Alignment Procedures - Onkyo TX-3000 Service Manual

TX-3000
ALIGNMENT PROCEDURES
INSTRUMENTS REQUIRED GENERAL ALIGNMENT CONDITIONS
1. DC Voltmeter 1. Signal input should be kept as low as possible.
2. AM Sweep Generator 2. Standard modulation is 400Hz 30% (AM), 1kHz 100%
3. AM/FM Signal Generator (FM MONO), pilot 9% sub and main 91%(FM STEREO).
4. AC VIVM 3. Standard knob position
5. Oscilloscope SPEAKERS ........-....-2222200250200 23s A
6. Monitorscope BASS, TREBLE & BALANCE ............ Center
7. Distortion Analyzer HIGH FILTER..............-..22- 0005 OFF
8. Stereo Modulator MODE ............. 020200 e teenies STEREO
9. Frequency Counter DE-EMPHA ..............-.-..... NORMAL
LOUDNESS... ee ee es OFF
MUTING LOCK ...................-5.. OFF
TAPE 1,2............0 00 eee OFF (SOURCE)
(1) AM IF ALIGNMENT
1. Set SELECTOR switch to AM.
2. Set radio dial to quiet point.
(2) AM RF ALIGNMENT
Loop Antenna Bar Antenna
=
AM Signal
60cm — \
Output
|
| aM Sil [4 XL Unit AC VTVM Oscilloscope
Lower end
L153 Maximum
eee eee") us | sn Repeat steps | and
1680kHz Upper end TC152 Maxi 2 as necessary
400Hz 30% (1680kHz) axmarn
600kHz ,
1400kHz ,
(3) FM FRONT END ALIGNMENT
1. Set SELECTOR switch to FM.
2. Connect FM Signal Generator to 300—ohm antenna terminals.
TP
Repeat steps 3 and
4 as necessary