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EU51ST / TEAC [TV 55 (51) cm picture]
The EURAS repair tip database for professional technicians and service engineers
supplies the following faults for EU51ST / TEAC.
List of fault symptoms:
- Weak contrast. (picture attached)
- Negative picture. (extract of circuit diagram attached)
- BU2508 fails.
- Excessive horizontal size. intermittently. E/W fault. (+ extract of circuit diagram)
- Reduced horizontal size. Pincushion distortion. on sides. (picture attached)
- Switching transistor in primary PSU is S/C.
- Excessive height. Foldover at top. Lines missing at top of picture. Different coloured vertical stripes across picture. (with circuit diagram extract)
- Moire on band 1.
- No start-up from standby. Green led flashes twice then switches to red.
- Compressed picture at the top.
- White, bright screen with flyback lines.
- Bright picture. (picture attached)
- Shuts down (intermittently).
- Low audio. (picture attached)
- White vertical stripes at upper picture edge. Picture becomes blank after a while.
- Goes to standby, when pressing Volume, Mute or Menu buttons.
- No PIP. (with circuit diagram extract)
- BU2508AF is S/C. (extract of circuit diagram attached)
- Power supply blown. (with circuit diagram extract)
- Stretched picture. (with circuit diagram extract)
- No horizontal drive at pin 40 of deflection processor. (picture attached)
- Shuts down. after a few seconds. HV OK. .
- E/W fault. Switches to protection mode.
- Excessive HV. (+ extract of circuit diagram)
- Excessive horizontal size. (extract of circuit diagram attached)
- Reduced E/W on all widescreen scan formats. (part of circuit diagram displayed)
- No line drive. (extract of circuit diagram attached)
- Transformer failure.
- No OSD. (+ extract of circuit diagram)
- No functions. Standby LED flashes .
- Adjustments in service menu.
- Switches off from standby, LED is briefly green, then goes back to red.
- No function. PSU is dead.
- Vertical foldover at top and bottom. (with circuit diagram extract)
- Picture too small.
- Switches to standby at switch on, LED turns green for a sec.
- Shuts down. after start-up.
- E/W fault. Screeching noise. Line output transistor fails repeatedly. (service info for TEAC -EU51ST)
- Occasionally slight flashover in the picture.
- IC (TDA6108JF) fails after 12 hours operation. (TEAC - EU51ST information)
- No luminance. (extract of circuit diagram attached)
- Line BU transistor becomes hot. (service info for TEAC -EU51ST)
- Shuts down (after a few seconds).
- No picture in PIP mode. (part of circuit diagram displayed)
- Picture is OK, but it is necessary to readjust G2 at each start-up, otherwise screen becomes black.
- No picture (dark with barely visible spots). (picture attached) (EU51ST TEAC repair tip)
- Picture collapses intermittently with E/W fault. White line in the middle. Sound crackles.
- Line output transistor and TDA4605 is also defective.
- Does not always switch on. Pumps after switch on.
- Green picture. Flyback lines.
- No start-up from standby. LED flickers .
- S/C in mains transformer. (with circuit diagram extract)
- Horizontal line. in the centre. (+ extract of circuit diagram)
- Appliance goes to standby if switched on with RC. Standby LED flashes green.
- Channel shifts after station is changed. After retuning, everything is OK.
- Switches to standby. after a few seconds. LED is green.
- Black screen with three colour lines. Sometimes half a picture appears.
- R809 blown. (picture attached)
- Low contrast.
- Standby OK, green LED flashes twice briefly after start up attempt and goes to standby.
- Switches to standby. after a few seconds. (+ extract of circuit diagram)
- Clicking noise. (with circuit diagram extract) (EU51ST tips)
- No picture. after warm-up. Audio OK .
- Slow start-up. (with circuit diagram extract)
- No horizontal deflection. (extract of circuit diagram attached)
- No front panel function.
- Line BU508A fails again immediately.
- LED blinks green.
- Blue picture, no drive. Sound OK.
- Dead. LED blinks .
- Reduced horizontal deflection. Reduced vertical deflection. Vertical foldover. at top and bottom. (EU51ST tips)
- Does not accept SCART input. (with circuit diagram extract)
- Q802 is S/C. (extract of circuit diagram attached)
- No deflection. Switches on with RC, display changes to green. Standby display available.
- Excessive blue. (extract of circuit diagram attached)
- PSU ticks in standby and hisses in full load mode.
- Vertical collapse. after a few minutes. Flyback lines. on upper half screen. (+ extract of circuit diagram)
- Picture shifted vertically. at bottom.
- Stuck in standby. Squealing from PSU.
- No tuning. Poor synchronisation. Shifted phase.
- Switches to standby intermittently. Comes on with RC but switches off after a while. (EU51ST tip from TEAC)
- R914 is defective. (+ extract of circuit diagram)
- Black edges on top and at the bottom. Picture is available though all adjustments are set to minimum. Cannot be adjusted and no storage. (TEAC - EU51ST information)
- Dead. LED is green.
- Blue screen.
- No TXT (intermittently). (with circuit diagram extract)
- Mains transistor fails immediately again.
Netztransistor stirbt sofort wieder
- Pincushion distortion. (picture attached)
- Line transistor blown shortly after switch on. (picture attached)
- Picture reduced horizontally in 16/9 and 4/3 mode.
- Blurry picture. (with circuit diagram extract) (EU51ST tip from TEAC)
- No TXT just number 100 in the left corner.
- Narrow, bowed picture. E-W faulty.
- Low HT. (picture attached)
- LED blinks, then switches to standby.
- No horizontal or vertical deflection (intermittently).
- No picture. intermittently (after a while). Faulty TXT.
- Intermittent picture and audio or does not find channels.
- No start-up. LED turns green then switches back to red when RC command is sent.
- No audio. in NICAM .
- Switches to standby when picture appears or picture pulsates slowly via AV or at low brightness.
- Tripping. at start-up.
- Picture too large. E/W defective.
- No picture. Bright raster (after a few minutes). (+ extract of circuit diagram)
- No picture. No OSD. Audio OK . (with circuit diagram extract)
- No colour. (picture attached)
- Relay trips. (+ extract of circuit diagram)
- No audio in SECAM L mode.
- Clicking noise. in standby. (part of circuit diagram displayed)
- Vertical fault.
- Picture in only one colour with flyback lines.
- No start-up. Standby LED lit .
- PSU pulsates. Switches to standby. after a while.
- Hum bar. No RC functions. (extract of circuit diagram attached) (service info for TEAC -EU51ST)
- At power up green LED is on for 2 secs, then flickers, set goes to standby. (part of circuit diagram displayed)
- Distorted picture (N/S), like in 16:9 format. Bars on top and at the bottom. (EU51ST tips)
- Grey picture with flyback lines.
- No start-up from standby. LED is red .
- Noise from PSU. Strong hiccup. (part of circuit diagram displayed)
- Vertical collapse. (with circuit diagram extract)
- No adjustments are possible.
- Flickering picture. Bent verticals. (with circuit diagram extract)
- Dead. Standby LED flashes . (picture attached)
- Appliance fails and can only be started after a long time.
- Reduced horizontal size. Audio OK .
- Slightly cramped blank raster with flyback lines. In centre of raster there are coloured lines, slight E/W bow. (with circuit diagram extract)
- No HV. (+ extract of circuit diagram)
- Vertical collapse (intermittently).
- Tripping. LED blinks .
- R717 (2K2) burnt repeatedly.
- Horizontal line.
- No front panel function. RC OK.
- Whistling.
- Flyback lines. (picture attached)
- Wavy picture. on sides.
- No video signal on screen, picture dark, OSD display OK.
- To avoid anode voltage peaks. (part of circuit diagram displayed)
- Comes on in standby, then if power button pressed blinks pale green.
- Piecrusting in picture.
- IC802 (MC44604P) fails repeatedly.
- E/W fault. (extract of circuit diagram attached)
- Enter service mode.
- Vertical lines. (+ extract of circuit diagram)
- Over/under scan.
- Dead. Standby LED does not light. (picture attached)
- Insufficient height, about 3" down at top.
- E/W fault (after a while).
- Clicking noise. after start-up. (with circuit diagram extract) (TEAC - EU51ST information)
- Excessive horizontal size. Pincushion distortion. on sides. (with circuit diagram extract)
- White screen. (with circuit diagram extract)
- No startup. LED lights up at switch-on.
- Intermittently Q605 blown. (picture attached)
- Bright horizontal stripes.
- BU2508AF fails intermittently. (picture attached)
- Black screen.
- PSU pulsates. LED blinks . (picture attached) (TEAC - EU51ST information)
- Picture twitches. Horizontal cogging.
- Takes long time to appear. Comes up quicker if first anode control adjusted. (extract of circuit diagram attached)
- Leaking in HT transformer.
- BU2508D fails immediately at switch on. (EU51ST tip from TEAC)
- Ticking noise from speaker in standby (Burst mode). (extract of circuit diagram attached)
- Blank raster.
- Picture appears briefly but resorts to four horizontal lines. Sound OK. (+ extract of circuit diagram)
- Tuning drifts. (+ extract of circuit diagram)
- Disable hotel mode.
- No start-up. LED is red after operating mains switch. If switched on (via program key on user control or RC) LED lights green and then goes off. (EU51ST TEAC repair tip)
- Switches to protection mode (after a while).
- Reduced horizontal size. Standby LED flashes .
- Tripping sound from power supply. (part of circuit diagram displayed)
- Poor East/West correction. (with circuit diagram extract) (service info for TEAC -EU51ST)
- Picture size varies with picture content.
- Picture collapses. Shock sensitive.
- LED lights briefly green after switch on. PSU starts up but appliance goes back to standby.
- White screen. Retrace lines. (with circuit diagram extract)
- Washed out picture. (part of circuit diagram displayed)
- Line output transistor fails repeatedly.
- No vertical deflection. (picture attached)
- Picture too small. Distorted picture. (picture attached)
- No signal (intermittently).
- No picture (intermittently).
- Shuts down after start up. Led blinks red/green a few seconds.
- Picture shifted to the right. No colour. (extract of circuit diagram attached)
- Reduced vertical and horizontal size. (+ extract of circuit diagram)
- Goes off with a bang and bright light from the inside.
- No functions. when cold.
- Ripple on verticals.
- Power supply fails. Loud noise in the chopper.
- Power supply problems.
- Standby is red and becomes green for 2 secs after switch on.
- Pulsating picture. Shuts down. (with circuit diagram extract)
- Shuts down. intermittently. Burning smell.
- Bent verticals.
- No picture, no sound. Standby diode flashes briefly green at switch on.
- Picture quivers depending on brightness.
- White retrace lines on screen. (extract of circuit diagram attached)
- Excessive operating voltage.
- Chirping. at start-up. Trips. (with circuit diagram extract)
- Dark picture. (+ extract of circuit diagram)
- Dark picture with three coloured lines in upper third. Sound OK. (extract of circuit diagram attached)
- Picture flickers with 3 coloured lines in upper side of picture. (EU51ST TEAC repair tip)
- Bright green raster with flyback lines. (with circuit diagram extract)
- Spots in picture. in the centre. (+ extract of circuit diagram)
- Horizontal lines.
- HV sparkling. (+ extract of circuit diagram)
- No E/W correction.
- Voltage Usys is only 35V.
- No contrast. at start-up.
- Chopper transformer fails.
- Severe picture bowing after a minute or so.
- PSU blown.
- No tuning. (part of circuit diagram displayed)
- Poor picture. (part of circuit diagram displayed)
- PSU pulsates quickly, audible via speaker. (extract of circuit diagram attached)
- Dark picture. Raster OK .
- Flyback lines. at top. (part of circuit diagram displayed)
- Audio output chip IC100 fails repeatedly.
- Picture appears for several secs, then becomes dark and switches to protection. Sound OK.
- Snowy raster. Reduced width. No tuning. Unable to access SERVICE mode. Locks up if picture menu entered.
- Defective Q605 (BU508AF) line output transistor. (+ extract of circuit diagram)
- LED flickers. Light rhythmical noise, otherwise no function.
- Reduced vertical size.
- Colour varies. Flickering picture. (part of circuit diagram displayed)
- Picture width is too low and perhaps smoke develops. (extract of circuit diagram attached)
- Does not switch to standby.
- Snow in picture. (extract of circuit diagram attached)
- Vertical end stage line.
- Dead. Power LED lit . (extract of circuit diagram attached) (service info for TEAC -EU51ST)
- Stuck in standby. (picture attached)
- Dark picture. Colour varies. Colour flickers.
- Faulty OSD. (with circuit diagram extract)
- Dead. (picture attached)
- Blank screen with 3 coloured (R G B) lines across screen.
- No start-up. Standby LED tries to go green then goes back to red.
- Picture foldover. Switches to standby.
- No functions. LED is green.
- Red standby light changes to green then switches back to red.
- Black screen. Audio and OSD OK .
- Burst electrolytic capacitor C829 (47uF/160V).
- No start-up. LED is red . Clicking noise. (+ extract of circuit diagram)
- Low brightness. (service info for TEAC -EU51ST)
- Locking codes misfunctioning.
- PSU pulsates. (extract of circuit diagram attached)
- Distorted sound. Volume cannot be adjusted.
- Grey screen. Audio OK .
- Reduced horizontal deflection.
- Slow start-up. No start-up. intermittently.
- Programs are not stored after switch off.
- Dark picture. OSD OK .
- Ticking noise. No start-up. (+ extract of circuit diagram)
- D611 fails. Q605 becomes hot.
- Line output stage (BU2508D) fails. R629 (2R7) burnt.
- Picture lost, then screen is black and RGB test lines moving in top half of screen.
- After start-up front LED is red, becomes green shortly and then red again. Dummy load lamp lights up shortly and then goes out.
- Moire or line in picture with some band 1 stations (eg. channel 4) on certain aerial equipment.
- E/W fault. intermittently.
- No picture. Audio OK . (picture attached)
- Excessive brightness. Flyback lines. (with circuit diagram extract)
- Stuck in standby. Green LED flashes .
- Tripping. (picture attached)
- Standby LED flashing green. (+ extract of circuit diagram)
- Picture and sound interference.
- No functions. (picture attached)
- No or poor synchronisation. (+ extract of circuit diagram)
- Blank raster with 2 red, green and blue horizontal lines, approx one third down screen. (extract of circuit diagram attached)
- Sizzling at start-up.
- Operates in short bursts.
- Only one primary colour with flyback lines.
- Slight flicker after five mins, worsens as time goes on. Colour flickers ON/OFF. (extract of circuit diagram attached)
- Black stripes in white picture areas.
- PSU transistor fails at start-up. (extract of circuit diagram attached)
- No picture. Raster appears at start-up.
- No TXT. (part of circuit diagram displayed)
- PSU pulsates. in standby.
Tips are coming from EURAS customers, workshops and payed technicians from all over the world. TEAC EU51ST fails can be better solved. If TEAC EU51ST 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 EU51ST fails.
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Additionally to repairtips or service information EU51ST is linked to 166 components (IC's and/or transformers) in the Tectra
database, through which you can identify electrical compatibilities (crossreferences) in
appliances.
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Chassis information is available (which chassis is built in into EU51ST ).
EURAS system also knows 476 appliances having the same chassis as EU51ST and can easily list them.
In the repair discussion pinboard for EU51ST there are 114 replies to questions asked about 86 different repair problems. With access to EURAS you can all read them or enter your own questions and get help for EU51ST 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
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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 EU51ST TEAC in EURAS
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Last updated: 07. Oct 2008 18:06:17 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.
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