DIATONE DP-EC6
¥ 49,800 (around 1981)
Commentary
This electronically controlled full-auto player was developed by putting in the technology cultivated in advanced machines.
To detect the record size, an optical system is applied to the automatic record size detection mechanism.
In this system, the reflector emits light from an obliquely upward direction, guides the light from the turntable seat reflector to the sensor, and changes the output of the sensor by irradiating or shielding the light according to the size of the record. This output is sent to the logic circuit, and the record size is automatically detected. Based on the detected record size, the needle down position and rotation speed are automatically determined.
Equipped with a quick response mechanism, even when the arm is ascending or descending by automatic operation, if you indicate the next operation with the button, it will move immediately to that operation.
Feather touch type using micro switch is adopted for the operation button.
The full-auto mechanism uses an EC (electronic control) circuit, which uses a single-chip LSI to accurately control complex operations.
Equipped with a needle tip protection function, the tone arm does not lower when there is no record on the turntable.
Uses a muting mechanism to cut noise.
Anti-resonance filter with weight case, butyl rubber butyl rubber, and damper added to the tone arm's needle pressure knob and main weight structure is used to reduce resonance.
In addition, by expanding the span of the pivot, looseness of the pipe part is eliminated, and high sensitivity is realized in both vertical and horizontal directions.
The motor used to drive the tone arm is a dedicated motor that is independent in both horizontal and vertical directions.
Stainless steel is used for the material of the tone arm to reduce the deflection of the pipe part.
A DC servo motor is used as the turntable drive motor.
Wooden cabinet is used for the cabinet.
The dust cover was sold separately.
Model Rating
| Type | Electronically controlled full auto player |
| <Turntable portion> | |
| Drive system | Direct drive |
| Motor | DC servo motor |
| Turntable | 324 mm Aluminum Alloy Die-cast, 1.4 kg |
| Number of revolutions | 33 1/3, 45 rpm |
| Wow and flutter | 0.03% (WRMS, JIS) |
| Signal-to-noise ratio | 70dB(DIN-B) |
| Tone Arm Section | |
| Format | Static Balanced Universal S-Shaped Pipe |
| Total Length | 320mm |
| Effective length | 227mm |
| Overhang | 14mm |
| Offset Angle | 22 ° |
| Tracking error angle | + 2.8 °, -1.5 ° |
| Needle pressure adjustment | 0 ~ 3g Direct Reading Type (0.1g Step) |
| Head shell | Glass Fiber Reinforced Plastic, 6.6g |
| Cartridge mounting weight range | 5g ~ 11g |
| <General> | |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 14W |
| External dimensions | Width 455x Height 135x Depth 382 mm |
| Weight | 7kg |
| Attachment | 45 Rotation Adapter |
| Sold Separately | Dust Cover HX-610 (¥ 2,500) |