Alpine 7980M - Page 14

7980M
(2) Control Settings
Power Switch ..................22..4-. ON Treble/Bass Control ....... Center Position
Band Select Switch ................... SDK Rader Control o.. 2. ee hares ees Front
Balance Control ........... Center Position Others \isysmic vert cteoeteasdal eles oe OFF
(3) Adjustment Procedures
Step Signal Generator Dial Control Adjustment
98.1MHz, 60dB
SK : (SK, BK, DK: ON)
] ; Figure 7 98.1MHz T.P.10
Adjustment (Mod, 1kHz Dev.
22.5kHz)
98.1MHz, 60dB
DK :
2 : Figure 7 98.1MHz T.P.11
Adjustment
(1) Preparation of Before Adjustment
@ Remove the Base Chassis of Changer Unit.
(SK, BK, DK: ON)
(Mod, 1kHz Dev.
3 Compact Disc SECTION
@ Use the wire to connect each Test Point on CD-LSI P.C.Board.
Note. After adjustment, securely remove the solder used to connect the wire.
L002 for Maximum
Output.
VROO4 for Maximum
Output.
22.5kHz)
(2) Connections
Tuner Unit
Jitter Meter
Test CD
Changer Unit
Figure 8
Tuner Unit
Oscilloscope (DC MODE)
Test CD
Changer Unit
Figure 9
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