Question about Technics SL-1200MK2 Turntable

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Brakes dont work

When stop is pressed speeds up very fast

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The break potentiometer is probably bad and will need to be replaced. This is located underneath your turntable platter, on the main circuit board, and it's labeled BRAKE - VR201 - you can purchase a replacement part by clicking HERE

Not the easiest fix, as it does require soldering skills. But if you have that down, then this should be easy for you.

DJ PRO LAB

Posted on Feb 24, 2008

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If i remember this table right it uses a sensor to track the speed check for dust and dirt around the motor where the sensor is.

Posted on Jan 30, 2008

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Posted on Jan 02, 2017

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How do you operate a inteli-touch casablanca ceiling fan


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Cruise control stop working light dont show on dash can a fuse be out if so where is it located


There are three fuse's in the smart junction box , do you know where it is ? It's under the dash panel left side ! The fuse's are F2.27- 10amp , F2.32 - 10amp , F2.17 - 15 amp . They power the speed control servo ! Maybe the control switch's on the steering wheel don't work.
A little back ground on the system ! Speed Control The vehicle speed control system consists of the following components:
  • Brake pedal position (BPP) switch
  • Speed control actuator cable
  • Speed control switches
  • Speed control deactivator switch
  • Speed control indicator
  • Speed control actuator
  • Smart junction box (SJB)
  • Principles of Operation
    The speed control system is designed to maintain vehicle a set speed above 48 km/h (30 mph). After the speed control ON switch is pressed, pressing the speed control switch SET/ACCEL will activate the speed control actuator. To increase a set speed, either press and hold for continuous acceleration, or momentarily tap the speed control switch SET/ACCEL for 1.6 km/h (1 mph) acceleration increments. To decrease a set speed, press and hold the speed control switch COAST until the target speed is reached, or momentarily tap the speed control switch COAST for 1.6 km/h (1 mph) deceleration increments. When the speed control system has been disabled by tapping the brake pedal, the speed control switch RESUME can be pressed and the vehicle will return to the original set speed if the vehicle is traveling over 48 km/h (30 mph) and the speed control switch OFF has not been pressed.
    NOTE: The deactivator switch is provided as an additional safety feature. Normally, when the brake pedal is pressed, an electrical signal from the brake lamp circuit to the speed control actuator will deactivate the system. Under increased brake pedal effort, the deactivator switch will open and remove power to the speed control actuator, releasing the throttle independently of the speed control actuator.
    NOTE: The clockspring provides the electrical interface between the steering column wiring and the speed control switches in the steering wheel.
    The inputs to the speed control actuator are:
    • Vehicle speed signal
    • Speed control switches
    • Brake pedal position (BPP) switch
    • Deactivator switch
    The outputs of the speed control actuator are:
    • Speed control indicator lamp
    • Speed control actuator cable controlling the throttle position
    • Inspection and Verification
      NOTE: If any concerns are noted with the speedometer, stoplamps, or horn, address those concerns by referring to the appropriate sections before continuing speed control diagnosis.
      1. Verify the customer concern by operating the speed control system.
      1. NOTE: Any aftermarket modifications, including but not limited to those listed below, may cause the speed control to not operate correctly:
        • Any wiring or lamp modifications affecting the brake lamp operation
        • LED brake lamps
        • Non-factory installed trailer wiring
        • Radios (speed sensitive, auto mute)
        • Remote starters and alarms
        • Lighting and electrical accessory modifications
        Visually inspect for obvious signs of mechanical or electrical damage:
        • Visually inspect the speed control actuator and accelerator controls.
        • Visually inspect the speed control cable without removing it and ensure smooth cable operation. Inspect the speed control cable connection to the throttle body.
        • Visually inspect the accelerator cable without removing it and ensure smooth cable operation. Inspect the accelerator cable connection to the throttle body. Also check for cable interference with the carpet, bulkhead grommet, insulation and instrument panel wiring.
      1. Visually inspect for obvious signs of mechanical and electrical damage.
      2. Visual Inspection Chart Mechanical Electrical
        • Speed control actuator cable
        • Throttle linkage
        • Battery junction box (BJB) fuse(s):
          • 4 (40A)
          • 12 (60A)
        • Smart junction box (SJB) fuses:
          • 14 (15A)
          • 57 (10A)
        • Wiring harness
        • Loose or corroded connections
        • Deactivator switch
        • Brake pedal position (BPP) switch
        • Speed control switches
        • Powertrain control module (PCM)
        • Speed control actuator
        • Bulb

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2 Answers

Honda crv steering wheel shake


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can be tires out of balance (tire weighs feel off)
or wheel falling off (ever check the lugs)
tire bad. (bulged, delaminations , man killer tires, like Firestones)
tire rods balls, ready to fall off (more man killers)
ball joint ,ready to fail. and far far worse...
why not get the car serviced, have them check it out before.... bad happens.
noise and vibration or shaking on any machine means , doom is coming. in most cases,.

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1 Answer

Steering/brake chatter


What you describe could be warped brake rotors or bad wheel bearings. Doesn't sound like the power steering pump.

Jan 08, 2013 | Hummer Cars & Trucks

1 Answer

I will press on my brakes and they are soft and they dont stop fast enough and soemtimes the breaks slip


You need to have someone LOOK at this ASAP before you kill someone or yourself. You have a failure
in the hydraulic system which makes the brakes work by transferring your foot's motion to the braking surfaces. You could have a leaking line, a leaking master or slave cylinder any of which can cause a nasty accident. An actual person looking at the brake components is needed.

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1 Answer

How do you change the rear and front brake pads?


take loose calipers and put a srew driver in between the disk and the pad with the cylinder side and pry it in flush this is hard to do it help if you loosen the screws on you brake fill cylinder and just pull up a little so it can breathe dont take off! keep prying..if you cant get it all the way flat then try a c-clamp to squeeze the brake pad cylinders all the way in flat no take out the bolts that hold them in place and clean the caliper before installing the new pads an anti rattle clips...do reverse to install
no do the same for rear brakes.
WARNING!! do not ride the bike before you pump uo the hand and foot brake pedal at least a good 10 times or you wont be able to stop...the new pads have to be setted first..second WARNING never do fast high speed stop with new brakes..work them in gradually or you'll end up putting a glaze on the surface and you wont have the complete stopping power when you need it.

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1 Answer

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1 Answer

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1 Answer

Braking not working right


Well, does the platter spin at a constant speed (33 or 45 rpm), or does it spin super fast? If it spins at a constant speed, and it just wont stop, replacing that pot should do the trick (VR201 can be purchased HERE). You can attempt to replace it yourself (soldering skills are required), or just buy the part, and have a service tech replace it for you.

If it does not solve the problem, then the issue is with one of the IC's (integrated circuits). This is a more complex diagnosis and repair. But try replacing VR201 first, then taking it from there.

Good luck!

- TERMiNAL OPTiC
www.DJPROLAB.com

Mar 03, 2008 | Technics SL-1200 Turntable

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