REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Tuesday 19 March 2019

HBUSTER - HBD-9600AVN - CAR DVD PLAYER - REPAIR GUIDE - [TROUBLESHOOT]

HBUSTER - HBD-9600AVN - CAR DVD PLAYER - REPAIR GUIDE - [TROUBLESHOOT]



TROUBLESHOOTING
The unit does not power ON.
  • Check whether there is a fuse in the filter box of power line or whether the fuse has been blown
  • If the unit can not be powered on yet, change the power line
  • If the unit still can not be powered on, you should check whether the reset button is pushed down by the front panel
  • If the unit can not be powered on yet after the above operation, you should change the main board part.
No Display
  • Check whether the connection of video output is right.
  • If there is no display yet, change the video output line.
  • If there is no display yet, change the main board part.
  • If there is no display after the above operation, you should change the video driver board part.
Unit Shut-down automatically.
  • Check whether the power supply is accord with the specification.
  • Check whether the fuse in the filter box of the power line has been blown.
  • Check whether the ACC is connected to the high level (The ACC is connected to the battery generally.
  • If the trouble is still not solved yet, check the connection between the front panel and the main board. If necessary, change the connector.
  • If the unit shuts down automatically yet after the above operation, you should change the main board part.
No Audio Output
  • Check whether the MUTE key is pressed.
  • Check whether the Fast Forward key or the Fast backward key is pressed.
  • Check whether now playing has audio.
  • Change the audio output line.
  • If there is no audio output yet, change the main board part.
  • If the trouble is not solved yet after the above operation, change the loader part.
No AUX-IN function
  • Check whether the AUX-IN input line is available.
  • If the AUX-IN function is void yet, change the main board part. 
Fan do not work
  • Check whether the power supply is turned on.
  • Check whether the power socket of the fan is connected firmly.
  • Change a good fan.
  • If the fan cannot turn yet after the above operation, change the main board. 
Abnormal colour
  • Check whether the video output of rear zone is normal.
  • If the video output of rear zone is normal, that is to say the decode works normally, and you should check the connection between the main board and the TFT unit.
  • If the video output of rear zone is abnormal, change the main board part.
  • If the colour of TFT is abnormal yet after the above operation, change the video driver board part.
Only a White Screen
  • Check the connection between the loader and the main board, the main board and the power supply board of TFT, the power supply board of TFT and the TFT.
  • If the trouble is still not solved, change the power supply board of TFT.
  • If the trouble is still not solved after the above operation, change the Display part.
No display.  Black Screen
  • Check the connection between the loader and the main board, the main board and the power supply board of TFT, the power supply board of TFT and the TFT.
  • Check whether the background lights are illumed. If not, change the CCFL board.
  • If there is no display in the TFT, change the display part.
  • If there is still no display in the TFT after the above operation, change the main board part.
Blue Screen
  • Check whether the video output of rear zone is normal.
  • Check whether the source can normally change. And have sound output.
  • If yes,check the reverse detect line.
  • If not, change the main board part.
  • If not yet, change the video driver board part.
Mute Icon Display
  • Check whether there is any audio output.
  • If the audio output is normal, change the main board part. If the trouble is still not solved, change the display part.
  • If the audio output is abnormal, change the main board part. If the trouble is still not solved, change the loader part.
Beeper function failure
  • Check whether the beeper has turn off in the set-up option.
  • Change the beeper.
  • If the trouble is not solved yet, change the main board part. 
No Key Function
  • Check whether the key in the front panel is available.
  • Check the connection between the front panel and the main board. If necessary, change the FFC connector.
  • If the key in the front panel is void, change the front panel part. 
No remote control function
  • Check whether the key in the front panel is valid.
  • If the key in the front panel is valid, that is to say the main board works normally. Check whether the battery of the remote controller is available or change another one good.
  • If the key in the front panel is void, you should check the connection between the front panel and the main board. If necessary, change the FFC connector.
  • If the trouble is still not solved yet, change the front panel.
  • If the trouble is still not solved yet, change the main board part.
No Display in LCD
  • Make sure the TFT unit is closed.
  • If there is no display in the LCD also, you should change the LCD board. 
Abnormal display in LCD
  • Check the connection between the main board and keypad.
  • If the display of LCD is abnormal, you should change the LCD board.
No Volume Display in the TFT
  • Check whether the volume knob is available.
  • Check whether there is volume display in the TFT using the remoter controller to adjust the volume.
  • If there is volume display in the TFT using the remoter controller to adjust the volume, that is to say the display part and the main board part work normally, you should change the front panel part.
  • If there is no volume display in the TFT using the remoter controller to adjust the volume, change the main board part.
  • If the trouble is still not solved yet, change the display part.
Playback picture is not good
  • Check whether the disc is dirty, scratched or deformed.
  • Check whether the lens of pick-up is dirty and clean it.
  • If the picture of playback is not fluent yet, you should change the loader part.
Cannot insert disc
  • Check whether there is another disc in the unit.
  • Check the connection between the loader part and the main board part. If necessary, change the connector.
  • If the trouble still exists, change the loader part.
  • If the trouble is still not solved after the above operation, change the main board part.
Cannot Eject Disc
  • Check the connection between the front panel and the main board.
  • Check the connection between the main board and the loader.
  • If the trouble is still not be solved, change the loader. 
  • If the trouble is still not be solved after changing the loader, change the main board.
Disc Ejects Automatically
  • Check the connection between the loader and the main board.
  • If the trouble still exists, change the loader.
  • If the trouble is not solved yet after changing the loader, you should change the main board.
TV function failure
  • Check whether the connection is right.
  • The TV/NAVI function is void yet, change the main board part.
Fails to Load
  • Check whether the disc you want playback is accord with the specification
  • Check the connection between the pick-up mechanism and the Servo & MPEG board. If necessary, change the loader part.
Posted By: FRANK at 02:50
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