Akai QX-3700, Руководство по обслуживанию

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II. Specifications
CONDITIONS OF SPECIFICATION MEASUREMENTS
1. STANDARDS ENVIRONMENTAL CONDITIONS
TEMPERATURE : 23°C
HUMIDITY : 65%
IF NO DOUBT ARISES IN THE JUDEMENT, THE MEASUREMENT CAN BE MADE UNDER
CONDITIONS OF TEMPERATURE 10 TO 35°C AND HUMIDITY 45 TO 85%.
2. REATED POWER SUPPLY AC: 220V 50Hz
3. LOAD IMPEDANCE
SPEAKER OUTPUT : RESISTIVE LOAD AS SPECIFIED.(4 OHM)
PREAMPLIFIER OUTPUT AND RECORDING OUTPUT : 47k OHM RESISTOR (± 5%)
VIDEO OUTPUT: 75 OHM
4. STANDARD OPERATING CONDITION AND METHOD OF MEASUREMENT
a) OPERATION METHOD, SETTING POSITION OF THE UNIT STARTING CONDITION
FOR THE MEASUREMENT SHOULD BE MAINTAINED FOR TESTS OF AMPLIFIER
SECTION AS EIA-RS-490, FOR TEST OF TUNER SECTION AS IHF-T-200.
b) EXCEPT AS OTHERWISE SPECIFIED HEREIN, ALL TESTS SHALL BE MEASURED AT
FRONT CHANNELS AND SET THE SELECTOR POSITION.
c) MODULATION OF FM DODE 75KHz DEVIATION AUDIO 1KHz 75 OHM
d) MODULATION OF FM STEREO MPX. 67.5KHz DEVIATION
7.5KHz PILOT
AUDIO 1 KHz
e) MODULATION OF MW 30% MOD. AUDIO 1KHz
f) REF. OUTPUT LINE OUT
Specifications
1. FM Section
FM Electrical Specifications (Text Point at Line Out)
Measurement Specifications Measurement Condition/Method/Remarks
Description 1HF FM Measu. SSG Others
BPF MODE Freq. Level
FM RANGE 87MHz~108MHz
30dB S/N
≤
20uV Mono 98MHz Adjust
AUTO STOP 30±5dBuV Auto 98MHz Adjust Output level ratio of modulation
SENSITIVITY OFF to ON Pilot : ON, R ch :
ON
OUTPUT LEVEL 0.50±0.1Vrms Yes Mono 98MHz 60dBu Measure both channel test
point at Line Out
STEREO
≥
20dB Yes Auto 98MHz 60dBu
SEPARATION
MEASURED MODE
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