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SG1420N / SIERRA [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for SG1420N / SIERRA.

List of fault symptoms:
  • No start-up.
  • No start-up from standby.
  • No HV.
  • Normal picture when cold and then a brighter stripe appears in upper picture part on 10cm, which increases severely when warm.
  • PSU pulsates.
  • Poor picture after a certain time. Picture OK when cold.
  • Insufficient blue colour. Yellow tint in picture.
  • Red LED blinks.
  • Error codes.
  • Does not store settings.
  • Enter service mode.
  • Snow with slight white flyback lines, no OSD and no control possible.
  • Comes on for a short time.
  • No functions. LED flashes.
  • One colour missing.
  • Poor picture.
  • Picture fades to horizontal lines.
  • Red LED switches on in standby, but at start-up LED switches off and PSU is noisy.
  • No raster. Horizontal bar in the middle.
  • No picture. Audio OK .
  • Dead. Clicking noise. LED blinks .
  • No picture. Power LED lit .
  • Horizontal tearing and intermittent black and white picture.
  • Line output transistor (2SC5885) keep blowing. Relay click. LED not light after a few secs.
  • Stuck in standby.
  • Slow start-up.
  • Incorrect picture geometry.
  • Squealing from PSU.

If SIERRA SG1420N 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 SIERRA SG1420N fails.


Additionally to repairtips or service information SG1420N is linked to 18 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 SG1420N ).

EURAS system also knows 36 appliances having the same chassis as SG1420N and can easily list them.

In the repair discussion pinboard for SG1420N there are 15 replies to questions asked about 13 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for SG1420N from EURAS technicians or other users.

Do you want to see this remedies/cures for repairtips?   Register here for the EURAS System
Please note: access to the EURAS System can be granted only to professional Video/technicians/household electronics repair shops/TV which are authorized for service by a manufacturer, or can prove to be professionally certified to do repairs on electronic appliances. You will be asked for a statement and information accordingly during registration.

If you do not qualify as stated above and you have an appliance that needs technical service, we do recommend you to contact the manufacturer (for example through his website) or go to a professional Video/household/TV electronics repair shop close to you.

Already registered? open SG1420N SIERRA in EURAS

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Last updated: 07. Oct 2008 02:45:16 MET, doccode ISO9002AS168EKA200805C EURASMOP

Responsible for the content: EURAS International GmbH, Eime, Germany.
All brand- or productnames are copyrighted by the respective manufacturer of the appliance and are only being used for identification purposes.