Grundig SC 620 LED Service Manual

Page 1

Service Document
Exchange SeI

Sono Clock 620 LED

ab Seriennummer 059398
from serial number 059398 on

Service A

Manual
Sicherhefl
Sufdy

Mun/Pm Na. A
720] 08000000

Es gehen die Vorschrihen und Sicherheihhiwweise
geméfldem Service Manual 'Sichedlei", Maleriul-
nummer720108000000,so~iemsévflid\ die wen-
mell ubweichenden, landmpezifischen Vomhrii-
len!

me regulalions and safeqy instrudions shall be
valid as pfwided by Ike 'Safiw" Service Manual,
pun numbe¢ 720108000000, us well as Ike
respective notional deviations.

Dims Service Dokumem in nur in Duvenfonn verfijgbcr
This Service Document is only available as data

Anderungen vorbehulhn/Subied lo ahemfion
Made by GRUNDK; in Germany - E-BS-SA 0502

http://wwwgrundignom

GRUI'IDIG

Page 2

Alignment Information
Model : GRUNDIG SC620
Ref. No. : SC620
Date : 21-JanA00

A) FM Radio section

1) FM lF
INPUT SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARK
TP3,2 10.7MHZ TP5,2 Quiet Point TI,2 Max. o/p symmetrical Vol. at min. position

2) RF VOLTAGE

BAND SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARK
FM - A TP4,2 875MHz L2 1.9 ~ 2.1V high end 7.5 ~8V
3) FM RF
INPUT SIGNAL OUTPUT SET RADIO ADJUST ADJUST FOR REMARK
TPI,2 90MI-lz Speaker 9OMHZ Ll Max. o/p Vol. at max. position
TP1,2 106MHz " " 106MHz TCl " " " "

4) 75KHZ CRYSTAL

OUTPUT ADJUST ADJUST FOR REMARK
TP6,7 TCZ 75K, IOHZ
5) 4.332MHZ CRYSTAL
OUTPUT ADJUST ADJUST FOR REMARK
TP8,9 TC3 4.332M, lOHZ
Note :
I. Use a digital meter to measure each required voltage on above items
2. Use weak signal in RF alignment
3. Radio & LCD board must be connected before alignment
4. Use the frequence counter to measure each required frequency on above items.
I
G RU I'I DIG Sonoclock 620 LED