Sony WRR-855B, Service Manual, Page: 35 / 84

3-19
WRR-855B
. U14 model
1
Channel setting:
Group 00, 17-47 channel (493.875 MHz)
Signal generator setting:
FREQUENCY: 493.875 MHz
2
Channel setting:
Group 00, 14-01 channel (470.125 MHz)
Signal generator setting:
FREQUENCY: 470.125 MHz
.
U30 model
1
Channel setting:
Group 00, 33-47 channel (589.875 MHz)
Signal generator setting:
FREQUENCY: 589.875 MHz
2
Channel setting:
Group 00, 30-01 channel (566.125 MHz)
Signal generator setting:
FREQUENCY: 566.125 MHz
. U42 model
1
Channel setting:
Group00, 45-47 channel ( 661.875 MHz)
Signal generator setting:
FREQUENCY: 661.875 MHz
2
Channel setting:
Group00, 42-01 channel ( 638.125 MHz)
Signal generator setting:
FREQUENCY: 638.125 MHz
.
U62 model
1
Channel setting:
Group 00, 65-47 channel (781.875 MHz)
Signal generator setting:
FREQUENCY: 781.875 MHz
2
Channel setting:
Group 00, 62-01 channel (758.125 MHz)
Signal generator setting:
FREQUENCY: 758.125 MHz
. U66 model
1
Channel setting:
Group 00, 69-47 channel (805.875 MHz)
Signal generator setting:
FREQUENCY: 805.875 MHz
2
Channel setting:
Group 00, 66-01 channel (782.125 MHz)
Signal generator setting:
FREQUENCY: 782.125 MHz
5. RF Input Level Indicator Check
Step 1: Switch and control setting
Channel setting:
CE21 model; Group 00, 22-32 channel (482.000 MHz)
CE33 model; Group 00, 34-32 channel (578.000 MHz)
CE62 model; Group 00, 63-32 channel (810.000 MHz)
CE67 model; Group 00, 68-32 channel (850.000 MHz)
U14 model;
Group 00, 16-01 channel (482.125 MHz)
U30 model; Group 00, 32-01 channel (578.125 MHz)
U42 model; Group 00, 44-01 channel (650.125 MHz)
U62 model; Group 00, 64-01 channel (770.125 MHz)
U66 model; Group 00, 68-01 channel (794.125 MHz)
MUTING: OFF
Step2:
Checking
(1) Connect the signal generator to the ANT IN A connec-
tor, and setthe signal generator as follows:
Signal generator setting
FREQUENCY (Carrier frequency) :
CE21 model; 482.000 MHz
CE33 model; 578.000 MHz
CE62 model; 810.000 MHz
CE67 model; 850.000 MHz
U14 model; 482.125 MHz
U30 model; 578.125 MHz
U42 model; 650.125 MHz
U62 model; 770.125 MHz
U66 model; 794.125 MHz
RF OUTPUT (Output level): 0 dB
µ
V
EMF
( =
_
113 dBm)
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation)
:
±
5 kHz
(2) Increase gradually the output level from the signal
generator, and check that the output level of the signal
generator is as follows when the RF input level
indicator lights.
RF input level indicator Output level of Signal indicator
Light in red. 10 dB
µ
V
EMF
±
3 dB
Light in green. 25 dB
µ
V
EMF
±
3 dB
(3) Connect the signal generator to the ANT IN B connec-
tor, and perform the checking of procedure (2) above.
(4) Set the channel setting and FREQUENCY (carrier
frequency) of the signal generator as shown
1
and
2
below. Perform the procedures (1) through (3) above,
for each channel setting (
1
and
2
).