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  1. bertus

    Faulty mini hifi system

    Hello, eServiceinfo has the service manual: https://www.eserviceinfo.com/downloadsm/33170/Philips_FW-D596%20/21M.html https://www.eserviceinfo.com/downloadsm/33163/Philips_FW-D596%20/21M.html The manual is split into 7 pieces. You must download all multiparts on the given pages and unpack the...
  2. bertus

    ANTMINER SERVER POWER SUPPLY fan wiring

    Hello, The 4 wire fans will likely have the following signals GND, + 12 V , PWM and TACH: http://www.pavouk.org/hw/fan/en_fan4wire.html It can be that the powersupply checks the TACH signal on both fans. Possibly when one of the TACH signals is missing, the powersupply goes into protection and...
  3. bertus

    CurtisMathes TV/VCR combo - Fuzzy screen clears when smacked!

    Hello, Then it could be a VCR problem in stead of a TV problem. You could have a look at this page for tips: http://www.repairfaq.org/sam/vcrfaq.htm Bertus
  4. bertus

    CurtisMathes TV/VCR combo - Fuzzy screen clears when smacked!

    Hello, When do the distortions occur? Is this picture taken with a picture from the VCR? Bertus
  5. bertus

    CurtisMathes TV/VCR combo - Fuzzy screen clears when smacked!

    Hello, What do you mean with fuzzy? Is the picture out of focus? In most color tv's there is a focus adjust. Here is an example from the internet: You might also have a look at this page for repair tips: http://www.repairfaq.org/sam/tvfaq.htm Bertus
  6. bertus

    Amp driving LED project issue

    Hello, The LM3915, that audioguru showed, has 3 dB steps. The LM3916, has a VU meter arangement. Bertus
  7. bertus

    New to electronics

    Hello, Perhaps the following pages of the EDUCYPEDIA will tell you more: Air conditioning Automotive batteries Car Car elektricity Car java applets Car mechanics Car topics Diesel Fuel systems Bertus
  8. bertus

    Sciaky model C.R.O.I. what is it?

    Hello, What is the diameter of the CRT-tube? It could be one like this: https://tubes-store.com/product_info.php?products_id=1255 Bertus
  9. bertus

    Questions lithium polymer battery

    Hello, Did you see the list in post #61? There you see a list of discharge depth versus the number of cycles. Bertus
  10. bertus

    Sciaky model C.R.O.I. what is it?

    Hello, It looks like an oscilloscope. The first oscilloscopes did not have a trigger function and had a free running oscillator as timebase. The trick was to adjust the frequency knob to have a steady picture on screen. From the wiki: Synchronized sweep Oscilloscope with synchronized sweep...
  11. bertus

    Two intel processor chipset which is the best?

    Hello, Celeron N4000 General Info Designer Intel Manufacturer Intel Model Number N4000 Part Number FH8068003067417 S-Spec SR3S1 Market Mobile Intel Atom x5-E8000 General Info Designer Intel Manufacturer Intel Model Number x5-E8000 Part Number FH8066501715946 S-Spec SR2LV Market Embedded Bertus
  12. bertus

    Sony Bravia KDL-50W685A uniform lines on screen.

    Hello, Did you see this page in the second manual? Bertus
  13. bertus

    Sony Bravia KDL-50W685A uniform lines on screen.

    Hello, It looks like an electronic problem. It is not a problem of the backlights, that would give broader dark bars and possibly not that regular. Is there a schematic available? Bertus
  14. bertus

    Sony Bravia KDL-50W685A uniform lines on screen.

    Hello, Do the dark lines also show when you use an other source as input? I assume there are more inputs. Bertus
  15. bertus

    convert 3v to 12v?

    Hello, When you convert the 3 Volts to 12 Volts, the current on the 3 Volts side will be at about 4.5 to 5 times higher, due to efficiency losses. Bertus
  16. bertus

    CRT TV Mitsubishi CT29AS1 Vertical deflection problem?

    Hello, It looks like they tried to solder this region: So to see it is in the audio part. Bertus
  17. bertus

    CRT TV Mitsubishi CT29AS1 Vertical deflection problem?

    Hello, What happened in this corner? It looks like someone tried to solder something and touched the plastic frame. Bertus
  18. bertus

    Sony Bravia KDL-50W685A uniform lines on screen.

    Hello, This is a digital TV. It looks like there is a decoding / driver problem. Bertus
  19. bertus

    CRT TV Mitsubishi CT29AS1 Vertical deflection problem?

    Hello, It looks like the vertical deflection is done by a TDA8178S: There are some scope test images in the schematic. Bertus
  20. bertus

    Sony Bravia KDL-50W685A uniform lines on screen.

    Hello, Can you post a picture of the screen? I have seen that there are bright lines over the screen, but no dark lines. Bertus
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