GrundigYachtBoy50WR5405 维修电路图、原理图.pdf

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1、Service Document Exchange Set Es gelten die Vorschriften und Sicherheitshinweise gem dem Service Manual Sicherheit, Material- nummer 720108000001, sowie zustzlich die even- tuell abweichenden, landesspezifischen Vorschrif- ten! The regulations and safety instructions shall be valid as provided by th

2、e Safety Service Manual, part number 720108000001, as well as the respective national deviations. S S Service Manual Sicherheit Safety Materialnr./Part No. 720108000001 ? YACHT BOY 50 WR5405 Dieses Service Dokument ist nur in Datenform verfgbar This Service Document is only available as data nderung

3、en vorbehalten/Subject to alteration Made by GRUNDIG in Germany HS-41 0404 YACHT BOY 50? (2) ALIGNMENT FOR FM SENSITIVITY a. Required Instruments FM/AM RF Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to the ON position. (2) Connect a SSVM to the spe

4、aker. (TP2, TP3) (3) Connect the FM signal generator to the input terminal of the rod antenna (TP1, TP4) (4) Set the signal of the signal generator to the standard FM band, with frequency deviation to 22.5kHz modulation. (5) With the tuning gang fully closed, set the signal generator to 90 MHz and a

5、djust L15 (stretch or squeeze) for a maximum reading on the SSVM. (6) With the tuning gang fully open, set the signal generator to 106 MHz and adjust VC1 for a maximum reading on the SSVM. FM L15 VC1 (7) Repeat steps 5 and 6 until the best sensitivity is obtained at both frequencies. c. Instrument C

6、onnection L15 VC1 Signal Generator Test Point TP4 Test Point TP1 Test Point TP2 Test Point TP3 SSVM ALIGNMENT INSTRUCTIONS (1) ALIGNMENT FOR FM FREQUENCY RANGE a. Required Instruments FM RF signal generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to the ON posi

7、tion. (2) Connect a SSVM to the TP2 and TP3. (3) Connect the FM signal generator to the input terminal of the rod antenna (TP1, TP4) (4) Set the signal of the signal generator to the standard FM band, with frequency deviation to 22.5 kHz modulation. (5) With the tuning gang fully closed, set the sig

8、nal 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. FM L16 VC2 (7) Repeat Steps 5 and 6 until the best sensit

9、ivity is obtained at both frequencies. c. Instrument Connection VC2 L16 Signal Generator Test Point TP4 Test Point TP1 Test Point TP2 Test Point TP3 SSVM YACHT BOY 50? (3) ALIGNMENT FOR AM IF a. Required Instruments AM RF Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set

10、 the power switch to the ON position. (2) Connect a SSVM to the TP2, TP3. (3) Connect the AM signal generator to the loop antenna. AM CF1 (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 Co

11、nnection CF1 Test Point TP2 Test Point TP3 SSVM (4) ALIGNMENT FOR AM FREQUENCY RANGE a. Required Instruments AM RF Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to the ON position. (2) Connect a SSVM to the TP2, TP3. (3) Connect a AM RF signal genera

12、tor to the loop antenna. (4) Set the signal generator to 516.5 kHz with 30% modulation. Set the tuning gang fully closed, and adjust T2 for maximum reading on the SSVM. (5) Set the signal generator to 1630 kHz. Set the tuning gang fully open and adjust VC4 for a maximum reading on the SSVM. MW T2 VC

13、4 (6) Repeat Steps 4 and 5 until the best sensitivity is obtained at both frequencies. c. Instrument Connection T2 VC4 Test Point TP2 Test Point TP3 SSVM YACHT BOY 50? (5) ALIGNMENT FOR AM SENSITIVITY a. Required Instruments AM RF Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedur

14、e (1) Set the power switch to ON position. (2) Connect a SSVM to the TP2, TP3. (3) Connect the AM RF signal generator to the loop antenna. (4) Set the signal generator to 558 kHz, with 30% modulation. Set the tuning gang fully closed and adjust L17 for a maximum reading on the SSVM. (5) Set the sign

15、al generator to 1440 kHz. Set the tuning gang fully open and adjust VC3 for a maximum reading on the SSVM. MW L17 VC3 (6) Repeat steps 4 and 5 until the best sensitivity is obtained at both frequencies. c. Instrument Connection L17 VC3 Test Point TP2 Test Point TP3 SSVM (6) OSCILLATOR ALIGNMENT FOR

16、REMAINDER OF SW BANDS a. Required Instruments AM RF Signal Generator SSVM b. Alignment Procedure Mode Procedure (1) Set the power switch to ON position. (2) Connect a SSVM to the TP2, TP3. (3) Connect a signal generator with a 10pF dummy antenna. (TP1, TP4) (4) Set the signal generators frequency as

17、 noted below (use 1kHz, 30% modulation). 49m 16m (5) With the tuning gang fully closed, adjust the appropriate coils noted below for maximum reading on the SSVM. Mode Generator Frequency Adjustment 49m5.8 MHzT4 41m 7.0 MHzT3 31m 9.3 MHzT6 25m 11.43 MHzT5 21m 13.43 MHzT7 19m 15 MHzT9 16m 17.32 MHzT1

18、c. Instrument Connection T7 T5 T1 T6 T4 T3 T9 10 pF Test Point TP4 Test Point TP1 Signal Generator Test Point TP2 Test Point TP3 SSVM YACHT BOY 50? T4 L1 T1 Q1 TIME LIGHT AMSW2SW4SW6SW7 AM IC2 OSC Q4Buffer Switch Q6, Q7 HP WORLD KEY SW103 LCD Q106 Q107 OSC T2 SW1 ANT L2 OSC T3 SW3 ANT L6 OSC T7T5 SW

19、5 ANT L5,L9 OSCOSC T9 SW7 ANT L11,L7 CF4 AMP IF FM L16 IC3 HP JACK CF2 IF FM Det FM FM/AM Switch Batt JACK VR1 TC2 FMOSC power LED101 Q102 SW1 SW3SW5SW1 SW1 L14,3 POWER Q2, Q3 IC1 TA2111FN SW2 ANT Switch AMP FM OSC Q101 AMP IC101 TC9318FA X101 OSCOSCOSC T6 Q9 Buffer R5, R7 BAND Det SW2SW4SW6 ANTANTA

20、NT L4,10L8,12 SW1 D1 SWITCH Q5, Q6 SWITCH AMP BUZZ TDA2822 CF3 AM CF1 T8 FM ST/MO Switch L15 LIGHT Q103 AM OSC SW1 AM OSC TC1 DC JACK YACHT BOY 50? YACHT BOY 50? YACHT BOY 50? YACHT BOY 50? ( 1 ) Weak sensitivity on FM mode Check whether the sensitivity is recovered if antenna is directly Yes Check

21、the antenna terminal and connected to the point between antenna circuit. C17 and C35. No Yes Check IF waveform. Check CF3, CF2, CF5. No Check C31 and L15. ( 2 ) Weak sensitivity in AM band Yes Is the reception in MW/SW band O.K.? Check the antenna circuit and antenna terminal. No No Yes Check if ban

22、d selectors are normal. Check whether If is normal. No Yes Check SW1. Check whether the circuit of the buffer is normal. o Yes No Check C24 and Q1. Check whether the antenna circuit is normal. (L3, C21) Yes Check T8 and IC1. TROUBLESHOOTING FLOW CHARTTROUBLESHOOTING FLOW CHART ( 3 ) Power can not be

23、 turned on Yes Check Con1 and Jw101. Check whether the pin 31 of IC101 is 3V DC. No Yes Check DC Jack and connecter wire. Check Q5 and Q8. ( 4 ) Display can not be Normal Yes Check whether MW, SW are ok. Check whether FM is ok. No No Check Q9, Q102, con1, Q106, Q107. Check Q4, Q101, con1, Q106, Q107

24、. YACHT BOY 50? 1. IC1-TA2111N 2. IC2-TDA2822 IC CIRCUIT BLOCK DIAGRAMIC CIRCUIT BLOCK DIAGRAM 3. IC101-TC9318FA YACHT BOY 50? IC AND TRANSISTOR VOLTAGE CHART IC1-TA2111N IC2- TDA2822 PIN FM AM PIN FM AM 1 0.8 0 1 1.25 1.25 2 0 0 2 3 3 3 0.4 1 3 1.25 1.25 4 2.4 2.8 4 0 0 5 0 0 5 0.55 0.55 6 2.9 2.9

25、6 0 0 7 2.3 2.3 7 0 0 8 2.9 2.9 8 0.55 0.55 9 0 0 10 2.7 2.7 11 2.7 2.7 12 2.0 2.3 13 1.2 1.2 14 1.2 1.2 15 2.9 2.9 16 1.8 2.9 17 0.7 0.7 18 1.0 1.0 19 0.4 0.9 20 2.9 2.9 21 2.9 2.9 22 2.9 2.9 23 2.9 2.9 24 2.9 2.9 IC1-TC9318FA PIN FM MW PIN FM MW PIN FM MW 1 1.5 1.5 26 1.54 1.54 51 1.17 1.33 2 1.5

26、1.5 27 1.07 1.24 52 1.09 1.09 3 1.5 1.5 28 1.30 1.24 53 0 0 4 1.5 1.5 29 1.25 1.25 54 1.31 0 5 1.5 1.5 30 1.25 1.17 55 0 1.21 6 1.5 1.5 31 0 0 56 2.48 2.94 7 1.5 1.5 32 0 2.92 57 2.48 0.22 8 1.5 1.5 33 0 0 58 0.22 0.23 9 1.5 1.5 34 0 0 59 0.50 0.40 10 1.5 1.5 35 2.47 2.92 60 1.42 1.42 11 1.5 1.5 36

27、0 0 61 3 3 12 1.5 1.5 37 0 0 62 0 0 13 1.5 1.5 38 2.82 2.96 63 2.24 2.26 14 1.5 1.5 39 2.96 3.39 64 1.5 1.5 15 1.5 1.5 40 2.96 3.39 16 1.5 1.5 41 0.39 0 17 1.5 1.5 42 1.48 0.02 18 1.5 1.5 43 1.45 1.45 19 1.54 1.54 44 0.62 0.60 20 1.54 1.54 45 2.82 2.96 21 1.54 1.54 46 0 0 22 1.54 1.54 47 0 0 23 1.54

28、 1.54 48 0 0 24 1.54 1.54 49 2.82 2.96 25 1.54 1.54 50 1.33 1.49 Transistor FM AM FM AM G 0 0 C 1.9 1.9 Q1 D 1.6 1.6 Q101 B 0.7 0.7 S 0 0 E 0 0 C 0 0 C 1.3 1.3 Q2 B 2.4 2.4 Q102 B 0.6 0.6 E 3 3 E 0 0 C 2.4 2.4 C 1.5 1.5 Q3 B 0 0 Q103 B 0 0 E 0 0 E 0 0 C 2.4 2.4 C 0 0 Q4 B 1 1 Q104 B 0 0 E 0.3 0.3 E

29、0 0 C 3 3 C 0 0 Q5 B 2.3 2.3 Q105 B 0 0 E 3 3 E 0 0 C 1.8 2.9 C 2.9 2.9 Q6 B 2.3 2.3 Q106 B 2.3 2.3 E 2.8 2.9 E 3.0 3.0 C 2.2 0 C 0 0 Q7 B 0 0.6 Q107 B 0.6 0.6 E 0 0 E 0 0 C 0 0 Q8 B 0.6 0.6 E 0 0 C 2.2 2.2 Q9 B 1.2 1.2 E 0.6 0.6 YACHT BOY 50? BE DSG C MM4148 2SA1576 2SB815 1SS367 1N4148 2SC4081 2SC

30、2223 2SA1745 1SS314 2SK212D Diodes Transistors (E:Emitter C:Collector B:Base S:Source G:Gate D:Dra SEMICONDUCTOR LEAD IDENTIFICATIONSSEMICONDUCTOR LEAD IDENTIFICATIONS YACHT BOY 50? YACHT BOY 50? Ersatzteilliste Spare Parts List YACHT BOY 50 WR5405 AUDIO/HIFI MATERIAL-NR. / PART NO.: 759816000700 BE

31、STELL-NR. / ORDER NO.: GRO0350 CHROM/CHROME ? 11 / 2003 POS. NR. ABB.MATERIAL-NR.ANZ.BEZEICHNUNGDESCRIPTION POS. NO. FIG.PART NUMBERQTY. d NDERUNGEN VORBEHALTEN / SUBJECT TO ALTERATION ( ! ) ! Es gelten die Vorschriften und Sicherheitshinweise gem dem Service Manual Sicherheit, Mat.-Num- mer 7201080

32、00001, sowie zustzlich die eventuell ab- weichenden, landesspezifischen Vorschriften! The regulations and safety instructions shall be valid as provided by the Safety Service Manual, part number 720108000001, as well as the respective national deviations. 759816000700YACHT BOY 50 / WR 5405 CHROMYACHT BOY 50 / WR 5405 CHROME TAUSCHGERAETEXCHANGE SET 759545015200DECKEL BATTERIEBATTERY COVER 720114035500BEDIENUNGSANLEITUNGINSTRUCTION MANUAL D/GB/F/I/P/E/NL/PL/DK/S/FIND/GB/F/I/P/E/NL/PL/DK/S/FIN