2-43
UWP Series
2. Reference Frequency (4 MHz oscillation
frequency) Adjustment
Equipment and Tools
.
DC power supply
DC output voltage :
+
3.0Vdc
±
0.1 V
.
Frequency counter
Switch and Control Setting
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)
Preparation/Adjustment
1.
Perform this adjustment after removing the two anten-
nas, CPU-421 board, RF-130 board, and CN-3092
board, and with the RF-130 board, CN-3092 board, and
battery terminal mounted to the CPU-421 board.
2.
For connecting the DC power supply, refer to “1.
Current Consumption Check”.
Connection
Procedure
1.
Connect the frequency counter to the Q131 (corrector,
pin No.1)/RF-130 board (A side).
2.
Adjustment
Specification :
Frequency at Q131 (corrector,
pin No.1)/RF-130 board (A side)
= 233.250 MHz
±
0.001 MHz
Adjustment
:
1
CT621/CPU-421 board (A side)
3.
Connect the DC voltmeter to the C341/RF-130 board
(side A).
4.
Adjustment
Specification :
DC voltage of the C341/RF-130
board =1.65
±
0.1 V
Adjustment
:
1
CT341/RF130 board (A side)
Pin No.1
Frequency
counter
RF-130 board (A side)
CT341
Q131
C341
GND
DC
voltmeter
CPU-421 board (B side)
S683
" SET "
CT621
S682
"
_
"
S681
"
+
"
Содержание UWP-V1
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Страница 131: ...4 1 UWP Series 4 1 Section 4 Block Diagrams and Circuit Descriptions ...
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Страница 164: ...Printed in Japan Sony Corporation 2008 6 16 2008 UWP V1 V2 V6 X7 X8 U CE KR E 9 976 937 01 ...