Sony UWP-V1 Service Manual page 57

(5) RF Squelch Level/RF Indicator Check
Procedure
n
The checking procedures describe that the URX-M2 (to be
adjusted) is installed into the Tuner [1] slot on the MB-X6 or
MB-806.
1. Set the URX-M2 and MB-X6/MB-806 as follows :
. URX-M2 Front panel (Tuner [1])
Channel setting :
U30 model ; Group 03, 32-01 channel (578.125 MHz)
U42 model ; Group 03, 44-01 channel (650.125 MHz)
CE62 model ; Group 04, 63-32 channel (810.000 MHz)
CE67 model ; Group 04, 68-32 channel (850.000 MHz)
KR model ; Group 12, 60-01 channel (746.125 MHz)
Muting : ON (Normal mode)
. MB-X6/MB-806 Rear panel
ATT (ANTENNA A, B) switch : 0 dB
2. Connect the signal generator to the ANTENNA A IN
connector with DC cut fixture.
3. Set the signal generator as follows :
Signal generator setting
FREQUENCY (carrier frequency) :
U30 model ; 578.125 MHz
U42 model ; 650.125 MHz
CE62 model ; 810.000 MHz
CE67 model ; 850.000 MHz
KR model ; 746.125 MHz
RF OUTPUT (Output level) : 60 dBuV
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation)
4. Check that RF Indicator LED lights (green) and "NO
TONE" message appears on LCD (Tuner [1]).
5. Change the RF OUTPUT (output level) of the signal
generator as shown below.
RF OUTPUT (output level) : 15 dBuV
6. Check that RF Indicator LED goes off (green) and "NO
TONE" message disappears on LCD (Tuner [1]).
7. Increase gradually the RF OUTPUT (output level) of
the signal generator. Check that RF OUTPUT (output
± 5 dB at when RF Indicator lights
level) is 25 dBuV
EMF
(green LED) and "NO TONE" message appears on
LCD (Tuner [1]).
RF
RF indicator lights.
UWP Series
(= _53 dBm)
EMF
: ± 5 kHz
(= _98 dBm)
EMF
AF
8. Connect the signal generator to the ANTENNA B IN
connector with DC cut fixture.
9. Perform the procedures 3 to 7 above.
10. Set the channel and FREQUENCY (carrier frequency)
of the signal generator as shown 1 and 2 below.
Perform the procedures 1 to 9 above, for each channel
setting (1 and 2).
1 Channel setting :
U30 model ; Group 03, 32-01 channel (578.125 MHz)
U42 model ; Group 03, 44-01 channel (650.125 MHz)
CE62 model ; Group 04, 63-32 channel (810.000 MHz)
CE67 model ; Group 04, 68-32 channel (850.000 MHz)
KR model ; Group 12, 60-01 channel (746.125 MHz)
Signal generator setting :
FREQUENCY (carrier frequency)
U30 model ; 566.125 MHz
U42 model ; 638.125 MHz
CE62 model ; 798.125 MHz
CE67 model ; 838.125 MHz
KR model ; 740.125 MHz
2 Channel setting :
U30 model ; Group 00, 33-47 channel (589.875 MHz)
U42 model ; Group 00, 45-47 channel (661.875 MHz)
CE62 model ; Group 00, 64-63 channel (821.875 MHz)
CE67 model ; Group 00, 69-64 channel (862.000 MHz)
KR model ; Group 00, 60-47 channel (751.875 MHz)
Signal generator setting:
FREQUENCY (carrier frequency):
U30 model ; 589.875 MHz
U42 model ; 661.875 MHz
CE62 model ; 821.875 MHz
CE67 model ; 862.000 MHz
KR model ; 751.875 MHz
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