[TechAssist] Re: RCA MM36100, Chassis is MMC101 or MM101 (depends on where you look) shutdown

  • From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Wed, 19 Jan 2005 12:29:47 -0500

One last mention: from my emails:
For archives,
Dead an no stby: Q14601 P4NC60 mosfet  #258229 -comes as modification
kit ; replace R14603 (1k) with 3.3k ,remove C14130 (470pf);
              and  Q14602 (SMD-5B2)#147665 ;CR14611 #234048; CR14615
5.1V  & CR14613 12V zeners
That was the first time I had that  chassis connected to my jig, after
fixing the p.supply no picture-no filament V-why?
Fil. V is deriver as usual from a flyback but is supplied to the
filament in a DC form and the jig's  CRT adapter has a tansformer in the
path.
So I modified  the  adapter  to do   DC and   AC  filament.
Phil Bader

Jim Myers wrote:

>Partsfinder says it is a MMC101 but tag on chassis says it is MM101, 
>anyway when power switch is pressed it comes on and shuts down (sounds 
>like a kid going for the last bit of Pepsi through a straw only louder), 
>if tried again same thing then after trying a few times it will go on 
>and off three times. The H yoke pulse is lower than it should be and has 
>an extra little pulse between the normal pulses. T14451 rings good, 
>swapped it anyway with one from another chassis, no change. Tried 
>following the troubleshooting guide and schematic, what a pain. Anyone 
>have a tip or a shortcut on this one.
>
>Thanks,
>********************************
>Since 1972                     *
>Jim Myers                      *
>Telrad Electronics             *
>Fort Wayne Indiana             *
>********************************
>
>
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-- 

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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