
3-8
WRR-855B
(7) Check first that indication ''L" (after the frequency
indication) on the LCD has disappeared, and then
press the S701 switch on the CPU-342 board.
n
If the ''L" indication does not disappear from the LCD
(on ''A" area: refer to the previous step (5) ) (when the
RF input level is lower than the reference level) or ''H"
is displayed (when the RF input level is higher than the
reference level) , perform the following adjustment.
1
Check the RF output level and frequency of the
signal generator (perform re-setting if necessary),
and repeat from step (1).
2
If the above conditions (the ''L" indication does
not disappear, or ''H" is displayed) remain even
after re-adjustment, perform the ''3-2-1. TUN-8
Board Adjustment" from item 1 to item 3.
(8) Indication on LCD (display) appears as follows:
LCD :
(9) Connect the signal generator to the ANT IN B connec-
tor.
(10)Check first that indication ''L" (after the frequency
indication) on LCD has disappeared, and then press
the S701 switch on the CPU-342 board.
(11)Indication on LCD (display) appears as follows:
LCD :
(12)Following the guide shown under (11) , connect the
signal generator to the ANT IN A connector.
Set the FREQUENCY (carrier frequency) of the signal
generator as follows:
CE21 model; 482.000 MHz
CE33 model; 578.000 MHz
CE62 model; 810.000 MHz
CE67 model; 850.000 MHz
U14 model; 482.000 MHz
U30 model; 578.000 MHz
U42 model; 650.000 MHz
U62 model; 770.000 MHz
U66 model; 794.000 MHz
(13)Check first that indication ''L" (after the frequency
indication) on LCD has disappeared, and then press
the S701 switch on the CPU-342 board.
(14)Indication on LCD (display) appears as follows:
LCD :
(15)Connect the signal generator to the ANT IN B connector.
(16)Check first that indication ''L" (after the frequency
indication) on LCD has disappeared, and then press
the S701 switch on the CPU-342 board.
(17)Indication on LCD (display) appears as follows:
LCD :
(18)Following the guide shown under (17) , connect the
signal generator to the ANT IN A connector. Set the
FREQUENCY (carrier frequency) of the signal
generator as follows:
CE21 model; 493.000 MHz
CE33 model; 589.000 MHz
CE62 model; 821.000 MHz
CE67 model; 861.000 MHz
U14 model;
493.000 MHz
U30 model;
589.000 MHz
U42 model;
661.000 MHz
U62 model;
781.000 MHz
U66 model;
805.000 MHz
(19)Check first that indication ''L" (after the frequency
indication) on LCD has disappeared, and then press
the S701 switch on the CPU-342 board.
(20)Indication on LCD (display) appears as follows:
LCD :
(21)Following the guide shown under (20) , connect the
signal generator to the ANT IN B connector.
(22)Check first that indication ''L" (after the frequency
indication) on LCD has disappeared, and then press
(b C1L)
(A C2L)
(b C2L)
(A C3L)
(b C3L)
Summary of Contents for WRR-855B
Page 1: ...UHF SYNTHESIZED TUNER UNIT WRR 855B SERVICE MANUAL 1st Edition Revised 2 ...
Page 4: ...2 WRR 855B 8 Schematic Diagrams TUN 8 8 1 CPU 342 8 8 DP 236 8 10 SW 814 8 10 ...
Page 10: ...1 6 WRR 855B Sony Corporation Printed in Japan ...
Page 38: ......
Page 58: ......
Page 67: ...7 1 WRR 855B 7 1 Section 7 Board Layouts ...
Page 83: ......
Page 84: ...Printed in Japan Sony Corporation 2006 6 16 2001 WRR 855B U CE E 9 976 898 03 ...