT251 is "LAMP LIT" and goes to 1.48V
when lamp is lit. If ballast strikes lamp but lamp won’t stay lit, suspect Lamp.

Jun 09, 2008 | RCA HDLP50W151 50" Rear Projection HDTV

1 Answer

Ballast replacement


Your set uses the Phillips UPH100W 1.3 100http://servicemanuals.vstore.ca/ 1amp bulb part number 6912V00006A which uses Ballast EUC 6913V0002A and the actual ballast isMB03CA part number 6871VSMB13F I would contact LG and give them these numbers. Is your ballast bad or is the BallastEUC bad? Let me know if I can help you further.

May 12, 2008 | LG RU-60SZ30 60" Rear Projection...

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