[TechAssist] Re: Sony kv20ts29 eprom II ANSwer
- From: jose luis contreras <cancuntvservicio@xxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Tue, 12 Feb 2002 13:24:56 -0600 (CST)
Hello: Richard, is me again.I have the
feeling, perhaps your problem is
not the eprom, try this, Turn on
your tv set as long as you want
(without eprom) I donot have here
the schematic, but only in the --
newest Sony tv , the eprom is --
need to have, picture. If I am
right. You have to find out, where
is really, the problem. besides -
Eprom, I will say is the micropro-
CXP 80424. One more thing, X ray
, protector might be defective.
To really help you
Give information
I.C. Micropresador Number
I.C. jungle.
If you have available other
CXP 80424 try it
"Richard Golden d.b.a. Golden Video Repair Center"
<reldong@xxxxxxxxx> escribió: >
> I did install 8 pin connector already.Unit will come
> on if, I freeze IC101
> CXP80424.And I can reset eprom in service mode.If I
> refreeze IC101 while
> unit is on I can set menu perfect.it works 5 to 1O
> mins.Then shuts down.
> It won't come back on,no relay click,untill I freeze
> IC101 again?
> If I freeze Q606 on power board the relay will
> click and I get the 5v on
> eprom 5,6,8 pins.but will not start up untill I
> freeze IC101.
> Orignal problem unit was dead replaced Q603,Q604 in
> power board.And replaced
> eprom,unit will work on old and new eprom if I
> freeze IC101? any help
> appreciated
> Richard
>
> ----- Original Message -----
> From: "jose luis contreras"
> <cancuntvservicio@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, February 09, 2002 10:31 PM
> Subject: [TechAssist] Re: Sony kv20ts29 eprom ANSWER
>
>
> >
> > ---
> >
> > Hello: Richard, I will say you already have
> > the answer. Use an I.C., 8 pins socket
> > with your old eprom, make a list from
> > all the adjusments. Then update, that
> > new eprom. With the list you made
> before.
> > I did this before several times, if -
> > your new eprom, is okey only needs ---
> > update. Where I live a new eprom is --
> > about 10 dollars.
> > Good Luck
> >
> >
> >
> >
> >
> >
> >
> >
> > Richard Golden <reldong@xxxxxxxxx> escribió: >
> > >
> > > Since I posted below I have found if I freeze IC
> 101
> > > it stays on longer.And every thing works for
> about
> > > 7mins.and have 5v on pin 5,6,8.on ephrom when
> its
> > > on.
> > >
> > > Any advice on this before I order IC, probly
> > > expensive?
> > >
> > > - Original Message -----
> > > From: "Richard Golden d.b.a. Golden Video Repair
> > > Center" <reldong@xxxxxxxxxxx>
> > > To: <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, February 08, 2002 3:32 PM
> > > Subject: SONY eprom KV20TS29
> > >
> > > Replaced eprom set gets HV but black raster
> only.I
> > > used service command nothing.Original eprom
> > > st24co2ab1 was in chassis.Andrews sent me
> > > 8-759-370-31
> > > st24c01fb6? Origninal problem was display stayed
> on
> > > channel 4, when you changed channels.And it
> would
> > > lose
> > > memory.If I froze eprom memory would come back
> for
> > > awhile.I replaced caps C060,C062,C066. Voltage
> on
> > > eprom is 1,2,3,4=0v, 5= 0.272v, 6=0.334v,
> 7=0v,
> > >
> > > 8=4.99v,
> > > any help appreciated.thanks
> > > Richard
> > >
> > >
> > > =====
> > > Richard Golden
> > > Golden Video Repair Center
> > > 1214 e. 6th street
> > > ontario ca. 91764
> > > (909)988-3356
> > >
> > > reldong@xxxxxxxxx
> > >
> > >
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