HCD-CPX22/NXM3
Tuner sectionSAFETY CHECK-OUT
FM stereo, FM/AM superheterodyne tunerAfter correcting the original service problem, perform the following
FM tuner sectionsafety checks before releasing the set to the customer:
Tuning rangeCheck the antenna terminals, metal trim, Ometallized� knobs, screws,
U.S.A. model:87.5 � 108.0 MHz (100-kHz step)and all other exposed metal parts for AC leakage. Check leakage as
Russian model:65.0 � 74.0 MHz (10-kHz step)described below.
(There is no stereo effect)
87.5 � 108.0 MHz (50-kHz step)LEAKAGE
Other models:87.5 � 108.0 MHz (50-kHz step)The AC leakage from any exposed metal part to earth ground and
AntennaFM lead antennafrom all exposed metal parts to any exposed metal part having a
Antenna terminals75 ohms unbalancedreturn to chassis, must not exceed 0.5 mA (500 microamperes).
Intermediate frequency10.7 MHzLeakage current can be measured by any one of three methods.
AM tuner section
Tuning range1. A commercial leakage tester, such as the Simpson 229 or RCA
Pan-American model:530 � 1,710 kHzWT-540A. Follow the manufacturersO instructions to use these
(with the tuning interval set at 10 kHz)instruments.
531 � 1,710 kHz
(with the tuning interval set at 9 kHz)2. A battery-operated AC milliammeter. The Data Precision 245
European, Russian and Saudi Arabian models:digital multimeter is suitable for this job.
531 � 1,602 kHz
(with the tuning interval set at 9 kHz)3. Measuring the voltage drop across a resistor by means of a
Other models:531 � 1,602 kHzVOM or battery-operated AC voltmeter. The Olimit� indication
(with the tuning interval set at 9 kHz)is 0.75 V, so analog meters must have an accurate low-voltage
530 � 1,710 kHzscale. The Simpson 250 and Sanwa SH-63Trd are examples
(with the tuning interval set at 10 kHz)of a passive VOM that is suitable. Nearly all battery operated
AntennaAM loop antennadigital multimeters that have a 2V AC range are suitable. (See
Antenna terminalsExternal antenna terminalFig. A)
Intermediate frequency450 kHz
To Exposed Metal
General
Parts on Set
Power requirements
U.S.A. model:120 V AC, 60 Hz
European and Russian models:
230 V AC, 50/60 Hz
Saudi Arabian model:120 � 127 V or 220 � 240 V AC,AC
50/60 Hz0.15 ?FVoltmeter
1.5 k &
Adjustable with voltage selector(0.75 V)
Other models:120 V, 220 � 240 V AC, 50/60 Hz
Adjustable with voltage selector
Power consumption
U.S.A. model:65 wattsEarth Ground
European and Russian models: 65 watts
0.3 watts (in Power Saving mode)Fig. A. Using an AC voltmeter to check AC leakage.
Other models:65 watts
Dimensions (w/h/d) incl. projecting parts and controls
Amplifier/Tuner/Tape/CD section:
Approx. 230 x 292 x 355 mm
Mass
Amplifier/Tuner/Tape/CD section:
Approx. 6.1 kg
Supplied accessoriesRemote Commander (1)
Size AA (R6) batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Speaker pads (8)
Speaker cords
Design and specifications are subject to change without notice.
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