Sony WRT-847A, Service Manual

Page: 10 / 54

1-6
WRT
-847A/847B
15
(GB)
1) 0 dB
SPL
= 2
x
10
-5
Pa
Specifications
Signal-to-noise ratio 60 dB or more (A-weighted,
modulation frequency 1 kHz,
with
±
5 kHz deviation at WRR-
802A)
Audio gain control –12 to +9 dB, variable in
3-dB steps
Maximum input level –7dBV
(at audio gain –12 dB)
Maximum input sound pressure level
142 dB
SPL
1) with CU-F780/
G780/E700/F117
at audio gain –12 dB
120 dB
SPL
1)
with CU-E672
Power section
Power requirements 3.0 V DC
(two LR6/size AA alkaline
batteries)
Battery life Approx. 8 hours at 25
°
C
( 77
°
F), with Sony LR6 alkaline
batteries, at 10 mW RF output
General
Operating temperature 0
°
C to +50
°
C (32
°
F to 122
°
F)
Storage temperature –30
°
C to +60
°
C
(–22
°
F to +140
°
F)
Dimensions 37
x
150 mm (diameter/length)
(1
1
/
2
x 6 inches)
not including antenna
Mass Approx. 150 g (0.5 oz)
not including batteries
Transmitter and modulator section
Oscillator Crystal controlled PLL
synthesizer
Type of emission F3E
Carrier frequencies Model available in USA:
470 to 806 MHz
Model available in Australia:
792 to 806 MHz
Model available in Europe:
470 to 862 MHz
Operating frequency band Model available in USA and
Europe: 24 MHz
Model available in Australia:
14 MHz
Refer to the “Sony Wireless
Microphone System Frequency
List” supplied with this manual.
RF power output 10 mW/50 mW selectable
(50-ohm load)
Tone signal 32.768 kHz
Battery condition signal 32.782 kHz
Type of antenna 1/4 -wavelength wire
Audio section
Acceptable microphone capsule
Sony microphone capsules
listed on next page
Pre-emphasis 50
µ
s
Deviation
±
5 kHz (–55dBV, 1 kHz input)
Frequency response 70 to 15,000 Hz
.............................................................................................................................................................................................................................................................
16
(GB)
Supplied accessory
Operating Instructions (1)
Sony Wireless Microphone System Frequency List (1)
Microphone holder (1)
Stand adaptor (1)
(PF
1
/
2
to W
3
/
8
type for the model available in
Europe and Australia)
(PF
1
/
2
to W
5
/
8
type for the model available in
USA)
Channel color seal (1)
Soft case (1)
Acceptable microphone capsule units (optional)
CU-F780 Super Cardioid Dynamic Microphone Unit
CU-G780 Super Cardioid Dynamic Microphone Unit
for Live Vocal Performance
CU-E700 Super Cardioid Electret Condenser
Microphone Unit
CU-E672 Hyper Cardioid Electret Condenser
Microphone Unit (Short-shotgun)
CU-F117 Omni-directional Dynamic Microphone Unit
Design and specifications are subject to change without
notice.
Error Messages
When a problem occurs, one of the following error
messages may appear on the display.
Specifications
Message Contents Measures
Error 11
The PLL synthesized
circuit is in trouble. Contact your Sony
dealer.
Error 31 Use the specified
batteries. The battery voltage
exceeds the allowable
value.
An error occurred in
backup memory data. The data was initialized.
Set the transmitting
channel/frequency, the
audio again level, the
compander time
constant and RF output
power.
Error 21
18
(ES)
Printed in Japan
Sony Corporation