Service Document
Exchange Set
YACHT BOY 50 WR5405
Service |
Es gelten die Vorschriften und Sicherheitshinweise |
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S gemäß dem Service Manual "Sicherheit", Material- |
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Manual |
nummer 720108000001, sowie zusätzlich die even- |
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Sicherheit |
tuell abweichenden, landesspezifischen Vorschrif- |
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ten! |
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Safety |
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The regulations and safety instructions shall be |
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Materialnr./Part No. |
S valid as provided by the "Safety" Service Manual, |
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720108000001 |
part number 720108000001, as well as the |
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respective national deviations. |
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Dieses Service Dokument ist nur in Datenform verfügbar This Service Document is only available as data
Änderungen vorbehalten/Subject to alteration
Made by GRUNDIG in Germany • HS-41 0404 http://www.grundig.com
ALIGNMENT INSTRUCTIONS
(1)ALIGNMENT FOR FM FREQUENCY RANGE
a.Required Instruments FM RF signal generator SSVM
b.Alignment Procedure
Mode |
Adjustment |
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Procedure |
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(1) |
Set the power switch to the ON position. |
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(2) |
Connect a SSVM to the TP2 and TP3. |
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(3) |
Connect the FM signal generator to the input terminal of the rod antenna |
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(TP1, TP4) |
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L16 |
(4) |
Set the signal of the signal generator to the standard FM band, with frequency |
FM |
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deviation to 22.5 kHz modulation. |
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VC2 |
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(5)With the tuning gang fully closed, set the signal generator to 87.35 MHz ±0.15 MHz and adjust L16 (stretch or squeeze) for a maximum reading on the SSVM.
(6)With the tuning gang fully open, set the signal generator to 108.25 MHz ±0.25 MHz and adjust VC2E for a maximum reading on the SSVM.
(7) |
Repeat Steps 5 and 6 until the best sensitivity is obtained at both frequencies. |
c. Instrument Connection
VC2
L16
(2)ALIGNMENT FOR FM SENSITIVITY
a.Required Instruments FM/AM RF Signal Generator SSVM
b.Alignment Procedure
Mode |
Adjustment |
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(1) |
Set the power switch to the ON position. |
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(2) |
Connect a SSVM to the speaker. (TP2, TP3) |
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(3) |
Connect the FM signal generator to the input terminal of the rod antenna (TP1, |
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TP4) |
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L15 |
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(4) |
Set the signal of the signal generator to the standard FM band, with frequency |
FM |
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deviation to 22.5kHz modulation. |
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VC1 |
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(5) |
With the tuning gang fully closed, set the signal generator to 90 MHz and |
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adjust L15 (stretch or squeeze) for a maximum reading on the SSVM. |
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(6) |
With the tuning gang fully open, set the signal generator to 106 MHz and |
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adjust VC1 for a maximum reading on the SSVM. |
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(7) |
Repeat steps 5 and 6 until the best sensitivity is obtained at both frequencies. |
c. Instrument Connection |
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VC1
L15
Signal Generator
Test Point TP1
Test Point TP4
SSVM
Test Point TP2
Test Point TP3
Signal Generator
Test Point TP1
Test Point TP4
SSVM
Test Point TP2
Test Point TP3
YACHT BOY 50
(3)ALIGNMENT FOR AM IF
a.Required Instruments AM RF Signal Generator SSVM
b.Alignment Procedure
Mode |
Adjustment |
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Procedure |
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(1) |
Set the power switch to the ON position. |
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(2) |
Connect a SSVM to the TP2, TP3. |
AM |
CF |
1 |
(3) |
Connect the AM signal generator to the loop antenna. |
(4)Set the signal generator to 460 kHz, with 30% modulation. Set the tuning gang fully closed, and adjust CF1 for a maximum reading on the SSVM.
c.Instrument Connection
CF1
(4)ALIGNMENT FOR AM FREQUENCY RANGE
a.Required Instruments AM RF Signal Generator SSVM
b.Alignment Procedure
Mode |
Adjustment |
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Procedure |
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(1) |
Set the power switch to the ON position. |
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(2) |
Connect a SSVM to the TP2, TP3. |
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(3) |
Connect a AM RF signal generator to the loop antenna. |
MW |
T2 |
(4) |
Set the signal generator to 516.5 kHz with 30% modulation. Set the tuning |
VC4 |
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gang fully closed, and adjust T2 for maximum reading on the SSVM. |
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(5)Set the signal generator to 1630 kHz. Set the tuning gang fully open and adjust VC4 for a maximum reading on the SSVM.
(6) |
Repeat Steps 4 and 5 until the best sensitivity is obtained at both frequencies. |
c. Instrument Connection
T2
VC4
SSVM
Test Point TP2
SSVM
Test Point TP3
Test Point TP2
Test Point TP3
YACHT BOY 50
(5)ALIGNMENT FOR AM SENSITIVITY
a.Required Instruments AM RF Signal Generator SSVM
b.Alignment Procedure
Mode |
Adjustment |
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Procedure |
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(1) |
Set the power switch to ON position. |
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(2) |
Connect a SSVM to the TP2, TP3. |
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(3) |
Connect the AM RF signal generator to the loop antenna. |
MW |
L17 |
(4) |
Set the signal generator to 558 kHz, with 30% modulation. Set the tuning gang |
VC3 |
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fully closed and adjust L17 for a maximum reading on the SSVM. |
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(5)Set the signal generator to 1440 kHz. Set the tuning gang fully open and adjust VC3 for a maximum reading on the SSVM.
(6)Repeat steps 4 and 5 until the best sensitivity is obtained at both frequencies.
c.Instrument Connection
L17
VC3
SSVM
Test Point TP2
Test Point TP3
(6)OSCILLATOR ALIGNMENT FOR REMAINDER OF SW BANDS
a.Required Instruments AM RF Signal Generator SSVM
b.Alignment Procedure
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ocedure |
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(1) |
Set the power switch to ON position. |
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49m |
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(2) |
Connect a SSVM to the TP2, TP3. |
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(3) |
Connect a signal generator with a 10pF dummy antenna. (TP1, TP4) |
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(4) |
Set the signal generator’s frequency as noted below (use 1kHz, 30% modulation). |
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(5) |
With the tuning gang fully closed, adjust the appropriate coils noted below for maximum |
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reading on the SSVM. |
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Mode |
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Generator Frequency |
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Adjustment |
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49m |
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5.8 |
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T4 |
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7.0 |
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T3 |
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9.3 |
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T6 |
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25m |
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11.43 MHz |
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T5 |
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13.43 MHz |
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T7 |
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19m |
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15 |
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T9 |
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16m |
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17.32 MHz |
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T1 |
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c. Instrument Connection |
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T1 |
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T3 |
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T5 |
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T4 |
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T7 |
T6 |
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T9 |
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Signal Generator
Test Point TP1
10 pF Test Point TP4
SSVM
Test Point TP2
Test Point TP3
YACHT BOY 50
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FM |
OSC |
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L14,3 |
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CF4 |
Buffer Q4 |
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D1 |
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SW1 |
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SWITCH |
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Q1 |
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FM |
FM |
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FM/AM |
ST/MO |
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AM |
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ANT |
OSC |
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Switch |
Switch |
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AMP |
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L15 |
L16 |
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Q6, Q7 |
SW2 |
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TC1 |
TC2 |
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L2 |
L1 |
L6 |
L4,10 |
L5,L9 |
L8,12 |
L11,L7 |
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LCD |
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SW1 |
SW2 |
SW3 |
SW4 |
SW5 |
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SW6 |
SW7 |
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ANT |
ANT |
ANT |
ANT |
ANT |
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ANT |
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ANT |
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IC1 TA2111FN |
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VR1 |
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BAND Det |
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R5, R7 |
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AM |
FM |
FM |
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IF |
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X101 |
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IF |
Det |
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T8 |
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CF2 |
CF3 |
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CF1 |
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SW1 |
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KEY |
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IC101 |
FM OSC |
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AMP |
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IC2 |
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HP |
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HP |
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TC9318FA |
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Q101 |
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JACK |
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TDA2822 |
JACK |
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Switch |
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AM OSC |
AM |
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AMP |
OSC |
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SW1 |
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Buffer |
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Q102 |
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Q9 |
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BUZZ |
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WORLD |
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AMP |
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TIME |
SW103 |
LED101 |
Q106 |
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Q2, Q3 |
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T2 |
T4 |
T3 |
T6 |
T5 |
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T7 |
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T9 |
T1 |
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Q107 |
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Q103 |
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LIGHT |
power |
AM |
SW1 |
SW2 |
SW3 |
SW4 |
SW5 |
SW6 |
SW7 |
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LIGHT |
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Switch |
OSC |
OSC |
OSC |
OSC |
OSC |
OSC |
OSC |
OSC |
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POWER |
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SWITCH |
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DC JACK |
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Q5, Q6 |
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SW1 |
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Batt |
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IC3 |
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YACHT BOY 50 |
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