EURAS System
   EURAS worldwideeuras.com    
EURAS System

EU684F / TEAC [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for EU684F / TEAC.

List of fault symptoms:
  • No luminance.
  • Stripes in upper picture.
  • Trips. after start-up.
  • Mains fuse blows sporadically. (service info for TEAC -EU684F)
  • No TXT. (TEAC - EU684F information)
  • Tripping at switch-on. Popping noise from speakers.
  • Switches to standby. intermittently.
  • PSU does not start up correctly.
  • No functions.
  • Reduced horizontal size. No E/W correction.
  • Line output transistor fails repeatedly.
  • No picture (intermittently). Audio OK .
  • Top quarter of screen is lit. Rest of screen is black.
  • Beeps now and again.
  • Flyback lines appears when brightness increased.
  • Brightness varies.
  • No start-up from standby. LED is red when switching.
  • Flyback lines. after warm-up.
  • No picture. Red, green or blue raster. (TEAC - EU684F information)
  • No tuning.
  • Tripping.
  • Horizontal line.
  • Poor picture.
  • White picture with flyback lines from time to time.
  • PSU pulsates. Standby LED flashes . (EU684F tip from TEAC)
  • No raster (intermittently).
  • Picture gradually disappears after start-up. Flyback lines, poor picture content. (service info for TEAC -EU684F)
  • No vertical deflection. on lower half screen.
  • Power supply blown. Mains fuse black. Possible lightning strike.
  • No picture. intermittently. OSD OK .
  • No picture. Audio OK .
  • Poor picture, exaggerated contrast and colours, brightness varies. (TEAC - EU684F information)
  • No picture, only snow.
  • Dark picture. (EU684F TEAC repair tip)
  • Noise on some channels.
  • Flyback lines.
  • PSU blown after power failure.
  • PSU pulsates.
  • Low tuner gain but can be tuned in. (TEAC - EU684F information)
  • R528, R530 and C524 defective. (EU684F tips)
  • No 8V and 5V voltages.
  • Vol up/down buttons change program number.
  • No REC.
  • HV builds up and then collapses.
  • No power.
  • How to test the PSU using a lamp.
  • Switches to protection mode. after start-up.
  • B+ voltage (+140V) missing.
  • No picture. intermittently. Audio OK . (TEAC - EU684F information)
  • Snow in picture.
  • Brightness varies. intermittently.
  • +B voltage is 160V instead 145V.
  • Dead.
  • Dead. Standby LED does not light.
  • Coloured spots on the corner. (EU684F TEAC repair tip)
  • Red and green area on every side of the screen when warm.
  • Basic features.
  • Trips. at start-up.
  • Low contrast.
  • Squealing noise.
  • Blurry picture.
  • Horizontal output transistor fails repeatedly.
  • Volume decreases to min.
  • Pulsating picture. Picture shrinks horizontally and expands vertically when changing brightness. (EU684F TEAC repair tip)
  • Picture comes in after approx 1 min when started up from standby. (TEAC - EU684F information)
  • Cycles on/off. Knock sensitive.
  • Picture rolls.
  • Vertical collapse.
  • Fuse (2.5A) is intermittently defective.
  • C530 fails repeatedly.
  • Stuck in standby. Tripping noise at first switch-on.
  • Mains fuse is defective.
  • Geometry adjustments.
  • Stretched picture. intermittently.
  • No picture or sound via AV1. AV2 and AV3 ok.
  • Not storing programme data.
  • Picture shifts.
  • Upper part of picture is fuzzy and messed up, after was powered off for a few hours.
  • Horizontal line. Black screen. on lower half screen.
  • Horizontal collapse. intermittently.
  • AGC adjustment.
  • No audio.
  • Picture size varies with picture content. (TEAC - EU684F information)
  • No focus.
  • No 15V, 8V and 5V voltages.
  • Flyback lines. intermittently.
  • Squealing from PSU (intermittently).
  • Cracking noise in standby.
  • No picture. intermittently.
  • PSU pulses and there is popping from the speakers before set trips back to standby.
  • Poor picture. after start-up.
  • Black screen. after a few seconds.
  • Switches to standby. intermittently. No start-up from standby. intermittently.
  • PSU collapses and trips as soon as appliance is swichted to full mode. Standby OK. (EU684F TEAC repair tip)
  • Excessive brightness. Flyback lines.
  • Trips.
  • Set trips at switch on.
  • +B voltage is 20-80V instead 145V.
  • No start-up.
  • No picture.
  • No AV. (service info for TEAC -EU684F)
  • Vertical lines. (service info for TEAC -EU684F)
  • No RC functions.
  • Volume increases to max. (service info for TEAC -EU684F)
  • Tuning drifts.
  • No start-up from standby.
  • No vertical deflection. Only a horizontal line at top.
  • C619 burned.
  • No audio. No game. No calculator. (EU684F tip from TEAC)
  • Switches channels automatically upwards. Maximum volume.
  • Popping noise when switched off.
  • Some channels missing.
  • No HV.
  • Protection mode activated. in standby.
  • Changes picture size when increasing audio volume. (EU684F tips)
  • PSU lamp test.
  • Reduced vertical size. Vertical foldover. when cold.
  • Line tearing. intermittently. Squealing noise.
  • Slow start-up.
  • Distorted audio. via speakers.
  • No synchronisation. No TXT.
  • Poor focus.
  • Switches off by itself.
  • Shuts down (intermittently). (EU684F tip from TEAC)
  • No picture. on lower half screen. (EU684F TEAC repair tip)
  • Stuck in standby.
  • Picture shifted to the left about 1 inch.
  • Switches to standby at start-up. LED flashes 2 times. (service info for TEAC -EU684F)
  • Spots on the screen during shut off.
  • White balance adjustment.
  • Enter service mode.
  • White lines.
  • Black dots on the screen.
  • No vertical deflection.

Tips are coming from EURAS customers, workshops and payed technicians from all over the world. TEAC EU684F fails can be better solved.

If TEAC EU684F 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 TEAC EU684F fails.


Additionally to repairtips or service information EU684F is linked to 60 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 EU684F ).

EURAS system also knows 745 appliances having the same chassis as EU684F and can easily list them.

In the repair discussion pinboard for EU684F there are 69 replies to questions asked about 79 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for EU684F 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 household electronics repair shops/technicians/TV/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 household/TV/Video electronics repair shop close to you.

Already registered? open EU684F TEAC in EURAS

All details on the EURAS System: English | Deutsch | Français | Italiano | Español | Magyarul | Português | Polski | Română | Greek |


Back to EURAS Homepage >> All manufacturers >> TEAC tech tips  












Last updated: 14. Oct 2008 01:14:59 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.