[TechAssist] Re: Sony kv27ts32 SMPS kit installed,replaced 2SC4927 v.hot
- From: "Leonard Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 5 Sep 2003 08:20:16 -0400
I use the 2SD1881 to replace the 2sc4927. They run cooler, are more stable
and more reliable. I have had more recalls with $10 Sony replacements than
with $2.00 generics. No heat sink is needed IMO if there are not other
problems with the circuit.
I can provide my customers with a better value and make more profit by using
a replacement in this case, so that's what we do. I recommend caution when
deciding to use subs, however, and recommend comparing in circuit
performance carefully to the original.
Leonard Caillouet
Electronics World
Gainesville, FL
----- Original Message -----
From: "Philip Bader" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Friday, September 05, 2003 8:12 AM
Subject: [TechAssist] Re: Sony kv27ts32 SMPS kit installed,replaced 2SC4927
v.hot
> Interesting...
> So:
> How does the group feel about using an alternate transistor sub
> mentioned for Sonys?
> anyone else do this?
> Feedback!
> Phil Bader
>
> Jorge Camboni wrote:
> >
> > 2SC4927 is not the best choice, it ALWAYS runs hot on those sets
> > Too many better subs to list.
> > Even old slow D1556 works better, if you want a premium sub transistor
> > try 2SD2578/80 . Usual replacement: 2SD1880/81
> > I usually add a piece of aluminium stock to the heatsink.
> > Have had 0 returns so far.
> > Jorge
> >
> > At 04:54 p.m. 04/09/03 -0400, you wrote:
> > >Had a shorted HOT 2SC4927 and the SMPS transistors
> > >Q601,602,resistors,etc.
> > >Installed an SMPS kit (OEM-Q601,602, 3 VDRs, 2 resistors). and an OEM
> > >2SC4927 HOT. Powers up,plays good, but I think the new HOT runs hot.
> > >What other parts are usually responsible for this?
> > >Phil Bader
> > >--
> > >Philip Bader
> > >Jan Phyl TV Inc. (estab. 1976)
> > >3420 Recker Hwy. Winter Haven, Fl. 33880
> > >Fax (863) 299-8821
> > >email: tjanphyl@xxxxxxxxxxxxxxx
> > >For Professional Technicians Only
> > >
> >
>***************************************************************************
**
> > >Classifieds! Buy or Sell!
> > >http://sell.tech-assist.org
> > >The Tech Address Book:
> > >http://www.tech-assist.org/secure/tip/contact.htm
> > >Add a Repair Tip Here, or Change/Remove your Email Address:
> > >http://www.tech-assist.org/secure/tip/main.htm
> > >Lost Password:
> > >http://www.tech-assist.org and select "Lost your Login Info?".
> > >Email Archives:
> > >//www.freelists.org/archives/techassist/
> >
> > Jorge Camboni, GY Electronics, Richardson, TX
> >
> >
****************************************************************************
*
> > Classifieds! Buy or Sell!
> > http://sell.tech-assist.org
> > The Tech Address Book:
> > http://www.tech-assist.org/secure/tip/contact.htm
> > Add a Repair Tip Here, or Change/Remove your Email Address:
> > http://www.tech-assist.org/secure/tip/main.htm
> > Lost Password:
> > http://www.tech-assist.org and select "Lost your Login Info?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
>
> --
> Philip Bader
> Jan Phyl TV Inc. (estab. 1976)
> 3420 Recker Hwy. Winter Haven, Fl. 33880
> Fax (863) 299-8821
> email: tjanphyl@xxxxxxxxxxxxxxx
> For Professional Technicians Only
>
>
****************************************************************************
*
> Classifieds! Buy or Sell!
> http://sell.tech-assist.org
> The Tech Address Book:
> http://www.tech-assist.org/secure/tip/contact.htm
> Add a Repair Tip Here, or Change/Remove your Email Address:
> http://www.tech-assist.org/secure/tip/main.htm
> Lost Password:
> http://www.tech-assist.org and select "Lost your Login Info?".
> Email Archives:
> //www.freelists.org/archives/techassist/
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
