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Pioneer A-10-K [11/57] A 30 k
![Pioneer A-10-K [11/57] A 30 k](/views2/1199331/page11/bgb.png)
Содержание
- A 30 k 1
- A 30 s a 20 k a 20 s a 20 a 10 k a 10 s 1
- Integrated amplifier 1
- Rrv4297 1
- Ac leakage test 2
- Leakage current check 2
- Product safety notice 2
- Safety information 2
- Safety precautions 2
- This service manual is intended for qualified service technicians it is not meant for the casual 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 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 2
- Contents 3
- Notes on soldering 4
- Service precautions 4
- Accessories 5
- Continuous power output both channels driven at 20 hz to 20 khz 5
- Frequency response 5
- Input sensitivity impedance 5
- Output level impedance 5
- Signal to noise ratio ihf shorted a network 5
- Speaker load impedance 5
- Specifications 5
- Tone control when volume is set to 5
- Basic items for service 6
- Check points after servicing 6
- Item to be checked regarding audio 6
- See the table below for the items to be checked regarding audio 6
- To keep the product quality after servicing confirm recommended check points shown below 6
- Jigs list 7
- List of assemblies 7
- Pcb locations 7
- Update jig ggf1675 farmware update 7
- Block diagram 8
- Overall connection diagram 8
- A 30 k 10
- Block diagram 10
- A 30 k 11
- Diagnosis 12
- Troubleshooting 12
- Is 15v of mute circuit properly supplied 14
- Is there a signal at power amplifier input r301 r302 14
- Isn t f_mute set to h isn t the sound muted 14
- Keeping the prohibition of power on after 1 amp failure is detected and 1 power protection is detected 15
- Protection circuit description 15
- Protection operation 15
- A 30 k 16
- Each protection operations above are identified by blinking timing of standby led the blinking of led is continued until the power supply is turned on again 16
- For the blinking specification of led refer to protect led display specifications shown below 16
- How to reset the prohibition of power on 16
- Press front key direct speaker b at the same time for 2 seconds or more continuously the key prohibition mode after 1 amp failure is detected and 1 power protection is detected is released and the power supply is turned on 16
- Protect led display specifications 16
- Standby led display after protection is detected 16
- Analog function switch 17
- Hvilc78212 17
- Ic information 17
- Cvinju7181rb1 18
- Signal level sensor system 18
- Top view 18
- Cvianam1656a 19
- Micro controller 19
- Pin layout 19
- Block diagram 20
- Cvianam1656a 20
- Micro controller 20
- Cvianam1656a 21
- Micro controller 21
- Service mode 21
- Disassembly 22
- 1 remove the screw ctw3 6jr 23
- 2 cut the two clampers chr301 3 disconnect the two connectors 23
- A 30 k 23
- Bottom chassis 23
- Diagnosis 23
- Front section 23
- Ground cable from the headphone assy 23
- Headphone assy 23
- Main assy 23
- Bottom view 24
- Direction of insulator 27
- Where to attach the sound quality improvement tape 27
- Connection diagram 29
- Each setting and adjustment 29
- Farmware updating 29
- How to check the firmware version 29
- If the power supply is turned on in this status the product is reset to the factory shipping status 29
- In standby status press front key direct speakers a at the same time 5 seconds at this time the version can be checked with the indicator 29
- Necessary tool 29
- Led display at update 30
- Update procedure 30
- Adjustment condition 31
- Adjustment procedure 31
- How to adjust the idle current 31
- Exploded views and parts list 32
- Packing section 32
- 1 packing section parts list 33
- 2 contrast table 33
- 3 ac power cord see contrast table 2 4 polyethylene bag cpb1a013w 5 packing case see contrast table 2 33
- A 30 k 33
- A 30 k pwsyxe8 a 30 s pwsyxe8 a 20 k pwsyxe8 a 20 s pwsyxe8 a 20 cuxe a 10 k syxe8 and a 10 s syxe8 are constructed the same except for the following 33
- Mark no description part no 33
- Nsp 11 aaa r03 dry cell battery x 2 12 polyethylene bag accessary see contrast table 2 13 polyethylene bag manual cpb1a197z 33
- Packing pad l cps1a914 7 packing pad r cps1a915 8 speaker caution en cqe1a539z 9 operating instructions see contrast table 2 nsp 10 serial label s vrw2017 33
- 1 cut from the sub panel 34
- A 30 k 34
- Exterior section a 30 a 20 34
- 1 exterior section a 30 a 20 parts list 35
- A 30 k 35
- 2 contrast table 36
- A 30 k 36
- A 30 k pwsyxe8 a 30 s pwsyxe8 a 20 k pwsyxe8 a 20 s pwsyxe8 and a 20 cuxe are constructed the same except for the following 36
- A 30 k 37
- A 30 k 38
- Exterior section a 10 38
- 1 exterior section a 10 parts list 39
- 2 contrast table 39
- A 10 k syxe8 and a 10 s syxe8 are constructed the same except for the following 39
- A 30 k 39
- Main assy 40
- Schematic diagram 40
- A 30 k 41
- Main assy a 30 k s azw7487 a 20 k s azw7489 a 20 azw7490 a 10 k s azw7491 41
- Front assy and second power sw assy a 30 a 20 42
- A 30 k 43
- Front assy a 30 k s azw7482 a 20 k s azw7483 a 20 azw7484 a 10 k s azw7485 43
- Second power sw assy a 30 k s a 20 k s a 20 azw7478 43
- Master volume assy a 30 k s azw7476 a 20 k s a 20 a 10 k s azw7481 44
- Master volume assy tone assy and headphone assy 44
- A 30 k 45
- Headphone assy azw7479 45
- Tone assy azw7477 45
- Main assy 46
- Pcb connection diagram 46
- A 30 k 47
- Side a 47
- A 30 k 48
- Main assy 48
- Side b 48
- A 30 k 49
- Cn93 cn92 49
- Side b 49
- Front assy 50
- Side a 50
- Side b 50
- A 30 k 51
- Side a 51
- Side b 51
- Master volume assy 52
- Side a side a 52
- Side b side b 52
- Side a side a 53
- Side b side b 53
- Tone assy 53
- E f f e 54
- Headphone assy 54
- Headphone assy and second power sw assy a 30 a 20 54
- Second power sw assy 54
- Side a side a 54
- Side b side b 54
- List of assemblies 55
- Mark found on some component parts indicates the importance of the safety factor of the part therefore when replacing be sure to use parts of identical designation 55
- Parts marked by nsp are generally unavailable because they are not in our master spare parts list 55
- Pcb parts list 55
- When ordering resistors first convert resistance values into code form as shown in the following examples 55
- Wiring number reading substitute list 55
- Cautions 56
- Front assy 56
- Main assy 56
- Pcb parts list for a 30 k s unless otherwise noted 56
- A 30 k 57
- Capacitors 57
- Front assy 57
- Headphone assy 57
- Mark no description part no 57
- Master volume assy 57
- Miscellaneous 57
- Resistors 57
- Second power sw assy a 30 a 20 57
- Semiconductors 57
- Tone assy 57
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