[TechAssist] Re: Sanyo DS19204 no vert
- From: "J Silverman" <greentron@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 10 Sep 2005 13:45:11 -0400
Bulletin from Orion says that all Orion/Sansui/Durabrand models produced
after July 2005 are manufactured with lead free solder. The solder should
not be mixed with standard solder. The units are marked with "SH" on the
rating sheet and the bar code labels both on the unit and on the box. Pb
Free is stamped on the main board.
Looking up the Chip-Quik patent number that they cite says that it is an
alloy of 18% tin, 11% cadmium, 28% lead, and 43% bismuth. Cadmium and lead
are materials that were supposed to be eliminated from the manufacture of
electronics and other products. Wheather the alloy they are currently
selling is the same as the one cited in the patent, I dont know.
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
Fax/Phone 864 232 3889
mail to: greentron@xxxxxxx
----- 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
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> >
> > -----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
>
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