Akai QX-3700, Service Manual

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2. MW Section
i. MW Measurement Condition
(a) Antenna Input : Loop Antenna
(b) Measurement Frequency : Lower Center Upper
All versoin 603kHz 1008kHz 1404kHz (In case of no comment, measure at
center frequency.)
(c) Modulation Frequency : In case of no comment, use 1kHz 30% modulation
(e) Selectivity : Arithmetical mean of 2 values at ±10kHz deviated frequency
(f) Measurement Point : Test Point (At line out)
ii. MW Electrical Specifications
Measurement Specifications Measurement Condition/Method/Remarks
Description Meas.Freq. SG Level Others
AM RANGE 522KHz~1611KHz
26dB S/N
≤
5.0mV/M Center Adjust Output level ratio of
modulation OFF to ON
AUTO STOP 20mV/M Center Adjust Minimum input level of Auto Stop
SENSITIVITY
≤
Auto Stop Sensitivity threshold
≤
5.0mV/M
OUTPUT LEVEL 150-500MVrms Center 10mV/M Measure both channel test point
at Line Out
3. VCD Section
VCD Measurement Condition
Measurement Point: At line out or video out
1. Electrical Specifications
No. Test Item Unit Specification
1 Video Output Level Vp-p 1.0±0.2
2 Audio Output Level Vrms 2.0+0.2/-1.0
3 Audio of Resp (20Hz~20KHz) dB
≤
±3.5
4 Audio S/N (A-WTD) dB
≥
70
5 Distortion & Noise (1KHz) dB
≤
-50
6 Cross Talk L-R (Fundamental) dB
≥
60
2. Mechanical Specifications
No. Test Item Unit Specification
1 Reading Time S <20 (S)
2 Ball Bound:
Drop 8g Super Ball from 3cm Height No AV Noise
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