Alpine 7980M - Page 19

7980M
Electrical Inspection Specifications
1. Measuring Conditions
(1) Power Supply : DCI440.2V
(2) Load Impedance : Pre Out 10kohm
(3) Power Output : CD: 1.6V
FM: 500mV
MW /LW: 200mvV
(4) Signal Generator Output : SG Indication
(5) Control Settings (Changer Unit)
Fader = Front Position
Balance — Center position
Treble — Center Position
Bass = Center Position
(6) Standard Modulations
(FM) Mono : 400Hz, 22.5kHz Deviation (MW /LW) 30% 400Hz
Stereo : 1kHz
Pilot : 8%
(7) Dummy Antenna
FM MW /LW
10 ohm 45 ohm 30 ohm 15pF
60
ohm
T
65pF
2. FM Inspection
Ses i a
inputs) | Mod. _
ON/OFF
Usable Sensitivity
98
Stop
Level|_
To
be
not
|
To
be
not
Stopped
|
To
be
ont
stomped
[SB
(oo eae
E To be Stopped
Lea Distortion
a Separation
spa os
5 Stereo 31~37
Blend
ec
S/N more than 30dB
[or [sre i 6
ee i es
sore |
poo
on
45 + 10dB
om less than 1%
ON:1kHz | more than 25dB
Rchonly | (IHF T-200)
ON: 1kHz
Rch only
0 to -9dB
rae
~25-