REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

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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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 !

Tuesday, 12 March 2019

DENON AVR-1910 - AVR-1620 - AVR-1610 - AVR-790 - AVR-590 AV RECEIVER INITIALIZATION AN POWER AMP CIRCUIT

DENON AVR-1910 - AVR-1620 - AVR-1610 - AVR-790 - AVR-590 AV RECEIVER INITIALIZATION AN POWER AMP CIRCUIT

 DENON AVR-1910 / AVR-1620 / AVR-1610 / AVR-790 / AVR-590

AV RECEIVER 


 INITIALIZATION AN POWER AMP CIRCUIT   

Initializing AV SURROUND RECEIVER
AV SURROUND RECEIVER initialization should be performed when the µcom, peripheral parts of µcom, and Digital P.W.B. are replaced.
1. Switch off the unit.
2. With the "SURROUND MODE LEFT ARROW " and "SURROUND MODE RIGHT ARROW" buttons pressed, press the "ON/OFF" button to turn the power on.
3. Check that the entire display is flashing with an interval of about 1 second, and release your fingers from the 2 buttons and the microprocessor will be initialized. 
Special mode setting button
** Press the ON/OFF button to turn on while pressing both buttons A and B at the same time.
Mode
Button A
Button B
Contents
µcom/DSP Version display mode
STATUS
DIMMER
Serial No. and firmware versions such as Main, Sub, DSP are
displayed in the FL manager. Errors are displayed when they
occur.

Errors checking mode
(Displaying the protection history)

STATUS

MULT EQ

Displaying the protection history
Initialization mode
SURROUND
MODE LEFT ARROW
SURROUND
MODE RIGHT ARROW
Backup data initialization is carried out.
Mode for switching tuner frequency step
SOURCE
(non)
---E2 model only---
Select with the SOURCE LEFT,RIGHT,UP ,DOWN  button.
Change tuner frequency step to AM9k/FM50kHz STEP or AM:10k/
FM:200kHz.


Mode for preventing remote control acceptance


CURSOR LEFT


RESTORER
Operations using remote control are rejected.
(Mode cancellation: Turn off power and execute the same button
operations as when performing setup.)
Panel lock mode
SURROUND MODE  LFET ARROW
RESTORER
Operations using main unit panel buttons or master volume are rejected.
Panel lock mode
(Remove Master volume)
SURROUND
MODE RIGHT ARROW
RESTORER
Operations using main unit panel buttons are rejected.


Cancellation of panel lock mode


MENU


RESTORER

Panel lock mode is cancelled.

POWER AMP CIRCUIT 
POWER SUPPLY 
Posted By: FRANK at 10:47
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