Kenwood-A4030-rec-sm维修电路原理图.pdf

SPEAKERS +-+ R +-+ L LR B A FM 75 GND AM ANTENNA REC OUTPLAY IN AUXMD / TAPE1TAPE2/ MONITOR PLAY IN REC OUT PLAY INPLAY IN PHONOCD L R Phono jack (E63-0068-15) Miniature phone jack (E11-0293-05) Power cord bushing (J42-0083-05) AC power cord * (E30-) Lock terminal board (E70-0052-05) Phono jack (E63-0047-15) Phono jack * (E63-) Lock terminal board (E70-0047-05) AC outlet * (E03-) * Refer to parts list on page 21 . 70% AUDIO RECEIVER AR-404/KRF-A4030/ A4030E/A4030-S SERVICE MANUAL 2000-1/B51-5595-00 (K/K) 3174 A SPEAKERS B STANDBY POWER MULTI CONTROL SOUNDSOURCE DIRECT AUTOBANDMEMORY INPUT SELECTOR VOLUME CONTROL UPDOWN BALANCEPTYTA/NEWSDISPLAY PHONES ON/STANDBY ONOFF TAPE 2/MONITOR Indicator (B12-0385-04) Knob * (K29-) Front glass * (B10-) Panel * (A60-) Knob * (K29-) Knob * (K29-) Knob * (K29-) Knob * (K29-) Knob * (K29-) Phone jack (E11-0127-05) Knob * (K27-) RadioFans.CN FM (T90-0836-05) (A70-1266-05): RC-R0709.KPMX (A70-1267-05): RC-R0708.E1E2E3 indoor antenna AC plug adaptor (1) (E03-0115-05) (1)AM (T90-0852-05) loop antenna (1) Batteries (R06/AA) (2) *Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.) Remote control unit (1) AR-404/KRF-A4030/A4030E/A4030-S 2 CONTENTS / ACCESSORIES / CAUTIONS CONTENTS / ACCESSORIES / CAUTIONS. 2 CIRCUIT DESCRIPTION.3 ADJUSTMENT.6 PC BOARD . 7 SCHEMATIC DIAGRAM . 11 EXPLODED VIEW .20 PARTS LIST.21 SPECIFICATIONS .27 Contents Accessories Resetting the Microcomputer If the microcomputer may malfunction (unit cannot be operated, or shows an erroneous display) if the power cord is unplugged while the power is ON, or due to some other external factor. If this happens, execute the following pro- cedure to reset the microcomputer and return the unit to its normal operating condition. For U.S.A. and Canada Unplug the power cord from the wall outlet, then plug it back in while holding down the POWER key. Except for U.S.A. and Canada With the power cord plugged in, turn the POWER key OFF. Then, while holding down the ON/STANDBY key, press the POWER key. Please note that resetting the microcomputer will clear the contents of the memory and returns the unit to the state it was in when it left the factory. Cautions RadioFans.CN AR-404/KRF-A4030/A4030E/A4030-S 3 CIRCUIT DESCRIPTION 1. BACK UP DATA AND INITIAL STATE 1-1 BACK UP (1) AMP POWER.STANDBY INPUT SELECTOR .TUNER BALANCE .CENTER SPEAKER A RELAY .ON SPEAKER B RELAY .OFF VOLUME LEVEL. -66dB BASS LEVEL.0dB TREBLE LEVEL .0dB INPUT LEVEL .0dB SOURCE DIRECT.OFF TAPE2/MONITOR.OFF (2) TUNER BAND .FM PRESET CHANNEL.- FREQUENCY.LOWER LIMIT VALUE K1.FM:87.50MHz AM:530kHz E1/E3 .FM:87.50MHz AM:531kHz AUTO/MANUAL .AUTO DISPLAY MODE .FREQUENCY E ON THRUST RECEIVING .OFF MODE T1 VOLUME.OFF(-66dB) 1-2 INITIAL SETTING The initial setting is performed when the AC power cord is plugged into the AC power wall out let while pressing the power (STANDBY) key. 3. TEST MODE 3-1 SETTING Turn the power ON while pressing the BAND key. 3-2 CANCELLATION Unplug the AC power cord from an AC power wall outlet. 3-3 STARTING ACTIVE CONTENTS The power on state is entered whenever the power is trued on while pressing the BAND key. All functions are initialized and activated in the all light- ing mode. All lighting mode is canceled when any main units keys are pressed. The normal display obtained when the selector is set to TUNER then appears. E2PROM check(Etype only). Check the reading data and the writing data of the E2PROM after setting the test mode. Display shows blank if the reading data and writing data are the same. Display shows LW if the different data will be written to E2PROM. 3-4 ACTIVE CONTENTS The mute control is not activated when the mode is switched. The test mode will be terminated by plugging it off the power source or by initializing it when all the settings will be initialized. During the test mode, it can be operated in a special manner that is deferent from an ordinary operation by using the keys on the remote control or the main body ,specifically as shown in the following table (3-5 CON- TENTS). Channel space will be no changed in the test mode. 3-5 CONTENTS 3-5-1 TUNER FUNCTION WITH THE SELECTOR ON TUNER (E TYPE ONLY) DESTINA- TION TUNER TYPE BAND RECEIVING CHANNEL SPACE IF PLL REFERENCE FREQUENCYRANGE FREQUENCY DSW3 (D507) DSW2 (D505) DSW1 (D504) DSW0 (D510) K,PK1(1700) FM AM 87.5MHz108.0MHz 530kHz1700kHz 100kHz 10kHz +10.7MHz +450kHz 25kHz 10kHz 0000 M,XE1 FM AM 87.5MHz108.0MHz 531kHz1602kHz 50kHz 9kHz +10.7MHz +450kHz 25kHz 9kHz 0011 MK2(1600) FM AM 87.5MHz108.0MHz 530kHz1610kHz 100kHz 10kHz +10.7MHz +450kHz 25kHz 10kHz 0001 E E3 RDS FM AM 87.5MHz108.0MHz 531kHz1602kHz 50kHz 9kHz +10.7MHz +450kHz 25kHz 9kHz 0101 DSW0DSW3(DIODE SW)* 0: NONE DIODE,1:ADD DIODE 2. DESTINATION LIST OF TUNER Bass and treble are selected while the sound key is pressed. 3-5-2 AMP FUNCTION WITH THE SELECTOR ON SOMETHING OTHER THAN TUNER One touch max,min setting for Audio level. SOUND KEY KEYMASTER VR. BASSTREBLE BAND-89dB0dB+10dB AUTO0dB0dB+10dB MEMORY-10dB0dB+10dB OPERATION FUNCTIONFL DISPLAYREMARKS KEY (EX.) PTYS LEVEL(1)(SLEVEL), (RF ATT)OFF RF ATT(2)(SLEVEL), (RF ATT)ON (3)(NORMAL), (RF)ATT OFF DISPLAYP.CALL UP P.CALL FREQUENCY- TA/NEWSPI CODEPI 0000PI CODE ON/OFF (1) (2) (3) CYCLE RadioFans.CN AR-404/KRF-A4030/A4030E/A4030-S 4 CIRCUIT DESCRIPTION 4. Microprocessor CXP82840-163Q, CXP82832-162Q (X09, IC51) 4-1 Microprocessor periphery block diagram diagram FL DISPLAY ED51 10GRID 16SEGMENT X8 X3 X2 X2 X2 X2 X09, S516 SERIAL COMMUNICATION DATA BUSY VOLUME ENCODER X09, S518 MULTI ENCODER X09, S517 SELECTOR ENCODER X2 X3 8.0MHz CE RESET X3 X2 TUNER MUTE AUDIO MUTE X09, IC52 EEPROM -10dB ATT SD STEREO KS0KS7KR0KR2 X1 10-BT-216GK LED (STANDBY) POWER RELAY SPEAKER A RELAY SPEAKER B RELAY X09, IC51 X09, IC3 SELECTOR IC TC9164AN REMOCON CXP82840-163Q (E TYPE ONLY) CXP82832-162Q (OTHERS) Receiver u-COM X09, IC54 RDS IC X05, IC2 TUNER SAA6579/R E TYPE ONLY E TYPE ONLY LC72131 X09, IC2 VOLUME IC M62492FP BR24C02 KEY MATRIX KR0(12)KR1(13)KR2(14) KS0(81)-S.DIRECTBAND KS1(80)SPEAKER B*DIMMER/PTY*P.CALL UP/DISPLAY KS2(79)SPEAKER APOWER*P.CALL DOWN/TA NEWS KS3(78)- KS4(77)-DSW3(507) KS5(76)DSW2(D505)DSW1(D504)DSW0(D510) KS6(75)TAPE2/MONITORSOUNDAUTO KS7(74)-BALANCEMEMORY PTY,DISPLAY and TA/NEWS keys are only RDS version(E type). Pin No.Pin name I/ODescriptionActive 1,2G9,G10OFL grid control (9,10). 3NC-u-Com +5V power supply. 4RDS,CKIRDS IC clock input control. (E type only) 5RDS,DTIRDS IC data input control. (E type only) 6NCIu-Com +5V power supply. 7VOL.ENC.AIVolume encoder A (CW) signal. 8REMOCONIRemote control signal input. 9VOL.ENC.BIVolume encoder B (CCW) signal. 10,11NC-Unused. 1214KR0KR2IKey return (02). 15PROTECTIProtection detection signal input.H: Protection ON 16S.DATAI/OSerial communication data. 17S.BUSYI/OSerial communication busy. 18E2.DATAI/OE2 PROM data. 19E2.CLKOE2 PROM clock. 20SEL.ENC2 CWISelector encoder A(CW) input. 21SEL.ENC2 CCW2ISelector encoder B(CCW) input. 22MLT. ENC3 CW3IMulti control encoder A(CW). 23MLT. ENC3 CCW3IMulti control encoder B(CCW). 248/16ISerial communication 8bit/16bit changeover. 2527NC-Unused. 28AV REF-Analog reference voltage (+5V). 29S.LEVELISignal level A/D input. (E type only) 3032NC-Unused. 33PLL.DOIPLL IC DO signal input. (E type only) 34PLL.STEREOITUNER stereo signal input.L: STEREO 35PLL.SDITUNER SD signal input.L: TUNED 36RCV.CEIReceiver chip enable signal input.L: ENABLE 37AVSS-Analog ground. 38RESETIu-Com reset. 39EXTALIMain clock(8MHZ). 40XTAL-Main clock(8MHZ). 41VSS-u-Com ground. 42TX-Unused. 43TEXIGround. 44VDD-Analog power supply (+5V). 45VFDP-FL power supply(-33V). 46SEL.STBOTC9164AF strobe.H: LATCH 47SEL/PLL.DTOSelector/PLL IC data signal output. 48SEL/PLL.CKOSelector/PLL IC clock signal output. 49PLL.CEOPLL IC CE signal output. 50T.MUTEOTuner mute control.L: MUTE ON 51A.MUTEOAudio mute control.L: MUTE ON 52NC-Unused. 5310dB.ATTOVolume 10dB attenuator control.L: ATT ON 54VOL.DTOVolume IC(M62492FP) data control. 55VOL.CKOVolume IC(M62492FP) clock control. 56VOL.STBOVolume IC(M62492FP) strobe control. 5759NC-Unused. 60RELAY.AOSP. relay A control.H: RELAY ON 61RELAY.BOSP. relay B control.H: RELAY ON 62,63NC-Unused. 64POWER.RLYOPower relay control.H: RELAY ON 65STANDBY.LEDOSTANDBY LED control.H: LED ON 6671NC-Unused. 72LIMITEROOutput power control at SP. (A+B). K/M/X only. 73S.W MUTE-Unused. 74,75KS6/KS7OKey scan 6,7. 7681P1/KS5P6/KS0OFL segment 16/key scan 50. 8288P7P13OFL segment 713. 89VDDOu-Com +5V power supply. 9092P14P16OFL segment 1416. 93100G1G8OFL GRID 18. 4.2 Microprocessor pin descriptions: X09,IC51 5 CIRCUIT DESCRIPTION AR-404/KRF-A4030/A4030E/A4030-S ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 6 ADJUSTMENT AR-404/KRF-A4030/A4030E/A4030-S No.ITEMINPUT SETTINGS OUTPUT SETTINGS RECEIVER SETTINGS ALIGNMENT POINTS ALIGN FORFIG. 1 DISTORTION (STEREO) (C) 98.0MHz 1kHz, 68.25kHz dev. Selector : L or R Pilot : 6.75kHz dev. 70dBf (ANT. input) (B)98.0MHz IFT (TUNER UNIT: A1) Minimum distortion (L or R) (a) 2TUNING LEVEL (A) 98.0MHz MONO 1kHz, 75kHz dev. 25dBf (ANT. input) (B) MONO 98.0MHz VR1 (TUNER UNIT) Adjust VR1 and stop at the point where ED51 (TUNED) goes on. (a) 1DISCRIMINATOR (A) 98.0MHz 1kHz, 40kHz dev. Connect a DC voltmeter between CN2 1 and CN2 2 (TUNER UNIT) MONO 98.0MHz L4 (TUNER UNIT) 0V(a) 3 DISTORTION (STEREO) 98.0MHz (C) 1kHz, 40kHz dev. Selector : L or R Pilot : 6kHz dev. 70dBf (ANT. input) (B) AUTO 98.0MHz IFT (TUNER UNIT : A1) Minimum distortion (L or R) (a) 2 DISTORTION (MONO) (A) 98.0MHz 1kHz, 40kHz dev. MONO 70dBf (ANT. input) (B) MONO 98.0MHz L5 (TUNER UNIT) Minimum distortion(a) 4 1IDLE CURRENTVolume: 011 mV VR1 (L) VR2 (R) Connect a DC Volumeter across CN11 (L) CN12 (R) TUNING LEVEL (A) 98.0MHz MONO 1kHz, 40kHz dev. 25dBf (ANT. input) (B) MONO 98.0MHz VR1 (TUNER UNIT) Adjust VR1 and stop at the point where ED51 (TUNED) goes on. (a) (b) FM SECTION : EXCEPT E type SELECTOR : FM FM SECTION : E type only SELECTOR : FM Adjust NO.1 and NO.2 repeat. 70dBf (ANT. input) AUDIO SECTION SPEAKERS +-+ R +-+ L LR B A FM 75 GND AM ANTENNA REC OUTPLAY IN AUXMD / TAPE1TAPE2/ MONITOR PLAY IN REC OUT PLAY INPLAY IN PHONOCD L R (A) (B) (C) (D) AM SG FM-MPX-SG FM-MPX-SGPOLAR SG AC voltmeter Oscilloscope Distortion meter Dummy antenna (b) (a) Dc voltmeter CN11, 12 SYSTEM CONNECTIONS ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?