Wd-65735 low lamp voltage issue.

Caveat: I am not a tech, I just read through the Mitsubishi service manual, and have worked on different model TV that I have owned (older model of this one) I am a little unclear on the second set of lights but I think the combination *may* indicate that the lamp fan is not starting (there are two fans though), if the blinking red is the status light. It is possible the connector for that got jostled during the trip, something fell into it from being on the side (wire or loose something) and is blocking it from spinning now, or a module unseated a bit,and is loose, or the lamp is no longer seated correctly (though the lamp light does not appear to be on) or none of these. :) These are just guesses.
Be careful if you open it up, due to potential for shock. Wear gloves, and power it down first (then unplug). Reseat any fan connectors.

Google: I used "wd-65735 status lights" to find a service pdf , it's for V39 chassis (several models)

From page 24 of Service Manual :

3. Error Code Operational Check Note: The TV must be in "Shut Down" and not have been switched Off, to perform the Error Code Opera- tional Check. When the TV is switched Off, the code automatically resets to "12" No Error.
Pressing the front panel "INPUT" and "MENU" buttons at the same time, and holding for 5 seconds, activates the Error Code Mode. The "TIMER LED" flashes denoting a two digit Error Code, or indicating no problem has occurred since the last Initialization.
Note: The front panel buttons must be used, NOT those on the Remote Control.

• ThenumberofflashesindicatesthevalueoftheMSD(tensdigit)oftheErrorCode.
• Theflashingthenpausesforapproximately1/2second.
• TheLEDthenflashesindicatingthevalueoftheLSD(onesdigit)oftheErrorCode.
• The Error Code is repeated a total of 5 times. Example: If the Error Code is "23", the LED will flash two times, pause, and then flash three times.

Page 24
MODELS: WD-60735 / WD-60C8 / WD-65735 / WD-65736 / WD-65835 / WD-65C8 / WD-73735 / WD-73736 / WD-73835 / WD-73C8
4. Error Codes
The Error Code designations indicating malfunction, or no malfunction, are listed below:
ERROR CODES
Code
Description
Most Likely Cause
12
No Error found
17
Communication loss, TV Micro - Engine (3.3V-ENG-SDA & SCL)
Engine Failure
18
Engine will not accept data (ASIC-READY signal from Engine is not detected).
Loss of 12V from PWB-POWER (Loose PE or PE2 connector); Bad Color Wheel (Loose J6 or J7 connector); Engine Failure
32
Lamp cover is open.
Lamp Cover Switch; Loose CD connector
34
Lamp turns Off while the TV is playing. Lamp failure
(Lamp Enable signal from engine is lost)
Lamp Cartridge Failure
36
Exhaust Fan failed.
Loose J4 connector
37
Engine (DMD) fan failed.
Loose J5 connector
38
Lamp temperature abnormally high.
Poor Air Circulation; Loose J3 connector
39
DMD temperature abnormally high.
Poor Air Circulation
41
Standby Supply Short is detected. (5VS or 3.3VS)
PWB-MAIN Failure
42
Sirocco fan failed (Lamp fan).
Loose J8 connector
44
Check for disconnected DVI cable between PWB-DM and Engine. (Engine pulls DVI pin 14 Low)
DVI Cable unplugged
48
PON-SHORT 3.3V switched supply short
PWB-MAIN Failure
57
Ballast communication problem (ballast to chassis)
Loss of 340V from PWB-POWER (PL or CJ1 connector); Loose FB or CJ3 connector; Ballast Failure
61
No LAMP-EN output from the engine to the ballast
Bad Color Wheel (Loose J6 or J7 connector); Engine Failure
66
Lamp did not turn on at P-ON sequence
(No Lamp inserted)
(Disconnected cable between ballast and lamp) (Lamp-Enable goes to DM but not to Ballast)
Loose CJ4 connector;
No Lamp Inserted;
HV connection or lead wire to lamp; Lamp Cartridge Failure
Code 34(1) - Lamp Enable is generated to activate the Lamp
Code 57(2) - Lamp Enable is generated during P-ON sequence, but no Lamplit signal is received from the Ballast. Code61(3) -NoLampEnableisreceivedattheDMandBallast.
Code 66 (4) - Lamp enable is received at the DM but not at the Ballast.
4. Error Code Log
The Error Code Log - may be helpful to retrieve the code for an error the occurred in the past. To access the Error Code Log: Press <MENU> <3-5-6-4>

bad lamp

Once the set shuts down, wait for the unit to stop blinking. Once it stops hold in the input and menu buttons for 5 seconds. The TV will then give you an error code. A 6-1 or a 1-8 error code would indicate a bad Color wheel. Which I think is the problem you have.

Hi W Bloom,


First of all, thank you for contacting Fixya.com regarding your TV problem.


My first advice is to do system reset by pressing the "Power" button key at the front panel and hold it for 10 secs.


Please check also if you can access the "Error Code Log" by pressing the "Menu" "3" "5" "6" "4" in sequence before the unit gone to shutdown.


You've mentioned that the bulb has been replaced just last Sept and now it won't come on. The lamp can't be test using the multimeter but you can make a visual inspection to determine its condition. Most of the faulty lamp has an obvious burnt mark. There's a possibility that the symptoms is caused by busted lamp but in your case, if it is a genuine lamp replacement, then high chance that the fault is not the bulb.


You need to check the ballast board but not the high voltage output of it feeding the lamp. No voltage coming out from the power supply board to the ballast board can produced the same symptoms. You have to check the this voltage at connector CJ1, you must get 325V to 340V. Check also the lamp enable at connector CJ3(pin 4) you must get a low voltage upon turning on the set to confirmed that the mainboard giving a signal.


If there's no voltage at CJ1, then the fault is on the power supply board.

If the readings are normal, and still the ballast won't ignite (you can hear a slight snap sound when the ballast board trying to ignite), then you have to replaced it.


Click the link below to order online.


http://bigtvsale.blogge.rs/2011/05/31/discount-replacement-mitsubishi-oem-pwb-ballast-938p178010/


http://www.shopjimmy.com/mitsubishi-938p178010-lamp-ballast.htm


Please let me know if you need further assistance.


Good luck and take care!


Kind Regards,


Mjsazon

You need to make sure all Fans are running and to Look on power supply board for Bad Capacitors,they will be vented,swollen or puffed up on Top .
Ballast Board is what powers Lamp on it could be Bad
Google to this website and type in your model#
Encompass Parts Distribution 1-800-638-3328

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Good luck..

My concern is that the new lamp may be having an issue and not able to hold the high voltage.
If the old lamp was working, I would try this old lamp again.
If this issue was with the old lamp also. Then there is something else wrong either in the power supply or the lamp ballast where it isn't able to continue to put out the high voltage.

More than likely a lamp issue!

A/V Media Tech Guy.

you cant - unless you have another tv to test it in. May be a ballast or the cooling fan for the lamp is not working.

What it sound's like is that the lamp ballast is the problem. Buzzing sounds like when the power is first brought to the ballast it has to ramp up the voltage to get the lamp to light, then the voltage drops back down when the lamp is lit. Sounds like the lamp ballast isn't ramping up the voltage the way it should. May have to replace it. A good service shop would be able to do this for you.
Blessings,
A/V Media Guy

Good Day, monkbuist;

TRY THIS:

1. (Lamp may light and go out) suspect bad lamp part # 915P020010 2. Check for 12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check for an open F9A09 on the Power PCB, if it is open replace F9A09 part # 283P127060 and the Light Engine part # 939P977010 3. (Lamp may light and go out) Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if low or missing check C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB (part # 930B921002) 4. At power on the lamp turns on and off three times and then the unit shuts down with a red lamp LED (lamp error). Replace the Light Engine part # 939P977010 5. Lamp enable line at J14 pin 6 does not switch to 5 volts after turn on, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010 6. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on and does go to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Lamp Power PCB (ballast) part # 939P978010 7. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010. Good Luck, big IRISH.