Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!

Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

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So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Thursday, 21 March 2019

PIONEER PDP-42A3HD - PDP-4214HD - FAULTS & SYMPTOMS

TYPICAL SYMPTOM ARE ONLY SHOWN. ANOTHER SYMPTOM MIGHT APPEAR.
Symptom: Vertical line Block

Cause: Countermeasure:

Open or contact failure of Data flexible Cable àClean, Reconnect or exchange connector.
Failure in Data IC à Exchange PDP
Failure in Data Relay Board à Exchange the Data Relay Board.
Failure in multiple Data IC à Exchange PDP.

Symptom: Horizontal lines

Cause: Countermeasure:

Failure in Scan IC on Scan Relay Board - Exchange Scan Relay Board.Open or contact failure of Scan Flexible Cable (CN01-CN04) at output side of Scan Relay Board (U,D). à Clean, Reconnect or exchange connector.
Contact failure of connector between Scan Board and Scan Relay Board. à Clean, Reconnect or exchange connector.
Short between terminals of Scan IC due to screw dust à Clean around the terminals.

Symptom: No Picture (Priming flash).

Cause: Countermeasure:

1F302 open. à Exchange High Voltage Board.

If the connector CN7709 disconnected from Data Relay Board (RU ) is short-circuited between Pin 1 (or 2) and GND (Pin 3 or 4) à Data IC is broken à Exchange PDP.
If the connector CN7709 disconnected from Data Relay Board (RU) is short-circuited between Pin 5 (or 6) and GND (Pin 3 or 4) à Data Relay Board (LU) or (RU) is failed ]
If the connector CN7608 disconnected from Data Relay Board (LU) is short-circuited between Pin 1 and GND (Pin 2 or 6) à Data Relay Board (LU) is failed à Exchange Data Relay Board (LU).
If the connector CN7708 disconnected from Data Relay Board (RU) is short-circuited between Pin 1 and GND (Pin 2 or 6) à Data Relay Board (RU) is failed à Exchange Data Relay Board (RU).

If the connector CN7909 disconnected from Data Relay Board (RD) is short-circuited between Pin 1 (or 2) and GND (Pin 3 or 4) à Data IC is broken à Exchange PDP.
If the connector CN7909 disconnected from Data Relay Board (RD) is short-circuited between Pin 5 (or 6) and GND (Pin 3 or 4) à Data Relay Board (LD) or (RD) is failed]
If the connector CN7808 disconnected from Data Relay Board (LD) is short-circuited between Pin 8 and GND (Pin 3 or 7) à Data Relay Board (LD) is failed à Exchange Data Relay Board (LD).
If the connector CN7908 disconnected from Data Relay Board (RD) is short-circuited between Pin 8 and GND (Pin 3 or 7) à Data Relay Board (RD) is failed à Exchange Data Relay Board (RD).

Symptom: No Picture. (Priming doesn’t flash if W-X terminals are short-circuited.)

Cause/Countermeasure: No Diode characteristic à Exchange High Voltage Board.

Symptom: Abnormalities in a picture.

ONE OR MORE VERTICAL BANDS, MULTIPLE VERTICAL BANDS

OUT OF SYNCHRONIZATION OR DUPLICATION

RECTANGULAR COLOR SHEAR, COLOR DISCREPANCY, SHEAR IN DISPLAY

TRANSPARENT VERTICAL BAND

MOSAIC

A NUMBER OF LATERAL LINES, REGULAR NOISE

Cause: Countermeasure :

Contact failure of connector adjacent to Digital Board or short circuit due to conductive obstacle. à Clean or Reconnect.
Failure in circuit on Digital Board. à Failure in Digital Board.

PIONEER PDP-42A3HD - PDP-4214HD - FAULTS & SYMPTOMS

POWER OFF
Symptom: No Picture (Priming doesn't flash) > Power off.

Cause | Countermeasure:

F301 open à Exchange High Voltage Board.
FU801 open à Exchange Digital Board.

Cause | Countermeasure :

If short-circuited, disconnect connector between High Voltage Board and Scan Relay Board and,
Short between NEGA-POSI on High Voltage Board à Exchange High Voltage Board.
Short between NEGA-POSI on Scan Relay Board (U) à Exchange Scan Relay Board (U).
Short between NEGA-POSI on Scan Relay Board (D) à Exchange Scan Relay Board (D).