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Pioneer M-AX10, Руководство по обслуживанию

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61

M-AX10

Continuous power output
(driven simultaneously at 20Hz to 20kHz) **
(European mode only)

Bridge mode

T.H.D. 0.15% 6 

Ω ....................................................................

220W 

× 

2

T.H.D. 0.09% 8 

Ω ....................................................................

190W 

× 

2

Dual, Seaprate mode

T.H.D. 0.15% 3 

Ω ....................................................................

100W 

× 

4

T.H.D. 0.09% 4 

Ω ......................................................................

90W 

× 

4

T.H.D. 0.08% 8 

Ω ......................................................................

60W 

× 

4

DIN Continuous power output
(driven simultaneously at 1kHz)
(European mode only)

Bridge mode

T.H.D. 1% 6 

Ω ..........................................................................

230W 

× 

2

T.H.D. 1% 8 

Ω ..........................................................................

200W 

× 

2

Dual, Seaprate mode

T.H.D. 1% 3 

Ω ..........................................................................

110W 

× 

4

T.H.D. 1% 4 

Ω ..........................................................................

105W 

× 

4

T.H.D. 1% 8 

Ω ............................................................................

65W 

× 

4

Total harmonic distortion **

Bridge mode

20 Hz to 20 kHz,100W, 8

Ω ..........................................................

0.08%

Dual, Seaprate mode

20 Hz to 20 kHz,30W, 8

Ω .............................................................

0.06%

Input sensitivity/Impedance
INPUT 1,2 .......................................................................... 1V/47k

Ω

Frequency Response
INPUT 1,2 ............................................ 5Hz to 150 kHz +0dB, -3dB

Damping factor (1kHz/20Hz to 20kHz)

............................................................................................ 400/300

SPECIFICATIONS

Amplifier Section
(U.S model only)
When set to Bridge mode:
Continuous average power output is 200 Watts* per
channel, min.,at 6 ohms from 20 Herz to 20,000 Herz
with no more than 0.2%** total harmonic distortion.

When set to Dual mode ,Seaprate mode:
Continuous average power output is 90 Watts* per
channel, min.,at 3 ohms from 20 Herz to 20,000 Herz
with no more than 0.2%** total harmonic distortion.

Signal-to Noise ratio (IHF short circuit, A network
ATT THROUGH ON)
INPUT 1,2 .............................................................................. 125dB

Channel separation(20Hz to 20 kHz)
Bridge mode ........................................................................... 104dB
Dual, Seaprate mode ............................................................. 115dB

Power supply/Mischellaneouse
Power requirements
U.S.model ................................................................. AC120V 60Hz
European model ................................................... AC230V 50/60Hz

Power comsumption
U.S.model ............................................................................... 370W
European model ...................................................................... 400W

Dimensions ................................... 440 (W) 

× 

420 (D) 

× 

178 (H) mm

                                                        17

5

/

16

 (W) 

× 

16

1

/

2

 (D) 

× 

7 (H)in.)

Weight (without package) .............................. 25.8 kg (56 lbs  14oz)

Accessories
Operation instructions .................................................................... 1
Warranty card ................................................................................ 1

NOTE
Specifications and design subject to possible modifications
without notice ,due to improvement.

*  Mesured pursuant to the Federal Trade Commissions' Trade
   Regulation rule on Power Claims for Amplifier.

** Mesured by Audio Spectrum Analyzer.

Содержание M-AX10

Страница 1: ...c M AX10 RRV2345 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 3 3 SCHEMATIC DIAGRAM 12 4 PCB CONNECTION DIAGRAM 24 5 PCB PARTS LIST 36 6 ADJUSTMENT 41 CONTENTS 7 GENERAL INFORMATION 42 7 1 IC 42 7 2 PROTECTION CIRCUIT 52 7 3 EXPLANATION 54 7 3 1 PRODUCT OVERVIEW 54 7 3 2 CIRCUIT DESCRIPTION 55 8 PANEL FACILITIES AND SPECIFICATIONS 58 T ZZV JULY 2000 Printed in Japan Type Model Power Requ...

Страница 2: ...evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage wattage etc Replacement parts which have these special safety characteristics are identified in this Service Manual Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual ...

Страница 3: ...marked by NSP are generally unavailable because they are not in our Master Spare Parts List The 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 Screws adjacent to mark on the product are used for disassembly Mark 2 CONTRAST TABLE M AX10 KU CA and M AX10 NY are constructed the same ex...

Страница 4: ... 57 52 11 52 52 11 71 71 71 46 71 27 71 71 71 46 25 25 38 47 28 68 45 80 68 60 73 53 37 21 44 44 69 80 65 65 44 44 10 71 6 64 64 23 15 4 5 15 1 2 4 22 44 44 26 33 37 45 38 61 61 45 54 33 61 45 61 45 45 37 19 88 24 62 62 62 62 70 70 70 70 70 70 62 62 62 62 16 16 85 40 42 42 44 44 42 42 42 51 40 20 30 35 50 75 3 9 35 36 50 67 8 67 91 24 73 29 4 44 44 22 4 26 74 48 72 76 72 76 74 48 22 22 17 47 29 18...

Страница 5: ...5 M AX10 C D E F 32 32 73 73 73 73 64 73 75 73 64 52 6 52 11 52 52 11 71 71 71 46 71 27 71 71 71 46 25 25 60 71 6 87 83 81 82 75 12 12 75 86 12 12 82 81 83 for KU type ...

Страница 6: ...1082 44 Screw Steel ABA1192 45 Screw Steel ABA1193 1 EXTERIOR PARTS LIST Mark No Description Part No 46 Screw Steel ABA1207 47 Screw Steel ABA7006 48 Screw Steel ABA7045 49 M4 SH Screw ABA7051 50 PCB Spacer 3 12 AEC1372 51 Washer PVC RBF1034 52 Screw VBA1056 53 Side AL L AAH7033 54 Side AL R AAH7034 55 Top Plate F AL AAH7035 56 Top Plate R AL AAH7036 57 Bonnet Escutcheon AAK7658 58 Rear Mole R AAP...

Страница 7: ...ower Transformer ATS7277 ATS7251 8 Fuse FU1 VEK1029 REK 106 10A 4A NSP 12 Cable J23 J24 ADX7335 Not used 81 Fuse FU2 FU3 AEK7069 Not used 20A 82 Fuse Holder AKR7002 Not used NSP 85 IPC Caution Label AAX7784 Not used NSP 86 Fuse Card AAX7795 Not used NSP 87 Fuse Card AAX7796 Not used NSP 88 Micro Fuse Caution Label AAX7810 Not used 89 65 Label ARW7050 Not used NSP 90 FCC Label VRW1559 Not used NSP ...

Страница 8: ...D E F F E 3 or 4 26 27 26 27 25 40 21 32 1 or 2 26 27 26 25 21 33 32 31 31 23 20 30 13 14 35 22 11 11 19 24 22 15 28 38 28 29 44 28 28 42 28 38 6 37 38 28 37 16 8 8 10 13 8 8 17 41 9 38 38 38 38 18 18 18 18 9 24 39 43 47 5 34 36 30 32 27 40 7 7 10 G I H K A ...

Страница 9: ... 25 Damping Plate AMR7281 NSP 26 Tape PNM1249 27 Fiber Washer RBF1045 28 Screw ABA1192 29 Screw BBT30P100FCC 30 Screw ABA1207 31 Rivet AEC 441 32 Nylon Rivet AEC7242 NSP 33 PCB Spacer 14 DEC1387 34 Card Spacer DEC1772 35 PC Support VEC1549 36 Cushion A PED1001 37 Screw BBZ30P080FCC 38 Screw IBZ30P060FCC 39 Nut NK70FCU 40 Binder ZCA SKB90BK 41 Input Plate MET ANG7274 42 Locking Card Spacer VEC1596 ...

Страница 10: ...3 43 38 1 3 6 7 22 19 24 20 25 16 11 4 12 39 32 42 46 44 44 2 1 38 2 3 38 3 3 37 42 34 30 44 44 43 44 28 33 45 9 21 8 27 10 12 29 27 29 5 13 44 48 44 41 44 49 44 41 44 31 47 49 42 42 47 44 3 36 40 35 10 14 15 26 18 17 23 E D C F ...

Страница 11: ...anel L PLS AAK9044 22 Cover AAK9045 23 LED Filter L PLS AAK9046 24 Mode Panel PLS AAK9047 25 Mode Lens PLS AAK9048 26 Panel S PLS AAK9049 27 Door Cushion AED9014 28 Tape AEH7009 29 Door Yoke MET ANB7187 30 Name Plate G AL PAN1377 31 Cushion A PED1001 32 Knob S PLS AAB7200 33 Knob M AL AAB7201 34 Block ANL7015 35 Power Button ABS VNK4159 36 Side Panel L AL AAH7037 37 Side Panel R AL AAH7038 38 Pane...

Страница 12: ...AM 3 1 OVERALL CONNECTION DIAGRAM AND JOINT ASSY L712 RTF1167 R712 2 2 L711 RTF1167 VR ASSY AWX7334 LED ASSY AWX7277 FRONT ASSY AWX7276 F E D B INPUT L ASSY AWX7273 V AMP L ASSY AWX7278 C AMP L ASSY KU CA AWX7673 NY AWX7280 POWER SUPPLY ASSY KU CA AWX7664 NY AWX7662 G H I ...

Страница 13: ...When ordering service parts be sure to refer to EXPLODED VIEWS and PARTS LIST or PCB PARTS LIST A From AC Power Cord JOINT ASSY AWX7283 SW ASSY AWX7282 A C INPUT R ASSY AWX7274 C AMP R ASSY KU CA AWX7674 NY AWX7281 V AMP R ASSY AWX7279 J K L ...

Страница 14: ... PIOWER TRANSFORMER 6 6 5 5 1 1 2 2 4 4 3 3 CN701 120V KU CA 230V NY J805 J803 J801 CN803 J802 J804 CN853 CN852 FU1 CN851 FU1 KU VEK1029 10A NY REK 106 4A J806 J808 POWER SUPPLY ASSY KU CX AWX7664 NY AWX7662 B K CN601 C2 C4 and SW ASSY AWX7282 C I CN501 C1 C3 and ...

Страница 15: ...AX10 15 A B C D 5 6 7 8 5 6 7 8 B CN806 CN804 CN805 24V 24V A CN711 A CN712 D CN901 NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE WITH SAME TYPE AND RATINGS ONLY CAUTION ...

Страница 16: ...M AX10 16 A B C D 1 2 3 4 1 2 3 4 D E F 3 3 FRONT LED VR ASSY CN901 J902 CN751 J901 CN761 VR ASSY AWX7334 F LED ASSY AWX7277 E B CN804 ...

Страница 17: ...M AX10 17 A B C D 5 6 7 8 5 6 7 8 D SWITCHES S901 ATT THROUGH S902 ATT HOLD S903 INPUT S904 ILLUMINATION S905 MODE FRONT ASSY AWX7276 D ...

Страница 18: ...M AX10 18 A B C D 1 2 3 4 1 2 3 4 G 3 4 INPUT L INPUT R ASSY JA101 12dB FLAT AMP JA102 INPUT L ASSY AWX7273 G ...

Страница 19: ...M AX10 19 A B C D 5 6 7 8 5 6 7 8 G J201 CN201 JA201 JA202 DAC VR J101 CN101 INPUT R ASSY AWX7274 J K CN401 A CN714 H CN301 A CN713 AUDIO SIGNAL SIGNAL ROUTE J ...

Страница 20: ...M AX10 20 A B C D 1 2 3 4 1 2 3 4 H 3 5 V AMP L V AMP R ASSY CN301 CN302 14dB POWER AMP G J101 A CN715 V AMP L ASSY AWX7278 H DC ADJ HL DC ADJ LL ...

Страница 21: ...M AX10 21 A B C D 5 6 7 8 5 6 7 8 H J401 J402 CN403 CN401 CN402 J301 J302 CN303 J306 V AMP R ASSY AWX7279 K L CN607 L CN608 L CN602 J J201 A CN716 I CN507 I CN508 I CN502 AUDIO SIGNAL SIGNAL ROUTE K ...

Страница 22: ...M AX10 22 A B C D 1 2 3 4 1 2 3 4 I 3 6 C AMP L C AMP R ASSY CN505 CN507 CN508 CN502 CURRENT AMP C AMP L ASSY KU CA AWX7673 NY AWX7280 I H J301 H J302 H CN303 IDLE ADJ HL IDLE ADJ LL ...

Страница 23: ... 8 5 6 7 8 I L CN605 CN607 CN608 CN602 CN601 CN603 CN604 R R R R R R R R R R R R R R R R To C1 C3 To C2 C4 J501 J514 CN501 J513 J512 J511 C AMP R ASSY KU CA AWX7674 NY AWX7281 L K J401 K J402 K CN403 AUDIO SIGNAL SIGNAL ROUTE ...

Страница 24: ...ison between the main parts of PCB and schematic diagrams is shown below 3 The parts mounted on this PCB include all necessary parts for several destinations For further information for respective destinations be sure to check with the schematic diagram 4 View point of PCB diagrams Symbol In PCB Diagrams Symbol In Schematic Diagrams Part Name B C E D D G G S S B C E B C E D G S B C E B C E B C E T...

Страница 25: ...M AX10 25 A B C D 1 2 3 4 1 2 3 4 JOINT ASSY A SW ASSY C LED ASSY E VR ASSY F ANP7281 A ANP7281 A ANP7282 C ANP7281 A SIDE B ...

Страница 26: ...01 L CN601 A CN712 POWER TRANSFORMER A CN711 I CN501 AC POWER CODE POWER TRANSFORMER C CN701 IC805 IC803 Q812 Q810 Q811 Q809 Q808 Q806 Q807 Q805 Q804 IC801 Q802 IC802 IC804 Q803 Q801 ANP7282 C POWER SUPPLY ASSY B SIDE A 4 2 POWER SUPPLY ASSY ...

Страница 27: ...M AX10 27 A B C D 1 2 3 4 1 2 3 4 Q816 Q821 Q814 Q818 Q817 Q820 Q819 Q815 Q813 ANP7282 C POWER SUPPLY ASSY B SIDE B ...

Страница 28: ...AX10 28 A B C D 1 2 3 4 1 2 3 4 B CN804 E CN751 F CN761 FRONT ASSY D IC903 Q946 Q949 Q945 IC902 Q943 Q904 Q901 Q903 Q947 Q918 Q902 Q952 Q935 Q934 Q932 Q933 IC904 Q942 IC901 ANP7282 C SIDE A 4 3 FRONT ASSY ...

Страница 29: ...M AX10 29 A B C D 1 2 3 4 1 2 3 4 FRONT ASSY D Q916 Q915 Q919 Q926 Q928 Q930 Q951 Q950 Q948 Q917 Q907 Q914 ANP7282 C SIDE B ...

Страница 30: ...0 30 A B C D 1 2 3 4 1 2 3 4 A CN713 H CN301 INPUT L ASSY G INPUT L ASSY G Q101 Q106 IC101 IC102 Q119 Q120 Q129 Q131 Q116 Q117 Q115 Q126 Q128 Q118 Q107 Q110 Q111 Q114 SIDE A SIDE B ANP7281 A 4 4 INPUT L ASSY ...

Страница 31: ...0 31 A B C D 1 2 3 4 1 2 3 4 A CN714 K CN401 INPUT R ASSY J INPUT R ASSY J Q216 Q217 Q215 Q226 Q228 Q218 Q201 Q206 IC201 IC202 Q219 Q220 Q229 Q231 Q207 Q210 Q211 Q214 SIDE A SIDE B ANP7281 A 4 5 INPUT R ASSY ...

Страница 32: ...4 I CN508 I CN502 I CN507 A CN715 G J101 Q321 Q324 Q333 VR301 VR302 Q334 Q309 Q316 Q305 Q308 Q301 Q304 Q337 Q340 Q338 Q329 Q332 Q331 Q336 Q335 Q325 Q328 Q341 Q344 V AMP L ASSY H V AMP L ASSY H SIDE A SIDE B ANP7294 C 4 6 V AMP L ASSY ...

Страница 33: ...4 A CN716 L CN608 L CN602 L CN607 J J201 Q437 Q440 Q438 Q429 Q432 Q431 Q436 Q435 Q425 Q428 Q441 Q444 Q421 Q424 Q433 VR401 VR402 Q434 Q409 Q416 Q405 Q408 Q401 Q404 V AMP R ASSY K V AMP R ASSY K SIDE A SIDE B ANP7294 C 4 7 V AMP R ASSY ...

Страница 34: ... C D 1 2 3 4 1 2 3 4 H H J302 J301 H CN303 VR502 VR501 Q515 Q502 Q501 Q520 Q519 Q504 Q506 Q508 Q510 Q507 Q509 Q505 Q503 Q512 Q511 Q517 Q518 Q513 C AMP L ASSY I C AMP L ASSY I SIDE A SIDE B ANP7294 C 4 8 C AMP L ASSY ...

Страница 35: ... C D 1 2 3 4 1 2 3 4 K CN403 K K J401 J402 Q601 Q602 Q619 Q620 Q608 Q610 Q606 Q604 Q603 Q605 Q607 Q609 Q617 Q611 Q612 Q618 VR602 VR601 Q615 Q613 C AMP R ASSY L C AMP R ASSY L SIDE A SIDE B ANP7294 C 4 9 C AMP R ASSY ...

Страница 36: ...SY AWX7278 AWX7278 V AMP R ASSY AWX7279 AWX7279 C AMP L ASSY AWX7673 AWX7280 C AMP R ASSY AWX7674 AWX7281 NSP AF COMPLEX A ASSY AWM7410 AWM7410 INPUT L ASSY AWX7273 AWX7273 INPUT R ASSY AWX7274 AWX7274 NSP SW ASSY AWX7282 AWX7282 NSP JOINT ASSY AWX7283 AWX7283 NSP VR ASSY AWX7334 AWX7334 NSP AF COMPLEX B ASSY AWM7507 AWM7506 POWER SUPPLY ASSY AWX7664 AWX7662 FRONT ASSY AWX7276 AWX7276 NSP LED ASSY...

Страница 37: ...0 C801 C802 CKCYF103Z50 RESISTORS R803 R804 RD1 4LMF470J R813 R814 RD1 4MUF124J R831 R839 RS1 10S100J R815 R818 RS1 10S101J R819 R822 RS1 10S301J R836 R838 RS1 10S3R3J R805 R808 RS1LMF103J Other Resistors RS1 10S J OTHERS CN805 CN806 10P MT CONNECTOR 1 173981 0 CN804 16P CONNECTOR 9604S 16C H851 H852 FUSE CLIP AKR1004 811 822 HEAT SINK ANH7100 CN851 AC CODE SOCKET RKP1751 CN852 AMP U P CONNECTOR R...

Страница 38: ...1 RTF1167 SWITCHES AND RELAYS RY101 RY103 VSR1008 CAPACITORS C101 C102 C105 C108 220pF ACE7012 C140 47µF ACH7116 C103 C104 CCCSL560K2H C135 CCSQCH100D50 C132 C134 CCSQCH101J50 C128 CCSQCH470J50 C129 C130 CEAT100M50 C121 C122 CEHAZA101M25 C131 CEHAZA220M25 C125 C126 CEHAZL471M25 C115 C118 CEHAZL471M50 C119 C120 C123 C124 CFTYA104J50 C109 C110 CQHA561J2A C141 C142 22µF RCH1077 C111 C114 47µF 10V RCH...

Страница 39: ...A224J50 C509 CFTYA474J50 C517 C518 CKSQYF104Z50 C515 C516 47µF 10V RCH1139 RESISTORS R519 R520 R535 R536 RS1 10S1502F R501 R502 RS1 10S1602F R503 R504 RS1 10S6801F R521 R522 R537 R538 RS1 10S8201F R509 R512 R531 R534 RS2LMFR22J R513 R514 RS3LMF2R2J VR501 VR502 4 7KΩ ACP7003 Other Resistors RS1 10S J OTHERS CN502 23P CONECTOR 9604S 23C CN507 CN508 2P TOP POST B2B EH 501 PCB BINDER VEF1040 KN501 KN5...

Страница 40: ...0S1001D R449 R452 RS1 10S101J R414 RS1 10S1101D R486 RS1 10S30R0D R485 RS1 10S33R0D R413 R416 R425 R428 RS1 10S3900D R447 R448 RS1 10S5100D VR401 VR402 220Ω ACP7002 Other Resistors RS1 10S J OTHERS CN403 23P CONNECTOR 9604S 23C J401 2WIRE SHIELD HOUSING ADX7258 J402 2WIRE SHIELD HOUSING ADX7259 KN401 EARTH METAL FITTING VNF1084 C AMP R ASSY AWX7674 SEMICONDUCTORS IC601 IC602 IC PROTECTOR 10A AEK70...

Страница 41: ... recommended that output terminal is open at this check mode Channel L High ch L Low ch R High ch R Low ch Adjustment point VR501 VR502 VR601 VR602 Measurement point CN505 CN505 CN605 CN605 Between pins 1 and 2 Between pins 3 and 4 Between pins 1 and 2 Between pins 3 and 4 Table 6 1 Adjustment points of idle current Table 6 2 Adjustment values of idle current Adjustment Timing Adjustment value Pin...

Страница 42: ...T HOLD O 12 P25 IN5 INPUT2 O 13 P24 IN4 DACVR O 14 P23 IN3 A3 SEPARATE O 15 P22 IN2 A2 INVERT O 16 P21 IN1 A1 SPRYH O 17 P20 IN0 A0 SPRYG O 18 Vref CE Vref Reference voltage input 19 Xin Xin I Clock input 20 Xout Xout O Clock output 21 Vss Vss Power supply voltage input 22 Vcc Vcc Power supply voltage input 23 P50 Xcin VR4 I 24 P51 Xcout VR5 I 25 RESET RESET I Reset input 26 P30 INT0 A11 BACKUP I ...

Страница 43: ...ns 30 ms later Last memory writing to the EEPROM is performed each time a key is operated but not performed in the backup processes Port processing 1 I O ports are specified as output ports 2 Output ports are set to L Backup targets INPUT1 2 ATT THROUGH ATT HOLD The level value is also backed up when ON ILL The VOLUME level and mode settings at the mechanical switch are checked each time the power...

Страница 44: ...p tion mode and stops the oscillation of system clock 1 6 POWER ON OFF 1 POWER ON After POWER ON port 16 SPRYH Pin16 is set to L and port 31 FMT Pin31 is set to H Port 31 FMT is set to L after 3 seconds and muting is set to OFF After another 5 seconds 8 seconds after POWER ON ports 16 SPRYH and 17 SPRYG Pin17 are set to H and relay is set to ON Power ON 3 sec 5 sec 16 SPRYH 31 FMT 2 POWER OFF Port...

Страница 45: ...ROM read out is NG Timer tminit INITCONT processing Relay Timer tmprot MUTE Timer tmmute INPUT SW set ATT through SW set MODE SW set ILL lights processing DAC VOL transfer processing At ATT through ON At ATT through OFF Tact key accept start Timer tmdcerr Silent mode Fig 1 Timing chart of initializing process from the reset LED lights processing 1 2 3 4 5 6 3 sec 7 8 200 msec 9 0 2 sec 5 sec ...

Страница 46: ...2 to H and L alternately at each key input Alternates H and L alternately at each key input Sets INDIN1 and INDIN2 to H and L alternately at each key input Key disabled Both INDIN1 and INDIN2 always lit H 38 ATT HOLD 11 IND ATT HOLD L 40 ILL None Key disabled Always L Key disabled Always L Alternates H and L at each key input Key disabled with ATT THROUGH ON Key Input Port Indicator Process Port A...

Страница 47: ...ocessing ON OFF VOL data line processing OFF ON Silent processing Fig 2 Timing chart when ATT through key is pressed 2 3 40 msec 4 5 40 msec 6 9 0 2 sec 8 100 msec 200 msec 7 Port 16 SPRYH Pin16 is set to L 10 ms after ATT THROUGH switching signal input and relay is set to OFF After another 30 ms the INDICATOR port is processed Port 31 FMT Pin31 is set to H and muting is set to ON Switching proces...

Страница 48: ...HOLD Key Processing ATT HOLD key is pressed typ 8 msec 1 ILL key is pressed 1 2 typ 1 msec 2 typ 0 msec 4 5 typ 10 msec 3 6 3 6 Upon ATT HOLD key input the specified current volume value is held While ATT HOLD is ON the volume level stays at the held value even if the volume control is operated In Muting mode when the power is turned on or ATT THROUGH is switched from ON to OFF the ATT HOLD key is...

Страница 49: ...Volume Transfer IC901 When the status of port 29 VR1 changes port 29 VR1 port 30 VR2 port 42 VR3 port 23 VR4 and port 24 VR5 are checked to detect the VOLUME position With DUAL BRIDGE or SEPARATE the attenuation volume is read from the VOLUME position ATT volume table and transferred to the DAC IC in Serial mode MSB first When the transfer is completed LD port 2 is set to L then returned to H When...

Страница 50: ...5040 15 0025 PROCESSOR Attenuation dB Serial Data 0 5 sec 1 0 sec ON OFF ON OFF Indicator of the operating mode Indicator after the switch is operated 7 WARNING 7 1 Protection When abnormal amplifier output is detected the protection relay and function muting are controlled to warn the user When P DET port 41 becomes L FMT port 31 is set to H and port 16 SPRYH is set to L immediately At the same t...

Страница 51: ... 3 2 1 VREF RFB IOUT GND VDD CLK SRI LD 8 7 6 5 12 BIT D A CONVERTER 12 BIT DAC REGISTER 12 12 GND IOUT VDD CLK SRI 12 BIT INPUT SHIFT REGISTER LD VREF RFB RFB 2 3 1 5 7 6 4 8 7 3 Warning when switching ATT THROUGH from OFF to ON When ATT THROUGH is switched from OFF to ON the key becomes valid when it is held pressed for 2 seconds The ATT THROUGH ON OFF LED flashes during those 2 seconds DAC8043F...

Страница 52: ...15 Q511 and Q512 becomes open and shut down the relay RY501 and RY502 Also microcomputer receive P DET Low signal and activate the mute circuit and set OFF the relay control Tr Q513 2 Overcurrent detection circuit At the High CH Low CH output current amp of C AMP L ASSY side overcurrent is detected by Q503 and Q505 Q518 Q504 and Q506 and these transistors turned ON and P DET signal becomes Low Fol...

Страница 53: ...73 NY AWX7280 OVERCURRENT DETECTION CIRCUIT OVERCURRENT DETECTION CIRCUIT DC VOLTAGE DETECTION CIRCUIT DC VOLTAGE DETECTION CIRCUIT Fig 1 PROTECTION CIRCUITS HOUT L H CH L L CH L HOUT L LOUT L LOUT L SPRYH P DET P DET To U com IC901 23V ...

Страница 54: ...tantly stable sound quality immediately after you turn on the power Wide range linear circuit The wide range linear circuit has been enhanced to improve DC stability by newly employing highly accurate parts of 0 5 error and single chip dual transistors for a completely discrete structure that uses no DC servo or operational amplifier This enables natural and clear playback of low frequencies by ke...

Страница 55: ...nterruption ATT DATA input KEY input MODE SW INDICATOR FUNC MUTE MODE RY INPUT RY PROTECTION RY ATT CONTROL Protection circuit detection AC ON OFF information BACK UP RESET Backup Microcomputer Microcomputer LOCAL CIRCUT ON OFF MUTE 10A KU CA 4A NY Vref Iout MUTE Protection circuit detection Red Blk Blk Red Low ch OUTPUT VOLTAGE DUAL SEPARATE BRIDGE 37 1V 200W 6Ω 20V 100W 4Ω High ch 5V DAC IC LED ...

Страница 56: ...12dB 12dB 14dB 14dB DAC VR Dual Drive Mode Low ch High ch RED BLK RED BLK RED BLK RED BLK RED BLK RED BLK Low ch High ch 12dB 12dB 14dB 14dB DAC VR Separate Drive Mode Low ch High ch IN 1 IN 2 12dB 12dB 14dB 14dB DAC VR Bridge Drive Mode Full Range ...

Страница 57: ... in combination with a preamplifier you can bypass the DAC attenuator block using the ATT THROUGH function For this bypass switching the same small signal relay as with the INPUT switching clock is used 4 14 dB power amplifier block Pioneer s original Direct Energy MOSFET Amplifier and Wide Range Linear Circuits are mounted The circuits function as the inversion noninversion switching amplifier on...

Страница 58: ...ration Note however that it is not possible to turn ATT HOLD on and off while the output is muted eight seconds after switching the power on 4 ATT THROUGH BEWARE If this button is used the volume will be herted at maximum level Pressing the ATT THROUGH button for two seconds or longer causes the sound to be output through the speakers without passing through the attenuator circuit However because ...

Страница 59: ...ator lights up when ATT HOLD is ON INPUT INDICATORS These indicators light up to show whether INPUT 1 or INPUT 2 has been selected They both light up in Sepa rate mode PANEL LIGHT This illuminates the display panel The M AX10 has four built in amplifier channels which can be connected by means of three different operation modes BRIDGE DUAL and SEPARATE You may select the mode which best suits your...

Страница 60: ... a source appearance equipped with an earth floating function The rear and under sections of this appliance are copper plated to ensure high quality sound It may somtimes happen that marks are left during the plating process but this does not affect performance BEWARE When connecting make sure that the power switch is off and the power cord is disconnected from the power supply The terminals are a...

Страница 61: ...s 200 Watts per channel min at 6 ohms from 20 Herz to 20 000 Herz with no more than 0 2 total harmonic distortion When set to Dual mode Seaprate mode Continuous average power output is 90 Watts per channel min at 3 ohms from 20 Herz to 20 000 Herz with no more than 0 2 total harmonic distortion Signal to Noise ratio IHF short circuit A network ATT THROUGH ON INPUT 1 2 125dB Channel separation 20Hz...

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