Grundig-Yacht-Boy-10-WR-5401-Service-Manual电路原理图.pdf

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Grundig-Yacht-Boy-10-WR-5401-Service-Manual电路原理图.pdf

Service DocumentExchange SetEs gelten die Vorschriften und Sicherheitshinweisegemäß dem Service Manual “Sicherheit“, Material-nummer 720108000001, sowie zusätzlich die even-tuell abweichenden, landesspezifischen Vorschrif-ten!The regulations and safety instructions shall bevalid as provided by the “Safety“ Service Manual,part number 720108000001, as well as therespective national deviations.SSServiceManualSicherheitSafetyMaterialnr./Part No.720108000001IK501YACHT BOY 10 WR5401Dieses Service Dokument ist nur in Datenform verfügbarThis Service Document is only available as dataÄnderungen vorbehalten/Subject to alterationMade by GRUNDIG in Germany HS-41 0404http:/www.grundig.comYACHT BOY 10IK501ALIGNMENT 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 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. Instrument Connection (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 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. Instrument Connection YACHT BOY 10IK501(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. Instrument 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. Instrument Connection YACHT BOY 10IK501(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. Instrument Connection YACHT BOY 10IK501(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. Instrument Connection (8) OSCILLATOR ALIGNMENT FOR 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 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 YACHT BOY 10IK501YACHT BOY 10IK5011 4 7613152367224 8LW OSCL22 TC6SW2ST/MOSW7 OSCL2520BPF116Q2 2SK212RF AMPAM IFT1,CF1FM IFCF3,CF4VR1VOLUMECONTROLJK2_SWSP/EARPHONESWITCHJK2EARPHONEJACKMW OSCL21,TC4FM ANTL3,TC1SW8 OSCL24FM/SWANTENNASW9 OSCL23MW/LWBAR ANTSW3POWERON/OFFJK1DC IN 3-6VSW1 BAND SWSW1,2 OSCL28FM OSCL4,TC221IC1 TA2111NSW1 BAND SWPOWER AMPIC2 TDA2822SW5,6 OSCL26SW3,4 OSCL276V REG.Q6,Q7,Q8YACHT BOY 10IK501YACHT BOY 10IK501( 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. No Yes Check IF waveform. Check T1 and IC1. No 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. No No Y Check if band selectors are normal. Check whether IF is normal. Yes Check whether the antenna circuit is normal. Yes Check L7, Q2 and IC1. 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. No Yes Check DC Jack and connecter wire. Check IC1 and IC2. YACHT BOY 10IK5011. IC1-TA2111N 2. IC2-TDA2822 IC CIRCUIT BLOCK DIAGRAM IC AND TRANSISTOR VOLTAGE CHART IC1-TA2111N IC2- TDA2822 PIN FM AM PIN FM AM1 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 CD S GBE2SC4081R1N41482SA1576A2SA1162GR2SK212DDiodesTransistors1S5817 1SS314(E:Emitter C:Collector B:Base S:Source G:Gate D:Drain)

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