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21B7T02TX / SANG [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for 21B7T02TX / SANG.

List of fault symptoms:
  • No blue.
  • PSU is defective.
  • White balance adjustment.
  • Switches to standby.
  • Switches to protection mode.
  • White flyback lines.
  • Geometry adjustments.
  • No horizontal synchronisation.
  • Blows fuse.
  • No start-up. Standby LED lit .
  • Vertical fault. at top.
  • Vertical fault.
  • Dark picture.
  • Only standby, pulsates after switch on.
  • Disable hotel mode.
  • Switches to standby. after a few seconds.
  • No colour.
  • No start-up.
  • Enter service mode.
  • White screen.
  • Faulty OSD or poor colours.
  • Enable Hotel mode.
  • Black lines on the picture. OSD displays jitter. TXT does not function or does not synchronise. Picture and sound present.
  • Wrong colours on corners.
  • Enable child lock.
  • Stuck in standby. Pressing "Progr" keys comes in, then reverts immediately back to standby.
  • No synchronisation.
  • Disable child lock.
  • No channels.
  • Intermittent failure T506. No apparent cause.
  • No picture. Audio OK .
  • Switches by itself to AV, info menu is intermittently distorted. No front controls.
  • Sound standard adjustment.
  • Screen adjustments.
  • Power supply voltage adjustment. (with circuit diagram extract)
  • No AV.
  • Picture shifted horizontally.
  • No or poor audio.
  • No picture. at bottom. Vertical fault.
  • Horizontal lines. intermittently. (SANG - 21B7T02TX information)
  • PSU pulsates (after start-up).
  • Horizontal line. (21B7T02TX tip from SANG)
  • No tuning. No red LED.
  • Dead. LED blinks .
  • Flickering picture. in TXT.
  • No power.
  • Intermediate frequency adjustments - SECAM LL' standard. (extract of circuit diagram attached)
  • Vertical synchronisation fault in OSD. Picture and functions OK..
  • No OSD.
  • No UHF channels.
  • Stuck in standby.
  • Vertical collapse.
  • No colour (intermittently).
  • Reduced vertical size. (service info for SANG -21B7T02TX)
  • Switches on but no user controls or RC.
  • Red picture.
  • Vertical error. Reduced and distorted picture amplitude.
  • OSD shifted.
  • Picture too small. Picture runs through.
  • Flickering picture.
  • No picture.
  • Only a white line.
  • Brightness varies.
  • Whistling.
  • Only AV operation possible. No tuner reception.
  • Shuts down.
  • Tripping.
  • Intermediate frequency adjustments - BG, DK, I standard. (+ extract of circuit diagram)
  • No audio.
  • Dark screen. Audio OK .
  • How to change SYSTEM MODE DKK.
  • Flyback lines.
  • Standby flashes, if ON briefly high voltage, then standby again.
  • Intermittently picture is dark/green, no sync, no audio, no tuning.
  • Restore factory settings.
  • Picture is too wide. Width changes depending on beam current.
  • Snow in picture.
  • Pincushion distortion.
  • No line drive. Standby LED lit .
  • Dead.
  • Menu flickers.
  • Shading at top when adjusting to 16:9 mode.
  • Low contrast.

When SANG 21B7T02TX 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 21B7T02TX fails can be better solved.

If SANG 21B7T02TX 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 21B7T02TX fails.


Additionally to repairtips or service information 21B7T02TX is linked to 37 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 21B7T02TX ).

EURAS system also knows 428 appliances having the same chassis as 21B7T02TX and can easily list them.

In the repair discussion pinboard for 21B7T02TX there are 32 replies to questions asked about 21 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for 21B7T02TX 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/TV/household electronics repair shops/technicians 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 household/TV/Video electronics repair shop close to you.

Already registered? open 21B7T02TX SANG in EURAS

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Last updated: 11. Oct 2008 12:43:08 MET, doccode ISO9002AS168EKA200805C EURASMOP

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