Alpine 7279M - Page 12

| 7279M/L/E
(4) Control Settings
Power Switch -rrrrrrcctsr tress erect sees ecees ON Balance Control -++++++++s+eeeee- Mechanical Center
FM/AM Switch corres rset reste eters eter eec cee FM Treble/Bass Control ---+++-++-- Mechanical Center
Others ccc c cree sree sere ete eee c eee cece nee OFF Fader Control «ccc ce teeter cree reece Front Position
VR4 (7279E), VRS (7279M/L)
for minimum at L (R) channel
output.
Adjust VR2 for the waveform
changing from Low to High.
98.1MHz, 66dB zu Confirm to receiving signal.
: : T2 (7279E), T4 (7279M/L)
1 IF Adjustment Figure 13 98.1MHz for OV+0.03V between T.P3
and 4.
(Mono Signal, :
L
Signal
for
842dB
Separation.
Seek Stop ;
.1MH
Adjustment eS.iMbis
98.1MHz, 66dB u
(Mod. 400Hz,
G
(Mono
Signal,
2
VCO
Adjustment
Figure
16
98.1MHz
VR3
for
19+0.2kHz
curve
at
No
Modulation)
98.1MHz,
20dB
u
ce
|
eee
ae
Noise
Level
Dev.
22.5kHz)
put
(5) Adjustment Procedures
No Modulation)
98.1MHz, 66dB u
T.P.5.
Separation : 98.1MHz, 66dB », 1,000Hz
Adjustment AL): Signal, Modulgtion: |. 22°! Mh?
VR201-1, 2 (7279E)
ara eedee 98.1MHz | VR302-1, 2 (7279M//L)
FM Stereo Blend Figure 15 igna (VOLUME) for 2V at Lch. output.
Adjustment
98.1MHz, 46dB p 98.1MHz VR1 (7279E), VR4 (7279M/L)
Mono Signal,
No Modulation
Adjustment 98.1MHz, —10dB u = =
(Mod. 400Hz 98.1MHz VR1 for -25 to —35dB at Lch
Dev. 22.5kHz) output
*KSteop Geeess 7279M/L Model Only.
Figure 14
4.
TAPE
SECTION
AC
Voltmeter
(1)
Connection
Test
Tape
Unit
Under
Test
(2)
Location
of
Adjustment
parts
Figure
18
See Adjustment Locations
(3) Control Settings
Power Switch <scrcsctrrcr reer rrr tr cere reser ON Treble/Bass Control «+++++++++> Mechanical Center
Fader Control Periyar er arr ar rarer ae Front Position Others TREE Ee OR ee eC ee RR OFF
Balance Control -sr++sssteeeeeeee Mechanical Center
(4) Adjustment Procedures
Test Tape Test Point | Adjustment Point Adjustment
1
Head Azimuth | MTT-114NB ; Head Azimuth Adjust for maximum and same
: Figure 18 Adjustment Screw | level output at normal and
Adjustment (14kHz)
(Figure 19) reverse positions.
MTT-111
i 18
Tape Speed
Adjustment Volume} 3,030—3,080Hz
(Figure 20)
Tape Speed
Adjustment
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