Question about Sanyo DS25390 TV

DS25390 Verticle foldover

Verticle IC part # for DS25390-02 chassis?

Jack Ewer Aug 11, 2007

Hi finally got the Sanyo DS25390-02 TV fixed. I replaced C502(220uf/35V) , C516(4.7uf/50V) & C503(3.3uf/50V). The ESR on all 3 of these caps was way out of specs. The verticle IC501 is a LA7841 (NTE 7153). There are also C501(10uf/50V)& C504(2200uf/25V) in this circuit which measured good so I left them alone. After several days the set is playing great. Hope this helps someone else, Happy Trails....Jack

1 Answer

Mike Longo

Level 2:

An expert who has achieved level 2 by getting 100 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.
Expert
398 Answers

If you have a picture but the top is folded over, your vertical IC is probably good and you need to replace the pump-up capacitor next to the IC. When the pump-up cap (typically a 47 or 100uF 35V cap) is open then the picture will have white lines and foldover at the top. The typical vertical output IC is the LA7838, but I am not familiar with exactly which output IC your set uses.

Posted on Jul 03, 2007

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0 Answers

DS 27880. Foldover Problem on Statrup. Is capacitor replacement not a logical fix as I have repaired many TV,S with foldover with Cap Replacement?

Jul 24, 2017 | Televison & Video

1 Answer

I lost my system ic i nid part number?

I'm assuming that your TV is Sanyo DS25390.

Click this LINK. Download the Service manual, you can now determine the system IC of your TV. When you are on the link, click "Get Manual" to automatically begin the download.

Dec 14, 2011 | Sanyo DS25390 TV

1 Answer

Vertical deflection

You will have to inspect the pins of the vertical IC. They may need resoldered. And you may have to replace some of the capacitors in the immediate area of this IC. If you still have a vertical problem you may have to replace the vertical IC.And please check the diodes near this IC, rare but occasionally they will short out.

Aug 04, 2010 | Sanyo DS25390 TV

1 Answer

Retress line with vertical foldover

Vertical suddenly fold over? Vertical IC loosing connection with board. Best solution is to reflux or resolder it. If not damage vertical IC, replace it. That should fix the problem.

Apr 13, 2009 | Samsung SyncMaster 753S 17" CRT Monitor

1 Answer

Logik lt2974 small picture

the problem is in the verticle section, if you are a technician check a verticle IC and a capacitor of that stage. to allocate a verticle stage follow 4 cables coming down from deflection coils, two of these wires goes near transformer, this is horizotal and the other two goes near an IC this is verticle. positive idea.

Nov 22, 2008 | Zenith B25A02Z TV

1 Answer

Verticle output ic

Its a small black IC mounted to an aluminum heatsink on the tvs main circuit board

May 03, 2008 | Televison & Video

1 Answer

Question?

R483 near FBT, and R511 near vertical IC (FBT is flyback transformer) Has big red wire coming out

Apr 30, 2008 | Sanyo DS25390 TV

2 Answers

One White Horizontal line on black screen

replace the vertical IC problem solved

Dec 31, 2007 | Sanyo DS25390 TV

1 Answer

Sanyo DS25390 Vertical problem

Jack,Did the Vert Ic have Broken conns around the legs?

Jul 02, 2007 | Sanyo DS25390 TV

2 Answers

Monitor problem

this sounds like a verticle foldover problem . This could be as simple as a defective wave shapper capacitor or could be the main vert. sweep IC also. All these parts are soldered in so if you have no experience with this stuff please seek profesional assistance with this repair Good Luck

Jul 06, 2006 | Orion STV2763 27" TV