Pioneer A-207R Service Manual Download | Manualshive

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A-307R, A-207R

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CAUTION : FOR CONT NUED PROTECTION AGA NST
RISK OF FIRE. REPLACE ONLY WITH
SAME TYPE NO. 491001 MFD, BY
LITTELFUSE INK. FOR IC454 (AEK7009).

C321–C324:

R361–R366:

Q333–Q336:

F

CN601

B

J551

TO POWER

TRANSFORMER

C451

A-307R

A-207R

ACH7048

(10000/42)

ACH7080
(6800/42)

C452

ACH7049

(10000/42)

ACH7081
(6800/42)

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Summary of Contents for A-207R

Page 1: ... SCHEMATIC DIAGRAM 6 4 PCB CONNECTION DIAGRAM 14 5 PCB PARTS LIST 22 6 ADJUSTMENT 25 CONTENTS 7 GENERAL INFORMATION 26 7 1 IC 26 7 2 DISASSEMBLY 27 7 3 BLOCK DIAGRAM 28 8 PANEL FACILITIES AND SPECIFICATIONS 29 A 307R STEREO AMPLIFIER A 207R THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL S AND TYPE S PH A P A B A P D ec Ene gy MOS AP M P M U PH BA B V UM M MAX U BA A PU AP M Type Model Power Requ...

Page 2: ...d mechanical parts in the appliance have special safety related characteristics These are often not 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 featu...

Page 3: ... a i l a t I h c n e r F s n o i t c u r t s n I g n i t a r e p O e s e u g u t r o P h s i n a p S h s i d e w S h c t u D d r a C y t n a r r a W e s a C g n i k c a P e s e n i h C s n o i t c u r t s n I g n i t a r e p O V 0 2 2 l e b a L n o i t u a C l e b a L e s a C p a C r i A d r o C r e w o P e s u F h t i w d r o C r e w o P A 5 T e s u F s n o i t c u r t s n I g n i t a r e p O e s...

Page 4: ...31 32 38 27 27 29 or 44 14 39 21 21 39 14 20 17 12 22 19 19 23 23 23 20 13 39 A 307R SAMXJ and SDXJ Types Only A 307R SAMXJ Type Only A 307R Only 42 39 40 46 39 39 7 15 39 4 43 8 15 15 15 6 39 11 17 39 24 39 26 26 39 39 39 39 36 A 307R Only A 307R SAMXJ and SDXJ Types Only A 307R Only ...

Page 5: ...2 V 0 2 2 V 7 2 1 0 2 1 V 0 1 1 C A 1 T l e n a P r a e R r e c a p S r e b b u R e t a l P g n i p m a D T s n e L D E L e t a l P e m a N l e n a P t n o r F 2 S r o t c e l e S e g a t l o V A 2 3 U F 2 U F e s u F A s n e L D E L e g d a B R E E N O I P e s a B r a e R l e b a L 3 1 1 7 X W A 9 1 1 7 X W A 5 2 0 1 K E R d e s u t o N d e s u t o N d e s u t o N 8 8 1 7 S T A d e s u t o N 3 4 ...

Page 6: ... 307R A 207R 6 A B C D 1 2 3 4 1 2 3 4 3 SCHEMATIC DIAGRAM 3 1 OVERALL CONNECTION DIAGRAM B HEADPHONE ASSY AWX7114 F FRONT R ASSY AWX7124 D AF ASSY AWX7119 A 307R AWX7117 A 207R A VOLUME ASSY AWX7118 451 ...

Page 7: ...ASSY AWX7113 MYXJ EW MYXJ GR MVXJ AWX7115 SDXJ SAMXJ ATS7188 A 307R MYXJ EW MYXJ GR ATS7190 A 207R MYXJ EW MYXJ GR and NVXJ POWER TRANSFORMER ATS7189 13 A 307R SDXJ type SAMXJ type MYXJ EW MYXJ GR types MYXJ EW MYXJ GR MVXJ types ADG1154 MYXJ EW MYXJ GR types ADG1156 MVXJ type ADG1158 SDXJ type ADG7018 SAMXJ type 15 17 S2 AKX 507 VOLTAGE SELECTOR A 307R SDXJ SAMXJ POWER TRANSFORMER AC POWER CORD ...

Page 8: ...A 307R A 207R 8 A B C D 1 2 3 4 1 2 3 4 A B D J551A B HEADPHONE ASSY AWX7114 E J3 A VOLUME ASSY AWX7118 D CN203 AUDIO SIGNAL ROUTE 3 2 VOLUME AND HEADPHONE ASSEMBLIES ...

Page 9: ... MYXJ GR MVXJ types SDXJ type SAMXJ type MYXJ EW MYXJ GR MVXJ types MYXJ EW MYXJ GR types REK1025 T2AL250V REK1025 T2AL250V S801 ASG1035 LIVE NEUTRAL TO POWER TRANSFORMER TO AC POWER CORD TO S2 VOLTAGE SELECTOR A 307R SDXJ SAMXJ NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE WITH SAME TYPE AND RATINGS ONLY CAUTION POWER ...

Page 10: ...A 307R A 207R 10 A B C D 1 2 3 4 1 2 3 4 3 4 AF ASSY D IDLE ADJ L CH DLE ADJ R CH C314 C338 C313 C337 D A CN501 AUDIO SIGNAL ROUTE AF ASSY AWX7119 A 307R AWX7117 A 207R ...

Page 11: ... PROTECTION AGA NST RISK OF FIRE REPLACE ONLY WITH SAME TYPE NO 491001 MFD BY LITTELFUSE INK FOR IC454 AEK7009 C321 C324 R361 R366 Q333 Q336 F CN601 B J551 TO POWER TRANSFORMER C451 A 307R A 207R ACH7048 10000 42 ACH7080 6800 42 C452 ACH7049 10000 42 ACH7081 6800 42 ...

Page 12: ...A 307R A 207R 12 A B C D 1 2 3 4 1 2 3 4 E FRONT L ASSY AWX7123 G OPT ASSY AWX7125 D CN202 A CN502 FRONT L ASSY S702 LOUDNESS S703 SPEAKER A S704 SPEAKER B 3 5 FRON L FRONT R AND OPT ASSEMBLIES E G F ...

Page 13: ...A 307R A 207R 13 A B C D 5 6 7 8 5 6 7 8 F F FRONT R ASSY AWX7124 FRONT R ASSY S601 INPUT SELECTOR CD TUNER PHONE LINE TAPE1 MD S602 DIRECT S603 TAPE2 MONITOR INPUT SELECTOR ...

Page 14: ...er 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 Transistor Transistor with resistor Field effect transistor Resistor array 3 terminal regulator Capacitor Connector P C Board Chip Part SIDE A SIDE B SIDE A SIDE B VOLU...

Page 15: ...PHONE AND AC PRIMARY ASSEMBLIES B C ANP7232 A HEADPHONE ASSY B J551A D ANP7232 A HEADPHONE ASSY B ANP7232 A POWER TRANSFORMER AC POWER CORD VOLTAGE SELECTOR SDXJ and SAMXJ Types AC PRIMARY ASSY C ANP7232 A AC PRIMARY ASSY C SIDE A SIDE B SIDE A SIDE B ...

Page 16: ...A 307R A 207R 16 A B C D 1 2 3 4 1 2 3 4 4 3 AF ASSY D AF ASSY D POWER TRANSFORMER ...

Page 17: ...A 307R A 207R 17 A B C D 5 6 7 8 5 6 7 8 D SIDE A F CN601 A CN501 B J551 ANP7232 A Q153 Q341 IC101 IC451 IC453 Q333 Q336 Q324 Q326 Q452 IC301 Q451 Q323 Q325 IC454 VR301 VR302 ...

Page 18: ...A 307R A 207R 18 A B C D 1 2 3 4 1 2 3 4 D AF ASSY D ...

Page 19: ...19 A B C D 5 6 7 8 5 6 7 8 D SIDE B ANP7232 A Q151 IC151 Q152 Q338 Q337 Q340 Q339 Q102 Q101 Q104 Q103 Q332 Q328 Q327 Q318 Q330 Q322 Q320 Q316 Q314 Q312 Q310 Q304 Q303 Q311 Q309 Q315 Q313 Q321 Q319 Q317 Q329 Q331 Q343 ...

Page 20: ...A 307R A 207R 20 A B C D 1 2 3 4 1 2 3 4 4 4 FRONT L ASSY E ANP7231 A FRONT L ASSY E Q702 Q703 Q704 Q705 Q708 Q707 VR751 VR752 Q701 IC751 ANP7231 A J602 F CN502 A J603A G FRONT L ASSY E SIDE A SIDE B ...

Page 21: ...3 4 1 2 3 4 4 5 FRONT R AND OPT ASSEMBLIES G F ANP7231 A OPT ASSY G J603 E ANP7231 A OPT ASSY G FRONT R ASSY F ANP7231 A CN202 D J602A E IC601 VR601 FRONT R ASSY F ANP7231 A Q601 Q606 Q614 Q616 Q608 Q613 SIDE A SIDE B SIDE A SIDE B ...

Page 22: ...1 7 X W A 5 2 1 7 X W A 9 5 3 7 M W A 8 1 1 7 X W A 4 1 1 7 X W A 5 1 1 7 X W A 9 1 1 7 X W A 3 1 0 7 G W A 3 2 1 7 X W A 4 2 1 7 X W A 5 2 1 7 X W A 9 5 3 7 M W A 8 1 1 7 X W A 4 1 1 7 X W A 5 1 1 7 X W A 9 1 1 7 X W A 3 1 0 7 G W A 3 2 1 7 X W A 4 2 1 7 X W A 5 2 1 7 X W A 7 5 3 7 M W A 8 1 1 7 X W A 4 1 1 7 X W A 3 1 1 7 X W A 7 1 1 7 X W A 3 1 0 7 G W A 3 2 1 7 X W A 4 2 1 7 X W A 5 2 1 7 X W ...

Page 23: ...C101 C110 CCSQCH470J50 C334 CEANP100M16 C471 CEANP1R0M2A C172 CEANP1R0M50 C333 CEANP470M10 C155 C156 C167 C168 CEAT100M50 C317 C320 C335 C336 CEAT100M50 C453 C458 C465 C466 C469 CEAT100M50 C461 C462 CEAT101M2A C467 C468 CEAT1R0M50 C470 CEAT3R3M50 C169 C170 CEAT470M25 C459 C460 C463 C464 CEAT470M50 C157 C158 CEAT471M6R3 C301 C302 C305 C306 CEBA100M50 C307 C308 CEBA221M25 C321 C324 CFTYA224J50 C173 ...

Page 24: ...C757 C758 CFTYA153J50 C701 CKSQYF104Z25 RESISTORS R751 R752 RS1 10S101J VR751 VR752 30kΩ ACS7028 Other Resistors RS1 10S J OTHERS 3P CABLE HOLDER 51063 0305 7P CABLE HOLDER 51063 0705 13P CABLE HOLDER 51063 1305 J603 JUMPER WIRE D15A03 100 2651 J3 JUMPER WIRE D15A07 200 2651 FRONT R ASSY SEMICONDUCTORS IC601 PD5443A Q609 2SA1162 Q610 2SC2712 Q611 Q613 Q615 Q616 DTA124EK Q601 Q606 Q608 Q614 DTC124E...

Page 25: ...hown in Fig 6 1 R373 or R374 2 Turn the POWER switch to ON 3 Adjust VR301 VR302 so that the voltage between both sides of R373 R374 becomes 10mV 1mV 4 Ages for 5 minutes 5 Adjust VR301 VR302 so that the voltage between both sides of R373 R374 becomes 11mV 1mV VR301 VR302 R375 R376 R373 R374 Heat Sink CN202 AF ASSY DC Voltmeter DC Voltmeter SIDE A Heat Sink Heat Sink Heat Sink Fig 6 1 Adjustment Me...

Page 26: ...ATOR 11 P26 IN6 O SPEAKER B INDICATOR 12 P25 IN5 O LOUDNESS INDICATOR 13 P24 IN4 O Not used 14 P23 IN3 O Not used 15 P22 IN2 O DIRECT INDICATOR 16 P21 IN1 O TAPE2 INDICATOR 17 P20 IN0 O FUNCTION switch MUTE 18 VREF I Pulls up to 5V 19 XIN I 4 19MHz 20 XOUT O Ceramic vibrating and connecting terminal 21 VSS Digatal GND 22 VCC Power supply 5V 23 P50 XCIN I SPEAKER B KEY input 7 GENERAL INFORMATION 7...

Page 27: ... 5 3 2 8 7 7 7 9 Screw for Rear Panel Rear Panel Rear Panel Front Panel Diagnose the AF Assy Chassis Chassis 6 6 6 Cutting Pliers PCB Support 3 Unhook lead wires 1 3 2 For Service 10 13 11 12 Be careful not to injure the Front Panel 7 2 DISASSEMBLY ...

Page 28: ...19 15 TO POWER STAGE TO FUNCTION SW DIRECT LOUDNESS ON OFF VOLUME UP DOWN FUNC MUTE ON OFF TO PROTECTION RY SR INPUT FROM FUNCTION SEL KEY INPUTS µ COM FROM UNUSUAL OUTPUT DETECTION TO VOLTAGE STAGE TO µ COM TO OP AMP RY LED 6 BH D IC101 D IC601 F Q507 A Q509 A Q303 RY401 RY402 RY403 D D451 D 401 D JA501 B S801 C FU1 T1 C D454 D455 IC453 IC451 IC452 D D D D IC751 VR751 VR752 E VR601 F Q505 A IC151...

Page 29: ...k is for output of control signals when operating other components bearing the Î mark with the attached remote control unit AC INLET jack Connect power cord to here and an AC wall socket or the AC outlet of an audio timer If you are going to be away from home for a long period of time disconnect the unit from the wall socket NOTES If you use an other power cord than provided we cannot assume the l...

Page 30: ... or cassette deck connected to the TAPE 2 MONITOR terminals On Indicator lights when using the adaptor component or listening to the cassette deck Off Indicator goes off when not in use NOTES When no connections are made to the TAPE 2 MONITOR terminals or when they are not in use be sure to set this switch to the off position No sound will be heard if it is set to the on position When the TAPE 2 M...

Page 31: ...he left high frequency tones are de emphasized NOTE This control does not operate when the DIRECT button is in the on position 0 BASS tone control Use to adjust the low frequency tone The center position is the flat normal position When turned to the right low frequency tones are emphasized when turned to the left low frequency tones are de emphasized NOTE This control does not operate when the DI...

Page 32: ...ls TAPE 2 For playback with a cassette deck or adaptor connected to TAPE 2 MONITOR terminals LINE For playback with a component connected to the LINE terminal 7 TUNER POWER button Switches TUNER power STANDBY ON 8 TAPE POWER button Switches the cassette deck power STANDBY ON Can not turn ON OFF some cassette decks 9 TAPE operation buttons 2 3 Playback in the direction of the arrows 7 Stop 1 Tape f...

Page 33: ... 5 dB CD TUNER LINE TAPE 1 MD TAPE 2 MONITOR 5 Hz to 100 kHz 0 3 dB Tone control BASS 8 dB 100 Hz TREBLE 8 dB 10 kHz Loudness contour volume control set at 30 dB position 6 dB 100 Hz 4 dB 10 kHz Signal to Noise ratio IHF short circuit A network PHONO MM 5 mV input 85 dB CD TUNER LINE TAPE 1 MD TAPE 2 MONITOR 106 dB Signal to Noise ratio DIN continuous power 50 mW PHONO MM 71 dB 67 dB CD TUNER LINE...

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