Alpine 7980M - Page 12

7980M
FM Signal Generator
FM Stereo Modulator
Changer Unit
Antenna
Receptacle
Frequency Counter
FM Dummy
Antenna
Tuner Unit ;
Figure 5
(3) Control Settings (Changer Unit)
Power Switch ............. 002 c cece eee eee eee ON
Fader Control ...................-..-.- Front Position
Balance Control ................-2205- Center Position
Treble/Bass Control .................. Center Position
Band Switch: conse cocetew dad tbedenetsaieatauddns FM
Otherss 352336 c2t ee ha tel eebee died fines OFF
Signal Generator Dial Control} Test Point Adjustment
98.1MHz,
Seek Stop . 15dB
Figure 3 98.1MH T.P.7
Adjustment 2 (Mod. 400Hz, :
Dev. 22.5kHz)
98.1MHz,
. 60dB Audio
(1)] Figure 4 98.1MH
? (Mod. 400Hz, z Output
3 Noise Level Dev. 22.5kHz)
Adjustment 98.1MHz,
- 19dB F
: Audio
(2)] Figure 4 98.1MH
g (Mod. 400Hz, BN eueoue
Dev. 22.5kHz)
98.1MHz,
“ce Figure 5 node 98.1MH T.P.8
i - Es
Adjustment = (Mod. 400Hz, :
Dev. 22.5kHz)
~18-
IF 98.1MHz,
1 ‘Adiocanen Figure 2 60dB Adjust T2101 to 0+ 30mv.
} (Mod. OFF)
Adjust VR2101 to obtain
15+5dB T.P.7 Output.
Adjust $419 (VOLUME) to obtain
500mV output. This value is OdB.
Adjust VR2102 to 34+3<B output
at SG level minimum.
Adjust VROO1 to read 19+ 0.05kHz
on Counter at T.P.8.