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21B5T31SXS / SANG [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for 21B5T31SXS / SANG.

List of fault symptoms:
  • No picture. OSD OK .
  • Dark picture with a line in upper part of picture.
  • Disable child lock.
  • Protection mode activated.
  • Pulsating picture.
  • No audio (after a while).
  • No picture. Audio OK .
  • No OSD.
  • Switches off by itself. after a few seconds.
  • No picture when started with RC.
  • How to enter the service menu via RC P909 and P817.
  • Wow in audio.
  • Picture is reduced. Picture appears for a moment and drifts off tune immediately.
  • Screen adjustment.
  • Geometry adjustments.
  • No picture. (SANG - 21B5T31SXS information)
  • Dark picture. Flyback lines.
  • IF adjustments - PAL SECAM BG/DK/I. (+ extract of circuit diagram) (21B5T31SXS tips)
  • No AV.
  • Some channels missing.
  • Poor picture. depending on picture content.
  • No colour. Poor audio.
  • No TXT. (21B5T31SXS tips)
  • No start-up from standby with RC.
  • Horizontal output transistor fails repeatedly.
  • White balance adjustment.
  • Dead.
  • Does not switch to standby.
  • IF adjustments - SECAM L/L'. (part of circuit diagram displayed)
  • Reduced horizontal size.
  • No picture. No raster. Audio OK .
  • Enter service mode.
  • No start-up. PSU pulsates.
  • AGC adjustment. (picture attached)
  • No audio. No picture.
  • Stuck in standby.
  • Flashing screen. (21B5T31SXS tip from SANG)
  • Horizontal size adjustment.
  • Flyback lines.
  • Picture is negative, not synchronised, black and white.
  • Brightness varies.

With this service information, you may repair SANG 21B5T31SXS faster/better when it fails.

When SANG 21B5T31SXS fails , these symptoms are known and EURAS knows the remedy/solution.

Tips are coming from EURAS customers, workshops and payed technicians from all over the world. SANG 21B5T31SXS fails can be better solved.

If SANG 21B5T31SXS fails, this information will help you. Here you can only see the symptom list, to access remedies, you must register.

With help of this list a solution is found often when SANG 21B5T31SXS fails.


Additionally to repairtips or service information 21B5T31SXS is linked to 38 components (IC's and/or transformers) in the Tectra database, through which you can identify electrical compatibilities (crossreferences) in appliances.


Chassis information is available (which chassis is built in into 21B5T31SXS ).

EURAS system also knows 154 appliances having the same chassis as 21B5T31SXS and can easily list them.

In the repair discussion pinboard for 21B5T31SXS there are 3 replies to questions asked about 2 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for 21B5T31SXS from EURAS technicians or other users.

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Last updated: 30. Aug 2008 01:56:19 MET, doccode ISO9002AS168EKA200805C EURASMOP

Responsible for the content: EURAS International GmbH, Eime, Germany. All rights reserved, EURAS database V2.0 (C) 2002-2008. All brand- or productnames are copyrighted by the respective manufacturer of the appliance and are only being used for identification purposes.