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ST2803W 28YRB / SIERA [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for ST2803W / SIERA.

List of fault symptoms:
  • Tripping.
  • No start-up. LED goes green, than switches back to red.
  • Line output transistor fails repeatedly.
  • No E/W correction.
  • No or intermittent audio and picture.
  • Pincushion distortion. on sides.
  • TV doesn't quit standby. It makes 3 or 4 bips in the rhythm of green LED. Then LED goes to standby, becoming immovable and red.
  • Reduced horizontal size. after a while.
  • Trips.
  • Switches to standby. after a few seconds.
  • Picture appears slowly.
  • Blank raster. Reduced horizontal deflection. Poor RC sensitivity.
  • Blowing line output transistor, about every 14 days.
  • Occasionally trips with a slight popping noise.
  • No horizontal deflection. No tuning.
  • White screen. Flyback lines.
  • Stuck in standby.
  • PSU pulsates. after a few seconds.
  • Flashing horizontal lines on the picture.
  • No audio (intermittently). No picture.
  • No picture. intermittently.
  • Burst of EHT then switches to standby. Standby LED flashes.
  • Frame shrinks at bottom of screen after a certain time.
  • Switches off by itself. after a few seconds. Red LED blinks.
  • Excessive brightness. Flashing picture. (ST2803W SIERA repair tip)
  • Line output transistor S/C.
  • Picture dark with flyback lines on upper part, when cold (approx. 2 mins). (service info for SIERA -ST2803W)
  • No function. Smell of burning.
  • Picture flashes and cuts out. Comes back by itself intermittently.
  • No start-up from standby when cold. LED changes from red to green then back to red when channel button pressed.
  • Excessive horizontal size. E/W fault.
  • Switches off by itself. at start-up.
  • Enter service mode.
  • Shuts down. LED flashes red and green.
  • Shuts down after start-up. LED flashes red, then green.
  • E/W fault.
  • Switches to standby after approx. 45 mins. Can be restarted when cold (after approx. 5mins). Fails after a short time.
  • Poor RC sensitivity.

With this service information, you may repair SIERA ST2803W faster/better when it fails.

When SIERA ST2803W 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. SIERA ST2803W fails can be better solved.

If SIERA ST2803W 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 SIERA ST2803W fails.


Additionally to repairtips or service information ST2803W 28YRB is linked to 22 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 ST2803W 28YRB).

EURAS system also knows 39 appliances having the same chassis as ST2803W 28YRB and can easily list them.

In the repair discussion pinboard for ST2803W 28YRB there are 64 replies to questions asked about 40 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for ST2803W from EURAS technicians or other users.

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Last updated: 05. Sep 2008 07:47:35 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.