Onkyo TX-4500 - AM RF Alignment; FM Front End Alignment

AM RF ALIGNMENT
Confirm start point of dial pointer before alignment.
Loop Antenna AM Bar Antenna
Geom —o
8—ohm load
AM Signal ; AC ;
Generator ->——— M | unic [3 vivé |__| Oscilloscope
Connect AC VTVM across LEFT SPEAKER terminals.
reading
AM Signal ,
TX—4500
515KHz 515KHz
400Hz
Lower
LIOS
Mecirmum
30%
mod.
end
NMO—2504
Repeat step | mn)
1680KHz
2
aS
necessary
Upper
end
1680KHz
400Hz
30% mod.
600KHz
400Hz.
30% mod.
1400KHz
400Hz
30% mod.
Maximum
L001 LOO!
600KHz NMA~2521 NMA~2520 Maximum
Cine step 3 and
4 as necessary )
1400KHz TC—2 TC—2 Maximum
FM FRONT END ALIGNMENT
Set SELECTOR switch to FM.
8—ohm load resistor
Oscilloscope
Connect AC VIVM across LEFT SPEAKER terminals.
Connect FM Signal Generator
to 300—ohm ANTENNA
Distortion
Terminals.
Analyzer
fig—16
— 13—