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I need the electrical diagrams to repair my rear projector model 55PW9383/17F Chassis DPTV340. Failure: no power on

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You prob do not need a diagram to figure out this problem. If it powers on, then powers right back off again, then you could have a serious horizontal transistor short. If the TV is just dead period, you can try to replace all the large capacitors around the power supply area. A bulging top or leaking around the bottom are nice features to identify problem caps.

Posted on Nov 14, 2008

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I have a big magnavox tv that all of a sudden the picture went out with only sound. I tried everything possible from changing cables and calling my cable company to see if the problem was there but no


Your flyback has failed most likely...bad new is they are nearly impossible to find, This is a known issue on most of the models below. The site Tv Repair Kits can sometimes get replacements - but its not often.

This repair kit is known to work on Magnavox TV sets with the following Chassis/Model Numbers.

DPTV305 , DPTV305F , DPTV310 , DPTV315 , DPTV330 , DPTV330F , DPTV335 , DPTV340 , DPTV345, MAG01

Model Numbers

( 43PP9202/17 43PP920217 43PP9202/17F 43PP9202/84 43PP920217F 43PP920284 43PP920201 43PP920284F 46PP9302/17 46PP930217 46PP930201 46PP930217F 46PP930284 46PP930284F 46PP9302H17 50PP9202/01 50PP9202/17 50PP9202/84 50PP9202/84F 50PP920201 50PP920217 50PP920284 50PP920284F 50PP920217F 51MP392H/17 51MP3964H/17 51PP9303H/17 51PP9363H17 51PW9303/17F 51PW936317F 55PP9352/17 50PP920217F 51MP392H17 51MP3964H17 51PP9303H17 51PP9363H17 51PW930317F 55PP935217 55PP935201 55PP9363H17 55PP9502/84 55PP950284 55PP950201 55PP950217 55PW936317F 55PW9383/17F 55RW9515/35 60PP9202/17 55PW938317F 55RW951535 60PP920217 60PP920201 60PP920217F 60PP9352/17 60PP935217 60PP935201 60PP9363H17 60PP938317F 60PP9502/17 60PP950217 60PP950201 60PW936317F 60PW938317F 43PP9202/17 43PP9202/17F 43PP9202/84 43PP920217 43PP920217F 43PP920284 43PP920201 43PP920284F 46PP9302/17 46PP930217 46PP930201 46PP930217F 46PP930284 46PP930284F 46PP9302H17 50PP9202/01 50PP9202/17 50PP9202/84 50PP9202/84F 50PP920217F 51PP9303H/17 51PP9363H17 51PW9303/17F 50PP920201 50PP920217 50PP920284 50PP920284F 51PP9303H17 51PW930317F 51PW936317F 55PP9352/17 55PP935217 55PP935201 55PP9363H17 55PP9502/84 55PP950284 55PP950201 55PP950217 55PW936317F 55PW9383/17F 55RW9515/35 60PP9202/17 55PW938317F 55RW951535 60PP920217 60PP920201 60PP920217F 60PP9352/17 60PP935217 60PP935201 60PP9363H17 60PP938317F 60PP9502/17 60PP950217 60PP950201 60PW936317F )

Mar 29, 2012 | Philips Projection Televisions

2 Answers

Tv shows double image on the left half of the picture only


This is likely due to a fault in the convergence circuits or power supply to these circuits


i will list the criteria required to service TV and projector TV`s first and foremost you require a good understanding of how TV`s work and the ability of reading schematic diagrams, then you require a knowledge of how printed circuit boards are patterned so you can navigate around them to locate possible trouble spots.
then you require
1 multi meter of good quality
1 oscilloscope 20 MHz or better
1 shop service manual pertinent to your type and model of unit you wish to repair
this is a minimum requirement of test equipment you can have

you also kneed a location or locations to obtain the replacement parts you may require to complete the service task.
Now if you have all the above criteria in place then you have some hope to service your unit

a flashing red indicator on your TV usually refers to an internal circuit failure, most modern TV`s have circuits incorporated in the circuit design to protect good working components not involved in the fault from further damage so the set will not power up and an indicator light will start flashing, trouble spots can be anything like power supply under voltage, over voltage over current, no vertical deflection, excessive high voltage, XRAY, convergence failure,, EXT EXT,EXT,
Warning rear projection televisions can harbor in excess of 30,000 ,yes that is thousand Volts

There are and never will be user serviceable components inside LOL

Now if you are ready and require further assistance you may contact me and i will step you through the diagnostic procedures Good luck

Mar 01, 2011 | Hitachi 57F500 57" Rear Projection...

1 Answer

Own a mitsubishi WD-52525 52 in. Rear Projection HD TV. Already been through the "blinking light of death" problem about 2 yrs. ago. Now have a steady red lamp light. Purchased new lamp, installed, and...


You have to take the TV apart. Pull the electrical chassis out and look for bad electrolytic caps on the boards. sounds like caps on the power supply board are bad. You can tell if they are bad by the fact that their tops are puffed up and they may or may not be leaking brown fluid. Compare them against the other caps on the boards and you will see how they have flat tops.

BUT before you take the TV apart you can check the error codes by pushing "menu" and "Device" at the same time and holding for about 10 seconds. The status light will blink two numbers. ex. one flash pause two flashes is 12 Error Code Probable Cause

12 No error detected
22 Recovery from momentary Reset
32 Lamp Cover open
33 Air Filter Cover open
34 Lamp abnormality
35 Chassis Fan failure
36 Exhaust (Back Cover) or Lamp Ballast Fan failure
37 Engine (DMD or Lamp) Fan failure
38 Excess Lamp Temperature
39 Excess DMD Temperature
41 Short Detected
44 DVI Cable (between Chassis and Engine) disconnected


or use the table below -

8566f47.jpg

You can buy replacement caps from Mouser electronics online

Sep 11, 2010 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Does not turn on when plugged in. Is this a motherboard or capcitor?


That model has been plagued with capacitor failure across the entire Chassis. However if the led is srtaedy blinking green you would need the V26 Chassis DLP DM / Power baord repair kit from www.tvrepairworld.com which does come with instructions. If your symptom is different they can also help assist with what repair kit will most likely solve the issue.

Aug 07, 2010 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Have an RCA 60" rear projection tv (Model: P60752EB, Chassis: PTK169PEC). TV will not turn on. While pressing the power button it will make a clicking noise. Otherwise, there is no picture or sound. Have...


It is the 169 chassis-over 300 different models used it and are different-answer something for me--does it have a GREEN power light that comes on for a second and goes off?

I know this set well and to be honest hated working on them--Let me know about the power light and I will tell you what I know.

At one point in time this was a very good set--I do understand about paying a lot to get it fixed and having it bad again.

I am here to help people and I bet I know more about this set than almost anyone else here.

SD TECH

Dec 14, 2009 | RCA P60921 60" Rear Projection Television

1 Answer

No picture or sound mitsubishi 62525


Capacitor failure is the most likely scenario the FMT ans Signal PWB would cause the picture interference and the power pwb would cause the lamp light to turn red and give a 34 code when the device/ input and menu buttons are pressed in together and held for five seconds. That chassis has issues with every board in the chassis having failed capacitors you can get repair kits for the V26 chassis at the follwing link that come with instructions. Your model is the V26 chassis. Heres the link.
http://servicemanuals.vstore.ca/

Jan 25, 2009 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Mitsubishi VS-5071 rear projection turns on, has audio but no video


That is a VZ3 chassis, similar to Mitsubishi models Ts-4545, Ts-5045, Ts-5545, Vs-4543, Vs-4544, Vs-5043, Vs-5044, Vs-5047, Vs-6043, Vs-6047 and has common failures in the vertical circuit, specifically vert Ic401 which is a La7845 which is usually caused by defective C402 100uf 50v and/or open 1.2 ohm 2 watt R510 next to FBT.
If not that check C268 off Q215 on signal board 22mf/50v and Ic200 on signal module Cxa2025s. However the vertical failure is more likely.
Bill

Sep 10, 2008 | Mitsubishi VS-5043 50" Rear Projection...

1 Answer

R52WM24


I will need you to look on the rear tag and let me know the chassis number as that model was produced with two different chassis numbers ITC222 and the ATC221 chassis was used, But the chassis number will be on the tag on the rear panel. Please reply to this same post and I will help you locate the power supply board.

Aug 13, 2008 | RCA R52WM24 52" HDTV Projection Television

1 Answer

RCA 52 Inch


First off unplug for at least an hour. If this doesn't help, then you are in component failure. You will need to supply model,chassis and manu date for good help and you will need local expert to repair.
www.classtorations.com

Jun 08, 2008 | RCA P52937 52" Rear Projection Television

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