
3-13
WRR-855B
Switch and Control Setting
Channel setting:
CE21 model; Group 00, 22-32 channel (482.000 MHz)
CE33 model; Group 00, 34-32 channel (578.000 MHz)
CE62 model; Group 00, 63-32 channel (810.000 MHz)
CE67 model; Group 00, 68-32 channel (850.000 MHz)
U14 model; Group 00, 16-01 channel (482.125 MHz)
U30 model; Group 00, 32-01 channel (578.125 MHz)
U42 model; Group 00, 44-01 channel (650.125 MHz)
U62 model; Group 00, 64-01 channel (770.125 MHz)
U66 model; Group 00, 68-01 channel (794.125 MHz)
MUTING: OFF
Procedure
(1) Connect the signal generator to the ANT IN (A or B)
connector which showed the better S/N at the input of
10 dB
µ
V
EMF
( =
_
103 dBm) under ''7. S/N Check".
Set the signal generator as follows:
Signal generator setting
FREQUENCY (Carrier frequency) :
CE21 model; 482.000 MHz
CE33 model; 578.000 MHz
CE62 model; 810.000 MHz
CE67 model; 850.000 MHz
U14 model;
482.125 MHz
U30 model;
578.125 MHz
U42 model;
650.125 MHz
U62 model;
770.125 MHz
U66 model;
794.125 MHz
RF OUTPUT (Output level): 5 dB
µ
V
EMF
(=
_
108 dBm)
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation)
:
±
5 kHz
(2) Check that the 1 kHz waveform can be distinguished
from the waveforms monitered on the oscilloscope.
(3) Turn
1
RV205/TUN-8 board fully counterclockwise.
(4) Adjustment
Specificaton :
DC voltage of NOISE terminal
(land)/CPU-342 board changes from
''H" (about 4.8 Vdc) to ''L" (about 0
V) level.
Adjustment :
1
RV205/TUN-8 board
Turn
1
RV205 slowly clockwise for
adjustment.
9. Tone Squelch Check
Equipment and Tools
• DC power supply:
+
7.0
±
0.1 Vdc
• Signal generator
• Function generator
• DC voltmeter
• Power supply/AF OUT connector
(Refer to the ''How to make power supply/AF OUT
connector" on page 3-1.)
Connection
Same as ''5. FM Detector Adjustment".
Switch and Control Setting
Channel setting:
CE21 model; Group 00, 22-32 channel (482.000 MHz)
CE33 model; Group 00, 34-32 channel (578.000 MHz)
CE62 model; Group 00, 63-32 channel (810.000 MHz)
CE67 model; Group 00, 68-32 channel (850.000 MHz)
U14 model;
Group 00, 16-01 channel (482.125 MHz)
U30 model;
Group 00, 32-01 channel (578.125 MHz)
U42 model;
Group 00, 44-01 channel (650.125 MHz)
U62 model;
Group 00, 64-01 channel (770.125 MHz)
U66 model;
Group 00, 68-01 channel (794.125 MHz)
MUTING: OFF
Procedure
Step1:
Adjustment
(1) Connect the signal generator to the ANT IN A connec-
tor, and set the signal generator as follows:
Signal generator setting
FREQUENCY (Carrier frequency) :
CE21 model; 482.000 MHz
CE33 model; 578.000 MHz
CE62 model; 810.000 MHz
CE67 model; 850.000 MHz
U14 model; 482.125 MHz
U30 model; 578.125 MHz
U42 model; 650.125 MHz
U62 model; 770.125 MHz
U66 model; 794.125 MHz
RF OUTPUT (Output level): 60 dB
µ
V
EMF
( =
_
53 dBm)
MODULATION (Modulation frequency): 32.768 kHz
(32.768 kHz must be set by connecting Function
generator.)
DEVIATION (Frequency deviation):
±
1.4 kHz
Содержание WRR-855B
Страница 1: ...UHF SYNTHESIZED TUNER UNIT WRR 855B SERVICE MANUAL 1st Edition Revised 2 ...
Страница 4: ...2 WRR 855B 8 Schematic Diagrams TUN 8 8 1 CPU 342 8 8 DP 236 8 10 SW 814 8 10 ...
Страница 10: ...1 6 WRR 855B Sony Corporation Printed in Japan ...
Страница 38: ......
Страница 58: ......
Страница 67: ...7 1 WRR 855B 7 1 Section 7 Board Layouts ...
Страница 68: ...7 2 WRR 855B 7 2 TUN 8 Suffix 11 TUN 8 Suffix 11 TUN 8 A SIDE SUFFIX 11 TUN 8 B SIDE SUFFIX 11 ...
Страница 69: ...7 3 WRR 855B 7 3 TUN 8 Suffix 22 TUN 8 Suffix 22 TUN 8 A SIDE SUFFIX 22 TUN 8 B SIDE SUFFIX 22 ...
Страница 70: ...7 4 WRR 855B 7 4 CPU 342 Suffix 11 CPU 342 Suffix 11 CPU 342 A SIDE SUFFIX 11 CPU 342 B SIDE SUFFIX 11 ...
Страница 71: ...7 5 WRR 855B 7 5 CPU 342 Suffix 21 CPU 342 Suffix 21 CPU 342 A SIDE SUFFIX 21 CPU 342 B SIDE SUFFIX 21 ...
Страница 83: ......
Страница 84: ...Printed in Japan Sony Corporation 2006 6 16 2001 WRR 855B U CE E 9 976 898 03 ...