Sony CFD-S250

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • DjKrish
    Badcaps Veteran
    • Oct 2012
    • 354
    • SG

    #1

    Sony CFD-S250

    Hi folks, greetings. I have an issue with my mini compo thats muting when it comes to tuner but sound works perfectly fine with cd and tape. When select tuner, even at max volume thats 10, the volume is like at 2 or 3. No problem with stations or anything else, but the only problem is the volume.

    I have replaced all the regulators on the mainboard that maybe muting the tuner circuit with excessive voltage, but no luck. I have attached the service manual here for your perusal. Any help on this is highly appreciated. Thank you.
    Attached Files
    Last edited by DjKrish; 05-27-2021, 04:47 AM.
  • DjKrish
    Badcaps Veteran
    • Oct 2012
    • 354
    • SG

    #2
    Re: Sony CFD-S250

    Anyone?

    Comment

    • budwich
      Badcaps Legend
      • Jul 2015
      • 3097
      • Canada

      #3
      Re: Sony CFD-S250

      check q814?

      Comment

      Related Topics

      Collapse

      • karthur
        Vizio D65x-G4 Volume changes on its own
        by karthur
        On this Vizio D65x, the volume will change on its own. I don't mean like during commercials where the volume will increase. I mean its like the (+) volume button on the remote is pressed and the actual volume dialog is displayed on the screen going up. It will do this, then the volume may start going down. It might go all the way to "0"or it might stop at a different number, then start going back up. The whole time its doing this, the volume dialog is shown on the screen.

        It wont do it until it has been "ON" for 20 or 30 minutes, so it does seem to be heat related....
        06-05-2025, 08:13 AM
      • Carlos#2003%
        Schematic de una Sony VAIO PCG-41217u, Sony VPCSB45FL (MBX-237), 1p-0117j01-a012 mbx-237.
        by Carlos#2003%
        Buenas mi nombre es carlos me uni al foro porque estoy buscando el schematic de una sony vaio pcg-41217u otras formas de escribirlo son 1p-0117j01-a012 mbx-237 numero de placa revision 1.2 o Sony VPCSB (MBX-237), en fin me gustaria y ayudaria un monton si alguien me puede dar dichi svhematic para hacer las mediciones de una laptop de la mencionada anteriormente(Sony VAIO PCG-41217U) con el fin de repararla dejo de funcionar solo prende el led de la bateria al pulsar el boton de power el disco empiesa a hacer ruido de actividad pero los leds del frontas no reflejan acividad y no enciende la pantalla....
        02-15-2024, 07:52 PM
      • crackedprint
        Sony HCD-HX80R Amplifier Volume Control Problem
        by crackedprint
        I have a strange fault on a Sony amplifier. The volume control varies the display from MIN, then 1 up to 30 and then MAX as expected. At MIN there is no sound. However, at 1 it is quite loud and increasing above 1 does not change the sound level.

        I have tried a Cold Reset as per the service manual.

        I have looked at the I2C clock and data to volume control chip IC501 (BD3499FV). Data is only sent to IC501 when the volume is set to MIN or 1. At any other setting no data is sent to IC501.

        I have looked all the way through the service manual and tried many online...
        01-21-2025, 12:18 PM
      • Ruptor
        Sony MHC 6600 volume clicking
        by Ruptor
        Has anybody had the problem of the digital clicking from the volume control coming through the speakers. I guess the mute should activate as everything seems to have a mute from the analogue switch LC7822 to prevent output of stuff on the speakers but the mute circuits are really complex. The pcb is very badly manufactured as if it is over etched and not cleaned properly before being screen printed because I have fixed one fault but a wide track lifted off real easy with very little heat requiring extra repair. I dread touching the board so would like to go straight to the problem if someone has...
        05-21-2023, 05:32 AM
      • jason123
        Sony STR-DN1030 Distorted audio when Volume adjusted
        by jason123
        New to Audio equipment. Received this 7.2 Surround Sound system - had a blown channel and fixed that (0.22 ohm resistor, 2 transistors, and 1 100 ohm replaced)

        All channels now work. However, when I raise the volume with knob or remote, it doesn't work smoothly - you can heard distortion, and some speakers don't seem to work at max or somewhere in between..

        First thought was the actual audio switch - but then Remote volume control shouldn't have this problem, but it does.

        Second thought was the ribbon cable from front display to control board (V-Flex,...
        06-05-2022, 12:54 PM
      • Loading...
      • No more items.
      Working...