Sony WRR-805A, Service Manual

Page: 29 / 54

3-9 WRR-805A (CE, AU)
3-2-6. RF Level Indicator Check
Equipment and Tools Required
Same as “3-2-4. S/N Check”.
Connection
Same as “3-2-4. S/N Check”.
Switch and Control Setting
Same as “3-2-4. S/N Check”.
Procedure
(1) Connect the signal generator to the ANTENNA
connector.
(2) Set the signal generator as follows:
FREQUENCY(Carrier frequency)
CE62 model : 806.125 MHz
CE69 model : 858.125 MHz
AU66 model : 792.250 MHz
RF OUTPUT (Output level) : 0 dB
u
V
EMF
( =
_
113 dBm)
MODULATION (Modulation frequency) :
OFF (No modulation)
(3) 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 level indicator Signal generator
lights in output level
15 dB u V
EFM
±
4 dB
25 dB u V
EFM
±
4 dB
35 dB u V
EFM
±
4 dB
45 dB
u
V
EFM
±
4 dB
RF
LCD :
RF
LCD :
RF
LCD :
RF
LCD :
(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
).
1
Channel setting :
CE62 model : Group 00, 6217 channel (800.125 MHz)
CE69 model : Group 00, 6901 channel (854.125 MHz)
AU66 model : Group 00, 6601 channel (792.250 MHz)
Signal generator setting :
FREQUENCY(Carrier frequency)
CE62 model : 800.125 MHz
CE69 model : 854.125 MHz
AU66 model : 792.250 MHz
2
Channel setting
CE62 model : Group 00, 6363 channel (813.875 MHz)
CE69 model : Group 00, 6964 channel (862.000 MHz)
AU66 model : Group 00, 6751 channel (805.500 MHz)
Signal generator setting :
FREQUENCY(Carrier frequency)
CE62 model : 813.875 MHz
CE69 model : 862.000 MHz
AU66 model : 805.500 MHz