Onkyo-TXSR578-avr-sm 电路图 维修手册.pdf
《Onkyo-TXSR578-avr-sm 电路图 维修手册.pdf》由会员分享,可在线阅读,更多相关《Onkyo-TXSR578-avr-sm 电路图 维修手册.pdf(118页珍藏版)》请在收音机爱好者资料库上搜索。
1、TX-SR578 SERVICE MANUAL AV RECIEVER Black, Silver and Golden models MODELTX-SR578 120V AC, 60Hz 230V AC, 50Hz BMDD, BMDC BMDF BMPP, SMPP BMMO, SMMO BMMQ, BMPA Ref. No. 4193 032010 220-240V AC, 50/60Hz RC-764M (PURE AUDIO) (RT/PTY/TP) (PURE AUDIO) (RT/PTY/TP) European, Australian and Asian modes used
2、 NOTE: SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE MEAS
3、UREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 TX-SR578 SERVICE PROCESURE 1. Replacing the fuses 2. Safety check out (U.S.A. model only) After correcting the original service problem, p
4、erform the following safety check before releasing the unit to the customer. Leakage current Check Measure the leakage current to a known earth ground (water pipe or conduct etc.) by connecting a leakage current tester between the earth ground and exposed metal parts of the unit (input/output ground
5、 terminals, screw heads or metal over Plug the power supply cord directly into a 120Vac 60Hz wall socket and turn ON/STANDBY button on. Any current measured must not exceed 0.5mA. 3. To initialize setting This symbol located near the fuse indicates that the fuse used is show operating type, For cont
6、inued protection against fire hazard, replace with same type fuse, For fuse rating, refer to the marking adjacent to the symbol. Ce symbole indique que le fusible utilise est e lent. Pour une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbo
7、l est apposre. : Canedian model : North American model : Australian model REF. NO.PART NAMEDESCRIPTION : Saudi Arabia model : European model : Taiwanese model Initialization of memories. Press ON/STANDBY button while pressing down VCR/DVR button whenthe unit is POWER ON, then the FLT displays CLEAR,
8、 and turn to STAND-BY. Remove pow er cord from power line. F6901FUSE10A-UL/T-233252330GR F6901orFUSE10A-T/UL-ST2252333GR F6902FUSE10A-UL/T-233252330GR F6902orFUSE10A-T/UL-ST2252333GR F901FUSE4A-SE-EAK FUSE252077GR F901FUSE8A-UL/T-23325232 9GR F901orFUSE8A-T/UL-ST2252 261GR F901orFUSE4A-SE-TL250V2522
9、77GR PART NO.REMARKS : Hong Kong model RadioFans.CN 收音机爱 好者资料库 TX-SR308/ /508/ 578/ 608 HT-R280/ 380/ 538/ 580/ 680/ 980/ C230/ C260 DTR-20.2/ 30.2 TROUBLE SHOOT-1 No Power TX-SR308/ /508/ 578/ 608 HT-R280/ 380/ 538/ 580/ 680/ 980/ C230/ C260 DTR-20.2/ 30.2 No Power YES NO YES YESNO NO YES BAETC-037
10、6/0390 (Power supply) BADG-0364 (MPU Board) JL901 4pin +12V 2pin +10V BAETC-0376/0390 (Power supply) Replace Power Supply Board orRepair Sub Transformer T902 and itsperipheral circuit. BAETC-0376/0390 (Power supply) BADG-0364 (MPU Board) After Power on, Voltage atJL901_1pin is changed from +12V t o
11、0V? BADG-0364 (MPU Board) Replace Q701 and also repairits peripheral circuit. BAETC-0376/0390 (Power Supply) F901 is blown out? BAAF-0355(AF Board) BADG-0346 (MPU Board) After Power on, Voltage at P2001 22/21pin +5V 17/18pin +12V BAETC-0359/0352/0345/ (trans teminal Board) BAVD-0375/0389 (Video boar
12、d) This is just for general reference and does not including every single case. Replacing F901 will not improve the unit. After replacing F901 on BAETC-0376/0390(Power supply) either of F901 on Power supply Board or F6901/F6902 on BAAF-0341(AF Board) blows out? Replace “AF Board”. or “D6901 (Power s
13、upply diode)” “Power AMP(Final_TR and A_Class AMP) ” and also repair their peripheral circuit. After Power on, Voltage at JL952 AC10V Replace Power Transformer or Repair its peripheral circuit. Replace Video Board or Repair D901/Q9023/Q9031 and their peripheral circuit. YES YES NO NO NO RadioFans.CN
14、 收音机爱 好者资料库 TX-SR308/ /508/ 578/ 608 HT-R280/ 380/ 538/ 580/ 680/ 980/ C230/ C260 DTR-20.2/ 30.2 TROUBLE SHOOT- 2 No Display A 1 2 3 4 5 BCDEFGH FLD_CLKFLD_SDD(DATA) FLD_CS V:1V/cm H:02Msec/cm V:1V/cm H:10sec/cm V:1V/cm H:1sec/cm No Display YES YES NONO NO NO YES YES NO YES Timing of Serial Communic
15、ation This is just for general reference and does not include every single case. The above waveforms are got by Oscilloscope of Maximum Horizontal Sensitivity: 100MHz. The results depend on the oscilloscope. Fluorescent Display Tube is not working? Replace Fluorescent Display Tube or BADIS-0373/0387
16、(Display Board). BAPS-0342/0349/0356(-VP Board) JL953 between 2pin-4pin: AC3.3V BAPS-0342/0349/0356 (-VP Board) JL951 1pin-2pin AC3.3V BAPS-0342/0349/0356 (-VP Board) R950(8.2 ) is disconnected? BAPS-0342/0349/0356 (-VP Board) Replace R950 (8.2 ) or -VP Board Replace Power transformeror Repair its p
17、eripheral circuit. BAPS-0342/0349/0356 (-VP Board) Replace -VP Board or Check for signal line damage etc. and fix any damages. BAPS-0342/0349/0356 (-VP Board) JL953 3pin -33V 1pin and 5pin +3.3V BAPS-0342/0349/0356(-VP Board) JL951 3pin-4pin AC40V BAPS-0342/0349/0356 (-VP Board) Replace -VP Board or
18、 Repair Q960/D960/D962/R961 and their peripheral circuit. BADIS-0373/ 0387 (Display Board) P701 26pin FLD_SDD 27pin FLD_CLK 28pin FLD_CS Transmission of each of the signals is correct? BADG-0413(MPU Board) Replace or Repair Q701 and their peripheral circuit. MPU Board. Replace Display Board or repai
19、r Q7003 and their peripheral circuit. 1 byte data address data 1 byte data data to be YES BADIS-0373/ 0387 (Display Board) NO NO YES TX-SR578 HT-R680 HT-R980TX-SR578 HT-R680 HT-R980 TROUBLE SHOOT-3 No Sound A 1 2 3 4 5 BCDEFGH 6 7 8 IJK Y NNN Y YYNN NY Y N N N NN Y Y Y Y N N YY N Y N NNN Y NN YY N Y
20、 Y Y DIR_FLRDIR_LRCKDIR_BCKDIR_MCK DSP_FLR/SLR/CSWCX_LRCKCX_SCLKHDMI_MCK HDMI_FLRHDMI_LRCKHDMI_BCK V:1V/cm H:0.1/cmV:1V/cm H:5/cmV:1V /cm H:0.1v/cmV:1V/cm H:0.1v/cm HDMI_SPDIF V:1V/cm H:0.1/cm BAAF-0348(AF Board) AUDIO-SEL_OUT SBR-J4140 SR-J4167 FR-J4171 C-J4170 FL-J4172 SL-J4169 SBL-J4186 refer to
21、a figure BATRM-0368(TRM Board) JL600(AMP_OUT) SR-6pin FR-5pin C-4pin FL-3pin SL-2pin SBR-7pin SBL-1pin BATRM-0368(TRM Board) JL603 1Pin +22V BCAF-0348 (AF Board) P6901(+52V) P6902(-52V) BAAF-0348(AF Board) Q4170 3pin +5V Q4171 3pin -15V D4172 anode +7V D4171 cathode -7V BAHDM-0403(HDMI Board) DIR_OU
22、T P8001 3pin DIR_BCK 5pin DIR_LRCK 7pin DIR_FLR P8002 23pin DIR_MCK BADG-0364 (MPU Board) DSP_OUT P8002 24pin DSP_FL/R P8001 8pin DSP_SL/R , 10pin DSP_CSW , 4pin CX_SCLK . 6pin CX_LRCLK BADG-0364(MPU Board) BADG-0364(MPU Board) DAC_OUT BADG-0403(HDMI Board) JL801 2pin and 4pin +12V BAETC-0359(torans
23、 terminal) JL952 1-3pin AC10V BADG-0364(MPU Board) P2001 21 22pin +5V BADG-0364(MPU Board) P2001 21 22pin +5V BAETC-0352(torans terminal) JL952 1-3pin AC10V BAVD-0375(Video Board) BAHDM-0403(HDMI Board) P8001 16pin HDMI_SPDIF . 15pin HDMI_MCK 13pin HDMI_BCK 11pin HDMI_LRCK 9pin HDMI_FLR BADG-0403 (H
24、DMI Board) JL801 1&4pin +12V BAETC-0352(torans terminal) JL952 1-3pin AC10V Note: This is just for general reference and does not include every single case. The above waveforms are got by Oscilloscope of Maximum Horizontal Sensitivity: 100MHz. The results depend on the oscilloscope. No Sound from HD
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Onkyo-TXSR578-avr-sm 电路图 维修手册 Onkyo TXSR578 avr sm 维修 手册
收音机爱好者资料库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。



Marshall-9100-62-02-Schematic电路原理图.pdf


