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TRUMPET preset and then UPPER DRAWBARS preset.
The musical quality should be identical.
2. Clarinet. Set upper drawbars to 008080800. Press
CLARINET preset and then UPPER DRAWBARS preset.
The musical quality should be identical.
3. Full organ. Set up upper drawbars to 868868446. Press
FULL ORGAN preset and the UPPER DRAWBARS
preset. The musical quality should be identical.
g. Make lower manual preset listening check. Hold down F, A, C
chord near center of lower manual.
1. Set up lower drawbars to 6644222.
2. Press ENSEMBLE preset and then LOWER DRAWBARS
preset. The musical quality should be identical.
h. Percussion cutoff control and output checks.
1. Cut-off: With only THIRD HARMONIC, FAST DECAY, and
UPPER DRAWBARS tablets depressed and all drawbars
pushed in, hold down the lowest C key on upper manual
and adjust percussion cut-off control on preamplifier
chassis to point at which output signal is just barely
audible.
2. Output voltages: With only UPPER DRAWBARS and
SECOND HARMONIC tablets depressed, press the
lowest C key on upper manual. Output voltages across
speakers should be between 3.0V and 5.5V rms. With
PERCUSSION SOFT tablet depressed, output should be
1.5V to 2.8Vrms.
3. Vibrato check: Depress FULL ORGAN tab. Hold down
F, A, C chord near center of upper manual. Depress
VIBRATO SMALL tab and observe vibrato effect. Then, in
addition, depress VIBRATO NORMAL tab. Vibrato effect
should increase. In addition, press VIBRATO CHORUS
tab. Vibrato effect should become more pronounced.
NOTE 4–4–3–A
Later organs, Figures 5-2 through 5-4, are equipped with vibrato
width potentiometer R131. Adjust if vibrato effect is too narrow or too
broad.
4. Reverberation check: Depress FULL ORGAN tab. Hold
down F, A, C chord near center of upper manual. Add
REVERB I tab. Observe that reverberation is heard as
chord is played and released.
Add REVERB II tab. Reverberation should be increased
relative to REVERB I tab as chord is played and
released.
5. Microphonics and Hum check: Tap each tube and
replace it if there is ring or howl in the speaker with
expression pedal maximum and VOLUME SOFT tab not
depressed.
Hum in speakers with expression pedal maximum and
VOLUME SOFT tablet not depressed must be very low in
volume and not measure more than 15mV rms. If hum is
excessive, see para graph 4-22.
NOTE 4–4–5–A
On L–100–2 the SILENT-SOUND tab on Rhythm II must be in SILENT
position.
4–5 VIBRATO
To check vibrato, proceed according to the following:
Pull out upper manual 2’ drawbar to position 8. Place all other
drawbars fully in to 0. Depress the UPPER DRAWBARS tab.
a. Remove the brown RCA cable from the BN (Brown) RCA
jack located on the preamplifier chassis. Connect an
Содержание L-100 Series
Страница 1: ......
Страница 6: ......
Страница 9: ...Page 9 Figure 1 4 Block Diagram L 100 Series Figure 1 5 Typical Tone Generator...
Страница 38: ...Page 38 This page intentionally left blank...
Страница 40: ...Page 40 Figure 5 3 Schematic Diagram L 100A Percussion Unit Figure 5 3A Parts Layout L 100A Percussion Unit...
Страница 44: ...Page 44 Figure 5 7 Wiring Diagram L 100 Organ...
Страница 45: ...Page 45 Figure 5 8 Wiring Diagram L100 1 and L 100 2 Organs...
Страница 46: ...Page 46 Figure 5 9 Wiring Diagram L 200 Organ...
Страница 49: ...Page 49 Figure 5 13 Parts Layout AO 41 Vibrato Amplifier...
Страница 50: ...Page 50 Figure 5 14 Parts Layout AO 47 126 000023 Vibrato Amplifier...
Страница 51: ...Page 51 Figure 5 14A Comparison Between AO 41 and AO 47 Vibrato Amplifiers...
Страница 52: ...Page 52 Figure 5 15 Parts Layout AO 42 117 000019 Percussion Amplifier...
Страница 53: ...Page 53 Figure 5 16 Parts Layout AO 43 126 000017 Power Amplifier...
Страница 54: ...Page 54 Figure 5 17 Power Amplifier Fuse Location Canadian 101 000130...
