Goodmans GMS880, Service Manual

Page: 9 / 59

ALIGNMENT PROCEDURES
8
CASSETTE PLAYBACK PERFORMANCE DATA
2000mW NORMAL
Supply Voltage: DC12V/AC:
Standard Output: 50
mw Measured By:
Dummy Load: 4 Ohm
0 DB = 1V Tone : Center Approved By:
Tape Speed 4.76cm/sec.1 7/8 in
Eq. at center PT.
Measuring Items Unite Norm Limit Sample1 Sample2
Tape Speed Error Hz 3000 +90/-60
WOW & Flutter % 0.25 0.35
Play Freq Response at Hz db
at 125 Hz db +/-3 +/-6
HEAD:KS-211 at 1 KHz db 0 0
at 10 KHz db +/-3 +/-6
at KHz db
P/B S/N DC Opetation db
1KHZ 0dB AC Optetaion db 45 40
Min Vol Hum & Noise AC Optetaion mv 1 3
Max Vol Hum & Noise AC Optetaion mv 30 50
THD10% Output Power RMS mw
Њ
1800
Max Output RMS mw
Њ
1800
THD at Hz %
at Hz %
at 1 KHz % 2 3
at KHz %
at KHz %
Track Crosstalk db 40 35
Channel Separation R - L db 30 25
L - R db 30 25
Channel Balance db 1 3
No Signal Current Min. Vol. Blank Tape mA
Max Output Max. Vol A
Play Torque g/cm 30-80
F.F Torque g/cm 45-125
Rew Torque g/cm 45-125
Time for Play Min
Time for F.F Sec <180
Time for Rew Sec <180
Play Level Tape 112 =0db Ref db 0 0
Radio Fm 1KHz IN AT 40KHz db +/-2 +/-4
CD Play 1 KHz -10db db +/-2 +/-4