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Philips 3A chasis service mode?

Discussion in 'Electronic Repair' started by timppa, Oct 24, 2003.

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  1. timppa

    timppa Guest

    How can I get 3A to service mode? Do I need remote? How is mode operated? I
    need to check/change channel selector value.
     
  2. Alain Beguin

    Alain Beguin Guest

    "timppa" a écrit le/schreef op/wrote on 24/10/2003
    The only thing I can tell you;

    On the set, there is one butto with a marking like a triangle with one
    point down
    On the remote control RC5991 there is one button with the marking like
    a square on its side with an exclamation symbol
    within it. (maybe with the word "print" on it.

    You have to push those two buttons at the same time for a short while.

    The only values in that menu that I remember are; E/W = 08 and Corner
    E/W = 09

    For the rest you will have to search...

    Hope this helps,

    Greetings,

    Alain
     
  3. timppa

    timppa Guest

    Thanks!
    I managed to get to serv.mode now.
    It needed that mono button and timer/sleep button sametime.

    Now I have menu which looks like this.

    Center of screen:

    -- --

    I managed to change mem blocks.
    Those look like this:

    01 39
    02 20
    03 08
    04 01
    05 42
    06 14
    07 39
    08 --
    09 --
    10 --
    11 --
    12 --
    13 --
    14--

    I can also cnahge values, but how I can store those? I haven't found correct
    mem block and value for channeselector, but still looking for it...

    -Tim-
     
  4. timppa

    timppa Guest

    Thanks!
    I managed to get to serv.mode now.
    It needed that mono button and timer/sleep button sametime.

    Now I have menu which looks like this.

    Center of screen:

    -- --

    I managed to change mem blocks.
    Those look like this:

    01 39
    02 20
    03 08
    04 01
    05 42
    06 14
    07 39
    08 --
    09 --
    10 --
    11 --
    12 --
    13 --
    14--

    I can also cnahge values, but how I can store those? I haven't found correct
    mem block and value for channeselector, but still looking for it...

    -Tim-
     
  5. eddumweer

    eddumweer Guest

    I thought that the value for the channelselector must be in 12 or higher and
    depending the hardware (channelselector, txt.... ) the value must be 040 or
    40.

    Store everything you change "directly" with the pp-button (personal setting)
    or green button at the top of the rc5991

    Have you mounted 2 zenerdiodes 5V6 fover the eeprom from ground to sda and
    from ground to scl. It's a modification for static problems made by Philips

    Greetings Peter
     
  6. timppa

    timppa Guest

    Thanks for information!

    Only value that is changed over memblock 7 is 11. 12 cannot be changed or
    something is broken.
    I have to look for that pp button (code) because I use CME replacement
    remote that don't have such...
    Bit hard.
    If I manage to change and find correct channel selector value I will install
    those zeners.
    This tv model is not very service friendly... at all.
     
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