Grundig Sono Clock 620 LED Technical manual

ab Seriennummer 059398
from serial number 059398 on
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ten!
The regulations and safety instructions shall be
valid as provided by the "Safety" Service Manual,
part number 720108000000, as well as the
respective national deviations.
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Änderungen vorbehalten/Subject to alteration
Made by GRUNDIG in Germany • E-BS-SA 0502
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Service
Manual
Sicherheit
Safety
Materialnr./Part No.
720108000000
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Sono Clock 620 LED

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1
Alignment Information
Model : GRUNDIG SC620
Ref. No. : SC620
Date : 21-Jan-00
A) FM Radio se tion
1) FM IF
INPUT SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARK
TP3,2 10.7MHz TP5,2 Quiet Point T1,2 Max. o/p symmetri al Vol. at min. position
2) RF VOLTAGE
BAND SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARK
FM - - TP4,2 87.5MHz L2 1.9 ~ 2 .1V high end 7.5 ~8V
3) FM RF
INPUT SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARK
TP1,2 90MHz Speaker 90MHz L1 Max. o/p Vol. at max. position
TP1,2 106MHz " " 106MHz TC1 " " " "
4) 75KHZ CRYSTAL
OUTPUT ADJUST ADJUST FOR REMARK
TP6,7 TC2 75K_ 10HZ
5) 4.332MHZ CRYSTAL
OUTPUT ADJUST ADJUST FOR REMARK
TP8,9 TC3 4.332M_ 10HZ
Note :1. Use a digital meter to measure ea h required voltage on above items
2. Use weak signal in RF alignment
3. Radio & LCD board must be onne ted before alignment
4. Use the frequen e ounter to measure ea h required frequen y on above items.
SonoClock 620 LED

ǵSonoClock 620 LED

ǵSonoClock 620 LED

ǵ
SonoClock 620 LED

ǵ
SonoClock 620 LED

ǵ
SonoClock 620 LED

ǵ
SonoClock 620 LED

ǵ
SonoClock 620 LED

ǵ
SonoClock 620 LED