Sony UWP-V1, Service Manual

Page: 71 / 164

2-51
UWP Series
(3) Frequency Characteristic Check
1. Set the URX-P2 as follows :
Channel setting :
U30 model ;Group 03, 3201 channel (578.125 MHz)
U42 model ;Group 03, 4401 channel (650.125 MHz)
CE62 model ;Group 04, 6332 channel (810.000 MHz)
CE67 model ;Group 04, 6832 channel (850.000 MHz)
KR model
;Group 12, 6001 channel (746.125 MHz)
RF Squelch : OFF (For setting, refer to “Setting the
Squelch OFF mode” on page 2-42)
Monitor level : MON.01 (minimum value)
2. Connect the audio analyzer to the OUTPUT connector
via MIC amp.
3. Connect the signal generator to the CN201/RF-130
board with the MM-SMA conversion connector and the
RF adjusting cable.
4. 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 dB
u
V
EMF
(=
_
53 dBm)
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation)
:
±
20 kHz
5. Read the output level of the OUTPUT (indication of
the audio analyzer).
This level is specified to be 0 dB.
6. Change the MODULATION (modulation frequency) of
the signal generator as follows, and check the output
level of the OUTPUT connector is set also as follows.
n
40 Hz and 18 kHz modulation frequency must be set by
using the function generator.
MODULATION frequency TUNER OUTPUT 1
of signal generator connector output level
40 Hz + 2.0
±
1.0 dB
18 kHz _ 34.0
±
2.5 dB
7. Connect the signal generator to the CN101/RF-130
board with the MM-SMA conversion connector and the
RF adjusting cable.
8. Perform the procedures 4 to 6.
(4) Distortion Ratio Check
1. Set the URX-P2 as follows :
Channel setting :
U30 model ;Group 03, 3201 channel (578.125 MHz)
U42 model ;Group 03, 4401 channel (650.125 MHz)
CE62 model ;Group 04, 6332 channel (810.000 MHz)
CE67 model ;Group 04, 6832 channel (850.000 MHz)
KR model
;Group 12, 6001 channel (746.125 MHz)
RF Squelch : OFF (For setting, refer to “Setting the
Squelch OFF mode” on page 2-42)
Monitor level : MON.01 (minimum value)
2. Connect the audio analyzer to the OUTPUT connector
via MIC amp.
3. Connect the signal generator to the CN201/RF-130
board with the MM-SMA conversion connector and the
RF adjusting cable.
4. 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 dB
u
V
EMF
(=
_
53 dBm)
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation)
:
±
36 kHz
5. Set the audio analyzer to the distortion mode, and check
that the distortion ratio is less than 0.8 %.
6. Change the MODULATION (modulation frequency) of
the signal generator as shown below.
MODULATION (modulation frequency) : 10 kHz
Check that the distortion ratio is less than 4 %.
n
10 kHz modulation frequency must be set by using the
function generator.
7. Connect the signal generator to the CN101/RF-130
board with the MM-SMA conversion connector and the
RF adjusting cable.
8. Perform the procedures 4 to 6 above.