Akai GX-365 Service Manual
Specifications and Main Features
- Power Supply: Can accommodate a voltage range between 100 to 240 Volts. Works on frequencies 50 or 60 Hertz.
- Recording System: Has in-built 4 track stereo/monaural recording systems that work on the focused principle.
- Tape Speed: Can work at speeds of 15 and 7 ½ ips, 3 ¾ and 1 ⅞.
- Weights and Dimensions:
- Wt. but includes 1.5% at 7-1/2 ips.
- 1.0% at 3-3/4 and 1-7/8 ips.
- First stage of Deterrence:
- At linear output: Less than 0.1.
- No load condition:
- 30 to 22 ,000 HZ and 30 with added 3 dB 9st tape 30.
- Efficiency:
- 30 to 18,000 HZ with 3 added 3d B and 1 D and 9 D as well Test results of moving magnet cartridges gave a good exemplary result.
-7 1/2 IPS have a better balanced sound over the other models.
-13202H: The H Distortion: More than 1.7 percent at low speeds
- Recording Inputs:
- Camera : More than 0.7_IDS
- Inputs:
- Line Input: More than 70 mV
- Impedance: 166 K ohms
- DIN Input: High: 70mV 166K ohms, Low: 7mV 16K ohms
- Outputs:
- Line Output: Required Load Impedance – more than 50,000 ohms
- Power Output: Greater than 10 W at Non-inductive resistance of
8 ohms
- Less than 5 mV at the External Speaker Jack of 8 ohms
- Noise (Volume Control at “Minimum” position):
- Less than -70 dB (Monaural)
- Less than -45 dB (Stereo)
- Erase Ratio: More than 70 dB
- Insulation Durability: 500 V AC for over a minute
- Bias Frequency: 100 KHz – 110 KHz
- Main Motor: Hysteresis Synchronous 3 speeds
- Reel Motor: Two 6-pole eddy current outer-rotor motors
- Heads:
- Playback Head: In-Line 4-track Glass + Crystal Ferrite Head
- Recording Head: In-Line 4-track Glass + Crystal Ferrite Head
- Erase Head: In-Line 4-track Crystal Ferrite Head with 380 ohms at 100
KHz impedance
- Internal Speakers: 2 each 4 inch Round Speakers, nominal power
input 3 W 16 ohm
- Transistors Used: Various models, 2SC458LG, 2SC711D
Frequently Asked Questions
Q1: What is the power supply requirement for the device?
A1: The device requires AC 100 to 240V 50 or 60Hz.
Q2: At what tape speeds does the device work?
A2: This tape device operates on multiple tape speeds of 1-7/8, 3-3/4, 7-1/2, as well as 15 inches per second.
Q3: How does the tape respond in terms of sound frequencies at 7 ½ inches per second?
A3: The tape guarantees sound the frequencies ranging from 30 to 22,000 Hz +3 dB when the speed is adjusted to 7-1/2 inches per second.
Q4: What would the ratio in between the signal and noise level be once the line output is in use?
A4: While using the device at a tape speed of 7-1/2 inches per second, the ratio would exceed 48 decibels.
Q5: What is the timeframe for wind forwards and wind reverses?
A5: In both frequencies of 50 Hertz and 60 Hertz, it takes 85 and 70 seconds respectively for a tape of 1200 feet.
Q6: Is 3.0 percent distortion the maximum limit in terms of total distortion while operating at 3-3/4 ips?
A6: Yes, for all practical purposes, distortion must remain below the threshold of 3.0 percent while working at 3-3/4 ips.
Q7: Are there any limitations in terms of input requirements?
A7: The input requirement limitation for the line input include an impedance of 166 k ohm.
Q8: Is the device capable of working with stereo recording?
A8: Yes, in-line 4 recording of stereo and four track devices alongside monaural recording can be done with this device.
Q9: Can you elaborate on the kind of speakers attached to this device?
A9: There are 2 four inch woofers fitted into the device that has a resistance of 16 ohms and a power of 3 W.
Q10: Is it possible to explain to me the function of the erase ratio of the device?
A10: The ratio exceeds seventy decibels which is rather impressive.
User Manual
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