[TechAssist] Re: Does anyone have a schematic for a Sony SLV-679HF VCR?
- From: "Technotronic Dimensions" <techforce@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 4 Feb 2003 13:42:39 -0500
If you want to do it the same way the Factories do it, take a Heat Gun, and
move it in a circular motion around the IC about 2 Inches from
it....depending on Wattage of Heat Gun.
Have a Small Flat Blade Screwdriver or X-Acto Knife under the end of the IC
between the PCB and the IC. While applying the heat, apply a slight twist to
the tool. When it starts to feel like its moving, you have reahed the
melting point of the solder....and can back off the Heat a bit to avoid
stress to the IC or Components around it.
Once IC is removed, clean up old Solder With Wick. When New IC is ready to
be installed, put new solder on the pads - use small amount to just fill the
pads a bit. Align IC so all the pins are in correct position on the
pads.....then use the heat gun again while holding the IC down with the
Tool. If you use too much solder on the pads, you may have to use the wick
again to clean up bridges. This is more prone to happpen on the flat pack
type IC's where the pins are coming out from all sides.
Steve
Technotronic Dimensions, NY (USA)
www.Technotronic-Dimensions.com
1-877-817-9885
1-877-817-9885 (FAX)
----- Original Message -----
From: "Leonard G. Caillouet" <lcaillo@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, February 04, 2003 1:31 PM
Subject: [TechAssist] Re: Does anyone have a schematic for a Sony SLV-679HF
VCR?
>
> A very easy and reliable way to remove a surface mount IC is to use a
sharp
> knife or dremel tool and cut the legs off right at the IC then remove the
> legs with solder wick. We do it all the time and have no problems, works
> great for the ones that are flued or taped to the PC board as well because
> the chip is completely free from the legs so you never have to worry about
> lifting traces.
>
> No special equipment is needed.
>
> Leonard G. Caillouet
> Service Manager
> Electronics World
> Gainesville, FL
> 352-332-5608
> 352-332-5668 (fax)
>
> ----- Original Message -----
> From: "teltek3" <teltek3@xxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, February 04, 2003 8:03 AM
> Subject: [TechAssist] Re: Does anyone have a schematic for a Sony
SLV-679HF
> VCR?
>
>
> >
> > Kevin;
> > If you plan on removing a Flat-pack IC, and do not have the proper
> > removal/install equipment, from experience, save yourself the cost of
> > purchasing the IC, it will end up costing you money in the long run.
> >
> > -Ed-
> > Tel-Tek Electronics
> > Ontario-Canada
> >
> > teltek2@xxxxxxxxxxxx
> > ----- Original Message -----
> > From: "Kevin" <kevintv@xxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Tuesday, February 04, 2003 2:05 AM
> > Subject: [TechAssist] Re: Does anyone have a schematic for a Sony
> SLV-679HF
> > VCR?
> >
> >
> > >
> > > Jeff, it looks like IC360 is my culprit. With the VCR plugged in for
> > > just a few seconds it gets too hot. B+ to the IC is fine and the
> > > voltage out is too low. I wonder how much Sony wants for this
> > > part?!%$#@#$#% Plus it is surface mount which I have never done and
> > > don't have the right equipment for. Oh well, another challenge!
> > >
> > > Kevin Wilks
> > > Kevin's TV & Video Repair
> > > Penticton BC Canada
> > > kevintv@xxxxxxx
> > >
> > >
> > > -----Original Message-----
> > > From: techassist-bounce@xxxxxxxxxxxxx
> > > [mailto:techassist-bounce@xxxxxxxxxxxxx] On Behalf Of Jeff Dougherty
> > > Sent: Thursday, January 30, 2003 3:52 PM
> > > To: techassist@xxxxxxxxxxxxx
> > > Subject: [TechAssist] Re: Does anyone have a schematic for a Sony
> > > SLV-679HF VCR?
> > >
> > >
> > > Kevin,
> > > IC360 is the audio processor.
> > > p/n 875955937
> > > (TDA9605H)
> > > Good luck
> > > FAX 717-564-4952
> > > Jeff Dougherty
> > > Intrepid Video & Electronics Be careful of your thoughts.
> > > 501 Luther Rd They may become your words
> > > Harrisburg, PA 17111 any moment.
> > > VCR tips, electronics info & general interest.
> > > www.intrepid-video.com www.tech-repair.net
> > > www.thetoolcaddy.com www.9-11-2001tragedy.com
> > >
***********************************************************************
> > >
> > > ----- Original Message -----
> > > From: "Kevin" <kevintv@xxxxxxx>
> > > To: "TECH-ASSIST" <techassist@xxxxxxxxxxxxx>
> > > Sent: Wednesday, January 29, 2003 2:50 AM
> > > Subject: [TechAssist] Does anyone have a schematic for a Sony
SLV-679HF
> > > VCR?
> > >
> > >
> > > Hi fellow techs,
> > >
> > > This VCR has no audio from tape or tuner. A schematic would be of
great
> > > assistance in this repair. TIA
> > >
> > > Kevin Wilks
> > > Kevin's TV & Video Repair
> > > Penticton BC Canada
> > > kevintv@xxxxxxx
> > >
> > >
> > >
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