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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..............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 !

Monday 25 March 2019

AIWA VX T2170 - MEMORY IC REPLACEMENT - SERVICE MODE

AIWA VX T2170 - MEMORY IC REPLACEMENT - SERVICE MODE




MEMORY IC REPLACEMENT
  • If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE.
  • Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor.
  • No need the setting for after INI 6.
ADDRESS
INI 01
INI 02
INI 03
INI 04
INI 05
INI 06
DATA
0B
11
1D
02
84
B8
  1. Enter DATA SET mode by setting VOLUME to minimum.
  2. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
  3. ADDRESS and DATA should appear.
  4. ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.
  5. Press ENTER to select DATA. When DATA is selected, it will "blink".
  6. Again, step through the DATA using SET + or - until required DATA value has been selected.
  7. Pressing ENTER will take you back to ADDRESS for further selection if necessary.
  • Repeat steps 4 to 7 until all data has been checked.
  • When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
  • The unit will now have the correct DATA for the new MEMORY IC.
ADJUSTMENT MODE SELECTION METHOD
  • Unplug the AC plug for more than 30 minutes to set the clock to the non-setting state. (To release the Back-Up immediately, take the short circuit between C101 and GND at the Power Off.)
  • Then, set the volume level to minimum.
  • Press the VOL. DOWN button on the set and the Channel button (9) on the remote control simultaneously to appear the adjustment mode on the screen.
  • Use the Channel buttons (1-7) on the remote control to select the options.
  • Press the Channel button (8) to end the adjustments.
Posted By: FRANK at 02:25
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