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CTW2850S1 / TEAC [TV 16:9 70 (66) cm picture]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for CTW2850S1 / TEAC.

List of fault symptoms:
  • Line output transistor S/C at start-up.
  • Low HT intermittently, followed by tripping.
  • Brightness varies. No RC functions. intermittently. Shuts down. intermittently.
  • Horizontal output transistor fails repeatedly.
  • Beeps shortly at start-up, then no function. LED dead.
  • Pincushion distortion. Excessive horizontal size.
  • Vertical jitter.
  • Coloured lines when changing channels. Incorrect geometry.
  • PSU whistles at switch on. No other functions.
  • Ticking noise. LED blinks .
  • No vertical synchronisation.
  • Enter service mode.
  • Tripping.
  • Wite bright lines on upper picture edge.
  • No picture. Black screen.
  • Q602 fails repeatedly.
  • No start-up (when cold).
  • PSU blow-up.
  • PSU tripping loudly.
  • Dead. intermittently.
  • L601 overheats.
  • No picture. No audio.
  • Excessive horizontal size. E/W fault.
  • Switches to standby. No picture.
  • No vertical deflection.
  • No picture or just a vertical line.
  • Switches to standby (after start-up).
  • No start-up. Red LED blinks.
  • Q100 and Q102 fail repeatedly.
  • No start-up. Standby LED is red. Green light shows briefly then switches to standby when switching.
  • Switches to standby.
  • Dead.
  • Standby PSU is defective.
  • Transistor BU2508AF fails after 1 min.
  • Reduced horizontal size (at start-up). Excessive horizontal size (after warm-up).
  • Electrolytic capacitor C116 becomes hot and defective.
  • Comes out of standby with green LED on and after 5 secs switches to standby with red LED on.
  • Shuts down. (CTW2850S1 tip from TEAC)
  • Switches to standby after start-up. EHT rustle.
  • Tripping. LED blinks .
  • E/W fault.
  • Horizontal roll.
  • Frame output IC600 fails repeatedly.
  • Switches intermittently to standby. Ok in test mode.
  • No start-up.
  • No RC functions.
  • Interference in picture.
  • No start up. PSU ticks. LED switches every second. Switches on and off.
  • Stuck in standby. LED blinks .
  • Trips. Standby LED does not light.
  • No start-up from standby.
  • Intermittent start-up. Ticking noise in standby. LED is green then red.
  • No vertical deflection (intermittently).
  • Noise from SMPS while in standby.
  • No horizontal synchronisation.
  • LED is green for a short time and then switches off.
  • Reduced vertical size.
  • Shuts down. after start-up.
  • Switches to protection mode.
  • Tripping. after start-up. Red LED blinks.
  • PSU ticking.
  • No picture. Audio OK .
  • No functions. (CTW2850S1 tips)
  • Flyback lines. Coloured lines. at top.
  • Poor picture. Low brightness. Low contrast.
  • Distorted E/W. Low height. Picture has shifted downwards.

With help of this list a solution is found often when TEAC CTW2850S1 fails.


Additionally to repairtips or service information CTW2850S1 is linked to 62 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 CTW2850S1 ).

EURAS system also knows 53 appliances having the same chassis as CTW2850S1 and can easily list them.

In the repair discussion pinboard for CTW2850S1 there are 87 replies to questions asked about 45 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for CTW2850S1 from EURAS technicians or other users.

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Please note: access to the EURAS System can be granted only to professional TV/technicians/household electronics repair shops/Video 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 CTW2850S1 TEAC in EURAS

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Last updated: 14. Oct 2008 01:34:28 MET, doccode ISO9002AS168EKA200805C EURASMOP

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