Grundig Yacht Boy 80 Service Manual
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Page 1
Service Document
Exchange SeI
YACHT BOY 8O WR5408 PLL
Service| A
Manua
Sicherheil
Sufdy
Mun/Pm No. A
720103000001
Es gelien die Vomhrilien and Sicherheiishinweise
genial; dem Service Manual 'Sidiedieil",Mmerial-
nummer720105000001, sowiezusfilzlididie even-
mell abweichenden, Inndesspezifischen Vomlirif-
len!
The regulalions and safely insfnmlions shall be
valid as pawlded by lhe "Safety" Service Manual,
pan number 720108000001, as well as the
respective naiional deviulions.
Disses Service Dokumem isl nur in Daienfonn verfiigbar
This Service Document is only available as dam
Anderungen vorbehulien/Subieci to alteration
Made by GRUNDIG in Germany I HS-Afl 0404
hnpz//www.gmndig.com
GRUI'IDIG
Page 2
ALIGNMENT INSTRUCTIONS
(1) ALIGNMENT FOR AM IF
a. Required Instruments
AM IF Sweep Generator with Scope
b. Alignment Procedure
(2) ALIGNMENT FOR FM IF
a. Required Instruments
FM IF Sweep Generator with Scope
b. Alignment Procedure
Mode Adjustment Procedure
Mode Adjustment Procedure
(1) Turn on the radio.
(2) Connect the input of the AM IF sweep generation in series with a resister of 1.2K
Ohm to the test point TP2 and TP7.
(3) Connect the RF output of the AM IF sweep generation in series with a resister of
2.2K ohm to another test point TP3.
(4) Adjust T2 to have a max. output and best center marker frequency to 450kHz.
c. Instrument Connection
n
u uuznu
u
n
450KHz Marker
Test Point Test Point
RF
TP2 IN ou-r TPS
1.2K 71: 7;: 2.2K
FM IF Sweep Generator
GRunDIG
(1) Turn on the radio.
(2) Connect the input of the FM IF sweep generation in series with a resister of1.2k
Ohm to the test point TP4 and TP7.
FM T1 (3) Connect the RF output of the FM IF sweep generation in series with a resister of
2.2K ohm to another test point TP5.
(4) Adjust T1 have a max. output and best symmetrical S curve with respect to the
Center marker frequency of 10.7MHZ.
c. lnstmment Connection
\J
Liu LL10 \
J:
10.7MHz Marker
l
Test Point RF Test Point
TP4 IN OUT TP5
1.2K -? (F-ZJK
zlr 7%
FM IF Sweep Generator
YACHT BOY 80