Onkyo-TX8220-rec-sm 电路图 维修手册.pdf
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1、Service Manual Onkyo Corporation 2017 Not Applicable to Repair Please exchange the unit. Accessary Parts and Packing Material are described in Parts List. Ref.No. : 4695-R1 Final Issue TX-8220 Stereo Receiver Title Page CONTENTS Title Page (This page) Service Notes Service Precautions Note for Parts
2、 List Panel Reset Protection WiFi 5GHz Setting Model and Destination Firmware Check Idling Current Hookup and Setting Trouble Shoot Disassembly Schematic Diagram Exploded View Appendix THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). Model Color Type Power Requirement Remarks TX-8220
3、 (B) - Black MMP AC 220 V to 240 V Europe TX-8220 (S) - Silver MMP AC 220 V to 240 V Europe TX-8220 (B) - Black MDC AC 120 V Canada/USA/(Mexico) RadioFans.CN 收音机爱 好者资料库 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON Service Notes Service Notes 1. Safety-related component warning! Components identifi
4、ed by mark on the schematic diagram and by mark “!” in the parts list are critical for risk of fire and electrical shock. Replace these components with ONKYO parts whose part numbers appear as shown in this manual. 2. Safety check after servicing (1) To ensure safety, check that the covered insulati
5、ng sheet or tube are removed, all parts and wires which are removed or disconnected while servicing have been put back to their original positions after servicing. (2) To insure structural integrity, check that all the screws or mechanical parts have been put back in their original positions after s
6、ervicing. (3) Check that in the process of servicing or replacing parts that the surrounding area has not been contaminated or adversely affected. (4) After servicing an insulation check on the external metal connectors and between the blades of the power plug must be performed. Method of checking i
7、nsulation resistance Unplug the power cord and short the both ends of the plug with a jumper wire. Using a 500V insulation resistance tester, check that the insulation resistance value between the plug of the power cord and externally exposed metal parts is 1M or greater. The mechanical power switch
8、 should be turned on if it is available. 3. Caution on replacing the battery Danger of explosion if rechargeable batteries is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. When disposing of used batteries, please comply with governmental regulat
9、ions or environmental public institutions rules that apply in your country / area. 4. Other Cautions When AC plug is non-polarized and if Main or Primary fuse enters in the Neutral line of AC Mains supply or if there is possibility of Main or Primary Fuse entering in the Neutral line of AC Mains sup
10、ply, then AC Mains supply must be disconnected to de-energize the circuit. Be sure to use only lead free solder. When soldering, please be careful not to use too much solder and affect adjacent components. This service manual is intended for qualified service technicians; it is not meant for the cas
11、ual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void
12、 the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. RadioFans.CN 收音机爱 好者资料库 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON Note for Parts List D 120V AC G 220230
13、V H 220230240V J 100V AC M 220240V AC P 230V AC U 100240V AC V 110240V W 120V220240V Z 1 Speaker System (without AMP.) : 0 Passive Subwoofer F Front Speaker C Center Speaker R Rear Speaker B Back Speaker A Australia B United Kingdom C North American D USA F Taiwan J Japan K Korea L Russia P Europe Q
14、 Hong Kong R China S Brazil T Thai U Worldwide Speaker System (without AMP.) : L Left channel R Right channel 0 Center channel Voltage Destination When parts list is EXCEL file, please refer to the following explanation about file name. P L _ T X S R 3 4 3 ( B ) M J J . x l s x Model No. Color (X) N
15、ot related to color (B) Black (M) Wood (BR) Brown (O) Orange (C) Cherry (P) Pink (G) Gold (R) Red (GR) Green (S) Silver (H) Gray (V) Violet (K) Black (W) White (L) Blue (Y) Yellow (LB) Light Blue Destination Look at the rear panel serial number 6 digit. J Voltage Look at the rear panel serial number
16、 5 digit. J Color File Name of Parts List File (EXCEL File) 1 There is a charge function and a power supply (adapter) is needed, but an adapter isnt bundled. RadioFans.CN 收音机爱 好者资料库 1 A B C D E 23456 123456 A B C D E Panel TX-8220 Front Panel Rear Panel Remote Control Unit RC-962R Dimensions (W x H
17、x D) : 17-1/8 x 5-7/8 x 12-15/16 (435 mm x 149 mm x 328 mm) Weight : 6.8 kg / 15 lbs (North American), 7 kg / 15.4 lbs (European) Accessory 1. Remote controller (RC-962R) (1) 2. Batteries (AAA/R03) (2) 3. FM indoor antenna (1) (North American models) FM/DAB antenna (1) (European models) 4. AM indoor
18、 antenna (1) (North American models) (European models) 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 TX-8220 Reset Speaker A/B + Srandby/On Reset Protection 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON POWER TRANS. T901 QPWBFA395AW3A QPWBFA394AW2A MCU IC7001 PROTECT MODE When the device detect either te
19、mperature, Electrical current and electrical voltage error, the device will be entered Stand-by mode. It means protect mode. VOLTAGE DRIVE RELAY A RL6001 (FL/FR) Power amp. ( Lch ) Q6022 Q6023 P6003 SPRLF THERMAL DETECT LUG9500 CURRENT DETECT Power Supply AC IN M POWER M POWER RELAY RL9001 FUSE F900
20、1 SEC-1 (HIGH) SEC-1 (LOW) FUSE F6001 F6003 RELAY RL6003 RL6004 Power Supply (H) (L) (H) or (L) SEC1H IPRO DC DETECT VPRO IPROTECT VPROTECT VOLTAGE DETECT VOLH VOLH THERMAL P9500 P6001 SUB TRANS. Power Supply for STANDBY SPEAKER A - OUT SEC-1(LOW) SEC-1(HIGH) Protection 5 4 3 2 1 6 D C A B D C A B 5
21、 4 3 2 1 6 COMMON PROTECT FUNCTION This function is a function created to avoid the electrolytic capacitor rupture due to turning on the power again when the amplifier circuit breaks down and smoke ignition by transistor breakdown. Operating principle The MCU detect either current, voltage and tempe
22、rature error in the device, the device will be shutodown and enter protect mode and enter standby mode. This mechanism of detect, Either VPROTECT、IPROTECT or THERMAL Signal occurred error, MCU will control RL6003 and RL6004 for power shut down and enter standby mode. *It will recovery to power on. R
23、epare If the device detect errors, you test power on again. When the device enter standby mode again, you should exchange Main board and Final transistors. It is very difficult for find where is wrong. 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 TX-8220 Model and Destination 1. Volume 25. 2. Test Mode T
24、uning/Preset + Standby/On Display “Test-_-_”. 3. Input UP Show Model Name, Destination and Band Type. Model and Destination Hookup and Setting 5 4 3 2 1 6 D C A B D C A B 5 4 3 2 1 6 COMMON No Sound No sound from connected player Chose input selector which is assigned to connected input terminal ? I
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