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PS27108 / PROSCAN [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for PS27108 / PROSCAN.

List of fault symptoms:
  • Bright goes to dim picture.
  • No vertical synchronisation (intermittently).
  • Red picture. intermittently.
  • No audio. No picture. Dark screen.
  • Snow on channels 2-50.
  • Picture goes to snow after warm-up.
  • Menu red with faded black characters.
  • Brightness varies. Possible loss of sync.
  • No channel storing.
  • No PIP.
  • Intermittently switches off. May come back on automatically.
  • No picture. (PS27108 PROSCAN repair tip)
  • Picture pulls in on sides.
  • Low negative vertical line.
  • OSD shifted.
  • Changes channels. Locks up.
  • Can't program remote for cable box or other manufacturer brands of VCR.
  • Snow in picture.
  • No start-up (intermittently).
  • No voltage to EEPROM. (PS27108 tip from PROSCAN)
  • Shuts down (intermittently).
  • No PIP, but word "PIP" is displayed on-screen when PIP is on.
  • Pincushion distortion. Reduced horizontal size (when changing channels).
  • Intermittent picture - intermittent snow
  • Snowy VHF hi-band. Low bands OK.
  • No vertical deflection.
  • Snowy picture, or no h-sync.
  • Menu rolls vertically.
  • Red picture (after warm-up).
  • Enter service mode.
  • Intermittently vertical height is down from top. Tapping effects.
  • Q4401 shorts repeatedly.
  • Intermittent loss of picture. When picture goes, time and channel appear. (service info for PROSCAN -PS27108)
  • Poor pincushion. Picture stretched.
  • Shadows in picture.
  • Bright raster. Retrace lines.
  • Convergence off. Lines too wide.
  • Vertical comes down from top. Tapping affects.
  • Repeated failure of EEprom. (PS27108 tip from PROSCAN)
  • AGC problems.
  • Low level hum in audio.
  • Bright picture, pulled in on sides.
  • No OSD.
  • Reduced vertical size at top. Snow in picture. intermittently. Shuts down.
  • Width narrow. No pincushion adjustment.
  • No OSD. No user menu.
  • Vertical roll. OSD OK .
  • Intermittent snowy picture. Vertical down from top. Shutsdown.
  • No channels 34-50.
  • No picture. after a while. (service info for PROSCAN -PS27108)
  • Only receives channels 52+ in cable mode.
  • Channel 50 off frequency. All others are OK.
  • Top third of picture has retrace lines.
  • No tuning.
  • OSD is very bright.
  • Width problems.
  • Picture tube troubleshooting.
  • No operation. intermittently.
  • No OSD. No change in voltage at pin 39 of U1001.
  • Intermittent vertical picture
  • Menus automatically appear and select functions.
  • Reduced horizontal deflection.
  • Snowy picture up to channel 52.
  • Interference, co-channel. (PROSCAN - PS27108 information)
  • Vertical stretched. Horizontal line.
  • Brightness erratic.
  • No HV.
  • Vertical, horizontal roll. No OSD.
  • Intermittent conditions all functions
  • Starts 3 times then shutsdown. HV rises to 2kV before shutdown.
  • No picture. Audio OK .
  • Channels 7-13 inoperable; channels 2-6, 14-17 and 52-96 OK.
  • Squealing noise (intermittently).
  • Intermittent colour.
  • Picture stretches & is snowy
  • Intermittently shuts off or power up.
  • Blue smear in picture.
  • No start-up.
  • No horizontal deflection.
  • Cycles on/off. Shuts down (after a while).
  • Picture snowy on most channels.
  • Honeycomb pattern in background. Disappears when colour off.
  • Menu smeared.
  • C4107 blows repeatedly.
  • No picture (intermittently).
  • Picture overloads at strong signals.
  • Buzz. Hourglass picture. (PS27108 tips)
  • Intermittent horizontal lines across screen after 10 mins.
  • Picture cuts out intermittently. Video and OSD OK.
  • Picture washed out. Video ringing.
  • Intermittent loss of reception.
  • No closed captioning using S-video input.
  • Pincushion distortion.
  • Dead.
  • Red, blue, or green smears on words/edges.
  • No colour. Blurry picture.
  • High band out. Band switching incorrect at Q7402.
  • Pincushion distortion. on sides.
  • Streaks in display background. Video OK. (PS27108 tips)
  • No tuning (after warm-up).
  • Brightness effects picture size.
  • Shuts down. intermittently.
  • Green line across screen - no vertical
  • Cycles on/off.
  • Intermittent SAP operation.
  • Dark picture (after a few minutes).
  • Narrow on all sides. Width and height vary with change of scene.
  • Vertical roll.
  • No blue or yellow raster. (PS27108 tips)
  • Distorted audio.
  • Intermittently dead.
  • Excessive horizontal size.
  • Dead. Clock OK.
  • Squealing from PSU.
  • Narrow picture and hourglass effect.
  • Right side of the screen is pulled in when channels changed.
  • Dead, when power button is pushed sets relay clicks ON then OFF. It repeats this on its own 3 - 4 times then ceases all activity.
  • Line output transistor fails repeatedly.
  • No tuning (only snow).
  • No small picture in PIP mode.
  • Bars in picture. (PS27108 tips)
  • After 1 min, picture pulls in approx 3ins on sides and bottom.
  • Snowy, noise, bad reception. (PS27108 PROSCAN repair tip)
  • Intermittent snowy E-E picture. Tapping effects.
  • No VHF channel reception.
  • Loss of one colour or smudged to right.

With help of this list a solution is found often when PROSCAN PS27108 fails.

Chassis information is available (which chassis is built in into PS27108 ).

EURAS system also knows 83 appliances having the same chassis as PS27108 and can easily list them.

In the repair discussion pinboard for PS27108 there are 10 replies to questions asked about 5 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for PS27108 from EURAS technicians or other users.

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Last updated: 05. Sep 2008 06:37:52 MET, doccode ISO9002AS168EKA200805C EURASMOP

Responsible for the content: EURAS International GmbH, Eime, Germany. All rights reserved, EURAS database V2.0 (C) 2002-2008. All brand- or productnames are copyrighted by the respective manufacturer of the appliance and are only being used for identification purposes.