Daewoo AKD-0275 Series Service Manual Download Page 36 | Manualshive

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IC BLOCK DIAGRAM

10-2. BU1924F / SAA6579T (IC RDS DEMODULATOR)

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Summary of Contents for AKD-0275 Series

Page 1: ...ICS CO LTD http svc dwe co kr Jan 2000 4 Channel High Power 35W x 4Ch Electronic Tuning Electronic Volume Bass Treble Balance Fader Controls Auto Memory Preset Scan Repeat Random Intro Scan Local DX Switch Loudness Mute Controls Flip Down Detachable Face for Anti Theft ISO DIN Chassis for Easy Installation ...

Page 2: ...EMATIC DIAGRAM 9 5 PARTS LOCATION ON P C BOARD 12 6 OVERALL EXPLODED VIEW PARTS LIST 19 7 DECK MECHANISM EXPLODED VIEW PARTS LIST 21 8 PARTS LIST 25 9 FUNCTION OF MICOM IC 28 10 IC BLOCK DIAGRAM 33 11 LIQUID CRYSTAL DISPLAY 38 12 OUTPUT CONNECTION DESCRIPTIONS 40 13 HOW TO INSTALL 41 ...

Page 3: ...Hz 3dB 10kHz 5 3dB TUNER SECTION FM Tuning range 87 5 to 108MHz 87 5 to 107 9 at U S A Usable Sensitivity MONO 10dBu 4uV 75ohms Stereo Separation 30dB Channel Step 200KHz Signal to noise ratio at 60dBu More than 50dB MW Tuning range 522 to 1620kHz at Europe 530 to 1710kHz at U S A Usable Sensitivity 28dBu LW Tuning range 144 to 288kHz Usable Sensitivity 40dBu CD SECTION DISC Compact disc 12cm stan...

Page 4: ...2 LINE DRAWING WITHOUT RDS FUNCTION BASIC WITH RDS FUNCTION RDS 2 1 AKD 0275 FRONT SIDE 2 ...

Page 5: ...LINE DRAWING 2 2 AKD 0285 FRONT SIDE 3 WITHOUT RDS FUNCTION BASIC WITH RDS FUNCTION RDS ...

Page 6: ...LINE DRAWING 4 2 3 AKD 0275 AKD 0285 REAR SIDE ...

Page 7: ...3 ADJUSTMENTS 5 3 1 CONNECTIONS EQUIPMENTS ...

Page 8: ...ADJUSTMENTS 3 2 ADJUSTMENT LOCATIONS IN TUNER MODULES 6 ...

Page 9: ...ig 8 Adjust AM RF1 and AM RF2 for maximum output Fig 8 Adjust LW OSC for 1 2 1 35V VT Fig 8 Adjust LW RF1 and LW RF2 for maximum output Fig 8 RF Tracking LW Band Covering LW Tracking 2 3 4 5 DESCRIPTION CONNECTION ANTENNA SIGNAL DIAL CONTROL ADJUSTMENT 1 Dummy Antenna Circuit 2 Location of Adjustment Points Refer to Adjustment Location Page 3 Control Setting Power Switch ON Balance Fader Control M...

Page 10: ...V 0 03V Fig 8 Adjust RV 101 Tuner PC Board for2 7V 20mV at TP102 IC401 pin 66 Adjust MPX SEP Fig 8 for maximum separation Left and Right ch Adjust Stereo Blend Fig 8 1dB separation between Left and Right ch Stereo Separation SNC 4 5 6 DESCRIPTION CONNECTION ANTENNA SIGNAL DIAL CONTROL ADJUSTMENT 1 Dummy Antenna Circuit 2 Location of Adjustment Points Refer to Adjustment Location Page 3 Control Set...

Page 11: ...4 SCHEMATIC DIAGRAM 4 1 BASIC Series AKD 0275 0285 9 Size A3 ...

Page 12: ...SCHEMATIC DIAGRAM 10 4 2 RDS Series AKD 0275 0285 Size A3 ...

Page 13: ...SCHEMATIC DIAGRAM 11 4 3 CDP Circuit for AKD 0275 0285 DCM 200 201 Size A3 ...

Page 14: ...5 PARTS LOCATION ON P C BOARD 5 1 PCB MAIN AKD 0275 0285 PARTS SIDE 12 ...

Page 15: ...PARTS LOCATION ON P C BOARD 13 BOTTOM SIDE ...

Page 16: ...PARTS SIDE BOTTOM SIDE PARTS LOCATION ON P C BOARD AKD 0275 BASIC 14 5 2 PCB FRONT ...

Page 17: ...PARTS SIDE BOTTOM SIDE PARTS LOCATION ON P C BOARD AKD 0275 RDS 15 ...

Page 18: ...PARTS LOCATION ON P C BOARD 16 AKD 0285 BASIC PARTS SIDE BOTTOM SIDE ...

Page 19: ...PARTS LOCATION ON P C BOARD 17 AKD 0285 RDS PARTS SIDE BOTTOM SIDE ...

Page 20: ...PARTS LOCATION ON P C BOARD 18 5 3 PCB Sub PARTS SIDE BOTTOM SIDE ...

Page 21: ...6 OVERALL EXPLODED VIEW PARTS LIST 19 6 1 AKD 0275 BASIC RDS Size A3 ...

Page 22: ...OVERALL EXPLODED VIEW PARTS LIST 20 6 2 AKD 0285 BASIC RDS Size A3 ...

Page 23: ...7 DECK MECHANISM EXPLODED VIEW PARTS LIST 21 Size A3 ...

Page 24: ...SY CHASSIS CLAMP ASSY ROLLER CLAMP WASHER CUT D4xD1 6xT0 25 PLATE CLAMP DRIVE UNIT TOTAL ASSY DRIVE UNIT ASSY PICK UP ASSY DOP 200 GUIDE SLED SCREW 97LA202300 97LA202400 97L3101500 97LA202500 97L3003900 97LA202600 97LA302500 97L8100500 97L2702600 97L8800202 97L3101700 97LA302700 97L2702100 97L2702200 97L2702500 97L2703400 97L3101400 97L2601500 97L7102100 97L3003500 97L3101700 97LA202900 97L0602400...

Page 25: ...LER ASSY SHAFT ROLLER GEAR ROLLER BEARING ROLLER ROLLER RUBBER WASHER CUT D4xD2xT0 25 97L5200300 97L2702700 97L5200100 97L3102100 97L2301100 97L2702800 97L8100600 97L2703300 7051200511 7001200311 97L0902200 7121200411 97L8100700 97L2501500 97L3102200 97L65015BA 5S50101113 7121200411 97L2600900 7402002011 97L3004300 97LA203200 97LA303100 97L65015DA DSI2321 97L8800201 97L8800203 97P6271000 5S5010111...

Page 26: ...NSION F SPRING SUSPENSION R CHASSIS TOP TOTAL ASSY SCREW TAPTITE PAN M2x3 5 SCREW TAPTITE SPL M2x3 5 PCB TOTAL ASSY SCREW TAPTITE SPL M2x3 5 97L2702900 97L2703000 97L3101600 97L3101400 97L3701100 97L2401400 97L3101300 97L0601700 97LA202600 97L2702400 97L3101800 97LA203200 97L3101300 97LA202000 97L3101500 97LA202100 97L2300900 97L2600900 97L3101800 97LA202200 97L3101800 97LA202700 97LA202800 97L310...

Page 27: ...PTION 190 330 T1 6 2 00 8283 1311 000 ELCO FFC FPC 6200 18P SKWB 20 S P T T LT4H11G 41 RED RL203 LC72366 9524 RDS LC72366 9523 RDS INTE LC72362 9581 BASIC BU1924 SOP RDS SAA6579T RDS INTE PMS 24LC16B I SN RDS LC75371M MFP36S TDA8567Q K1A 7809P T0 220AB J 020 03 37 1 5 2 300UH P EI 19MM 166 5 60 6 18P AKD 0277R 14V 40MA D3 0 0 13 MLD GN 14V 40MA D3 0 0 13 MLD OR KTD 2058 Y KTB 1366 Y H500K 5X5 6N P...

Page 28: ...H11G41 97T0L1330P 97T0L1550P 97T82L0WE4 5S52643CL1 5S50101Z02 D1MN10 B DDA204K B 1LC75854E 1LC75853N PCB FRONT PCB FRONT PCB FRONT PCB FRONT CONNECTOR WAFER LED LCD LCD LAMP PILOT SW TACT SW TACT DIODE CHIP DIODE CHIP IC CHIP DRIVER IC CHIP DRIVER DESCRIPTION AKD 0275 RDS AKD 0285 RDS AKD 0275 BASIC AKD 0285 BASIC SK DETACHABLE 12P LT4H11G 41 RED EDH2358 TTD3043UPTDPN RDS IS06216P BASIC 14V 40MA D...

Page 29: ...O16P ADAPTER J8P20 I P 280 J4P S ISO8P 300 5PSTRIP TUBE SK20P ISO16P ADAPTER SK20P ISO16P ADAPTER ISO 16P W PHONE ILL SK20P EXT ACCESSORY 0275A RDS INTERCONTI RDS PMS RDS HAEGEN RDS DEITA BASIC CONN ACCESSORY LOCATION CODE NAME 97T65918SB 97T6218800 97T6220400 5S50101Z02 5S50101A08 PCB SUB CONNECTOR CONNECTOR SW TACT SW TACT DESCRIPTION AKD 0275R SK 1 8 12P DETACHABLE E28 5084 013 000 808 1C 1P SK...

Page 30: ...9 FUNCTION OF MICOM IC 9 1 PIN CONFIGURATION 28 ...

Page 31: ...CILLATION INPUT RANGE INPUT TERMINAL IF AM VCO LOCAL OSCILLATION INPUT RANGE OUTPUT OF PLL LOCK UP SUB FOR SPEEDY PLL LOCK REFER TO ATTACHED PAGE ABOUT CIRCUIT USED INPUT TERMINAL OF FM IF COUNT INPUT RANGE 107MHz 30kHz Vpp INPUT TERMINAL OF AM IF COUNT INPUT RANGE 450kHz 1kHz AM 450kHz 0 37kHz LW Vpp PART THAT CHECKS DAMAGE OF BACK UP MEMORY AFTER COMING BACK TO BACK UP MODE REFER TO ATTACHED PAG...

Page 32: ...E IS CHOSEN OUTPUT IS HIGH STEREO INPUT TERMINAL STARTING IS HIGH WHEN INPUT IS LOW ON AIR STEREO IS DISPLAYED SIGNAL DETECTION PORT STARTING INPUT IS HIGH INPUT IS CHANGED INTO LOW WHEN RECEIVING THE RADIO FREQUENCY MUTING WHEN CHECKING AF IN RADIO MODE LOW IN ACTIVE HIGH AND OTHERS MODES INPUT TERMINAL OF USING TELEPHONE SIGNAL STARTING IS HIGH MUTING IF ACTIVE BECOMES LOCAL MODE HIGH DX MODE LO...

Page 33: ...UTPUT PORT CDC MODE ON OUTPUT PORT OUTPUT IS HIGH IN CDC MODE OUTPUT IS LOW IN OTHERS CONDITION REFER TO ATTACHED PAGE ABOUT CDC COMMUNICATION SPECIFICATION CDP MODE ON OUTPUT PORT OUTPUT IS HIGH IN CDP MODE OUTPUT IS LOW IN OTHERS CONDITION REFER TO ATTACHED PAGE ABOUT CDC COMMUNICATION SPECIFICATION CDP EJECT CONTROL SIGNAL OUTPUT IS HIGH AT STARTING OUTPUT IS LOW WHEN CDP EJECT KEY IS IN SIGNAL...

Page 34: ... PA3 PA2 PA1 PA0 PB3 PB2 PB1 PB0 P EJTKEY PP2 PP1 PL1 DESCRIPTION OPTION DIODE MATRIX INPUT OPTION DIODE MATRIX OUTPUT CDP DISC EJECT KEY INPUT PORT DISC IN NO DISC CDC_SEL L H CDP_SEL H L CDP DISC IN CHECK INPUT SENSOR2 DISC IN HIGH NO DISC LOW I O I I I I O O O O I O O I ...

Page 35: ...10 IC BLOCK DIAGRAM 10 1 LC75854E IC LCD DRIVER 33 ...

Page 36: ...IC BLOCK DIAGRAM 10 2 BU1924F SAA6579T IC RDS DEMODULATOR 34 ...

Page 37: ...IC BLOCK DIAGRAM 10 3 TDA8567Q IC AUDIO POWER 35 ...

Page 38: ...IC BLOCK DIAGRAM 10 4 LC75371M IC EVR 36 ...

Page 39: ...IC BLOCK DIAGRAM 10 5 24LC16B IC EEPROM 37 ...

Page 40: ...TRACK MUTE 7D PM COM2 I1 MW 1A 2E 2G 2B 3E 3G 3B P2 4F 4H 4C 5E 5G 5C 6E 6G 6C 7E 7G 7C II2 COM1 FM LOC LOUD 2F 2A RDM 3F 3A K P1 4A 4G 4B 5F 5A 5B 6F 6A 6B 7F 7A 7B S1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 38 11 LIQUID CRYSTAL DISPLAY 11 1 AKD 0275 0285 BASIC ...

Page 41: ...7E DISC 6D 4 5 6 7 38 37 36 35 8 9 10 11 34 33 IC NO LCD NO COM1 COM2 COM3 COM4 17 31 32 33 34 35 36 37 38 39 40 2H 2A 1D LOC LOUD COM1 2G 2O 2F 1C 1E MO COM2 2K 2L 2N 1G 1F CH COM3 2D 2M 2E 1B 1A AUT COM4 18 19 20 21 22 40 41 42 43 IC NO LCD NO COM1 COM2 COM3 COM4 32 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 6A PTY 5B 5H 5A 4B 4H 4A 3B 3H 3A TA 2B 6O 6F 5I 5G 5O 5F 4I 4G 4O 4F 3I 3G 3O 3F 2I 6...

Page 42: ...BLUE PINK RED 3 4 5 6 7 8 9 11 13 14 15 16 17 18 19 NOTE The red cable must be connected via the car s ignition lock to prevent unwanted discharge of the car battery if it is not used for longer periods of time NOTE If wiring connection are made wrong the unit will not operate properly and it could be damaged B 4 SPEAKERS 1 Violet Rear Right 2 Violet Black Rear Right 3 Gray Front Right 4 Gray Blac...

Page 43: ...he holder into the car radio slot Fasten the holder by pulling and bending the tabs which are located around the holder as illustrated HOW TO REMOVE THE APPARATUS Press the release knob to open up the front panel and detach it by pulling it towards you Insert the enclosed handles into the slots of the unit as illustrated while pressing the handle lightly then pull the unit out of the holder ...

Page 44: ...ection case Attaching the front panel 1 Holding the panel at its top and bottom edges 2 Attach one side of the panel lightly first then push the other side of the panel into the unit Keep in mind If it works malfunction take the panel off and put it back again Do not touch the contact pins on the rear of the front panel this can cause contact errors If the contacts are not clean clean contacts wit...

Page 45: ...es When the speaker terminals have been shorted When the covering of the speaker cords has been worn away or cut and the wires inside are touching the vehicle body When the inside temperature has risen due to some cause or other When an overcurrent has flowed and the supply voltage has increased to an abnormal level If he protection circuits function during operation find out what is wrong before ...

Page 46: ...WOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail G7F00E web dwe co kr TEL 82 2 360 7799 FAX 82 2 360 7877 edited by Mc Cem ...

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