Onkyo T-4 Service Manual covers following topics:
- How to repair Onkyo T-4 Servo Locked AM/FM Stereo Tuner?
- How to maintain and fix your Onkyo T-4 Servo Locked AM/FM Stereo Tuner?
- Specifications, Block Diagram, Exploded View,
- Stringing Diagram, Component Location, Alignment Procedures,
- Schematic Diagram, Packing Procedures
Onkyo T-4 Service Manual(Book ID=38395 Added on August 21, 2012) Onkyo T-4 Service Manual covers Repair Guide, Troubleshooting, Parts List, Exploded diagram, Wiring Diagram, Schematics, Assembly and dissembly of equipment. Using Onkyo T-4 Service Manual, you will be able to get answer of common questions regarding equipment like:
- How to open and clean Onkyo T-4 Service ?
- How to fix broken Onkyo T-4 Service ?
- How to solve various error codes?
- How to repair broken parts and various part numbers?
- What is the meaning of various buttons and indicators on device?
- How to carry out alignment and routine servicing of your device?
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Below is example of common troubleshooting you can do using this service manual
Block Diagram of the Onkyo T-4
Automatic Servo Locked Tuning System
The outstanding feature of this high quality stereo tuner is the Servo Locked Tuning System. FM stations are tuned immediately, automatically, and accurately, without the slightest fine tuning adjustment required at all. Simply tune approximately to the desired FM station, and then let go. The automatic servo locked tuning circuit does the rest, fine tuning the station with uncanny electronic precision. The station remains firmly ‘Mocked” for as long as you want without the slightest hint of station drift – a great advantage during important recording sessions.
“Human Touch Sensor” Tuning Knob
An essential part of the Servo Locked Tuning System is the tuning knob itself, connected to a special sensor circuit. When your hand touches the tuning knob to tune to the desired station, the servo locked tuning circuit is temporarily “disconnected”. But when you let go of the tuning knob, after tuning approximately to the FM station, the servo locked tuning circuit is reactivated via the special sensor circuit, locking the station to dead center tuning. No fine tuning adjustments are required since the servo lock system automatically compensates for tuning differences.