Screen is red

The problem based on the model number is in or around the red picture tube---the bright red screen causes the set to draw too much current and the shutdown circuit detects this and turns set off--self protection.

Each picture tube (3) has a IC chip on the board connected to it--shorted chip or bad picture tube.

Shop repair in most cases.

As far as mostly red--turn color to zero and examine screen--if not gray or black and white it may need the screen controls adjusted.

Dark---with back cover off clean the three lens this model has--they are the light source for your picture and if dusty picture will be darker and somewhat dull looking.

Answer is based on brand/model number listed here.

Hello
Absence of green is the problem. You see mixing of red and blue, which will look like pink.
the fault must be of its video output card. This card can be located at the neck of the picture tube. Check this card, for any loose solder. This is a common problem seen in most CRt based Sony TVs.
Just resolder all the suspected solder points on this board, by applying a little more solder, without making any solder bridge short in between adjecent solder terminals.
images of two models of sony trinitorn TVs, [back cover opend] has been attached here. you can see the boar under suspection, along with the picture tube neck. [See the rectangulat printed circuit board attached to CRT base]

I know you can that you can change this by simply hooking up a scan tool for specific year. There are language options accessible for situations like this. Here is a sample of what can be changed using VAG 5052 or equivalent scanners.

Coding

• 0?xxxxx: Model
  • 1 = Lamborghini
  • 2 = Audi A3 (8P)
  • 3 = Audi A4 (8E)
  • 4 = Audi A4 Cabriolet (8H)
  • 5 = Audi A6 (4B)
  • 6 = Audi TT (8J)
  • 7 = Audi R8 (42)
• 0x?xxxx: Treble Speaker Monitoring inactive
  • 0 = Front Treble Speaker Monitoring inactive active (NOT Audi A4 Cabriolet)
  • 1 = Front Treble Speaker Monitoring inactive inactive (ONLY Audi A4 Cabriolet)
• 0xx?xxx: Sound Characteristic
  • 0 = Sound Characteristic linear
  • 1 = Audi A4 (8E)
  • 2 = Audi A6 (4B)
  • 3 = Audi A4 Cabriolet (8H)
  • 4 = Audi TT (8J)
  • 5 = Audi A3 (8P)
  • 9 = Sound System
• 0xxx?xx: Telephone/Telematic
  • 1 = Telephone not installed (Remote Feed Voltage for Microphone active)
  • 2 = Base Plate (Temic - Remote Feed Voltage for Microphone inactive)
  • 3 = Base Plate (Cullmann - Remote Feed Voltage for Microphone inactive)
  • 4 = Base Plate (Nokia - Remote Feed Voltage for Microphone inactive)
  • 5 = Telematic Europa (Remote Feed Voltage for Microphone inactive)
  • 6 = Telematic US (Remote Feed Voltage for Microphone inactive)
  • 7 = Base Plate diagnostic capable with Comfort Control
• 0xxxx?x: Equipment I
  • 1 = Tuner not installed
  • 2 = Digital-Radio installed
  • 3 = Satellite-Radio installed
  • 4 = Satellite and Digital-Radio installed
  • 5 = Analog Input (AUX) installed
  • 7 = Satellite-Radio & Analog Input (AUX) installed
• 0xxxxx?: Equipment II
  • 1 = TV-Tuner/CD-Changer/Multi-Function Steering Wheel not installed
  • 2 = TV-Tuner installed
  • 3 = CD-Changer installed
  • 4 = TV-Tuner and CD-Changer installed
  • 5 = Multi-Function Steering Wheel installed
  • 6 = TV-Tuner and Multi-Function Steering Wheel installed
  • 7 = CD-Changer and Multi-Function Steering Wheel installed
  • 8 = TV-Tuner and CD-Changer and Multi-Function Steering Wheel installed
    
    

Adaptation Channel 001: Tire Circumference The tire circumference is beeing adapted in "mm".


Channel 002: Wheel Pulse The wheel pulse describes the amount of wheel pulses per revolution.
If value 0 is entered the system calibrates automatically itself after several kilometers and inputs a value.

• 43 = Audi A3 (8P) / Audi TT (8J)
• 45 = Audi A4 (8E)

Channel 003: Language (Screen)

• 0 = German
• 1 = English (UK)
• 2 = French
• 3 = Italian
• 5 = Spanish
• 6 = Portuguese
• 7 = English (UK)

Channel 004: Back-Up Camera

• 0 = Back-Up Camera not installed
• 2 = Back-Up Camera installed

Channel 005: Speed Threshold (Video Input)

• 0 = max. 0 kph or 0 mph
• 1 = max 5 kph (Standard for Europe)

Channel 007: Options Channel 008: Volume Characteristic Channel 010: Region

• 0 = Europe/North America
• 1 = Australia/South America
• 2 = South Africa

Channel 011: Language (Speech Recognition)

• 0 = German
• 1 = English
• 2 = French
• 3 = Italian
• 5 = Spanish

Channel 018: Start Screen The start screen setting has to correspond with the control module coding, e.g. a S3 start screen doesn't work with an A4 coding.

• 0 = Standard Start Screen
• 1 = Audi S3 Start Screen
• 2 = Audi S4 Start Screen
• 3 = Audi RS4 Start Screen
• 4 = Audi TT Start Screen
• 5 = Audi R8 Start Screen

Channel 065: Read Test Channel 066: Self Test Channel 067: CD/DVD Drive

• 000 - Normal/Eject-Button enabled
• 001 = Eject CD/DVD (will not be saved)
• 255 = Eject-Button disabled/locked (Anti-Theft-Protection)

Channel 068: Screen Test Values will not be saved, they only act as initiation for each Test Picture.

• 0 = No Test Picture
• 1 = Test Picture: Red
• 2 = Test Picture: Green
• 3 = Test Picture: Blue
• 4 = Test Picture: White
• 5 = Test Picture: Black
• 6 = Test Picture: Checkerboard
• 7 = Test Picture: Checkerboard (inverted)
• 8 = Test Picture: 64 Gray Scales (vertical Bars)
• 9 = Test Picture: Special

Channel 069: Display Mechanism

• 000 = Display closed
• 001 = Display open
• 200 = Display half open (Obstacle)
• 255 = Position undefined

Channel 070: Display Brightness

• 0 = 0% Brightness (Display OFF)
• 1 = 20% Brightness
• 2 = 40% Brightness
• 3 = 60% Brightness
• 4 = 80% Brightness
• 5 = 100% Brightness

Channel 099: Transport Mode Only applies to models without Gateway/Diagnostic Interface for Databus.

• 0 = Transport Mode inactive
• 1 = Transport Mode active

Channel 111: Reset

• To perform a system reset/restart save 1 as new value.

Channel 114: FM Frequency

• Range: 875...1080

Channel 117: Signal Test (Output)

• 0 = Fader Center & Balance Center
• 1 = Fader Front & Balance Left
• 2 = Fader Front & Balance Right
• 3 = Fader Rear & Balance Left
• 4 = Fader Rear & Balance Right

Channel 136: Driver Position

• RNS-E Basic
  • 03226 = Left-Hand-Drive (LHD)
  • 02632 = Right-Hand-Drive (RHD)
• RNS-E High/US
  • 00005 = Left-Hand-Drive (LHD)
  • 00013 = Right-Hand-Drive (RHD)

You have one of two problems based on your description.

1.) Go to a channel that is in black and white and turn the color on the set all the way off.

Examine the screen and picture from several feet back----if the picture is mostly red and looks somewhat yellow in the main part of the screen you have a GLYCOL problem.

These sets have on each picture tube a sealed unit full of Glycol to cool the face of each tube (set has a red, green, blue picture tube)

If you find the yellow/orange look with the color off you most likely have bad Glycol in the blue picture tube---it never happens to the red--bacteria gets into the glycol and eventually there is no picture coming from (in most cases) the blue tube.

Loss of blue will leave you with Red and Green--mix those two and you usually get a orange/red affect.

There is a way to also confirm this with your eyes--it involves getting the back cover off of the set and holding a small mirror (with the set turned on--you have to be careful not to touch anything)

If you look in each lens you should see a fine picture--one red, one green and one blue--if as I suspect the blue tube is contaminated it will not have a picture and will look like a blue floodlight.

IF THIS IS NOT YOUR PROBLEM--GO into the customer menu and select convergence--what you are looking for is will red and blue adjust or not--are they skewed and will not move.

If this is the case you have a convergence problem--I can tell you what is involved to fix in either case.

Let me know what you find--I am here to help people.

If this information has helped you, rate this solution as I do this here for free.

SD TECH

is the picture clear when on? if yes, does the screen go black after a few seconds. if yes, sounds like you need a back light inverter!

in order to get the full HD experience you should be using HDMI cables. if you're using the white/red/yellow cables then your HD channels will not broadcast in full HD and you'll be stuck with the annoying black things around your screen

red screen is due to problem in red video circuit. please check 1 supply to red video ckt. 2 crt base loose. 3 components in red video ckt. 4 loose contact in red cathode ckt in crt base. 5 red video transistor. 6 signal coming to red video from signal processor. 7 signal processor ic. as per schematic check web site www.serviceinfo.com good luck.

have JVC AV-32F702 TV. It's picture color is very red. unable to adjust colors through menu. Channel numbers are also in red now instead of normal green. any suggestion? please check red color cathode circuit 1 check red output from ic to red cathode ckt 2 check voltage on r output ckt& ic or tr. 3 check loose contact in red cathode ckt 4 check crt base for loose. 5 loose connector 6 chroma ic thanks

Christ, why did you disturb the bias settings? Which stupid @#$% told you to that? The red color was most likely a blown Red Output Transistor, or something as simple as a bad CRT base. Now, I suggest that you switch off the TV, wait for a couple of hours, open the set, and very slowly and carefully pull the CRT PCB (along with sockets base. Then clean the CRT terminals (use a fine emery sheet.) Also check the base for dry (cold) solders. Replace the CRT board. Picture should be normal. If problem persits, then it is definitely the Red Output Transistor or associated components. Get a professional to have a look.