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Sony KV-29LS35k chassis FE2

19 Cze 2004 20:24 11828 2
  • Poziom 15  
    W odbiorniku po włączeniu miga dioda 2 razy. R- 618 270 k -sprawny.Napięcie 135 V,8 V OK,tranzystor H sprawny.Usterka powstała po zaniku napiecia w sieci.Po odlączeniu H i podlączeniu żarówki -żarówka świeci (dioda miga 5 razy).Prosze o jakąś pomoc.
  • Poziom 43  
    Poniżej opis blink code Sony a blink code Sony chassis FE2 masz w załączniku
    Many of the later model Sony TV's have a built in Self- Diagnosis
    function. If the timer/standby indicator is blinking, this
    could be an indication of the problem with the unit. The diagnostic
    blinking will occur automatically with no action
    required by you to engage it.

    The timing of the blinking you see would be as follows: two to eight
    blinks (depending on the fault) about a third of a
    second apart, then pauses for 3 seconds, then the two to eight
    blinks about a third of a second apart again.

    Here is a list of the problems that might have occurred indicated by
    the number of blinks. The words in parentheses are
    those which you will see for each of these faults on a diagnosis
    screen described later in this article.

    Unit is dead and there are no blinks---Problem in the standby power
    section. Might check fuse, R607, Q601, IC601, R612
    and VDR601 (should show open)

    Continuous Blink Once A Second, No Pausing As Discussed Above---
    No reply from the jungle IC301 (data bus is busy, shorted to ground
    or held high), IK video path is defective.

    ONE Blink--- not used for the self-diagnosis

    TWO Blinks---B+ over current protection (OCP) , unit goes to the
    standby mode then displays the 2 blink fault. Could be a
    short in the power supply of any of the circuits.

    THREE Blinks---B+ over voltage protection (OVP), unit goes to the
    standby mode then displays the 3 blink fault. This is
    also a problem in the power supply circuit, check T603 and R672.

    FOUR Blinks---No Vert. Deflection (V STOP), Screen goes to a single
    horizontal line then the video signal muted. Check
    IC1509, Q1505

    FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks
    for about 30 seconds then goes to the self-diagnosis
    function. Something is wrong with the video. Check video out, Q705,
    732, 761 and other components on the C board, also check
    Q218, 219, 220 on the A board. Also unit be in IK blanking, try
    turning up screen slightly.

    SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking
    self-diagnosis function immediately. Check C515 & 516
    and the jungle IC, IC206.

    SEVEN Blinks---High voltage shutdown. The high voltage has exceeded
    33k and the unit goes immediately into safety shutdown.
    Check power supply regulation and horizontal circuits.

    EIGHT Blinks---Problem with the audio (AUDIO), unit goes to standby
    and blinks the self-diagnosis code. Check IC406 audio
    amp, PS401 and 402.

    Intermittent problems ?? This is a great feature. You can also bring
    up these fault codes ON-SCREEN to see a list of the
    problem numbers with the abbreviation of the problem and the number
    of times this problem has occurred. This is slightly
    different than entering the service mode. To see the diagnostic
    screen, Press the following buttons:

    Display, Channel, 5, Vol Minus, ( Not plus ) then Power. This brings
    up a screen with a list of the problems and number
    of times they have occurred. Each of the problem names is abbreviated
    as, "OCP", "OVP", "V STOP", ETC. We have repeated
    them in parentheses in the text for the "Blinks" described above so
    you can correlate between the diagnostic screen and
    the blink codes.

    So, now that you know about these self-diagnostics, how do you use
    them? Say that you have a set with a black screen. You
    see that the LED is blinking 4 times....This would tell you that you
    have no vertical and that is why the video is muted.
    If it was blinking 6 times, you would know that you have a
    horizontal fault.

    It's not a sure cure, but it's a little better than a poke in the eye
    with a sharp stick.

    IMPORTANT: after you repair the unit, PLEASE clear the values on this
    diagnostic screen. These codes do not reset
    themselves after the fault is corrected, so if you don't clear them,
    you'll be seeing "old" fault codes the next time
    you enter this screen.

    Clearing is done by going into the service mode ( display, channel,
    5, volume plus, then power ) then press 8 and Enter,
    which of course returns everything to the factory preset condition.
  • Poziom 15  
    Wymiana trafopowielacza 859883440 przyniosła oczekiwany rezultat.Odbiornik działa.
    Czy w tym modelu bardzo ciepły radiator od V-out to rzecz normalna?