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CT5593 / FIRSTLINE [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for CT5593 / FIRSTLINE.

List of fault symptoms:
  • Image has green glimmer and overdrive. (with circuit diagram extract) (CT5593 FIRSTLINE repair tip)
  • No TXT.
  • Excessive brightness. Flyback lines.
  • Insufficient width and corrugated verticals.
  • Dark picture. Audio OK .
  • Tripping.
  • Trips at 1HZ, chirping sound.
  • No picture. via SCART. Audio OK .
  • No picture, no sound. When unplugging and plugging back in to mains, it turns on immediately. (with circuit diagram extract)
  • Line tearing. Reduced horizontal size. (service info for FIRSTLINE -CT5593)
  • Stuck in standby (intermittently).
  • Vertical collapse.
  • Black screen with 2 colured lines visible at the top of the screen. (+ extract of circuit diagram)
  • Dark picture.
  • Adjusting the colour.
  • No picture. No sound. Red LED lights. No start-up with RC.
  • F801 blown.
  • No energy transfer to secondary side of PSU. (extract of circuit diagram attached)
  • Severe picture curling (coding effect).
  • Picture only approx 2cm high. No reception
  • At switch on black band 10 cm from the top of the screen disappearing little by little or when reducing the brightness. (+ extract of circuit diagram)
  • Muted audio. (extract of circuit diagram attached)
  • Picture appears late with blotches. Low horizontal size.
  • No e.h.t. and no tube heater supply.
  • Takes a long time to come on and when it does the picture rolls or teletext characters appear at random.
  • Blank raster. intermittently. (CT5593 tip from FIRSTLINE)
  • No EHT or heater.
  • Picture has collapsed at the side, lines ragged in part.
  • Intermittent faults ranging from text problems to going dead.
  • No vertical deflection. Black screen.
  • Adjusting the white BRP.
  • NICAM module.
  • No picture. If adjusting brightness control, screen display reacts correctly, but picture brightness does not increase at all.
  • Insufficient height and wavy vertical elements (or sawtooth peaks) in picture.
  • Vertical deflection has failed. Line width approx 1 cm.
  • Adjusting U1 (stabilised).
  • Picture too small.
  • Reduced vertical deflection.
  • Difficult start up; narrow frame; power supply is low.
  • Excessive line pulling and tearing or bent verticals with lack of width.
  • No HV.
  • No voltage.
  • R801 (2R2/5W) O/C and TR801 (BU508A) S/C.
  • Adjusting the horizontal oscillator.
  • One channel missing, probably NICAM.
  • Adjusting the G2.
  • No picture. (service info for FIRSTLINE -CT5593)
  • Audio stages. (CT5593 tips)
  • Colour adjustment (black).
  • No sound, no picture. When pushing the G2 a 5cm high white line appears. (with circuit diagram extract)
  • Adjusting the audio trap.
  • No functions.
  • Picture has collapsed at the sides and lines are frayed. (FIRSTLINE - CT5593 information)
  • Loss of channel memory after a few days.
  • Reduced horizontal size. Torn picture.
  • Video demodulator AFC adjustment.
  • No raster after power supply fault (Z 12V).
  • No line drive.
  • Various intermittent functions.
  • No raster.
  • No picture in AV.
  • Power supply. (CT5593 tip from FIRSTLINE)
  • Dead.
  • Bright white with flyback lines. (+ extract of circuit diagram)
  • No start-up. (extract of circuit diagram attached)
  • No manual operation.
  • Colour decoder, chroma path.
  • Slow start-up.
  • Reduced vertical size.
  • Switches off by itself. intermittently.
  • Adjusting the geometry and focus.
  • No OSD. (FIRSTLINE - CT5593 information)
  • When changing channels, pumping or flickering of the picture for 2 or 3 seconds according to the strength of the HF signal. (+ extract of circuit diagram)
  • No EHV.
  • Switches to mono on some picture scenes or channel changes. (+ extract of circuit diagram)
  • Multicomponent failure. TR801 S/C and R801 O/C. (extract of circuit diagram attached)
  • Permanent display on Screen. Full volume and brightness. (CT5593 FIRSTLINE repair tip)
  • Dead, brief rustle of EHT.
  • Narrow dull picture and line tearing with cogging effect.
  • Horizontal jitter. Squealing from PSU.
  • Intermittently no picture and one colour.
  • Brightness control not working though the on-screen display says that it is.
  • No picture. No audio.
  • No picture. Dark screen. Sound OK.
  • Vertical line on LHS of screen about 3 inches in from the side.
  • Bright raster. Flyback lines.
  • Low level mono sound, NICAM OK.
  • Blue background.
  • Picture flashes for a few seconds at channel switch-over.
  • After approx 5 mins picture disappears occasionally then reappears. Then appliance can no longer be operated by the RCU. After switching on and off, the fault repeats once more.
  • Snow. No channels.
  • Uncontrollable HT. (+ extract of circuit diagram)
  • No line drive. Audio OK .
  • No or low energy output. Transformer squealing and TR801 hot. (with circuit diagram extract)
  • Switches to standby. intermittently.
  • Horizontal buzz in the picture.
  • No picture and no sound. OK with RC.
  • Dark screen. (CT5593 FIRSTLINE repair tip)
  • Bright picture. Flyback lines.
  • Switches off when any button is pressed.
  • White line in the middle of screen. Sound OK.
  • No 12V supply.
  • Red fuse blown.
  • 3cm wide line in the middle, sound and picture present
  • Adjusting the FM demodulator.
  • No functions from RC. Black screen. Starts up correctly from standby using RC.
  • Blank screen. after a while.
  • Squealing from PSU.
  • Distorted picture via HF, via scart perfect picture and sound.
  • No channel change and no sound. Standby function does not respond.
  • No brightness control.
  • 2 cm wide horizontal stripe.
  • Vertical foldover at top.
  • Mono audio, red OSD, no switching to stereo with RC also noisy PLL line. (part of circuit diagram displayed)
  • Stuck in standby.
  • Raster is blank, red LED does not light up at switch on.
  • Screen width is 10cm short on each side.
  • Vertical fault. Patterns in picture. Noise in picture.
  • Insufficient width and wavy vertical elements in picture.
  • ACG adjustment.
  • Starts up with the RCU, dark screen with two lines at the top. No function with the RCU, does not go off. (picture attached)
  • Does not switch to standby.
  • Vertical collapse. after a few minutes.
  • Picture reception, no sound, general commands do not function.
  • Low vertical deflection (picture only approx. 3cm high).
  • Vertical approx 1in short top and bottom. Insufficient vertical size control.
  • Reduced width. Ragged verticals.

Tips are coming from EURAS customers, workshops and payed technicians from all over the world. FIRSTLINE CT5593 fails can be better solved.

If FIRSTLINE CT5593 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 FIRSTLINE CT5593 fails.


Additionally to repairtips or service information CT5593 is linked to 47 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 CT5593 ).

EURAS system also knows 91 appliances having the same chassis as CT5593 and can easily list them.

In the repair discussion pinboard for CT5593 there are 5 replies to questions asked about 4 different repair problems.
With access to EURAS you can all read them or enter your own questions and get help for CT5593 from EURAS technicians or other users.

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Last updated: 22. Aug 2008 00:43:46 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.