Question about Sansui DTV2700 27" TV

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Sansui tv model tvs2740g

This tv have busted vert ic ic401 I need a part # can you help me? young tv JAMES 614/2992023

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  • psychotek33 Feb 20, 2009

    Same problem possibly. I have a white line across center with good audio on the same television.

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2 Suggested Answers

  • 2267 Answers

SOURCE: vert deflection problem

You are correct about having a dry or leaky capacitor that is causing those lines to show on the top of the screen.
Check the caps with low capacitance like 1uf, 10uf, 47uf, etc.
No quicker fix for this one until you change the capacitors.
Hope this helps.

Posted on Mar 14, 2008

kjhbewr32734
  • 1 Answer

SOURCE: Spare parts for Sansui TV

Hello E.C. Wait
Your parts can be found simply on amazon, click here and take a look: Amazon com sansui tv parts. Wish you best of luck.
Donald

Posted on Jan 10, 2015

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1 Answer

Retarce line


Diagonal retrace lines at the top are usually the result of bad electrolytic capacitors in the vertical deflection circuit most vert. deflection circuits derive operating B+ from a horizontal flyback transformer winding rectified & filtered usually around 24 volts the electrolytic capacitor on this supply loses capacity or may totally go open causing the retrace lines,sometimes other electro. caps in the vert circuit can cause this too, depending on the age of the tv you may find multiple substandard electrolytic caps it's best to test all for capacity & esr. Without knowing more details about your tv brand,model and/or chassis i can't help further.

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MUTE PROBLEM,I CHANGED ALL IC AND TRANSISTORS


check the spkr maybe it's busted

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check or re solder the ic of vert. defl.

Jun 09, 2009 | Sansui 27" TV

1 Answer

Mitsubisihi hd 1080 t.v.


Good Day;

Try this when th TV wont turn on:

1. SHUTDOWN CAN BE CAUSED BY NO VERTICAL DEFLECTION. SINCE THE VERTICAL CIRCUIT IS POWERED BY THE SWITCHED POWER SUPPLY THE UNIT MUST BE TURNED ON TO TROUBLESHOOT THE CIRCUIT. THIS CAN BE ACCOMPLISHED BY TEMPORARILY DISCONNECTING THE VERTICAL INPUT TO THE X-PROTECT CIRCUIT. ** TO PREVENT DAMAGE TO THE CRT'S YOU MUST UNPLUG THE CRT PCB'S. ** TO DEFEAT THE X-PROTECT CIRCUIT, UNSOLDER D4A1 LOCATED OFF THE COLLECTOR OF Q4A1. IF THE UNIT POWERS ON AT THIS POINT, YOU HAVE CONFIRMED A VERTICAL FAILURE AS THE CAUSE FOR SHUTDOWN. ** D4A1 MUST BE REINSTALLED IN CIRCUIT TO PREVENT CRT DAMAGE. ** 2.CHECK PIN 1 OF IC401 FOR 10.7VDC. IF LOW OR MISSING CHECK FOR SHORTED D4000 LOCATED OFF PIN 1. (PCB-MAIN) D4000 PART #264P487030 3. CHECK PIN 8 OF IC401 FOR 27.7VDC. IF MISSING CHECK FOR OPEN D955 AND L961 AT S1 TERMINAL OF T902. (PCB-POWER) D955 PART #264P102040 L961 PART #411P012010 4. CHECK FOR DEFECTIVE IC401. IC401 PART #272P239040, OR INSTALL PT# IC-401, THIS KIT CONTAINS CAPACITOR C920, D4000 AND IC401. BE SURE TO MOUNT C920 ON FOIL SIDE OF PCB. 5. EXCESSIVE 130V SUPPLY. CHECK C911 47 UFD 100 V AND C914 47 UFD 50 V, IN THE IC900 CIRCUIT. Good Luck, big IRISH.

Aug 21, 2008 | Mitsubishi WS-55807 TV

2 Answers

Sansui tv sv2918


replace vert IC301, C432, ( D431 & R431 should also be blown)

Jun 18, 2008 | SansuiM1315 TV

1 Answer

Sansui SV21276M. child lock on


Sansui Televisions in the United States are marketing and distributed by Orion Sales, Inc.
You can download owners manuals for Sansui TV's from their website at:

http://www.orionsalesinc.com


If you don't see your model listed there, do a search for the model number.

Mar 30, 2008 | Sansui DTV2760 27" TV

2 Answers

Vert deflection problem


You are correct about having a dry or leaky capacitor that is causing those lines to show on the top of the screen.
Check the caps with low capacitance like 1uf, 10uf, 47uf, etc.
No quicker fix for this one until you change the capacitors.
Hope this helps.

Mar 14, 2008 | Philips 32PT6441/37 32" TV

1 Answer

Tv problem


Good Day;
Sounds you have a bad vertical output IC that is defective along with some caps. Change IC > LA7838 > IC401 and ALL CAPS like cap off of pin #6 1ufd 25v and etc.
Good Luck, big IRISH.

Dec 12, 2007 | Mitsubishi WS-55807 TV

1 Answer

Vertical hold


You dont have enough vertical sweep!! Best thing to check is the vert output device and I think its an IC . BUT before that check the b+ going to that device and see if its low. I will run through a silicon diode right next to the ic. Measure both sides of the diode and if theres a big voltage drop then the diodes bad. Now also these sets are common for the b+ filter cap off thge flyback transformer. Its the voltage line that feeds that diode and the vert output section. Now measure all caps out of cucuit as most will measure good if you dont. Also just for giggles right nrxt to the big IC that has the vert ,horizontal video and sound drive there is if im not mistaking the vert parts start with c4-- or the ic will be ic4-- Its a small cap that will sayc4-- attached to nothing but the ground and one pin of the ic. I've seen this cap cause all sorts of vert problems in the past as its the vert waveshaper capacitor for the vert osc/drive. Good Luck

Apr 17, 2006 | Sharp 25VT-J100 TV

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