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 !

Saturday 16 March 2019

PANASONIC SA AK630 - ERROR CODES - SELF DIAGNOSIS - CD TEST MODE

PANASONIC SA AK630 - ERROR CODES -  SELF DIAGNOSIS - CD TEST MODE

CR-20 MECHANISM ERROR CODES
If mechanism problem occurs during normal or aging mode, the error code is “remembered” and shown on the FL display.
Reset Condition of Error Code
a. During cold start of micro-processor IC.
b. Restart of ageing mode for the mechanism unit.
 Mechanism Error Code.
CLICK ON PICTURES TO ZOOM.  Click ß at the top left of the browser to come back.
When the mechanism unit stops due to error during aging model, error code misremembered and counts of the errors are displayed on the FL display.
SELF DIAGNOSIS FUNCTION
To enter self diagnosis mode
Cassette Mechanism Test (For error code H01, H02, H03, F01)
  1. Press “TAPE, DECK 1/2” to select Deck 2.
  2. Load a cassette tape with the erasure prevention tab, remove from left side only and close the cassette holder.
  3. Press “FASTFORWARDMEMORY” (Tape will be stop after 2 seconds)
  4. Load a cassette tape with the erasure prevention tab, remove from right sideonly and close the cassette holder.
  5. Press “REVERSE FM MODE/BP” (Tape will be stop after 2 seconds)
  6. Load a pre-recorded tape with both side record tabs intact and close the cassette holder.
  7. Press “PLAY/TUNE/TIME ADJ UP” (After TPS function, tape will stop automatically)
  8. Press “REC/STOP” (Tape will not move)
  9. Press “STOP/TUNE MODE” to indicate Error code.  If several problem exist, error code will change each time when “n/STOP” is pressed. (e.g. H01 -->H03 -->F01 .....etc.)
  10. Press “TAPE, DECK 1/2” to select Deck 1.
  11. Repeat step 2 to 9 to test Deck 1. (Tape Deck 1 will not check H02 because of no recording function).
CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29, F30, H15 & H16)
  • Press [►/pause, CD]  (set to CD Mode) on main unit.
  • Press “CD DIRECT PLAY (1)” and [Eject, open/close] button on main unit.
  • Press [eject, open/close] to close the tray.
  • Press “CD DIRECT PLAY (5)” and [eject, open/close] wait until the tray is open.
  • Press [eject, open/close] and remove the CD.
  • Press [eject, open/close] to close the tray.
  • Press “n/STOP” to indicate Error Code.   If several problem exist, error code will change each time when “n/STOP” is pressed. (e.g. F15 --> F26 --> F16 ....etc).
TO CLEAR ALL ERROR CODES
  • Press and hold [stop] button for 5 seconds.
  • FL indicator shows “CLEAR” for 1 second and change to “T”
To exit from Self-Diagnostic function
Press [Power] button on main unit or remote control.
Power Amplifier Failure (F61)
When power amplifier fail, F61 will indicate automatically.
Abnormality detection for Deck Mechanism
Abnormality detection for CD/Changer
Power supply related error
Error Display: F61
  • During normal operation, if DCDET becomes ‘L’, normal POWER OFF process shall not be executed, PCNT shall be switched to ‘L’ immediately. GOODBYE shall not be displayed and the error display F61 will be displayed instead.  2 seconds after the F61 display, ECONO shall be set to ‘L’ and FL display shall be turned off.
  • The error content shall be memorized when the abnormality occurs and can be displayed in the C-mecha self-diagnostic mode described later.
CD TEST MODE
CD test mode is provided to check CD unit without connecting to changer loading mechanism. This mode shall operate CD PLAY with CD unit being connected only and CD Automatic Alignment result is shown on FL display.
Under CD test mode, pressing the numeric key ‘0’ on the remote controller will display the auto adjustment result. FLOCK, TLOCK and CLVS status shall be shown as below:
During the above display, executing CD PLAY will display auto adjustment result for CD PLAY mode.
CD MECHA AGING TEST MODE
Functional summary of CD aging test mode.  It is for the purpose to determine the reliability of the CD changer.
First, enter into self-diagnostic mode.
In the self-diagnostic mode, switch the SELECTOR to [►/PAUSE, CD] and press [|<</REW/v]. It will enter into CD aging test mode.
When in CD aging test mode, the following operation will begin and repeated:
  1. [DISC STOCKER] àDISC LOAD àTRAY OPEN (2 secs) àTRAY CLOSE] as one count.
  2. DISC 1 àDISC 2 àDISC 3 àDISC 4 àDISC 5 àDISC 1........repeating this endlessly.   While performing the above operation, the FLdisplay will show the number of its operations starting from 00001.
It shall move up one counter when the above operations end. The counter will reset to 00000 when 99999 is reached.
To exit CD aging test mode, press [POWER] button, the tray will return to its PLAY position and power will be off.
MICON ROM CHECKSUM AND VERSION DISPLAY MODE
To enter into Micon ROM checksum and Version Display Mode.
  • Enter into Self-Diagnostic Mode.
  • In the Self-Diagnostic Mode, Press [►/PAUSE, CD] twice.
The version number and the calculated ROM Checksum of the current software will be displayed on the FL as shown in this example:
The Software Version No. & Micon Software Checksum differs from set to set.
The ROM Checksum is calculated on demand, not hard coded.
The ROM Checksum is calculated by talking the arithmetic SUM of the ROM contents from the program’s START address until the END address.
START address = [1080]H
END address = [FFFD]H
Posted By: FRANK at 07:12
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