Sansui 6060 - 3-2. FM & MPX Adjustment & Alignment; 1) FM IF Adjustment & Tracking

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3-2. FM & MPX Adjustment & Alignment (See Fig. 3-3 on page 5)
Note: 1. Selector
2. FM Muting Switch
GENESCOPE
1) FM IF Adjustment & Tracking
AUDIO OSC
QO TAPE
Oo O
O
3. Connection.
4.7kQ
IN
Sansui_|
dearbys Connect the output of genescope to
TP through 100pF ceramic capacitor.
10pF
Q
DETECTOR PROBE BLOCK
FEED SIGNAL MEASURE ADJUST
STEP | SUBJECT FROM 7 | OUTPUT ADJUST FOR CONDITION
1. | IF Coil Output 60dB TPO1 TPO3 TO1 Max. IF
Genescope F-2590 F-2590 F-2590 waveform
Use Detector
Probe
2. | Discriminator | Output 50dB Same as TPO4 Center indication
Coil Genescope above F-2590 on tune meter TUNE
br
TO2
Max. linearity of
S curve
Steep linearity of *
S curve ir
T03 Set output wave
to dip point
(It’s minimum Wi
F-2590 | distortion) wi
3. | 90MHz | 99MHz ANT terminal | REC OUT LO3 Max. Output
Dial ANT Input 60dB 3002 L or R-CH +*F+2590
Calibration 400Hz (100% MOD) VTVM & Scope
. FM SSG
106MHz 106MHz ; Same as Same as above | TCO3 Same as above
Dial ANT Input 60dB above F-2590
Calibration 400Hz (100% MOD)
FM SSG
4, 9OMHz 90MHz Same as Same as above | L01,L02 | Same as above
RE Adi ANT Input 60dB above F-2590
J. 400Hz (100% MOD)
FM SSG
106MHz 106MHz Same as Same as above | TCO1 Same as above
RF Adj. ANT Input 60dB above TCO2
400Hz (100% MOD) F-2590
FM SSG
5. Signal Meter | 988MHz Same as Signal Meter VRO2 4.3 on Meter
Volume ANT Input 60dB above F-2590
400Hz (100% MOD)
FM SSG