HarmanKardon-AVR135BK-avr-sm维修电路原理图.pdf
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1、AVR135 AVR135BK AUDIO/VIDEO RECEIVER SERVICE MANUAL 230V international version Power for the Digital Revolution. RadioFans.CN 收音机爱 好者资料库 Audio Section Stereo Mode Continuous Average Power (FTC) 50 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohms Six-Channel Surround Modes Po
2、wer per Individual Channel Front L Amplifier is in protection mode Check speaker wire connections for shorts at receiver and light around power switch is reddue to possible shortspeaker ends Amplifier is in protection mode Contact your local Harman Kardon service center due to internal problems No s
3、ound from surround or Incorrect surround mode Select a mode other than Stereo center speakers Input is monaural There is no surround information from mono sources Incorrect configuration Check speaker mode configuration Stereo or Mono program material The surround decoder may not create center- or r
4、ear-channel information from nonencoded programs Unit does not respond to Weak batteries in remote Change remote batteries remote commands Wrong device selected Press the AVR selector Remote sensor is obscured Make certain front panel sensor is visible to remote or connect remote sensor Intermittent
5、 buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent lights, motors or other electrical appliances Letters flash in the channel indicator Digital audio feed paused Resume play for DVD display and digital audio stops Check that Digital Input is selected In additi
6、on to the items shown above, additional information on troubleshooting possible problems with your AVR 135, or installation-related issues, may be found in the list of Frequently Asked Questions which is located in the Product Support section of our Web site at . 41 Processor Reset In the rare case
7、where the units operation or the dis- plays seem abnormal, the cause may involve the erratic operation of the systems memory or microprocessor. To correct this problem, first unplug the unit from the AC wall outlet and wait at least three minutes. After the pause, reconnect the AC power cord and che
8、ck the units operation. If the system still malfunctions, a sys- tem reset may clear the problem. To clear the AVR 135s entire system memory includ- ing tuner presets, output level settings, delay times and speaker configuration data, press and hold the Tone Mode Button 5 button for three seconds.Th
9、e unit will turn on automatically. NOTE: Resetting the processor will erase any configu- ration settings you have made for speakers, output levels, surround modes, digital input assignments as well as the tuner presets.The unit will be returned to the factory presets, and all settings for these item
10、s must be reentered. If the system is still operating incorrectly, there may have been an electronic discharge or severe AC line interference that has corrupted the memory or microprocessor. If these steps do not solve the problem, consult an authorized Harman Kardon service center. RadioFans.CN 收音机
11、爱 好者资料库 AMPLIFIER SECTION BIAS ADJUSTMENT CUP11651Y (BIAS PCB) Measurement condition . No input signal or volume position is minimum. Standard value. . Ideal current = 48mA ( 5%) . Ideal DC Voltage = 25.92mV ( 5%) DC VOLTMETER.Connect to CN81,CN82,CN83,CN84,CN85,CN86,CN87 NO.ChannelAdjust forAdjustm
12、ent 1Front Left25.92mV (5%) VR83 CN82 VR86 2Front Right25.92mV (5%) 25.92mV (5%) 25.92mV (5%) 25.92mV (5%) VR84 CN86 VR82 3Center VR85 4Surround Left VR86 CN81 VR87 5Surround Right VR87 VR81 CN87 6 7 Surround Back Left Surround Back Right 25.92mV (5%) 25.92mV (5%) VR82 VR81(235 input or output mode
13、selected by software; input or push-pull output. Software assignable pull-up. Alternately, P0.0-P0.7 can be used as the PG output port (PG0-PG7). D 80-73 PG0-PG7 P1.0 - P1.7 I/O Bit programmable port; input or output mode selected by software; input or push-pull output. Software assignable pull-up.
14、D 72-65 P2.0 - P2.7 I/O Bit programmable port; input or output mode selected by software; input or push-pull output. Software assignable pull-up. Alternately, P2.0P2.7 can be used as I/O for TIMERA, TIMERB, D/A, SIO D,D-2 8-1 SO SI SCK DAOUT TBPWM TACK TACAP TAOUT P3.0 - P3.7 I/O Bit programmable po
15、rt; input or output mode selected by software; input or push-pull output. Software assignable pull-up. Alternately, P3.0P3.7 can be used as I/O for TIMERC0/C1, TIMER10/11 D 3023 T1CK0 T1CK1 T1CAP0 T1CAP1 T1OUT0 T1OUT1 TCOUT0 TCOUT1 RadioFans.CN 收音机爱 好者资料库 S3C84BB/F84BB PRODUCT OVERVIEW Table 1-1. S3
16、C84BB/F84BB Pin Descriptions (80-QFP) (Continued) Pin Name Pin Type Pin Description Circuit Type Pin Number Share Pins P4.0 - P4.7 I/O Bit programmable port; input or output mode selected by software; input or push-pull output. Software assignable pull-up. P4.0-P4.7 can alternately be used as inputs
17、 for external interrupts INT0-INT7, respectively (with noise filters and interrupt controller) D-1 38-31 INT0 INT7 P5.0 - P5.7 I/O Bit programmable port; input or output mode selected by software; input or push-pull output. Software assignable pull-up. Alternately, P5.0P5.3 can be used as I/O for se
18、rial por, UART0, UART1, respectively. G 22-17,11-9 TxD1 RxD1 TxD0 RxD0 P6.0 - P6.7 O N-channel, open-drain output only port. F 5854,51-49 P7.0 - P7.7 I General-purpose digital input ports. Alternatively used as analog input pins for A/D converter modules. E 48-45,42-39 ADC0- ADC7 P8.0 - P8.5 I/O Bit
19、 programmable port; input or output mode selected by software; input or push-pull output. Software assignable pull-up. P8.4, P8.5 can alternately be used as inputs for external interrupts INT8, INT9, respectively (with noise filters and interrupt controller) D,D-1 64-59 INT8,INT9 RadioFans.CN 收音机爱 好
20、者资料库 PRODUCT OVERVIEW S3C84BB/F84BB Table 1-1. S3C84BB/F84BB Pin Descriptions (80-QFP) (Continued) Pin Name Pin Type Pin Description Circuit Type Pin Number Share Pins AD0 - AD7 I Analog input pins for A/D converter module. Alternatively used as general-purpose digital input port 7. E 4845 4239 P7.0
21、P7.7 AVREF, AVSS - A/D converter reference voltage and ground - 43, 44 - RxD0, RxD1 I/O Serial data RxD pin for receive input and transmit output (mode 0) D 18, 21 P5.3, P5.1 TxD0, TxD1 O Serial data TxD pin for transmit output and shift clock input (mode 0) D 20, 22 P5.2, P5.0 TACK I External clock
22、 input pins for timer A D 3 P2.5 TACAP I Capture input pins for timer A D 2 P2.6 TAOUT O Pulse width modulation output pins for timer AD 1 P2.7 TBPWM O Carrier frequency output pins for timer B D 4 P2.4 TCOUT0 TCOUT1 O Timer C 8-bit PWM mode output or counter match toggle output pins D 24,23 P3.6,P3
23、.7 T1CK0 T1CK1 I External clock input pins for timer 1 D 39,30 P3.0,P3.1 T1CAP0 T1CAP1 I Capture input pins for timer 1 D 28,27 P3.2,P3.3 T1OUT0 T1OUT1 O Timer 1 16-bit PWM mode output or counter match toggle output pins D 26,25 P3.4,P3.5 SI,SO,SCK I/O Synchronous SIO pins D 7,8,9 P2.1,P2.0, P2.2 RE
24、SETB I System reset pin (pull-up resistor: 240 k?)B 19 - TEST I Pull down register connected internally - 16 - VDD1, VDD2, VSS1, VSS2 - Power input pins - 12,53, 13,52 - XIN, XOUT - Main oscillator pins - 15,14 - RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 ? ? ? ? ? ? ? NJM2581 ? ? DUAL SUPPLY W
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