Marantz 2600 - Scope Display Adjustment; AM Tuning Display Adjustment; FM Multipath Display Adjustment; Voltage Conversion for European Model

6. SCOPE DISPLAY ADJUSTMENT
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. Set the SELECTOR switch to the AUX position.
2. Set the SCOPE LEVEL and VOLUME controls to the
10.
11.
FCCW position.
Depress the SCOPE DISPLAY ON and AUDIO push-
switches in.
Adjust the CENTERING controls until the spot comes
in the center of the small circle.
Adjust the BRIGHT control (ROO2) on the rear panel
until the brightness becomes dark a little.
Adjust the FOCUS control so that the spot may be-
come smaller and circular.
. Turn the SCOPE LEVEL control to the FCW.
. Connect a 150 mV, 1 kHz signal to the AUX INPUTS
R jack and adjust R928 (H. GAIN) until the horizontal
deflection is around 3 cm.
In turn, connect the same signal to the L jack and
similarly, adjust R927 (V. GAIN) until the vertical
deflection is around 3 cm.
Set the CENTERING control to the 12-0’clock posi-
tion and adjust R925 (H. CENTER) until the spot
comes in the horizontal deflection center.
Similarly, adjust R926 (V. CENTER) until the spot
comes in the vertica! deflection center.
For 110V Operation For 120V Operation
6.1 AM TUNING DISPLAY ADJUSTMENT
1. Depress the SCOPE DISPLAY ON and TUNING push-
switches. Set the SELECTOR switch to the AM position.
2. Adjust R931 until the spot comes in the center below
the base line without tuning into a station.
6.2 FM TUNING DISPLAY ADJUSTMENT
1. Depress the scope DISPLAY ON and TUNING push-
switches. Set the SELECTOR switch to the FM position.
2. Connect FM signal input of 100 kuV (98 MHz, 400 Hz,
30% mod.) to the FM ANTENNA terminals and adjust
R278 so that the spot does not frame out.
6.3 FM MULTIPATH DISPLAY ADJUSTMENT
1. Adjust R280 to obtain full deflection of the trace within
both side marks, applying FM signal (1 kuV, 400 Hz,
100% mod.) to the FM ANTENNA terminals.
7. VOLTAGE CONVERSION FOR EUROPEAN MODEL
The European version of the Model 2600 is equipped with
a universal power transformer that may be adjusted to
operate at 110 V, 120 V, 220 V, or 240 V AC at 50 to
60 Hz. To convert the unit to a different power source
voltage, reposition conversion plug at shown in Figure 1.
CAUTION: DISCONNECT POWER SUPPLY CORD
FROM AC OUTLET BEFORE CONVERT-
ING VOLTAGE.
For 220V Operation
For 240V Operation
Figure 1. Voltage Conversion Chart