I found the manual to be clear concise and complete. It was of immense assistance when removing the unit as the unit was over 22 years old and the wiring diagram was unobtainable from the manufacturer. The exploded drawings were clear as were the instructions and labels.
Very pleased with the quality of the scan. No complaints whatsoever.
Text excerpt from page 1 (click to view)
MDR-501LP/605LP
SERVICE MANUAL
Ver 1.1 2003.12
MDR-501LP/605LP
US Model
Canadian Model AEP Model E Model
MDR-605LP
Photo : MDR-501LP
SPECIFICATIONS
Driver units : 40 mm dia. 40 ohms at 1kHz Power handling capacity : 0.5W Sensitivity : 104 dB/mW (501LP), 106 dB/mW (605LP) Frequency response : 12 � 24,000Hz Mass : Approx. 145 g (5 oz) (without cord) Cord : Approx. 3 m (118 1/8 inch) long OFC litz cord with a gold-plated stereo unimatch plug Design and specifications are subject to change without notice.