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Blaupunkt MB Sound 2024 Serviceanleitung Seite 11

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> AM - Abgleich
MW - Oszillator
MW - Vorkreis
Kiinstliche Antenne (8 627 105 356) verwenden.
f = 558 kHz, f_j= 1 kHz
mod = 30 %,
chen.
LW - Oszillator
Betriobsart .....0...:0-sscccessscecenecees AM
MePBPUNKT .......ccseeceeeesereeeeseeenens MPUAM (DV 600 / 5)
Abgieichelement ........---eere L 651
SpeZifikation .........:ee
eee reeeeees auf 1,60 V abgleichen
MeBinstruMent .........:
eee
Voltmeter
LW - Vorkreis
Kinstliche Antenne (8 627 105 356) verwenden.
BetrieDSart ..........ccssscseccrsesseneees AM
MePPUNKt ...........:ccrcceesterteeneeees Lautsprecherausgang
Abgleichelement ..........-ccee L 636
SpeZifikation ........:ceeeeeeeeereeees aut NF-Maximum abgleichen
MeBinstrument ............ errr
NF-Millivoltmeter / Oszilloskop
Signalquelle ........ccceseeeeteeeteeetes MeBsender
f = 153 kHz, f, j= 1 KHZ
mod = 30 %
11
AM alignment
MW oscillator
Operating MOde ...........cc eects AM
Measuring point ...........cseseeeen MPUAM (DV 600 / 5)
Alignment element ..............06 L 650
SPOCHICAUION: aacievicsestwdvasierniiese align to 1.34 + 0.1 volts
Measuring instrument .............. voltmeter
1.
Adjust the unit to 531 kHz (station button MW1).
2.
Align to 1.34 + 0.1 volts with L 650 at the measuring point
MPUAM.
MW input circuit
Use the dummy antenna (8 627 105 356).
Operating MOE ...........seceereees AM
Measuring point «00...
loudspeaker output
Alignment element ...........:ce L635
SHSCHCAIION acess sivsicssnnss seas align to AF maximum
Measuring instrument ............. AF millivoltmeter / oscilloscope
Signal SOUICG 5. haccdecmeaen ees signal generator
f = 558 kHz, f,.., = 1 kHz
mod = 30 %
1.
Align the unit to 558 kHz (station button MW2). Hook up the
millivoltmeter / oscilloscope to the loudspeaker output (R or L)
and set the volume to medium range with the volume control
knob.
2.
Feed the signal from the signal generator into the antenna
input. Adjust the level so that the 1 kHz signal is barely audible
above the noise in the loudspeaker.
3.
Adjust the audio frequency to maximum with L 635 at the
loudspeaker output.
LW oscillator
Operating Mode ........... cee
AM
Measuring POInt ........... ccna
MPUAM (DV 600 / 5)
Alignment element .............+ L651
SHECHICALON |...).casccasevssasscrieenss align to 1.60 volts
Measuring instrument .............. voltmeter
1.
Adjust the unit to 155 kHz (station button LW1).
2.
Align to 1.60 volts with L 651 at the measuring point MPUAM.
LW input circuit
Use the dummy antenna (8 627 105 356).
Operating Mode ......... cee
AM
Measuring point ..........cceee loudspeaker output
Alignment elements ..............6 L 636
SDSCUICATION es avciverssccvsdiasdensens align to AF maximum
Measuring instrument .............. AF millivoltmeter / oscilloscope
Signal SOUICE ..........:cesceseseeees signal generator
f= 153 kHz, fo, = 1 kHz
mod = 30 %
1. Align the unit to 153 kHz (station button LW2). Hook up the AF
millivoltmeter / oscilloscope to the loudspeaker output (R or L)
and set the volume to medium range with the volume control
knob.
2.
Feed the signal from the signal generator into the antenna
input. Adjust the level so that the 1 kHz signal is barely audible
above the noise in the loudspeaker.
3.
Adjust the audio frequency to maximum with L 636 at the
loudspeaker output.
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Sey,
Ol a e

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