Sony UWP-V1 Service Manual page 25

3. RF Power Output Adjustment
Equipment and Tools
. DC power supply
DC output voltage : +3.0 ± 0.1 Vdc
. DC ammeter
. Power meter (with power sensor)
. Adjustor (SONY Part No. 7-721-052-81)
. MM-SMA conversion connector
(SONY Part No. J-6402-490-A)
. SMA-BNC conversion connector
(SONY Part No. J-6402-480-A)
Switch and Control Setting
Transmission channel
U30 model ; 32-01 channel (578.125 MHz)
U42 model ; 42-01 channel (650.125 MHz)
CE62 model ; Group 00, 63-32 channel (810.000 MHz)
CE67 model ; Group 00, 68-32 channel (850.000 MHz)
KR model ; 60-01 channel (746.125 MHz)
Attenuation setting :
Accumulated time setting : "00 : 00"
RF power output : "H"
n
Note down the setting position before the adjustment.
After the Adjustment complete, set the original position.
Connections
(For connecting the DC power supply, refer to step
"3. Connecting the DC power supply" in Section 2-1-2.)
SMA-BNC conversion connector
MM-SMA conversion connector
UWP Series
0 dB
Power sensor
Power meter
CN301
RF-131 board
(A side)
Procedure
1. Connect the power meter (with power sensor) to the an-
tenna terminal (CN301/RF-131 board) via the MM-
SMA conversion connector and the SMA-BNC conver-
sion connector.
2. Adjust 1CT361 so that the power meter reading meets
the following specification.
Specification : power meter = Maximum
Adjustment : 1CT361/RF-131 board (A side)
(Refer to page 2-3 for the adjustment location.)
3. Adjust 1RV351 so that the power meter reading meets
the following specification.
Specification :
. U30, U42, CE62 and CE67 models :
Power meter = 28 ± 1 mW
. KR model :
+0.5
Power meter = 9
_0.1
Adjustment : 1RV351/RF-131 board (A side)
(Refer to page 2-3 for the adjustment location.)
4. Set the transmission output to "L".
5. Adjust 1RV341 so that the power meter reading meets
the following specification.
Specification :
. U30, U42, CE62 and CE67 models :
Power meter = 5 mW ± 2 mW
. KR model :
Power meter = 1.6 ± 0.6 mW
Adjustment : 1RV341/RF-131 board (A side)
(Refer to page 2-3 for the adjustment location.)
mW
2-5