Sony MDS-JB940 Minidisc Player * Remote Control

Sony MDS-JB940 Minidisc Player * Remote Control

Sony

Regular price $400.00 USD
Sale price $400.00 USD Regular price
Sale Sold out

Features

ATRAC type "R": Sony's new version of ATRAC uses error evaluation, a second stage of bit-reallocation and better processing accuracy for smoother, more clearly delineated sound.

Current Pulse D/A Converter: The player uses a highly stable current source instead of the common voltage source for more stable 1-bit pulse train even when the power supply voltage fluctuates.

Digital Filter:  The Variable Coefficient digital filter allows you to change the tone to match your listening system, listening environment or the source being played. You can select standard (normal sound); Plain (A fresh and powerful sound) or Analog (a resonant and mellow sound). These settings only affect the analog outputs.

Converter: This unit uses a 24-bit A/D converter.

Transformer: The player uses an R-Core transformer to reduce radiated hum.

Front panel: The aluminum front panel helps stop resonance and vibration.

Jog dial: The player has a jog dial which, besides being used to access tracks and titling is also used for accessing a set up and edit menu to select many of the recording/playback options.

Clock: The clock with date allows you to check on recording date of discs with that information and to mark the date and time of recording on discs recorded on this unit.

Keyboard input: There is a PS/2 keyboard input on the front panel for use with an optional PS/2 computer keyboard.  Besides being used to title MiniDiscs with alpha-numeric keys,  it can also be used to select menu controls; pitch; play mode; track selection; track editing; etc. The keyboard is not supplied.

Copying CD Text /Custom File Disc Memo: When used with a compatible Sony CD player, CD Text or Custom file information is copied to the MiniDisc during recording.

Shock protection: There is a shock resistant buffer that will hold up to six seconds of music for shock protection and time machine recording.

Display: The two line display can display both the disc and track name simultaneously, or display the track name and time. It will also display the output level and 15-track music calendar.

Peak hold: Freezes the level meter display at the highest level reached by the input signal.

Pitch control: You can lower the pitch by up to 36 steps or 3 octaves. Additionally, you can control the playback speed in 0.1% increments from -87.5% to 0.0%.

Track numbers: You may set track numbers manually or automatically. When recording from an analog source, auto track marking is based on the signal dropping to a specified level for 1.5 seconds or longer (level can be set from -72 to 0 dB in 2dB steps).

Smart Space: This feature replaces long silent spaces (under 30 seconds) with a 3 second blank (may be turned on/off).

Auto Cut: If no sound is input for 30 seconds it will replace the silence with 3 seconds of silence and place the unit into record pause.

Sleep function: You can select 30, 60, 90 or 120 minutes.

Time machine recording: The last 6 seconds of data is stored in a buffer so you can start recording 6 seconds before you actually engage record function.

Name erase: This function allows you to erase all titles on a disc simultaneously. You can also erase one by one.

Undo: Cancels the last edit and restores the MD to the way it was prior to edit.

Music synch: Allows you to synchro-record with any audio equipment.

Synchro buttons and CD buttons: These remote buttons allow you to synchro-record with a Sony CD player.

Timer: Timer recording or playback is available when using an external optional audio timer.

Analog output: The output can be turned up or down for better matching to your amplifier, etc. from the remote.

Recording: You can record in both stereo and mono. Mono recording doubles the recording time.

Long Play Recording: In addition to normal stereo recording, this unit has two long time recording modes; LP2 and LP4. When recording in LP2 Stereo mode, you can record two times the normal recording time. When recording in LP4 Stereo mode, you can record four times the normal recording time. Discs recorded using the LP modes will play only in MD players equipped with the long play feature; MDs recorded using the long play feature cannot be played in all MD players.

Recording Level: Recording level can be set for both digital and analog recording. Additionally, you can change the volume of the recorded tracks using S.F. (Scale Factor) Edit, which records the original track over at a new recording level.

Automatic conversion of digital sampling rates: This allows you to convert 32 and 48kHz to the 44.1 kHz sampling rate of MD, so you can record from DBS with digital out or DAT/DCC.

Updating: After recording, editing, or changing the table of contents the MD is only updated when power is turned off on the front panel or the disc is ejected. An interruption of power through the AC cord will cause everything that was changed since the last updating occurred to be lost.

Inputs and Outputs

Front panel:

  • Phones: Standard gold plated headphone jack with rotary volume control

  • Keyboard: PS/2 input for use with an optional keyboard

Rear panel:

  • Analog in: RCA analog line in (gold plated)
  • Analog out: RCA analog line out (gold plated)
  • Coaxial in: Coaxial Digital input (gold plated)
  • Optical in 1: Toslink Digital line 1 input (covered by a plastic cap)
  • Optical in 2: Toslink Digital line 2 input (covered by a plastic cap)
  • Coaxial out: Coaxial Digital output (gold plated)
  • Optical out: Toslink Digital line output (covered by a plastic cap)
  • Control A1II jacks: Two mono mini-jacks for connecting this unit to compatible Sony components (note that the cords are not supplied)

Out of stock

There’s something undeniably magnetic about vintage audio gear. The tactile weight of milled aluminum knobs, the warm glow of dial lamps, and—above all—the rich, analog sound that today’s sterile streaming boxes can’t quite replicate. But time is merciless: capacitors dry out, switches oxidize, and those gorgeous walnut cabinets lose their sheen. That’s where the art (and science) of our vintage audio refurbishment comes in.

Why Vintage Audio Still Matters

In the golden era of hi-fi—roughly the mid-1960s through the early 1980s—companies like Marantz, McIntosh, Pioneer, Sansui, and Technics were engaged in an arms race of build quality. This was before cost-cutting plastics and disposable designs; amplifiers were over-engineered, receivers were works of art, and turntables were precision instruments.

Owning one wasn’t just about sound; it was about status and permanence. These machines were built to last a lifetime—or two. The irony? Decades later, they often do, provided they’re given the care they deserve.

The Philosophy of Refurbishment

Refurbishment is not just about fixing; it’s about preserving authenticity while ensuring reliability. The goal is to keep that lush, analog character alive without compromising safety or sound quality.

Some enthusiasts chase museum-level originality—keeping every factory component in place. Others opt for sympathetic modernization, upgrading parts that never existed in the ’70s to improve performance. Both approaches can be valid; it depends on your vision.

The Turntable Store refurbishing process.. step by step

Step 1: The Initial Encounter

When we first meet a 40-year-old amplifier, we resist the urge to plug it in right away. That dusty Marantz 2270 might look gorgeous, but old electrolytics and brittle insulation can short instantly under full voltage.

Instead:

  • We inspect for corrosion, burnt resistors, and leaking capacitors.
  • We use a Variac (variable transformer) to bring up voltage slowly, reforming capacitors rather than shocking them back to life.
  • We check fuses—not just for continuity but for correct ratings.

Tip: A faint musty smell? That’s often the scent of old phenolic boards, not trouble. But a burnt smell? That’s trouble.


Step 2: Deep Cleaning & Control Detox

Dust is the enemy of good sound, that is why we clean the interior carefully with compressed air and a soft brush.

The real magic comes with switches and potentiometers. Over decades, oxidation builds up, causing scratchy controls and dropouts. A deep contact clean in each pot and switch, followed by vigorous cycling, often restores silky-smooth operation.

Step 3: Electrical Resurrection

This is where science meets art:

  • Capacitors: Electrolytic caps often need some attention. We replace out-of-spec caps with high-quality modern equivalents (Nichicon, Panasonic), avoiding over-capacitance unless the power supply can handle it.
  • Resistors: Carbon comp resistors drift over decades. Measure and replace out-of-spec parts.
  • Transistors: Certain vintage transistors (e.g., 2SC458) are notorious for noise. We do swap defective ones for modern low-noise equivalents.
  • Relays & Lamps: Speaker relays oxidize; replace or clean contacts. Dial lamps? Upgrade to warm LEDs for a factory glow without the heat.


Step 4: Cosmetic Glory

Refinishing the walnut cabinet can transform a unit. We do use real wood oil or Danish oil, not polyurethane. We clean the glass dial carefully; those silkscreened letters are fragile.

Knobs? We polish with metal cleaner, but never use abrasives on anodized aluminum.

Faceplate lettering? We avoid harsh chemicals—just mild soap and a microfiber cloth.


Step 5: Calibration & Sonic Check

After the repair and cleaning, it’s time to dial in the performance:

  • We do adjust bias and DC offset on amplifiers for stable operation.
  • On turntables, we re-lube bearings, replace belts, and check speed accuracy.
  • On Cassette Decks and Reel to Reels, we replace belts ( if needed ), we clean and demagnetize the heads before the alignment process ( a must ! ) 

When done right, the result is astonishing: a sound that breathes—liquid mids, velvet highs, and bass with a tactile presence that modern gear rarely matches.


Our promise for Audiophile-Level Results

  • We Avoid Cheap Parts: That $5 eBay capacitor kit? Hard pass. We use reputable brands.
  • We Don’t Over-Polish: Patina is part of the charm. We aim for “well-loved,” not “plastic surgery.”
  • We Upgrade Discreetly: If we must modernize (like adding gold-plated RCA jacks), we keep it tasteful and reversible.


Why It’s Worth It

The payoff isn’t just sonic—it’s emotional. Restoring a 1970s Marantz or Sansui is like bringing a classic car back to life. Every glowing dial lamp, every smooth rotation of a volume knob, connects you to an era when music mattered enough to build machines like this.

And when you drop the needle on your favorite record and hear that warm, enveloping sound, you’ll know: this wasn’t just a repair. It was a resurrection.

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at theturntablestore@gmail.com. Please note that returns will need to be sent to the following address: 

The Turntable Store
45 Market Square
Manheim PA 17545

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at theturntablestore@gmail.com.


Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like turntable needles and custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at theturntablestore@gmail.com.

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All items are meticulously serviced and restored to meet factory specifications

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