Instruction manual

TABLE OF CONTENTS
Preparation
for Use 2
Rear
Panel Connections 2
Phono 1
& 2 2
Play 2
Record 1
& 2 2
Auxiliary 2
Quadradial 3
Main In and Pre Out 3
Loudspeaker Systems 3
FM Antenna 4
Antenna
Attenuator 5
AM Antenna 5
Connection
to AC Outlet 5
Convenience Outlet 5
Simplif ied Operating Procedure 5
Tuning Meters 6
Tuning 6
FM Antenna Orientation 6
Mono In (L, R) Switch 6
Tape/Source
Monitor Switch 6
Loudness Switch 6
Hi-Blend Switch 6
Low Filter Switch 7
Hi
Filter Switch 7
Muting Switch and Level Control 7
Main Controls and Switches
Sel ector Switch
Balance Control
Volume Control
Bass Mid and Treb le Controls
Main-Spkr-Remote Switch
Front Panel Jacks 8
Dubbing Out 8
Dubbing In 8
Stereophones 8
Some Suggestion on Using Tape Recorders
with Your Model 2270 8
Recording and Playback 8
Recording 9
Playback 9
Making
Two Recordings Simu ltaneously 9
Recording a Long-Duration Program 9
Copying and Editing 9
Technical Description 10
General 10
Front End 11
FM IF
Amplifier 11
Multipath Indicator 11
FM Stereo Demodulator 11
Muting Circuit 11
AM Tuner 12
7
7
7
7
8
8
Selector Switch 12
Tape Signals 12
Monitor (Tape/Source) Switch 12
Monitor (1 and 2) Switch 12
Phono Signals 12
Hi Blend and Mono (L and R) Functions 12
Control Circuits 12
Balance Control 12
Volume Control 13
Tone
Amplifier 13
Hi-Low Filters 13
Output Stage and Protective Circuits 13
Technical Specifications 18
Service Notes 19
LIST OF ILLUSTRATIONS
1. Rear
Pane l Connection Facilities and
~ustme~ 2
2. Loudspeaker System Connections 3
3.
FM/ AM Antenna Connect ion 4
4. AM Ferrite-rod Antenna 5
5.
Front Panel Controls and Jacks 7
6. Stereophone Plug 8
7. General Arrangement
of Tape Recorder 9
8. Functional Block Diagram 10
9. Phono Equalization Characteristics 14
10. Tone Control Characteristics 14
11. Low and High
Filter Characteristics 15
12. FM Characteristics 15
13. Stereo Separation 16
14. Harmonic Distortion 16
15. Frequency
Response 17
16. Packing Instructions 19