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General| Track System | 4-track, 2-channel, stereo/monaural system |
|---|---|
| Reel Size | up to 10.5 inch reel |
| Wow and Flutter | 0.06% (7 1⁄2 ips) |
| Signal to Noise Ratio | 58dB |
| Output | 0.775V |
| Type | Reel-to-reel tape deck |
| Heads | 3 (erase, record, playback) |
| Motor | 2 x reel, 1 x capstan |
| Tape Speeds | 3 3⁄4 ips, 7 1⁄2 ips |
Adjust brake solenoid position for proper brake band separation.
Adjust spring rack for correct brake tension (500g).
Set pinch roller solenoid position for rotation.
Adjust nut for 1.4kg pinch roller pressure.
Ensure 0.1mm clearance for capstan shaft play.
Adjust screws for 0.1mm impedance roller play.
Adjust guide height to prevent tape curling.
Adjust table height for proper tape winding.
Align joint B for proper switching linkage.
Adjust tape guides and head core heights for optimal tape path.
Align head gaps and azimuth for accurate signal reproduction.
Adjust power supply to 24V.
Adjust VR1 for 7-1/2 ips and VR2 for 3-3/4 ips.
Adjust levels, response, and bias for GX-630D/DB.
Adjust recording and playback Dolby circuits.
Chart detailing interchangeable PC boards for models.
Diagrams showing layout and connections of PC boards.
Lists parts for head block, motors, and mechanism assemblies.
Lists parts for power supply, PC boards, and semiconductors.
Lists parts for amp and final assembly stages.
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