— 6 —
Stereo Level Adjustment
Setting:
IF BAND : WIDE
ANT ATT : OFF
Procedure:
1. Tune the set to 98 MHz.
2. Adjust RV251 to the point (moment) when the “STEREO”
indicator will change from going off to going on.
Narrow Gain Adjustment
Setting:
IF BAND : NARROW
ANT ATT : OFF
Procedure:
1. Tune the set to 98 MHz.
2. Set “IF BAND : NARROW” according to the procedure of
“How to switch IF BAND WIDE/NARROW” on page 6.
3. Adjust RV231 to the point (moment) when the “STEREO”
indicator will change from going off to going on.
FM Meter Level Adjustment
Setting:
IF BAND : WIDE
ANT ATT : OFF
Procedure:
1. Tune the set to 98 MHz.
2. Press DISPLAY button to display the digital signal, then adjust
RV221 to be display as “SIG 70dB”.
set
FM RF SSG
FM ANTENNA (75
Ω
)
Modulation : Stereo Standard signal
Output level : 18
µ
V (25dB) (at 75
Ω
open)
set
FM RF SSG
FM ANTENNA (75
Ω
)
Modulation : Stereo Standard signal
Output level : 18
µ
V (25dB) (at 75
Ω
open)
set
FM RF SSG
FM ANTENNA (75
Ω
)
Modulation : Stereo Standard signal
Output level : 3mV (76dB) (at 75
Ω
open)
Stereo Separation Adjustment
Setting:
IF BAND : WIDE
Procedure:
1. Refer to “How to switch IF BAND WIDE/NARROW” on page
6.
L-CH Stereo separation :
A
–
B
R-CH Stereo separation :
C
–
D
The separations of both channels should be equal.
set
FM RF SSG
FM ANTENNA (75
Ω
)
LINE OUT
level meter
Modulation : Stereo Standard signal
Output level : 6mV (76dB) (at 75
Ω
open)
FM stereo
Signal generator
Output channel
L-CH
R-CH
R-CH
L-CH
Level meter
connection
L-CH
L-CH
R-CH
R-CH
Level meter
reading (dB)
A
B
Adjust RV301 for minimum
reading on Level meter
C
D
Adjust RV301 for minimum
reading on Level meter
