65
5. FM Muting Level Adjustment
Step
Input Signal Source
Connection
Signal
Frequency
Source Signal Output
Level and Modulation
Reception
Frequency
Adjustment
Point
Adjustment
Value
1
Signal generator output to
FM antenna terminal. (75 )
10 V (20 dB)
MONO 1 kHz /
Dev.40 kHz 53.3% (C, K, S)
MONO 1 kHz /
Dev. 75 kHz 100% (U)
R212
Turn the variable resistor R212 to no indication ("TUNED") point. And return that valuable resistor in opposite to the
"TUNED" indicate point.
"TUNED"
indicate on FLD
"TUNED"
indicate on FLD
2
Only Confirm
AUTO
SCAN
Over mentioned level
+3 dB
6. FM STEREO Distortion Adjustment
Step
Input Signal Source
Connection
Signal
Frequency
Source Signal Output
Level and Modulation
Reception
Frequency
Adjustment
Point
Adjustment
Value
1
Signal generator output to
FM antenna terminal. (75 )
500 V (54 dB)
L or R 1 kHz /
Dev. 40 kHz 53.3%
PILOT 19 kHz /
Dev. 6 kHz 8% (C, K, S)
L or R 1 kHz /
Dev. 67.5 kHz 90%
PILOT 19 kHz /
Dev. 6.75 kHz 9% (U)
IF COIL
in
FRONT END
Adjust the L channel with the RF signal modulated only L channel first and confirm the R channel with the RF signal
modulated only R channel.
2
Distortion level
Minimum
at TAPE-OUT
Distortion level
Simimlar
as L ch.
at TAPE-OUT
R ch.
7. FM STEREO Separation Adjustment
Step
Input Signal Source
Connection
Signal
Frequency
Source Signal Output
Level and Modulation
Reception
Frequency
Adjustment
Point
Adjustment
Value
1
R211
2
R211
Output level
Similar as Rch
at TAPE-OUT
channel L
Signal generator output to
FM antenna terminal. (75 )
same specification as
FM STEREO distortion
adjustment.
Input only L channel.
same specification as
FM STEREO distortion
adjustment.
Input only R channel.
Output level
Minimum
at TAPE-OUT
channel R
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
98 MHz
(C, K, S, U)
Only Confirm
