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TEK 465

Discussion in 'Electronic Repair' started by joesmith, Mar 7, 2008.

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  1. joesmith

    joesmith Guest

    Can anyone give me a hint as to why my 465 is dead,no fan,no HV,,,I've
    repaired about 2500 crt monitors and around a couple dozen
    lcd's,,,just a clue anyone??done checked fuses,,,
    is there three or four???(just in case)......

    DMM on top works fine.

    Many,many,many, thanks
    Joe Smith
    West Point Monitor Repair
     
  2. Jim Yanik

    Jim Yanik Guest

    the DM44 has it's own separate power supply,from separate isolated windings
    of the power transformer.

    First,you need to check the PS voltages and ripple.

    After that,you will need to download schematics/service manual from the
    BAMA website.
     
  3. Dave Platt

    Dave Platt Guest

    Can anyone give me a hint as to why my 465 is dead,no fan,no HV,,,I've
    The commonest problem with 465 and similar Tek scopes seems to be
    power supply failure, due to shorted solid-tantalum capacitors, or
    dried-up (high-ESR or open) electrolytic cans.

    http://www.repairfaq.org/sam/tshoot.htm#tshsco is a good place to
    start reading.
     
  4. Jim Yanik

    Jim Yanik Guest

    I used to replace a lot of bad bridge rectifiers in them,too.

    the BEST place to start reading is the TEK 465 service manual.
     
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