[TechAssist] Re: Sony VCR, SLV555 won't power up, no display
- From: greentron@xxxxxxx
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 14 Jan 2004 04:16:06 +0000
Aside from the electrolyte eating up jumpers and part leads, the scr
overvoltage protector gets triggered from electrical leakage caused by the
electrolyte. I recall having to remove some silicone rubber that covered that
area.
> Gary I sent you the ZIP file. Hope it helps.
>
> Kevin Gunn
> Star Tek Electronic Services
> 390 Springbank Drive
> London, Ontario
> www.ulurn.com/startek
>
> N6J 1G9 519-473-6366
> ----- Original Message -----
> From: "Gary McCartney" <gary@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, January 13, 2004 4:39 PM
> Subject: [TechAssist] Sony VCR, SLV555 won't power up, no display
>
>
> > I have this Sony VCR, model SLV555 which will not power up and the front
> > panel display is not lit either.
> >
> > I found a 1500uF, 25V cap in the power supply that was leaky. Replaced
> > that and a few others with high ESR. Also checked the diodes and made
> > sure that D207 has 16V on the cathode. The ON/OFF pin 2 on the 3 voltage
> > regulators (3120C, 3120C and 3050C) are at 0.8V all the time, even when
> > I push the power button.
> >
> > Does anyone have a list of the proper voltages on the power supply
> > connector pins and the source from which the regulator ON/OFF pin gets a
> > HI signal for power?
> >
> > Power supply is model APS-01UC, Sony part number 1-413-468-13
> >
> >
> > Thanks for any help.
> > --
> >
> >
> >
> >
> > Gary McCartney
> >
> > McCartney Electronics
> > Guelph Ontario Canada
> > Est. 1984
> > email: gary (at) number63.ca
> >
> > --------------------------------------------------------------------------
> ---
> > Jokes, complaints, off topics, general chat. Everything other than repair
> > help problems can be found at this new list. No archives and posts will
> not
> > be found on Google or any other engine!To remove or join, email
> > chat-request@xxxxxxxxxxxxxxx with remove or join as the subject.
> > Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
> > --------------------------------------------------------------------------
> ---
> > Lost Password:
> > http://www.tech-assist.org and select "Login Problems?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
>
>
> -----------------------------------------------------------------------------
> Jokes, complaints, off topics, general chat. Everything other than repair
> help problems can be found at this new list. No archives and posts will not
> be found on Google or any other engine!To remove or join, email
> chat-request@xxxxxxxxxxxxxxx with remove or join as the subject.
> Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
> -----------------------------------------------------------------------------
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
-----------------------------------------------------------------------------
Jokes, complaints, off topics, general chat. Everything other than repair
help problems can be found at this new list. No archives and posts will not
be found on Google or any other engine!To remove or join, email
chat-request@xxxxxxxxxxxxxxx with remove or join as the subject.
Send to the list at chat@xxxxxxxxxxxxxxx once subscribed.
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
