[TechAssist] CTX 19" monitor PL9 (no FCC) dead, had bad Q401 and C334 replaced, now can't adjust]
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: "techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx>
- Date: Sat, 07 Aug 2004 14:31:35 -0400
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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