[TechAssist] Re: Sanyo DS31590 partial schematic needed
- From: "Tech Repair CD support" <support@xxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 19 Sep 2002 16:36:56 -0400
Dave,
From Tech Repair CD:
**SANYO*DS31590*DEAD AFTER STORM****Q601 SHORTED(2SC4423) FUSE Q604
LEAKY(2SC3807)*******
**Sanyo*DS31590*Dead After Surge****Replaced Fuse And Rectifiers And HV Fires
But
Brain Dead*Replaced 5v Regulator- Ic681 (ECG 977) And Got Tuning Sound, Etc. But
Now Won't turn off.*Replaced Q681 (Ecg85)*****
Also check Q695(2SC1815).
**Sanyo *DS31590*DEAD-lightning****Repaired primary sideQ601Q604Q605 all
shorted-also had caps C609 blown apart and C626 bulged like a balloon*Replaced
IC601even though it checked ok.*Found Q695 leaking. Q695 is 2SA608F.
Replaced
it with a TCG290A*****
Good luck.
Jeff
FAX 717-564-4952
Intrepid Video & Electronics
501 Luther Rd
Harrisburg PA 17111-2055
Be careful of your thoughts.
They may become your words any moment.
Order your tip CD today. Filled with TV, VCR, camcorder tips and more.
Version 3.0, ready, with more tips, user friendly program.
$49.00 for CD, plus first year of tip updates.
sales@xxxxxxxxxxxxxxx for more info
www.tech-repair.net www.intrepid-video.com
www.thetoolcaddy.com www.9-11-2001tragedy.com
********************************************************************
----- Original Message -----
From: "Dave Routson" <davestv@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, September 19, 2002 12:07 PM
Subject: [TechAssist] Sanyo DS31590 partial schematic needed
This Sanyo had power surge and every section lost
power. I have replaced all regulators, HOT, opto-isolator and still have 9
and 7V sources not all there.
Thought maybe someone has a scan or partial of
SMPS where I can trace out losses. I am just about
to zero this one but thought I would ask first.
Thanks for any help.
Dave Routson
Dave's TV
208 Stroud
Cleburne, TX 76033-8738
Ph. 817-641-8465 fax same
email. davestv@xxxxxxxxxxx
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