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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or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

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

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
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 !

Wednesday, 6 March 2019

DENON AV RECEIVER FIRMWARE UPDATE - DENON AVR-2307CI – AV RECEIVER REPAIR AND SERVICE

DENON AV Receiver firmware update - DENON AVR-2307CI – AV receiver Repair and Service

Category: AV Receiver repair and service

Contents of this article

Preparing D-sub 9 pin cable
Connection diagram
Updating the firmware

DENON AVR-2307CI

Preparations before starting the operation

Preparation for the Personal Computer:
Minimum hardware and software requirements:
Type:- PC/AT compatible
CPU:- Intel Pentium/Celeron300MHz or faster
RAM:- 128MB or more
Free hard disc space:- 25MB or more
OS:- Windows XP Home Edition / Professional SP2 or more
Display resolution:- Super VGA (800x600) or more.
Port:- Serial COM port (D-Sub 9pin)
Communication speed:- RS-232C: 115,200bps

Preparations for the cables.
Serial Straight Cable for RS-232C consisting of D-Sub 9P(female) and D-Sub 9P(female) cable. D-Sub 9P(male) and D-Sub 9P(male) Gender Changer.

Note: There is the RS-232C(Male and Female) 9P cable like the following picture on the market.
Then you don’t need to use Gender Changer. However, Please confirm a nut part. If you can't remove the nut part, then you can't use this cable. Because, AV Receiver RS-232C port also has the nut. You can not insert cable as physical conflict.

Connection diagram.
Connect the RS-232C cable between RS-232C port of PC and RS-232C port on rear panel of AV Receiver.

Install the DENON Flash ROM Writer Compact version.
(1) Execute the “FWCV_AVR2307_V0028_SETUP.exe”.
(2) Install utility according to message.
(3) After installed, you can see the ‘DENON AVR2307_FWCV_V0028’ icon on desktop.

Firmware update procedure.
Notice:
Please keep the following notice for firmware update.
a) Keep the PC environment.
b) Avoid the communication cable from the electrical noise source.
(e.g. telephone cable, AC line, a fluorescent light)
c) Don’t remove cable during update.
d) Don’t turn off the power during update.
e) Don’t run other PC application during update.
f) Stop the resident program on PC. (Virus checker and System check utility, etc)
g) Stop the screen saver ability on PC.
h) Stop the power save ability on PC.
i) In case of laptop PC, Use the AC adaptor.

Turn on the AV Receiver.
Operate the following. Turn on the AV Receiver.
1) Turn on the power switch of the AV Receiver.
2) Confirm the power indicator is green. If the power indicator is red, make the power indicator green pushing the ON/STANDBY button.

Run the DENON Flash ROM Writer Compact version.

Run the ‘DENON AVR2307_FWCV_V0028’ on desktop of PC.

Communication check.
1) Select the serial port number of PC.
2) Click the “Check communication” button

3) If connection is good, then you can see the” Communication check OK.” message.

4) Please wait 1 min at least. If connection is not good, then you can see the “Communication
check NG!” message.

Please confirm the following.
a) Check the connection .
b) Check the firmware update mode status .
c) Check the port number of PC.Start the firmware update. Click the “Update” button.
Complete the firmware update.
1) When Update utility completed the firmware update, you can see the “Update completed.” Message.

2) If you can’t complete the firmware update, please retry the firmware update from (Turn on the AV Receiver).. However, if you failed update during Main CPU update, then you need to use a specific update procedure.

Specific update mode.
If you failed update during Main CPU update, then you need to use this specific update procedure.
1) The AV Receiver is connected with PC with the RS-232C cable.
2) Push the ‘SPEAKER A’ + ‘ZONE 2’ button simultaneously. And turn on the power switch of the AV Receiver.
3) Power indicator indicates red color. This is specific update mode.
4) Please execute the firmware update.

Confirming the firmware’s number after upgraded

After completion of the updating operation, the new version number can be confirmed by starting up the AVR-2307CI according to the following procedure. With the following operation, the AVR-2307CI can be set to the Flash-ROM Version-Number Confirmation Mode. Turn the power of the AVR-2307CI on.

While holding both “STATUS” button and “DIMMER” button on the front panel simultaneously.

Every time the “STATUS” Button is pressed, version numbers of the MAIN, SUB, etc. are indicated on the front panel section in the following order.

Depression	Button	Name	Remarks
1	STATUS	MODEL	AVR
2	STATUS	MAIN	00.66
3	STATUS	SUB	00.28
4	STATUS	DSP	35.23