Samyung STR-6000A Service Manual
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Samyung STR-6000A Service Manual

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SERVICE MANUAL
SERVICE MANUAL
SERVICE MANUAL
SERVICE MANUAL
MODEL
MODEL
MODEL
MODEL
STR- - - - 6000A
STR
6000A
STR
STR
6000A
6000A

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Summary of Contents for Samyung STR-6000A

  • Page 1 SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL SERVICE MANUAL STR- - - - 6000A 6000A 6000A 6000A MODEL MODEL MODEL MODEL...
  • Page 2 1. INITIAL SETTING 1. INITIAL SETTING 1. INITIAL SETTING 1. INITIAL SETTING 1 1 1 1 - - - - 1 1 1 1 POWER POWER POWER PART POWER PART PART TYPES PART TYPES TYPES TYPES OUTPUT VOLTAGE IS 13.6V. CURRENT SHOULD BE OVER 7A. POWER OUTPUT INPUT POWER...
  • Page 3 1 1 1 1 - - - - 2. GPS DATA 2. GPS DATA 2. GPS DATA INPUT 2. GPS DATA INPUT INPUT INPUT NMEA0183 TRANSMITTING SPEED IS 4800BPS. LATITUDE, LONGITUDE, TIME ARE USED. ALRAMS ARE CREATED, WHEN POSITION DATA ARE NOT RECEIVED, OR POSITION INFORMATION PASS OVER 4 HOURS IN CASE OF MANUAL INPUT.
  • Page 4 $GPGLL,3504.2892,N,12900.2503,E,024950.00,V*14 $GPGLL,3505.09,N,12902.45,E*PCL $GPZDA,025220.00,17,04,1999,00,00*6B $GPZDA,050048,13,09,1998,+00 GPS DATA CABLE (RCA) CENTER -> NMEA ( + ) OUTER -> NMEA ( - ) 1-3. SPEAKER SPEAKER MODEL SS-6000 8Ω 7W IS USED. SPEAKER JACK(3.5mm) ( + ) ( - )
  • Page 5 BODY SPEAKER OUTPUT CONNECTOR 1 1 1 1 - - - - 4. 4. 4. 4. MIKE MIKE MIKE MIKE...
  • Page 6 CONDENSOR MARK WAS USED. IF CABLES OF MIKE HANGERS ARE LINKED TO THE BODY GND TERMINAL, THIS IS AUTOMATICALLY RETURNED TO 16 CHANNELS. MIC CABLE FUNCTION MIC ( + ) MIC ( - ) KEYM MPTT N/C+...
  • Page 7 CN6 PTT CN3 MIC 1 1 1 1 - - - - 5. 5. 5. 5. PRINTER PRINTER PRINTER PRINTER 4800BPS ARE USED SERIALLY. PRINTER POWER IS SUPPLIED SEPARATELY. PRINTER CABLE STR-6000 15P PRINTER 9P 2. E-RXD DATA RX 2. DATA TX 3.
  • Page 8 POWER GPS IN SPEAKER TX / RX ANT DSC ANT 2. 2. 2. 2. MMSI MMSI MMSI INPUT PROCESS MMSI INPUT PROCESS INPUT PROCESS INPUT PROCESS KEY LONG, IF YOU PRESS MENU ITEM SELECT MENU ITEM SELECT MENU ITEM SELECT MENU ITEM SELECT SCREEN COMES OUT.
  • Page 9 2 2 2 2 - - - - 5. 5. 5. 5. ON RECEIVED USER MMSI RECEIVED USER MMSI , IF YOU STROE?, STROE?, MMSI ID MMSI ID IS INPUT. RECEIVED USER MMSI RECEIVED USER MMSI STROE?, STROE?, MMSI ID MMSI ID 3.
  • Page 10 4 4 4 4 - - - - 2. 2. 2. 2. ON GPS ALERT ON/OFF GPS ALERT ON/OFF, , , , USING KEY, ON..GPS ALERT ON/OFF GPS ALERT ON/OFF 5. ALL CLEAR METHOD 5. ALL CLEAR METHOD 5.
  • Page 11 7 7 7 7 - - - - 3. 3. 3. 3. IF UNUSE REMOTE UNUSE REMOTE UNUSE REMOTE IS IN MENU, VDR SETTING IS DONE. UNUSE REMOTE FINISH BY . (SET UP FROM 7-5.) 7 7 7 7 - - - - 4. 4. 4. 4. CHANGE USE REMOTE USE REMOTE IN MENU TO UNUSE REMOTE UNUSE REMOTE.
  • Page 12 8. 8. 8. 8. REMOTE SETTING REMOTE SETTING REMOTE SETTING REMOTE SETTING 8 8 8 8 - - - - 1. 1. 1. 1. IN POWER ON ON, , , , PRESS KEYS AT THE SAME TIME. 8-2. ON 'HIDDEN MENU SELECT' SCREEN, DO 'MODE CHANGE'. 8-3.
  • Page 13 9 9 9 9 - - - - 1. 1. 1. 1. IN POWER ON ON, , , , PRESS KEYS AT THE SAME TIME. NUMBER OF DIGITS ON LCD SCREEN IS CHANGED TO 3, FROM CHANNEL 16 -> 016. 9 9 9 9 - - - - 2.
  • Page 14 10- - - - 2 2 2 2 . V V V V - - - - 896 TRANSCEIVER 896 TRANSCEIVER 896 TRANSCEIVER 896 TRANSCEIVER...
  • Page 15 10- - - - 2 2 2 2 . V V V V - - - - 895 CUP 895 CUP 895 CUP 895 CUP...
  • Page 16 11. CIRCUIT EXPLANATION CIRCUIT EXPLANATION CIRCUIT EXPLANATION CIRCUIT EXPLANATION ANTENNA CHANGEOVER CIRCUIT ANTENNA CHANGEOVER CIRCUIT ANTENNA CHANGEOVER CIRCUIT ANTENNA CHANGEOVER CIRCUIT ANTENNA CHANGEOVER CIRCUIT'S FUNCTION IS A LOW-PASS FILTER IN RECEIVING, TUNING CIRCUIT IN TRANSMITTING. CIRCUIT PROTECTS TRANSMITTING SIGNALS FROM BEING INPUT TO RECEIVING CIRCUIT. RECEIVING SIGNAL IS INPUT TO MAIN UNIT THROUGH ANTENNA CONNECTOR &...
  • Page 17 THE 2ND MIDDLE FREQUENCY & DEMODULATOR CIRCUIT THE 2ND MIDDLE FREQUENCY & DEMODULATOR CIRCUIT THE 2ND MIDDLE FREQUENCY & DEMODULATOR CIRCUIT THE 2ND MIDDLE FREQUENCY & DEMODULATOR CIRCUIT THE 2ND MIXED CIRCUIT TRANSLATES THE 1-IF SIGNAL TO THE 2-IF SIGNAL. DOUBLE SUPER HETERODYNE METHOD (TRANSLATE RECEIVING SIGNAL TWICE) IMPROVES IMAGE REJECTION RATIO &...
  • Page 18 AMPLIFIES & FILTERS NOISE COMPONENT. FILTERED SIGNAL IS APPLIED TO NOISE DETECTER & "NREC" SIGNAL IS OUTPUT FROM PIN 14. "NREC" SIGNAL IS AMPLIFIED BY DC AMPLIFIER (U10/B) OF CPU BOARD & APPLIED AS "SQL0" BY CPU (U8, PIN 80). CPU ANALYZE NOISE STATUS AND OUTPUT "RMUTM", "RMUTS"...
  • Page 19 APC (AUTOMATIC POWER CONTROL) CIRCUIT (AUTOMATIC POWER CONTROL) CIRCUIT (AUTOMATIC POWER CONTROL) CIRCUIT (AUTOMATIC POWER CONTROL) CIRCUIT APC CIRCUIT STABILIZES Tx OUTPUT POWER. RF OUTPUT SIGNAL FROM POWER AMPLIFIER (U8) IS DETECTED TO OUTPUT DETECTING CIRCUIT (D13, D14). THEN, IT IS APPLIED TO ONE OF DIFFEENTIAL MOTION AMPLIFIER (Q22) INPUTS VIA High/Low CONTROL CIRCUIT (VR2, Q23).
  • Page 20 VCO (VOLTAGE CONTROL OSCILLATER) (VOLTAGE CONTROL OSCILLATER) (VOLTAGE CONTROL OSCILLATER) CIRCUIT (VOLTAGE CONTROL OSCILLATER) CIRCUIT CIRCUIT CIRCUIT OUTPUT FROM VCO (Q16) IS AMPLIFIED AT BUFFER AMPLIFIER (Q15). THEN IT IS SENT TO Tx/Rx SWITCHED (D8, D6). Rx LO SIGNAL IS APPLIED TO THE 1ST MIXER CIRCUIT (Q5) THROUGH LOW PASS FILTER, AND Tx SIGNAL IS APPLIED TO PRE-DRIVE AMPLIFIER (Q19).
  • Page 21 - CHECK THE SOLDERING OF OUTER SPEAKER CABLES. - CHANGE SPEKAER IC U6(LA4425) OF V-896. > BUTTON SOUND DEFECTS - CHANGE R51 OF V-891 - C1 OF V-896 IS SLIGHTLY BROKEN - RESOLDER U6 OF Y-896 TX, RX DEFECTS - WHEN TX IS ALWAYS AT LOW(LO) POWER, EVEN IF HIGH(HI) POWER IS SELECTED - CHECK ANTENNA &...
  • Page 22 LCD DEFECTS (BACK LIGHT DEFECTS & CONTRAST READJUSTMENT) - CHANGE DAMAGED C21,X1 OF V-895. - CHANGE LCD FCC CONNECTING DAMAGED CABLE - CHANGE LCD KEY ERROR - CHANGE FRONT SWITCH. WHEN THERE ARE NOISES IN ENGINE OPERATING > ENGINE'S ELECTRONIC NOISE CAN AFFECT RADIOTELEGRAPH - CHANGE THE ROUTE OF POWER CABLE FROM ENGINE - ADD NOISE FILTER TO POWER CABLE - USE PROTECTIVE IGNITION PLUG WIRING OR ALTERNATING CURRENT...
  • Page 23 Tx OUTPUT SET AS CH18(156.9MHz) 24W±1W V-896 OUTPUT POWER : HIGH PTT ON FREQUENCY SET AS CH18(156.9MHz) 156.9MHz± VARIATION OUTPUT POWER : LOW 200Hz PTT ON CHECK BY FREQUENCY COUNTER MAXIMUM MODULATION METER SETTING UNDER V-896 FREQUENCY RANGE=10 ±5KHz DEVIATION FILTER=25Hz~15KHz DE-EMPHASIS=OFF MEASURE...
  • Page 24 SENSITIVIITY MODULATION FREQUENCY =1KHz DEVIATION =±3KHz CHECK THE SIZE, AFTER CHANGING THE SIZE OF SSG FOR SINAD Meter VALUE TO BECOME 12dB. 13. FREQUENCY TABLE FREQUENCY TABLE FREQUENCY TABLE FREQUENCY TABLE USA Channel USA Channel USA Channel USA Channel SHIP TO SHIP TO COMMUNICATIONS TYPE NAME TAG...
  • Page 25 157.275 161.875 Public Correspondence, Marine Operator TELEPHONE 157.275 157.275 Public Correspondence, Marine Operator TELEPHONE 157.325 161.925 Public Correspondence, Marine Operator TELEPHONE 157.325 157.325 Public Correspondence, Marine Operator TELEPHONE 157.375 161.975 Public Correspondence, Marine Operator TELEPHONE 157.375 157.375 Public Correspondence, Marine Operator TELEPHONE 157.425 162.025...
  • Page 26 CANADA Channel CANADA Channel CANADA Channel CANADA Channel SHIP TO SHIP TO COMMUNICATIONS TYPE NAME TAG (MHz) (MHz) SHIP SHORE 156.050 160.650 Public Correspondence, Duplex TELEPHONE 156.100 160.700 Public Correspondence, Duplex TELEPHONE 156.150 160.750 Public Correspondence, Duplex TELEPHONE 156.200 156.200 Canadian Coast Guard, SAR CANADIAN CG 156.250...
  • Page 27 * BASIC OUTPUTS OF CH66, CH77 ARE 1W. BUT WE CAN CHANGE THEM TO 25W.
  • Page 28 Weather Channel Weather Channel Weather Channel Weather Channel WEATHER CH Rx(MHz) COMMUNICATIONS TYPE NAME TAG 162.550 NOAA WEATHER CHANNEL NOAA WX 162.400 NOAA WEATHER CHANNEL NOAA WX 162.475 NOAA WEATHER CHANNEL NOAA WX 162.425 NOAA WEATHER CHANNEL NOAA WX 162.450 NOAA WEATHER CHANNEL NOAA WX 162.500...
  • Page 29 BLOCKDIAGRAM BLOCKDIAGRAM BLOCKDIAGRAM BLOCKDIAGRAM...
  • Page 31 15. FRONT SIDE FRONT SIDE FRONT SIDE FRONT SIDE...
  • Page 32 16. WIRE DAGRAM 16. WIRE DAGRAM 16. WIRE DAGRAM 16. WIRE DAGRAM...
  • Page 34 17. V 17. V- - - - 896 RF 17. V 17. V 896 RF 896 RF 896 RF- - - - BORD TRANSCIVER BORD TRANSCIVER BORD TRANSCIVER BORD TRANSCIVER...
  • Page 35 18. V 18. V- - - - 894 WATCHKEEPER RECEIVER BORA 18. V 18. V 894 WATCHKEEPER RECEIVER BORA 894 WATCHKEEPER RECEIVER BORA 894 WATCHKEEPER RECEIVER BORA...
  • Page 36 19. V 19. V- - - - 895 CPU 19. V 19. V 895 CPU 895 CPU 895 CPU LOGIC BOARD LOGIC BOARD LOGIC BOARD LOGIC BOARD...
  • Page 38 20. V 20. V 20. V 20. V- - - - 892 BASIC MIC BOARD 892 BASIC MIC BOARD 892 BASIC MIC BOARD 892 BASIC MIC BOARD...
  • Page 40 20. SP 20. SP- - - - 580ADC POWER SUPPLY 20. SP 20. SP 580ADC POWER SUPPLY 580ADC POWER SUPPLY 580ADC POWER SUPPLY 20- - - - 1. 1. 1. 1. 50~60Hz INPUT IS POSSIBLE, BY SETTING AC INPUT 110/220V BY SWITCH. IF AC INPUT IS ISOLATED AS AC DC.
  • Page 41 20- - - - 3. SP 3. SP 3. SP 3. SP- - - - 580ADC 580ADC 580ADC 580ADC BACK SIDE BACK SIDE BACK SIDE BACK SIDE FUSE SHOULD BE 3A IN CASE OF AC, 10A IN CASE OF DC. ALSO IT SHOULD BE RATED FUSE.
  • Page 42 ① THIS CIRCUIT CONNECTS DC 24V, RECTIFYING ② DIODE(AFTER RECEIVING AC INPUT, PASSING TRANSFORMER) AND INPUT OF DC24V AUTOMATICALLY IN CASE OF AC/DC POWER ISOLATION ② THIS DIODE RECTIFIES THE 2ND VOLTAGE, OF WHICH AC INPUT PASSES TRANSFORMER. 20- - - - 5. SP 5.
  • Page 43 THIS IS SWTCHING POWER PART. VR2 V.ADJ IS A VOLUME, WHICH CONTROLS VOLTAGE. VR1 C.LIMIT IS A CURRENT LIMIT. THIS IS ADJUSTED TO 8A. 20- - - - 6. SP 6. SP 6. SP 6. SP- - - - 580ADC 580ADC 580ADC 580ADC HEAT PROTECTION PLATE...
  • Page 45 20- - - - 7. SP 7. SP 7. SP 7. SP- - - - 580ADC POWER SUPPLY 580ADC POWER SUPPLY 580ADC POWER SUPPLY 580ADC POWER SUPPLY DRAWING DRAWING DRAWING DRAWING...
  • Page 46 20- - - - 8. SP 8. SP 8. SP 8. SP- - - - 580ADC V 580ADC V 580ADC V 580ADC V- - - - 404 POWER SUPPLY 404 POWER SUPPLY 404 POWER SUPPLY 404 POWER SUPPLY DRAWING DRAWING DRAWING DRAWING...

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