Sony C-535P Service Manual

SPECIFICATIONS
Condenser microphone
External power:
Phantom powering system
Type
Power supply
For J and E models, use optional Sony
AC-148F external power supply.
Power requirements
Normal operating voltage
48 V de -
Using an external power supply
Minimum operating voltage
Approx. 42 V dc
Current drain
Less than 2mA
Frequency response
30 Hz- 16,000 Hz
Directivity
Uni-directional
Pickup direction:
C-535P: parallel to the axis
C-536P: at a right angle to the
axis
Perfomance
Output impedance
200 ohms +20%, balanced
Sensitivity (deviation +2 dB)
Open circuit voltage": —41.0 dB
(8.9 mV)
Effective output level??: —40.0 dBm
Recommended load. impedance:
More. than 3 kohms
Signal-to-noise ratio
More than 72 dB
(1,000 Hz, 1 Pa)
Inherent noise Less than 22 dB SPL
Wind noise"
(0.dB = 20 pPa)
C-535P: Less than 70 dB SPL
C-536P: Less than 60 dB SPL
Induction noise from external magnetic field"
Db
2
2
Less than 5 dB SPL/m gauss
OdB = 1 V/1 Pa (10 ybar), 1,000 Hz
OdBm = 1 MW/1 Pa (10 zbar), 1,000 Hz
Wind noise is. the value measured when subjecting the microphone to a wind
velocity of 2 misec. (6.6 ft./sec.) from ail directions to the microphone. The mean
value is measured and converted to the equivalent input sound level.
OdB = 20yuPa
The external magnetic field induction noise is measured with the microphone
placed in an-alternating magnetic field of 50 Hz, 1 milligauss. The maximum
noise value is measured and converted to the equivalent input sound level.