Akai GX-646 Service Manual
Specifications and Main Features
- SYSTEM TRACKS: 4 Track 2 Channel Combo
- REEL SIZE: Reel no greater than 10''
- HEAD:
- Recording GX x 2
- Playback GX x 2
- Erase x 2
- MOTORS:
- Capstan AC Servo x 1
- Reel x 2 AC Edy current
- GRADE OF MEASURES:
- 19 cm/s ± 0.8% (7-1/2 ips)
- 9.5 cm/s ± 1.0% (3-3/4 ips)
- WONDERING AND FLUTTER:
- At 19 cm/s percent WRMS less than 0.03 percent, DIN 45500 0.07 percent
- At 9.5 cm/s percent WRMS less than 0.04 percent, DIN 45500 0.09 percent
- USING 1,200 FT TAPE, WAITING TIME IS 75 SEC: In 360 m
- FREQUENCY:
- 25 to 33,000Hz ± 3dB at a speed of 19 cm/s
- 25 to 26,000Hz ± 3dB (0vu)
- 25 to 25,000Hz ± 3dB at speed of 9.5 cm/s
- 25 to 15,000Hz ± 3dB ( 0vu)
- SIGNAL VERSUS NOISE: ratio Sushi better than 65 dB at 19 cm/s DIN 45500
- HARMONIC DISTORTION:The value at 19 cm/s is less than 0.4 percent
- INPUT:*
- MIC: 0.25 mV (input impedance 5.0 kohms)
- Line: For an input impedance of 100 ohms, the output will be negative 70 mV.
- B. Output: For a load impedance greater than 20 ohms, the output should be 775 V at a VU setting of 0. A standard 0VU phone output would be approximately 100 mV with a of 8 ohms.
- Input: For a din header, an input of 2 MV with an input impedance of 10 ohms is needed.
- D. Output: The said output requires a load impedance greater than 20 ohms and provides an output of 3 V.
- Japan = 110/120V 50/60 Hz – 110/120V 50/60 Hz
- The timing for Canada and USA would be 120V,60hz.
- The european countries, except the UK use 220V,50hz as standard.
- The standard power timing for UK/Australia is set to 240V 50Hz as standard power voltage.
- For other countries the standard is set to 110/120/240 with timings 50/60.
- B. Consumption:
- F. 70 W
- F. 75 W
- F. 120 W
- Dimensions: 440 W x 256 D x 483 H. The measurements of the object are 17.3 x 19 x 10.1 in inches.
- Weight: For the purpose of commercialization, the said item weighs 21 kg equivalent to 46.4 pounds.
Frequently Asked Questions
Q1: What type of tape can be fitted into this device?
A1: A maximum of 10” reel of tape can be fitted into this device.
Q2: What are the other speeds the tape can be set on?
A2: The modification settings can be set on 19 cm which is equivalent to 7-1/2 ips and the 9.5 cm/s setting can be used alternatively.
Q3: What are the power requirements of the device?
A3: The power requirements are different for different countries: Japan uses 100 V, the USA and Canada use 120 V, most of Europe uses 220 V, whereas the UK and Australia require 240 V. Additionally, it is possible to switch between 110 V, 120 V, 220 V, and 240 V at a frequency of 50 or 60 Hz depending on the country.
Q4: What are the available audio outputs of the device?
A4: The audio outputs of the device are through line outputs rated at 0.775 V at 0 VU and headphone outputs of 100mV/8 ohms at 0 VU.
Q5: What is the overall weight of the device?
A5: The device as a whole weighs 21 kilograms (in pounds, 46.4 lbs).
Q6: What is the value of signal to noise ratio?
A6: The signal to noise ratio of a device is greater than 65 decibels at a speed of 19 cm/s when using the standard set by the Deutsches Institut für Normung, where 45500 is the specification number.
User Manual
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