[TechAssist] Re: Problem found...need part ID..Repost: T/A Apex GT2011J, Chassis CH10C3(s)..Dead
- From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 18 Aug 2003 16:29:23 -0500
Jeff, Philips Seeker Plus list BYM26B 482213011114, BYM26C 532213010709 and
BYM26E 482213070024. Looks like the E is 1000 PRV instead of 800 and all
other specs are the same. Part numbers in Philips Seeker Plus are different
than found on the web site and the D is not listed.
**************************************************
Jim Myers
Since 1972
Telrad Electronic Services Co.
Fort Wayne, IN 46815
*************************************************
----- Original Message -----
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, August 18, 2003 3:54 PM
Subject: [TechAssist] Re: Problem found...need part ID..Repost: T/A Apex
GT2011J, Chassis CH10C3(s)..Dead
Thanks to the many of you who sent help my way.
I found VD551 shorted. BYM26D is the number on it which shows this to be an
avalanche diode.
I used a ECG577 and set works fine, but I don't want to leave this diode in
here.
Does anyone know an NTE sub that would work? I can't find the NAP number
9338 185 10113 at any
distributors.
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
----- Original Message -----
From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
To: "Techassist" <techassist@xxxxxxxxxxxxx>
Sent: Sunday, August 17, 2003 2:47 PM
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
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