Fm Muting Level Adjustment; Fm Stereo Distortion Adjustment; Fm Stereo Separation Adjustment - Marantz SR8000 Service Manual

6. FM Muting Level Adjustment

Turn the variable resistor R212 to no indication ("TUNED") point. And return that valuable resistor in opposite to the
"TUNED" indicate point.
Input Signal Source
Step
Connection
Signal generator output to
1
FM antenna terminal. (75 )
2

7. FM STEREO Distortion Adjustment

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.
Input Signal Source
Step
Connection
Signal generator output to
1
FM antenna terminal. (75 )
2

8. FM STEREO Separation Adjustment

Input Signal Source
Step
Connection
Signal generator output to
1
FM antenna terminal. (75
2
Signal Source Signal Output
Frequency Level and Modulation
Level 10 V (20 dB)
MONO 1 kHz /
Dev.40 kHz 53.3% (K, N, S)
98 MHz
MONO 1 kHz /
Dev. 75 kHz 100% (U)
Over mentioned level
Signal Source Signal Output
Frequency Level and Modulation
Level 500 V (54 dB)
L channel 1 kHz /
98 MHz Dev. 40 kHz 53.3%
PILOT 19 kHz /
Dev. 6 kHz 8% (K, N, S)
R channel 1 kHz /
Dev. 67.5 kHz 90%
PILOT 19 kHz /
Dev. 6.75 kHz 9% (U)
Signal Source Signal Output
Frequency Level and Modulation
same specification as
FM STEREO distortion
98 MHz
)
adjustment.
Input only L channel.
same specification as
98 MHz
FM STEREO distortion
adjustment.
Input only R channel.
Reception
Frequency
98 MHz
(P2)
AUTO
+3 dB SCAN
Reception
Frequency
98 MHz
(P2)
Reception
Frequency
98 MHz
(P2)
98 MHz
(P2)
60
Adjustment Adjustment
Point Value
"TUNED"
R212
indicate on FLD
"TUNED"
Only Confirm
indicate on FLD
Adjustment Adjustment
Point Value
IF COIL Distortion level
in Minimum
FRONT END at TAPE-OUT
L channel
Distortion level
Simimlar
as L channel
Only Confirm
at TAPE-OUT
R channel
Adjustment Adjustment
Point Value
Output level
Minimum
R211
at TAPE-OUT
R channel
Output level
Similar as R ch.
R211
at TAPE-OUT
R channel