SONY XR1800R
Service Manual

SECTION 5 DIAGRAMS
5-1. NOTES FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
Note on Printed Wiring Board: � X : parts extracted from the component side. � Y : parts extracted from the conductor side. � ¢ : internal component. � b : Pattern from the side which enables seeing.

Note on Schematic Diagram: � All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. � All resistors are in � and 1/4 W or less unless otherwise specified. � ¢ : internal component. � C : panel designation. � U : B+ Line. � Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords. � Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW �� �� : LW [ ] : TAPE PLAYBACK � : Impossible to measure � Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. � Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. � Circled numbers refer to waveforms. � Signal path. F : FM f : MW (LW) E : TAPE PLAYBACK � Abbreviation G : German model. SE : South European model.

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