Sony WRU-806B Service Manual page 12

(7) Check first that indication "L" of "AC1L" on the LCD
(WRU-806B, Tuner [1]) has disappeared, and then
press the "CH" button on the front panel (WRU-806B,
Tuner [1]).
n
If the "L" indication does not disappear from the LCD
(on A area: refer to the previous procedure (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 sig-
nal generator (perform re-setting if necessary), and
repeat from procedure (1).
2 If the above conditions (the "L" indication does not
disappear, or "H" is displayed) remain even after re-
adjustment, it is necessary to check the WRU-806B
Tuner Unit.
(8) Indication on the LCD (WRU-806B, Tuner [1]) ap-
pears as follows :
LCD :
A C2 L
(9) Set the FREQUENCY (carrier frequency) of the signal
generator as follows :
FREQUENCY (carrier frequency) :
CE38 model ; 618.000 MHz
U30 model ; 578.000 MHz
U42 model ; 650.000 MHz
(10)Check first that indication "L" of "AC2L" on the LCD
(WRU-806B, Tuner [1]) has disappeared, and then
press the "CH" button on the front panel (WRU-806B,
Tuner [1]).
(11)Indication on the LCD (Tuner [1]) appears as follows :
LCD :
A C3 L
(12)Set the FREQUENCY (carrier frequency) of the signal
generator as follows :
FREQUENCY (carrier frequency) :
CE38 model ; 629.000 MHz
U30 model ; 589.000 MHz
U42 model ; 661.000 MHz
2-4
(A C2 L)
(A C3 L)
(13) Check first that indication "L" of "AC3L" on the LCD
(WRU-806B, Tuner [1]) has disappeared, and then press the
"CH" button on the front panel (WRU-806B, Tuner [1]).
(14)Connect the signal generator to the ANTENNA B IN
connector with DC cut fixture.
(15)Indication on LCD (WRU-806B, Tuner [1]) appears as
follows :
LCD :
B C1 L
(16)Set the FREQUENCY (carrier frequency) of the signal
generator as follows :
FREQUENCY (carrier frequency) :
CE38 model ; 607.000 MHz
U30 model ; 567.000 MHz
U42 model ; 639.000 MHz
(17) Check first that indication "L" of "BC1L" on the LCD
(WRU-806B, Tuner [1]) has disappeared, and then press the
"CH" button on the front panel (WRU-806B, Tuner [1]).
(18)Indication on the LCD (WRU-806B, Tuner [1]) ap-
pears as follows :
LCD :
B C2 L
(19)Set the FREQUENCY (carrier frequency) of the signal
generator as follows :
FREQUENCY (carrier frequency) :
CE38 model ; 618.000 MHz
U30 model ; 578.000 MHz
U42 model ; 650.000 MHz
(20)Check first that indication "L" of "BC2L" on the LCD
(WRU-806B, Tuner [1]) has disappeared, and then
press the "CH" button on the front panel (WRU-806B,
Tuner [1]).
(21)Indication on the LCD (WRU-806B, Tuner [1]) ap-
pears as follows :
LCD :
B C3 L
(B C1 L)
(B C2 L)
(B C3 L)
WRU-806B