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TNY264 - What do the other ID numbers mean please?

Discussion in 'Troubleshooting and Repair' started by grahal, Nov 23, 2019.

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  1. grahal

    grahal

    2
    0
    Nov 23, 2019
    Hello
    I am considering replacing a TNY 264 on a pcb out of a Bosch dishwasher.

    These numbers shown on the device ... 1145 tny264gn oc 914b

    What do the numbers 1145 and oc914b mean?

    When I look on the Farnell website I can see TNY264 only ... do I need to be concerned about any other ID numbers in order to source a direct replacement part?

    Thank You
    PS
    I know about ... 'what might have blown the TNY264 etc' but as they are only £3 ish delivered I thought I'd bang a new one in and if that doesn't fix it then unless I see anything obvious I would buy a new dishwasher.
     
    Last edited: Nov 23, 2019
  2. Minder

    Minder

    2,922
    615
    Apr 24, 2015
    Often manuf. date of production/ver etc.etc.
    M.
     
    grahal likes this.
  3. bertus

    bertus

    346
    112
    Nov 8, 2019
    Hello,

    The TNY264 seems to be a controller for a small switched mode power supply.
    The G behind the number stands for the SMD casing.

    Bertus
     

    Attached Files:

    grahal likes this.
  4. 73's de Edd

    73's de Edd

    2,805
    1,176
    Aug 21, 2015
    Sir grahal . . . . .


    If you haven't already viewed and actually examined the unit and you have a dead unit with no display or other action, that is a very good possibility.
    And even BETTER if someone was around in the area and heard a ! POP !.

    Here is an application note for the unit and if you dont have an exact visual of the case of the unit having a pinhole in it or the top blown off by its internal Power FET exploding. Also check for the RF1 fusible resistor being open or burnt cased.
    Just after confirming all of your D1-2-3-4 diodes are not being shorted , and that C1 filter capacitor has not gone "lazy" on you ;
    some applicable secondary fault parts considerations would be all of the PINK cased components, if you don't find output voltage at the C5 C6 caps with the unit powered up.

    APPLICATION NOTE . . . . .

    upload_2019-11-23_19-33-1.png


    MASSIVE FAILURE au . . . . . . a now, very T( i )NY264

    [​IMG]


    Thaaaaassssssssit . . . . .


    73's de Edd . . . . .



    Ever stop to think . . . . . and then forget to start again ?



    .
     
    Last edited: Nov 24, 2019
  5. grahal

    grahal

    2
    0
    Nov 23, 2019
    Thank You Guys, each one for your very helpful replies.

    Yeah the leg at the red arrowhead has blown off altogether! :)

    It's my daughters dishwasher and I was hoping the fix wouldn't turn into a big job / a mission!? :(

    Clearly something heavy current-wise has blown the leg off?

    What is there in a dishy ... heater? motor turning the water jet thingy? motor doing the emptying?

    Any comments or ideas welcomed and much appreciated!

    Thank You
     

    Attached Files:

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