InterM-ACR60-rec-sm 维修电路原理图.pdf
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1、http:/www.inter-MADE IN KOREANO: 9007978900SERVICEMANUALC O M P A C T D I S CRECEIVERACR-60/120RadioFans.CN 收音机爱 好者资料库1AMP SECTION1. OFF SET VOLTAGEA. SettingSet the master volume controls minimum.B. ConnectionC. AdjustmentControl OFFSET until voltmeter is the “0” position.2. IDLE CURRENTA. SettingS
2、et the master volume controls minimum.B. ConnectionC. AdjustmentAdjust IDLE so that the current through the R56, R57, R58, R59 become 10 milliampere. When thatvoltage across the IDLE2 TO IDLE3 becomes 10 millivolt, the current becomes 10 milliampere.ELECTRICAL ADJUSTMENT PROCEDUREElectrical Adjustme
3、nt Procedure1, 2, 3Micom Data (CD)4, 5, 6, 7Specifications8Electrical Parts List9, 10, 11, 12Top and Bottom View of P.C. Board13, 14, 15Wiring Diagram16Block Diagram 17Schematic Diagram18, 19, 20, 21, 22, 23Exploded View of Cabinet & Chassis / Mechanical Parts List24, 25Assy Drawing26, 27CONTENTSRad
4、ioFans.CN 收音机爱 好者资料库FM SECTION1. IF ALIGNMENTA. Set up the test equipment as Fig. 2-1.B. Adjust the cross T604 and T605 so that the S curve developed on the oscilloscope become pointsymmetry to the centry frequency poine of 10.7MHz with a maximum amplitude.C. If the genescope is not available, set t
5、he unit detuned and adjust the cross of T604, T605 so that noiseoutput is maximized.32AM SECTION1. IF ALIGNMENTA. Set up the test equipment as Fig. 1-1 and set the genescope output level to 110dB (300mV).B. Adjust T603 so that the figure developed or the oscilloscope become laterally symmetrical wit
6、h the axisof symmetry at 450kHz and it has a maximum amplitude as well.2. RF TUNING ALIGNMENTA. Set up the test equipment as Fig. 1-2.B. Set AM SG to 30% modulation at 400Hz and 30-40dB output.C. Set the up and down switch of the frequency display to 603 (or 600) kHz.Adjust AM SG to 603 (or 600) kHz
7、, adjust T602 (RF) to maximize audio frequency output level.D. Set the up and down switch of the frequency display to 1404 (or 1400) kHz, adjust AM SG to 1404 (or1400) kHz, and adjust AM trimmer capacitor C605 to maximize audio frequency output level.E. Repeat steps and so that output is maximized a
8、t the given frequencies.Fig. 1-1Fig. 1-2FEATURESMemory ROM: 32-Kbyte (KS88C2432/P2432) ROM: 16-Kbyte (KS88C2416/P2416) RAM: 1056-Byte (KS88C2432/P2432,KS88C2424/P2424) RAM: 544-Byte (KS88C2416/P2416,KS88C2408/P2408) Data memory mapped I/OOscillation Sources Crystal, ceramic, RC (main) Crystal for su
9、bsystem clock Main system clock frequency 1-10 MHz(3 MHz at 1.8 V, 10 MHz at 2.7 V) Subsystem clock frequency: 32.768 kHz CPU clock divider (1/1, 1/2, 1/8, 1/16)Two Power-Down Modes Idle (only CPU clock stops) Stop (System clock stops)Interrupts 6 level 8 vector 8 internal interrupt 1 level 8 vector
10、 8 external interrupt45 I/O Pins 45 configurable I/O pinsBasic Timer Overflow signal makes a system reset Watchdog function8-Bit Timer/Counter A Programmable 8-bit timer Interval, capture, PWM MODE Match/capture, overflow interrupt8-Bit Timer/Counter B Programmable 8-bit timer Carrier frequency gene
11、rator16-Bit Timer/Counter 0 Programmable 16-bit timer Match interrupt generates16-Bit Timer/Counter 1 Programmable 16-bit timer Interval, capture, PWM mode Match/capture, overflow interruptWatch Timer Real-time and interval time measurement Clock generation for LCD Four frequency outputs for buzzer
12、soundLCD Controller/Driver Maximum 16-digit LCD direct drive capability Display modes: static, 1/2 duty (1/2 bias) 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias)A/D Converter Eight analog input channels 50s conversion speed at 1 MHz fADCclock 10-bit conversion resolution8-Bit Serial I/O Interface 8
13、-bit transmit/receive mode 8-bit receive mode LSB-first/MSB-first transmission selectable Internal/external clock sourceVoltage Booster LCD display voltage supply S/W control en/disable 3.0 V driveVoltage Detector Programmable detection voltage(2.2V, 2.4V, 3.0V, 4.0V) En/Disable S/W selectableInstru
14、ction Execution Times 400 ns at 10 MHz (main) 122 us at 32.768 kHz (subsystem)Operating Temperature Range 40C to 85COperating Voltage Range 1.8V to 5.5VPackage Type 80-pin QFP 80-pin TQFPKS88C2432s ROM version device KS88C2424 (ROM 24 Kbyte)KS88C2432s ROM version device KS88C2408 (ROM 8 Kbyte)5KS88-
15、SERIES MICROCONTROLLERSSamsungs KS88 series of 8-bit single-chip CMOS microcontrollers offers a fast and efficient CPU, a widerange of integrated peripherals, and various mask-programmable ROM sizes. Among the major CPUfeatures are: Efficient register-oriented architecture Selectable CPU clock sourc
16、es Idle and Stop power-down mode release by interrupt Built-in basic timer with watchdog functionA sophisticated interrupt structure recognizes up to eight interrupt levels. Each level can have one or moreinterrupt sources and vectors. Fast interrupt processing (within a minimum of four CPU clocks)
17、can beassigned to specific interrupt levels.KS88C2416/P2416/C2432/P2432 MICROCONTROLLERThe KS88C2416/P2416/C2432/P2432 single-chip CMOS microcontroller are fabricated using the highlyadvanced CMOS process, based on Samsungs newest CPU architecture.The KS88C2416 is a microcontroller with a 16-Kbyte m
18、ask-programmable ROM embedded.The KS88C2432 is a microcontroller with a 32-Kbyte mask-programmable ROM embedded.The KS88P2416 is a microcontroller with a 16-Kbyte one-time-programmable ROM embedded.The KS88P2432 is a microcontroller with a 32-Kbyte one-time-programmable ROM embedded.Using a proven m
19、odular design approach, Samsung engineers have successfully developed the KS88C2416/P2416/C2432/P2432 by integrating the following peripheral modules with the powerful SAM8 core: Six programmable I/O ports, including five 8-bit ports and one 5-bit port, for a total of 45 pins. Eight bit-programmable
20、 pins for external interrupts. One 8-bit basic timer for oscillation stabilization and watchdog functions (system reset). Two 8-bit timer/counter and two 16-bit timer/counter with selectable operating modes. Watch timer for real time. 8-input A/D converter Serial I/O interfaceThe KS88C2416/P2416/C24
21、32/P2432 is versatile microcontroller for camera, LCD and ADC application,etc. They are currently available in 80-pin TQFP and 80-pin QFP package.OTPThe KS88P2416/P2432 are OTP (One Time Programmable) version of the KS88C2416/C2432microcontroller. The KS88P2416 microcontroller has an on-chip 16-Kbyt
22、e one-time-programmable EPROMinstead of a masked ROM. The KS88P2432 microcontroller has an on-chip 32-Kbyte one-time-programmable EPROM instead of a masked ROM. The KS88P2416 is comparable to the KS88C2416,both in function and in pin configuration. The KS88P2432 is comparable to the KS88C2432, both
23、infunction and in pin configuration.MICOM DATA (CD)4PIN ASSIGNMENT7BLOCK DIAGRAM6544/1056ByteRegisterFileOSC/RESETBasicTimerWatchTimerI/OPortandInterruptControl16/32-KbyteROMSAM88RCCPU8-BitTimer/CounterB16-BitTimer/Counter016-BitTimer/Counter1I/OPort0I/OPort1A/DConverterI/OPort28-BitTimer/CounterAI/
24、OPort3TAOUT/TAPWM/P3.1TACLK/P3.2TACAP/P3.3TBPWM/P3.0T1CAP/P1.0T1CLK/P1.1T1OUT/T1PWM/P1.2P0.0-P0.7/INT0-INT7P1.0-P1.7AVREFAVSSP2.0-P2.7/ADC0-ADC7LCDDriverSerialI/OPortP3.0-P3.4VoltageDetectorVVLDREFI/OPort5I/OPort4VoltageBoosterCBCAVLC0-VLC2COM0-COM3SEG0-SEG15SEG16-SEG31SI/P1.7SO/P1.5SCK/P1.6P4.0-P4.
25、7P5.0-P5.7RESETBUZ/P1.4XOUTXTOUTXINXTINKS88C2416/P2416/C2432/P2432(80-QFP-1420C)6463626160595857565554535251504948474645444342411234567891011121314151617181920212223248079787776757473727170696867666525262728293031323334353637383940SEG9SEG8SEG7SEG6SEG5SEG4SEG3SEG2SEG1SEG0COM3COM2COM1COM0VLC2VLC1VLC0C
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