[TechAssist] Re: Sanyo DS19204 no vert
- From: "J Silverman" <greentron@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 10 Sep 2005 13:57:30 -0400
My former camcorder tech was daily popping ICs off and back on again with a
hot air gun or a torch without damaging the ICs. But sometimes you had to
touch up a lead that didnt take, or remove an occasional solder bridge. A
big problem was avoiding losing or damaging adjacent components.
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
Fax/Phone 864 232 3889
mail to: greentron@xxxxxxx
----- Original Message -----
From: "Tel-Tek Electronics" <teltek3@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, September 10, 2005 10:03 AM
Subject: [TechAssist] Re: Sanyo DS19204 no vert
> Hey Al;
> I presume that the removal of the Chip may be fine with a Hot Air Gun.
> But would replacing the new one with that method not ruin the chip, before
> the solder took?
> Inquiring minds need to know.
>
> -Ed-
> Tel-Tek Electronics
> Ontario-Canada
>
> teltek3@xxxxxxxxxxxx
> ----- Original Message -----
> From: "AL LEATHERMAN" <alleathe@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Saturday, September 10, 2005 9:38 AM
> Subject: [TechAssist] Re: Sanyo DS19204 no vert
>
>
> > I assume you tried Chip Quick? A hot air gun works with practice and
Chip
> > Quick. I have not mastered it, but I saw a young tech remove a huge
> chip,in
> > no time, and no damage. Chip Quik apparently applies solder at a low
> melting
> > point,which mixes with the solder on the board,and keeps it soft for
> > removal.Great sytuff.
> > Anybody know if Chip Quik words on leadless solder? Al L
> >
> > Al's TV
> > Mine Hill, NJ. 07803
> > 972-361-5796
> > WWW.ALS-TV.NET
> > ----- Original Message -----
> > From: "Electric Medic" <info@xxxxxxxxxxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Saturday, September 10, 2005 12:26 AM
> > Subject: [TechAssist] Re: Sanyo DS19204 no vert
> >
> >
> > > John: I have to ask. How long did it take to remove install a 80 pin
> > > surface
> > > mount. Man that must have been time consuming. Did it remove and
install
> > > and
> > > not pull up any runs? Also do you have a special machine to remove and
> > > install. All I have is my 60 watt Weller. I don't think I could handle
> > > that
> > > 80 pin. I do the small ones. Looks like I am going to have to get a
> > > station
> > > to remove and install them soon with the different heads. Pace wants
2K
> > > for
> > > one. Many micros and now even jungles are that big now. Good topic to
> see
> > > how most of you handle these? Comments?
> > >
> > > Perry Bower
> > > Electric Medic
> > > "It's Cheaper to Keep Her"
> > > http://www.electricmedic.com
> > > Check out the Electronic Repair Screensaver We created. More Images to
> > > come!
> > > To download these Collections you must first install the Eyetide
Viewer:
> > >
>
http://www.eyetide.com/download/?s=O3OfmSLHXygGHCv1W6Gz3Bgjtq3DNNMNdcKsYSVGC
> > > "We're Number One Where it Really Counts, With our Customers"
> > > 3850 Washington Road Suite 4C
> > > Augusta, Georgia 30907
> > > Phone: 706-8MEDIC4 (863-3424)
> > > Phone: 706-863-3474
> > > Fax: 706-863-2316
> > > mailto:info@xxxxxxxxxxxxxxxxx
> > > "WE REPAIR WITH CARE"
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: techassist-bounce@xxxxxxxxxxxxx
> > > [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of John Mielke
> > > Sent: Friday, September 09, 2005 7:58 PM
> > > To: techassist@xxxxxxxxxxxxx
> > > Subject: [TechAssist] Re: Sanyo DS19204 no vert
> > >
> > >
> > > I just had a DS25204-01 (similar or same?) that had no vertical
> > > deflection.
> > > It turned out to be IC101 LA76843N, a 80 pin surface mount.
Apparently
> > > this
> > > is a common problem, we had to wait about 2 - 3 months for the chip. I
> > > don't
> > > think it was expensive. Sorry, I do not have a schematic for either
> > > model.
> > > The vertical out on IC101 is on pin 26. The DS25204 is very similar to
> > > DS25320 in Sams 4801 except the DS25204 gets it's vetical B+ from the
> smps
> > > off D626 cathode and not from the fly. Let us know what you find,
> John.
> > > John Mielke
> > > Main TV
> > > 636 Main St
> > > Longmont, Co 80501
> > > 303 776 6955
> > > 303 776 0792 fax
> > > www.longmontmaintv.com
> > > maintv2004@xxxxxxxxxxx
> > > ----- Original Message -----
> > > From: <jhoeme@xxxxxxxxxxxxx>
> > > To: "Techassist" <techassist@xxxxxxxxxxxxx>
> > > Sent: Friday, September 09, 2005 4:22 PM
> > > Subject: [TechAssist] Sanyo DS19204 no vert
> > >
> > >
> > >> Output IC501 (LA78040N) has 24V on pins 2 and 6.
> > >> All associated components check ok.
> > >> I cannot see any input pulse or ramp on input pins 1 or 7.
> > >> I do not have a schematic.
> > >> Any history on this one?
> > >> TIA
> > >> Jerry Hoeme
> > >> Jerry's TV Service (Estb 1978)
> > >> 840 So. Kansas Ave
> > >> Liberal, KS 67901
> >
>
>> -------------------------------------------------------------------------
> -
> > > ---
> > >> This Email List is accessible to the general public through search
> > > engines. Remove: http://www.tech-assist.org/remove.htm
> > >> Set Vacation
> > > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> > >> Lost Password: http://www.tech-assist.org and select "Login
> Problems?".
> > >> Email Archives: //www.freelists.org/archives/techassist/
> > >>
> >
>
> --------------------------------------------------------------------------
> --
> > > -
> > > This Email List is accessible to the general public through search
> > > engines.
> > > Remove: http://www.tech-assist.org/remove.htm
> > > Set Vacation
> > > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> > > Lost Password: http://www.tech-assist.org and select "Login
Problems?".
> > > Email Archives: //www.freelists.org/archives/techassist/
> > >
> >
>
> --------------------------------------------------------------------------
> ---
> > > This Email List is accessible to the general public through search
> > > engines. Remove: http://www.tech-assist.org/remove.htm
> > > Set Vacation
> > > mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> > > Lost Password: http://www.tech-assist.org and select "Login
Problems?".
> > > Email Archives: //www.freelists.org/archives/techassist/
> >
>
> --------------------------------------------------------------------------
> ---
> > This Email List is accessible to the general public through search
> engines. Remove: http://www.tech-assist.org/remove.htm
> > Set Vacation
> mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> > Lost Password: http://www.tech-assist.org and select "Login Problems?".
> > Email Archives: //www.freelists.org/archives/techassist/
>
> --------------------------------------------------------------------------
---
> This Email List is accessible to the general public through search
engines. Remove: http://www.tech-assist.org/remove.htm
> Set Vacation
mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
> Lost Password: http://www.tech-assist.org and select "Login Problems?".
> Email Archives: //www.freelists.org/archives/techassist/
-----------------------------------------------------------------------------
This Email List is accessible to the general public through search engines.
Remove: http://www.tech-assist.org/remove.htm
Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
