grundig_yacht_boy_10_wr5401_service_man 电路原理图ual 电路原理图.pdf

Service Document Exchange Set Es gelten die Vorschriften und Sicherheitshinweise gemäß dem Service Manual “Sicherheit“, Material- nummer 720108000001, sowie zusätzlich die even- tuell abweichenden, landesspezifischen Vorschrif- ten! 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. S S Service Manual Sicherheit Safety Materialnr./Part No. 720108000001 YACHT BOY 10 WR5401 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 RadioFans.CNYACHT BOY 10 ALIGNMENT INSTRUCTIONS (1) ALIGNMENT FOR FM FREQUENCY RANGE a. Required Instruments FM RF si gnal generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to the ON position. (2) Connect a SSVM to the TP5 and TP6. (3) Connect the FM signal generator to the input terminal of the rod antenna (TP1, TP2) (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 signal generator to 87.35 MHz ±0.15 MHz and adjust L4 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 VC3 for a maximum reading on the SSVM. FM L4 VC3 (7) Repeat Steps 5 and 6 until the best sensitivity is obtained at both frequencies. c. Instrum ent Connection (2) ALIGNMENT FOR FM SENSITIVITY a. Required Instruments FM/AM RF S ignal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to the ON position. (2) Connect a SSVM to the speaker. (TP5, TP6) (3) Connect the FM signal generator to the input terminal of the rod antenna (TP1, TP2) (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 adjust L3 (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 VC2 for a maximum reading on the SSVM. FM L3 VC2 (7) Repeat steps 5 and 6 until the best sensitivity is obtained at both frequencies. c. Instrum ent Connection RadioFans.CNYACHT BOY 10 (3) ALIGNMENT FOR AM IF 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 TP5, TP6. (3) Connect the AM signal generator to the loop antenna. AM T1 (4) Set the signal generator to 460 kHz, with 30% modulation. Set the tuning gang fully closed, and adjust T1 for a maximum reading on the SSVM. c. Instrum ent Connection (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 TP5, TP6. (3) Connect a AM RF signal generator to the loop antenna. (4) Set the signal generator to 516.5 kHz with 30% modulation. Set the tuning gang fully closed, and adjust L21 for maximum reading on the SSVM. (5) Set the signal generator to 1631.5 kHz. Set the tuning gang fully open and adjust VC4 for a maximum reading on the SSVM. MW L21 VC4 (6) Repeat Steps 4 and 5 until the best sensitivity is obtained at both frequencies. c. Instrum ent Connection RadioFans.CNYACHT BOY 10 (5) 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 TP5, TP6. (3) Connect a AM RF signal generator to the loop antenna. (4) Set the signal generator to 138.5 kHz with 30% modulation. Set the tuning gang fully closed, and adjust L22 for maximum reading on the SSVM. (5) Set the signal generator to 293.5 kHz. Set the tuning gang fully open and adjust TC6 for a maximum reading on the SSVM. LW L22 TC6 (6) Repeat Steps 4 and 5 until the best sensitivity is obtained at both frequencies. c. Instrument Connection (6) ALIGNMENT FOR AM SENSITIVITY a. Required Instruments AM RF Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to ON position. (2) Connect a SSVM to the TP5, TP6. (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 L6 for a maximum reading on the SSVM. (5) Set the signal generator to 1440 kHz. Set the tuning gang fully open and adjust VC1 for a maximum reading on the SSVM. MW L6 VC1 (6) Repeat steps 4 and 5 until the best sensitivity is obtained at both frequencies. c. Instrum ent Connection RadioFans.CNYACHT BOY 10 (7) ALIGNMENT FOR AM SENSITIVITY a. Required Instruments AM RF Signal Generator SSVM b. Alignment Procedure Mode Adjustment Procedure (1) Set the power switch to ON position. (2) Connect a SSVM to the TP5, TP6. (3) Connect the AM RF signal generator to the loop antenna. (4) Set the signal generator to 153 kHz, with 30% modulation. Set the tuning gang fully closed and adjust L6 for a maximum reading on the SSVM. (5) Set the signal generator to 261 kHz. Set the tuning gang fully open and adjust TC5 for a maximum reading on the SSVM. LW L6 TC5 (6) Repeat steps 4 and 5 until the best sensitivity is obtained at both frequencies. c. Instrum ent Connection (8) OSCILLATOR ALIGNMENT FOR REMAINDER OF SW BANDS a. Required Instruments AM RF S ignal Generator SSVM b. Alignment Procedure Mode Procedure (1) Set the power switch to ON position. (2) Connect a SSVM to the TP5, TP6. (3) Connect a signal generator with a 10pF dummy antenna. (TP1, TP2) (4) Set the signal generators frequency as noted below (use 1kHz, 30% modulation). 75m 12m (5) With the tuning gang fully closed, adjust the appropriate coils noted below for maximum reading on the SSVM. Mode Generator Frequency Adjustment 75m 3.85 MHz L28 49m 5.80 MHz L28 41m 7.00 MHz L27 31m 9.30 MHz L27 25m 11.43 MHz L26 22m 13.43 MHz L26 19m 15.00 MHz L25 16m 17.32 MHz L24 13m 21.20 MHz L23 c. Instrument Connection RadioFans.CNYACHT BOY 10 RadioFans.CNYACHT BOY 10 1 4 7 6 13 15 23 6 7 2 24 8LW OSC L22 TC6SW2ST/MO SW7 OSCL25 20 BPF1 16 Q2 2SK212RF AMP AM IF T1,CF1FM IF CF3,CF4VR1VOLUME CONTROLJK2_SW SP/EARPHONESWITCHJK2 EARPHONEJACK MW OSC L21,TC4 FM ANT L3,TC1 SW8 OSCL24FM/SW ANTENNA SW9 OSCL23MW/LW BAR ANTSW3 POWER ON/OFFJK1 DC IN 3-6V SW1 BAND SW SW1,2 OSCL28 FM OSC L4,TC2 21 IC1 TA2111N SW1 BAND SW POWER AMP IC2 TDA2822 SW5,6 OSCL26 SW3,4 OSCL276V REG. Q6,Q7,Q8 RadioFans.CNYACHT BOY 10 RadioFans.CNYACHT BOY 10 ( 1 ) Weak sensitivity on FM mode Check whether the sensitivity is recovered if antenna is directly Yes Check the antenna terminal and connected to the point between antenna circuit. C32 and C72. N o Yes Check IF waveform. Check T1 and IC1. N o Check C6 and L3. ( 2 ) Weak sensitivity in AM band Yes Is the reception in MW/SW/LW band O.K.? Check the antenna circuit and antenna terminal. N o N o Y e s Check if band selectors are normal. Check whether IF is normal. Y es Check whether the antenna circuit is normal. Y es Check L7, Q2 and IC1. TROUBLESHOOTING FLOW CHART TROUBLESHOOTING FLOW CHART ( 3 ) Power can not be turned on Yes Check whether the pin 2 of IC2 is 3V DC. Check whether the pin c of Q6 is 3V DC. N o Y e s Check DC Jack and connecter wire. Check IC1 and IC2. RadioFans.CNYACHT BOY 10 1. IC1-TA2111N 2. IC2-TDA2822 IC CIRCUIT BLOCK DIAGRAM 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 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 2.3 2.3 13 1.2 1.2 14 1.2 1.2 15 2.9 2.9 16 2.9 2.9 17 0.7 0.7 18 1.0 1.0 19 0.9 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 Transistor FM AM FM AM C 2.1 2.9 C 2.7 2.7 Q1 B 2.9 2.3 Q5 B 0 0 E 2.9 2.9 E 0 0 G 0 0 C 2.9 2.9 Q2 D 1.6 1.6 Q6 B 2.2 2.2 S 0 0 E 3 3 C 1.5 1.5 C 0.6 0.6 Q3 B 2.1 2.1 Q7 B 0.3 0.3 E 2.7 2.7 E 0 0 C 0 0 C 0.1 0.1 Q4 B 2.9 2.9 Q8 B 0.6 0.6 E 2.9 2.9 E 0 0 C D S G BE 2SC4081R 1N4148 2SA1576A 2SA1162GR 2SK212D Diodes Transistors 1S5817 1SS314 (E:Emitter C:Collector B:Base S:Source G:Gate D:Drain) RadioFans.CNYACHT BOY 10 RadioFans.CNYACHT BOY 10 Ersatzteilliste Spare Parts List YACHT BOY 10 WR5401 AUDIO/HIFI MATERIAL-NR. / PART NO.: 755112205000 BESTELL-NR. / ORDER NO.: GRO0250 CHROM/CHROME 11 / 2003 POS. NR. ABB. MATERIAL-NR. ANZ. BEZEICHNUNG DESCRIPTION POS. NO. FIG. PART NUMBER QTY. d© 755112205000 YACHT BOY 10 WR5401 CHROM YACHT BOY 10 WR5401 CHROME TAUSCHGERAET EXCHANGE SET 759545015100 DECKEL BATTERIE BATTERY COVER 720114035000 BEDIENUNGSANLEITUNG INSTRUCTION MANUAL D/GB/F/I/P/E/NL/PL/DK/S/FIN D/GB/F/I/P/E/NL/PL/DK/S/FIN ÄNDERUNGEN VORBEHALTEN / SUBJECT TO ALTERATION ( ! ) ! Es gelten die Vorschriften und Sicherheitshinweise gemäß dem Service Manual “Sicherheit“, Mat.-Num- mer 720108000001, sowie zusätzlich 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. RadioFans.CN