Grundig Musik Boy 50L RP 5240 LW, Service Document, Page: 3 / 8

Musik Boy 50L RP 5240 LW
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A L I G N M E N T P R O C E D U R E
MODEL NO.: GRUNDIG RP5240LW
SIGNAL SOURCE (FM Signal Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO
SET RADIO DIAL
TO
ADJUST ADJUST FOR REMARKS
L 4
87.35 MHz (Lowest end) stretch or
(modulated) squeeze
TP 1 108.25 MHz Terminals VC1 B Volume
through matching network (modulated) across speaker (Highest end) (Osc. trimmer) Maximum control at
if necessary voice coil L 3 (RF coil) max. position
88 MHz 88 MHz stretch or
(modulated) squeeze
106 MHz VC1 C
(modulated) 106 MHz (RF trimmer)
Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessary
ALIGNMENT
SIGNAL SOURCE (AM Signal Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO
SET RADIO DIAL
TO
ADJUST ADJUST FOR REMARKS
515 KHz L 5
(modulated) (Lowest end) (Osc. coil)
1640 KHz VC1 A Volume
A standard radiation (modulated) Across speaker (Highest end) (Osc. trimmer) Maximum control at
loop ant. 558 KHz voice coil L 2 max. position
(modulated) 558 KHz (ant. coil)
1440 KHz VC1 D
(modulated) 1440 KHz (ant. trimmer)
Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessary
ALIGNMENT
SIGNAL SOURCE (LW Signal Gen.) CONNECT TO SET SIGNAL TO ALIGNMENT INDICATOR (Oscilloscope, VTVM) CONNECT TO
SET RADIO DIAL
TO
ADJUST ADJUST FOR REMARKS
142 KHZ
(modulated) (Lowest end) NA
292 KHz Terminals TC 3 Volume
A standard radiation (modulated) across speaker (Highest end) (Osc. trimmer) Maximum control at
loop ant. 153 KHz voice coil L 6 max. position
(modulated) 153 KHz (ant. coil)
261 KHz TC 4
(modulated) 261 KHz (ant. trimmer)
Repeat steps 3 and 4 as necessary to minimize tracking error and also steps 1 and 2 if necessary