[TechAssist] Re: Repost: T/A Apex GT2011J, Chassis CH10C3(s)..Dead
- From: "George" <grndmstrg@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 17 Aug 2003 12:53:50 -0700
Jeff,
9.6 volts in primary of SMPS transformer sounds way too low.
George
Afana Electronics
Moreno Valley, CA
----- Original Message -----
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: "Techassist" <techassist@xxxxxxxxxxxxx>
Sent: Sunday, August 17, 2003 11:47 AM
Subject: [TechAssist] Repost: T/A Apex GT2011J, Chassis CH10C3(s)..Dead
> I received the schematics from three different people..thank you..
> Unfortunately, even in PDF, these things are hard to follow.
> This set is dead...Only voltages I find are 152vdc on C of HOT. and 9.6 in
primary of SMPS transformer. No
> voltages on secondary.
> Also, no 5vdc standby can be found.
> I can not find a HOT on this unit. I find two large transistors on heat
sinks, neither of which measure
> shorted out of circuit.
> 2SD2102 is the one with the Coll going to IHVT, but I think this is a
Darlington transistor.
> 2SD4423 is the other one on primary of SMPS transformer with 152 v on
COLL.
> I checked all part on the primary and find nothing shorted. I tried to
place a light bulb in place of fuse
> and Coll of the transformer on power supply and still dead.
> Can anyone who has worked on these give me a boost in the right direction?
> Thank you.
>
> Jeff Dougherty
> Intrepid Video TV/VCR
> 263 S Front St
> Steelton PA 17113
> fax...717-564-4952
> www.intrepid-video.com www.tech-repair.net
>
>
****************************************************************************
*
> 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:
