Sony UWP-V1 Service Manual page 54

(1) Output Level 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)
RF Squelch : OFF (For setting, refer to "Setting the
Squelch OFF mode" on page 2-29)
. MB-X6/MB-806 Rear panel
ATT (ANTENNA A, B) switch :0 dB
OUTPUT LEVEL switch :
2. Connect the audio analyzer to the TUNER OUTPUT 1
connector via MIC amp.
3. Connect the signal generator to the ANTENNA A IN
connector with DC cut fixture.
4. Set the signal generator as follows :
Signal generator setting
; 578.125 MHz ± 1 kHz
U30 model
; 650.125 MHz ± 1 kHz
U42 model
CE62 model ; 810.000 MHz ± 1 kHz
CE67 model ; 850.000 MHz ± 1 kHz
; 746.125 MHz ± 1 kHz
KR model
RF OUTPUT (Output level) : 60 dBuV
MODULATION (Modulation frequency) : 100 Hz
DEVIATION (Frequency deviation)
5. Check that the TUNER OUTPUT 1 connector output
level is _20 dBm ± 1.0 dB (at 600 Z loaded).
6. Connect the audio analyzer to the MIX OUTPUT con-
nector via MIC amp.
7. Check that the MIX OUTPUT connector output level is
_20 dBm ± 1.0 dB (at 600 Z loaded).
8. Set the MIX OUTPUT LEVEL switch is _58 dBm (MIC).
9. Check that the TUNER OUTPUT 1 connector output
level is _58 dBm ± 1.5 dB (at 600 Z loaded).
10. Check that the MIX OUTPUT connector output level is
_58 dBm ± 1.5 dB (at 600 Z loaded).
11. Connect the signal generator to the ANTENNA B IN
connector with DC cut fixture.
12. Perform the procedures 4 to 10 above.
n
The output level difference between the ANTENNA A
IN side and the ANTENNA B IN side should be within
0.5 dB.
2-34
(2) S/N 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 :
LINE (_20 dBm)
2. Connect the audio analyzer to the TUNER OUTPUT 1
3. Connect the signal generator to the ANTENNA A IN
4. Set the signal generator as follows :
(= _53 dBm)
EMF
: ± 5 kHz
5. Read the output level of the TUNER OUTPUT 1 con-
6. Turn OFF the MODULATION (modulation frequency)
7. Check that output level of the TUNER OUTPUT 1 is 62
8. Change the RF OUTPUT (output level) of the signal
. 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)
RF Squelch : OFF (For setting, refer to "Setting the
Squelch OFF mode" on page 2-29)
. MB-X6/MB-806 Rear panel
ATT (ANTENNA A, B) switch :0 dB
connector via MIC amp.
connector with DC cut fixture.
Signal generator setting
FREQUENCY (carrier frequency) :
; 578.125 MHz ± 1 kHz
U30 model
; 650.125 MHz ± 1 kHz
U42 model
CE62 model ; 810.000 MHz ± 1 kHz
CE67 model ; 850.000 MHz ± 1 kHz
; 746.125 MHz ± 1 kHz
KR model
RF OUTPUT (Output level) : 60 dBuV
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation)
nector (Audio analyzer indication level).
This level is specified to be 0 dB.
of the signal generator (No modulation).
dB or more (S/N is _62 dB or less with A-weighted fil-
ter) as compared with the level of procedure 5 above.
generator as shown below.
RF OUTPUT (output level) : 15 dBuV
(= _53 dBm)
EMF
: ± 5 kHz
(= _98 dBm)
EMF
UWP Series