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.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
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 !

Tuesday 5 March 2019

PHILIPS HCD-NEZ30 CD DECK RECEIVER – TEST MODE – FACTORY RESET - PANEL TEST – CD ERROR HISTORY – AUDIO AMPLIFIER CIRCUIT - STK453 -030A - AUDIO SYSTEM REPAIR AND SERVICE

PHILIPS HCD-NEZ30 CD DECK RECEIVER – Test mode – Factory reset - Panel test – CD error history – Audio amplifier circuit - STK453 -030A - Audio system repair and service

Category: Audio System Repair and Service 

Contents of this article 

  • Test mode 
  • Factory reset procedure 
  • CD Error History 

PHILIPS HCD-NEZ30

TEST MODE
COLD RESET
The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.
Procedure:
1. Press the POWER  button to turn the power on.
2. While pressing the STOP button, press the POWER  button and turn the [VOLUME] knob in the counter-clock wise.
3. The message “RESET” is displayed and the set is reset.
PANEL TEST
All segments of liquid crystal display are tested, and the version and released date of the micro computer are displayed.
Procedure:
1. Press the POWER  button to turn the power on.
2. While pressing the [DSGX] button, press the PREVOIUS  button and turn the [VOLUME] knob in the counter-clock wise.
Then all segments of liquid crystal display are turned on.
3. Press the [DSGX] button, the version and released date of the micro computer are displayed.
4. Press the [TUNER/BAND] button, the model name and destination are displayed.
5. Press the [PLAY MODE/TUNING MODE] button, “KEY 0 0” is displayed on the liquid crystal display, and key test mode in. Each time a key is pressed, the numerical value corresponding to each key is displayed on the liquid crystal display.
6. To exit from this mode, perform the “COLD RESET”
TUNER STEP CHANGE-OVER (Except UK and East European models)
Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.
Procedure:
1. Set the FUNCTION to AM, and press the POWER  button to turn the power off.
2. While depressing the [TUNER/BAND] button, press the POWER  button.
3. The message “9K STEP” or “10K STEP” is displayed on the liquid crystal display, and thus the channel step is changed over.
CD ERROR HISTORY
When this mode is entered, optical pick-up error code is displayed with the 8-character format on the fluorescent indicator tube.
Procedure:
1. Set the FUNCTION to CD.
2. While pressing the [DSGX] button, press the CD PLAY button and turn the [VOLUME] knob in the counter-clock wise.
3. CD error history is displayed on the liquid crystal display. The first digit from the left indicates:
The first digit from the left indicates which mode the error history is. In the optical pick-up error code mode, “D” is displayed on the liquid crystal display.
The second digit from the left indicates:
(Error history No. display)
The second digit from the left indicates which order the error history is. “1” indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error. The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is indicated.
Display
Status
0 1
Not focused (TOC read without a disc)
0 2
GFS NG (TOC read with a disc chucked)
0 3
Start operation time-over
0 4
Defocused continuously (Defocused during TOC reading)
0 5
Q code not entered for specified time
0 6
Tracking not turned ON
0 7
Blank disc (Blank disc TOC read)
The 5th and 6th digit from the left indicates (Error step display)
The 5th and 6th digit from the left indicates which processing when a trouble occurred
Display
Contents
0 1
Power OFF in progress
0 2
Power ON in progress
0 3
Initialize in progress
0 4
Oscillation stopping
0 5
From oscillation stop, oscillation starting
0 6
Stopping
0 7
Stop operation is under way
0 8
Start operation in progress
0 9
TOC read in progress
0 A
Search operation is under way
0 B
Playback operation is under way
0 C
Pause operation is under way
0 D
Playback manual search operation is under way
0 E
Pause manual search operation is under way
CD POWER MANEGE
This mode is for switch the CD power supply on/off. Even if this state pulls out AC plug, it is held.
Procedure:
1. Press the POWER button to turn the power on.
2. Set the FUNCTION to CD.
3. Press the POWER button again to turn the power off (standby).
4. While pressing the CD u button, press the POWER button.
5. If turns power on and display “CD POWER”, then display “ON” or “OFF”.
POWER AMPLIFIER CIRCUIT 
USING STK453 –030A
CLICK ON THE IMAGE TO ZOOM IN
Posted By: FRANK at 01:32
TAG: , , , , , ,