[TechAssist] Re: CTX 19" monitor PL9 (no FCC) dead, had bad Q401 and C334 rep...
- From: ELECTRONICABILLS@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 7 Aug 2004 16:54:56 EDT
Hi phil
the fet from mitsubishi is rated at 900v/3a
please make a note of it
Bill poulos
our company
Electronica
1-800-722-5578
In a message dated 8/7/2004 12:32:05 PM Mountain Daylight Time,
tjanphyl@xxxxxxxxxxxxxxx writes:
> Subj: [TechAssist] CTX 19" monitor PL9 (no FCC) dead, had bad Q401 and C334
> replaced, now can't adjust]
> Date: 8/7/2004 12:32:05 PM Mountain Daylight Time
> From: tjanphyl@xxxxxxxxxxxxxxx
> Reply-to: techassist@xxxxxxxxxxxxx
> To: techassist@xxxxxxxxxxxxx
> Sent from the Internet
>
>
>
>
>
> This was dead. Over near the flyback area on a heat sink I found shorted
> FET Q401: FS3KM18A. The 18 amp version of the FS3KM fet's. NTE crosses
> it to their NTE2387 which is only 16A rated.
> I also found a bulged cap, C334 (100mfd@250V). Replaced both parts (used
> an NTE2387).
> Unit powers on with normal display (a bit off center), and I can press
> menu, get the OSD, push button to select any function (size, centering,
> geometry, color drive,language,etc) but I cannot adjust anything.Nothing
> indicates it's doing something. No bars or numbers,no movement when the
> +,- is pressed,etc to make a change.
> I individually checked each tactile switch (OK) and very closely
> inspected for cracks (none)
> I wonder if the eeprom got corrupted when it went down.
> Is there a way to access the service menu, of at least reset it?
> Any other suggestions?
> So close...
> Phil Bader
>
> --
>
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
>
>
>
>
>
>
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