[TechAssist] Re: Fw: MITS CS-20203 Need tips and or Print
- From: "Bill McFarland" <billmcfarland@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 15 Jan 2002 09:08:46 -0700
Marty,
Yes and No.
I jumped the relay and the unit runs (i.e. High Voltage, and a full raster).
But, if I push the power button to turn on the processor the relay clicks
and then clicks right back off.
I will spend some more time in the unit with the info you have given below
and see if I can get more clues.
If worse comes to worse. I may ask you to scan a portion of the sams like
you said.
I will keep the group abreast of the situation.
Thanks for the help!
Good luck, God Bless
Bill McFarland
DMC Electronics
Salt Lake City, Utah
----- Original Message -----
From: DEVROUGH GROUP <TechDept@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, January 14, 2002 9:04 PM
Subject: [TechAssist] Re: Fw: MITS CS-20203 Need tips and or Print
>
> If you jump the relay does it still shutdown? When it is on does it have
> sound or picture? C710, C724, C721 are they ok.
>
> Shutdown, disconnect the cathode of D651. It goes without saying that
> caution should be observed with the shutdown defeated, not to exceed the
> high voltage rating.
>
> Pin 16, IC2001 4.5volts in shutdown.
>
> I can scan the sams if required or any portion thereof.
>
> Marty
> Marty@xxxxxxxxxxxx
>
>
> -----Original Message-----
> From: techassist-bounce@xxxxxxxxxxxxx
> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Bill McFarland
> Sent: Monday, January 14, 2002 10:47 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: Fw: MITS CS-20203 Need tips and or Print
>
>
> UPDATE:
>
> OK I unsoldered the tuner as suggested. NO GO.
>
> I also swapped out the LM7809. NO GO.
>
> I guess I am gonna need a print for this. Anyone have one?
>
> I will gladly pay for shipping and copy cost!
>
> I really believe that its a X-Ray problem. It clicks on gets high voltage
> then turns right back off.
>
> Good luck, God Bless
> Bill McFarland
> DMC Electronics
> Salt Lake City, Utah
>
> ----- Original Message -----
> From: <gulftech@xxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Monday, January 14, 2002 11:30 AM
> Subject: [TechAssist] Re: Fw: MITS CS-20203 Need tips and or Print
>
>
> >
> > Bill,
> >
> > You are right. It is made by Sharp. I was as surprised as you when I
> > saw my first.
> >
> > Several tips I have for that model suggest replacement of IC751, 7809
> > 9-volt regulator. A similar model also shows problems with the relay
> > RY701. Resolder the leads.
> >
> > Hope this helps,
> >
> >
> > Ken Smith
> > Gulf Technical Services
> > 3034 Gulf Breeze Parkway
> > Gulf Breeze, FL 32561
> > 850-934-8324 (Voice) 850-932-0819 (Fax)
> >
> >
> > On Mon, 14 Jan 2002 10:38:11 -0700 "Bill McFarland"
> > <billmcfarland@xxxxxxxxxxxxxx> writes:
> > > Hello all,
> > >
> > > I have a CS-20203 (Looks like it was made by sharp on the inside.
> > > When did Mits start buying stuff from other manufactures?)
> > >
> > > Unit turns on then right back off.
> > > B+ is 122 Volts which is correct as far as I can tell (There is an
> > > adjustment for the B+ labeled 122V Adj)
> > >
> > > Because the B+ was ok. I forced the unit on by jumping the relay.
> > > Unit came on and stayed on.Turning up the G2 showed a full raster
> > > with no anomalies.
> > >
> > > Turning the processor on the unit still shut down. I am thinking it
> > > has a X-Ray protect problem.
> > >
> > > Anyone with a Tip or a print?
> > > Any help is appreciated!
> > >
> > > Good luck, God Bless
> > > Bill McFarland
> > > DMC Electronics
> > >
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