Goodmans GMS880, Service Manual

Page: 7 / 59

ALIGNMENT PROCEDURES
6
FM RECEIVER PERFORMANCE DATA
2000mW NORMAL)
Band: FM
Supply Voltage: DC 12V /AC: Measured By:
Standard Output: 50 mw
Dummy Load: 4 ohm Approved By:
Modulation: 1 KHz 22.5 KHZ DEV
Measuring Items Unite Norm Limit Sample1 Sample2
Max. 90 MHz db
Sensitivity 98 MHz db
106 MHz db
30db Quieting 90 MHz db 20 26
Sensitivity 98 MHz db 20 26
106 MHz db 20 26
Image Rejection AT 106 MHz db 25 20
IF Rejection AT 90 MHz db 50 42
AFC Holding 1mv I/p +Side KHz 200 400
Range-3db -Side KHz 200 400
-3bd Limiting Sens . 1mv I/P db 18 22
AM Suppression 1mv I/P db 35 30
S/N 1mv I/P db 45 40
Stereo Sens db 15 22
Stereo Lamp On Sens. db 20 24
Separation R/L db 28 22
Audio Freq. Low Hz 80 100
Response -3db High KHz 6 5
Modulation Hum 1 mv I/P db 42 36
Hum & Noise(min.vol.) mv 1 3
THD10% Output Power mW
Њ
1800
Max. Output(40KHz DEV) mW
Њ
1800
Total Harmonic Distortion 1 mv I/P % 1 3
OSC Drop Out 1 mv I/P V 160 180
Current No signal mA
Consumption Max mA
Frequency Range Low MHz 87.35 +/-0.4
High MHz 108.35 +0.5 -0.2
IF Frequency MHz 10.7 +/-0.1