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Pioneer XR-A660 Service Manual

Stereo cd cassette deck receiver
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STEREO CD CASSETTE DECK RECEIVER
XR-A660
XR-A550
XR-A330
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
XR-A660
DBDXJ
DLXJ/NC
DXJ/NC
DXJ
-
CONTENTS
1. SAFETY INFORMATION ...................................... 2
3. SCHEMATIC DIAGRAM ..................................... 16
4. PCB CONNECTION DIAGRAM .......................... 32
5. PCB PARTS LIST ............................................... 44
6. ADJUSTMENT .................................................... 52
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Wheelock Place, Singapore 238880
PIONEER ELECTRONIC CORPORATION 1998
Model
XR-A550
XR-A330
-
AC110-127V/220-230V/240V
-
AC110-127V/220-230V/240V
-
AC110-127V/220-230V/240V
-
AC110-127V/220-230V/240V
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
XR-A660
The Voltage can be converted by
Power Requirement
the following method.
With the voltage selector
With the voltage selector
With the voltage selector
With the voltage selector
7. GENERAL INFORMATION ............................... 61
7.1 PARTS ......................................................... 61
7.1.1 IC ......................................................... 61
7.1.2 DISPLAY .............................................. 68
7.2 DISASSEMBLY ........................................... 72
7.3 BLOCK DIAGRAM ....................................... 76
ORDER NO.
RRV2006
T - IZK AUG. 1998 Printed in Japan

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  • Page 1: Table Of Contents

    PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Wheelock Place, Singapore 238880 PIONEER ELECTRONIC CORPORATION 1998...

  • Page 2: Safety Information

    XR-A660, XR-A550, XR-A330 1. SAFETY INFORMATION 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.

  • Page 3: Exploded Views And Parts List

    (0.03 × 230 × 340) Door Spacer XHG3002 Front Pad XHA3003 (2) CONTRAST TABLE XR-A660/DBDXJ, DLXJ/NC, DXJ/NC, XR-A550/DXJ, XR-A330/DBDXJ, DLXJ/NC and DXJ/NC are constructed the same except for the following : s i l s i l s i l l l e...
  • Page 4 XR-A660, XR-A550, XR-A330 2.2 EXTERIOR (1/2) Note : Hook Tray cap on top of loading tray and then insert the bottom three hooks. Note : Attatch on the same numbers × three. XR-A550, XR-A330 only Refer to "2.5 $M MECHANISM CD".
  • Page 5 Cord Clamper See Contrast table (2) Cord Stopper See Contrast table (2) Push Rivet See Contrast table (2) Cushion Rubber XEB3002 (2) CONTRAST TABLE XR-A660/DBDXJ, DLXJ/NC, DXJ/NC, XR-A550/DXJ, XR-A330/DBDXJ, DLXJ/NC and DXJ/NC are constructed the same except for the following :...

  • Page 6: Xr-A330

    XR-A660, XR-A550, XR-A330 2.3 EXTERIOR (2/2) DLXJ/NC Type only XR-A660, XR-A550 only XR-A550, XR-A330 only XR-A660, XR-A550 only 28 27 Except DLXJ/NC Type XR-A550, XR-A330 only XR-A660 only Refer to "2.4 FRONT PANEL SECTION".
  • Page 7 See Contrast table (2) Fuse Card See Contrast table (2) Locking Spacer See Contrast table (2) Card Spacer See Contrast table (2) (2) CONTRAST TABLE XR-A660/DBDXJ, DLXJ/NC, DXJ/NC, XR-A550/DXJ, XR-A330/DBDXJ, DLXJ/NC and DXJ/NC are constructed the same except for the following :...

  • Page 8: Xr-A550

    XR-A660, XR-A550, XR-A330 2.4 FRONT PANEL SECTION XR-A550, XR-A660 only XR-A330 only XR-A660 only XR-A550, XR-A330 only 34(1/2) XR-A660 only 34(2/2) XR-A550, XR-A330 only XR-A660 only XR-A550, XR-A330 only Refer to "2.7 and 2.8 MECHANISM UNIT".
  • Page 9 See Contrast table (2) Latch Mold L XMR3001 Binder See Contrast table (2) Latch Mold R XMR3002 GND Plate B XNG3005 (2) CONTRAST TABLE XR-A660/DBDXJ, DLXJ/NC, DXJ/NC, XR-A550/DXJ, XR-A330/DBDXJ, DLXJ/NC and DXJ/NC are constructed the same except for the following :...
  • Page 10 XR-A660, XR-A550, XR-A330 2.5 $M MECHANISM CD Refer to "2.6 SERVO MECHANISM ASSY".
  • Page 11 XR-A660, XR-A550, XR-A330 2.6 SERVO MECHANISM ASSY • $M MECHANISM CD PARTS LIST Mark No. Description Part No. MOTOR Assy AWZ8428 SW Assy AWZ8429 CD Assy AWZ3050 • • • • • Servo Spring ABH7126 Belt AEB7072 Clamp Magnet AMF7001...
  • Page 12 XR-A660, XR-A550, XR-A330 2.7 MECHANISM UNIT (XR-A660) Mech. Ι Mech. Ι Only Only Mech. ΙΙ Only Mech. Ι Mech. ΙΙ Mech. Ι Mech. Ι Only Mech. ΙΙ...
  • Page 13 XR-A660, XR-A550, XR-A330 • MECHANISM UNIT PARTS LIST Mark No. Description Part No. Plate HD BLK (Mech. Ι) F513-811 Plate HD BLK (Mech. ΙΙ) F513-819 Motor Main BLK (Mech. Ι only) F525-324 • • • • • PCB Control BLK (Mech. Ι only) F567-621...
  • Page 14 XR-A660, XR-A550, XR-A330 2.8 MECHANISM UNIT (XR-A550 and XR-A330) Mech. Ι Only Mech. Ι Only Mech. ΙΙ Only Mech. Ι Mech. ΙΙ Mech. Ι Mech. Ι Only Mech. Ι Only Mech. Ι Only Mech. ΙΙ...
  • Page 15 XR-A660, XR-A550, XR-A330 • MECHANISM UNIT PARTS LIST Mark No. Description Part No. Plate HD BLK (Mech. Ι) F513-811 Plate HD BLK (Mech. ΙΙ) F513-825 Motor Main BLK (Mech. Ι only) F525-324 • • • • • PCB Control BLK (Mech. Ι only) F567-622...

  • Page 16: Schematic Diagram

    XR-A660, XR-A550, XR-A330 3. SCHEMATIC DIAGRAM 3.1 OVERALL WIRING DIAGRAM CD SW LED ASSY (XWZ3086) XR-A660 ONLY FM/AM TUNER MODULE (AXQ7065) CN6201 1/3, 2/3, AF ASSY (XR-A660 : XWZ3083) (XR-A550 : XWZ3074) (XR-A330 : XWZ3045) CD ASSY (XWZ3050) CARRIAGE MOTOR...
  • Page 17 XR-A660, XR-A550, XR-A330 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". DISPLAY ASSY (XR-A660 : XWZ3085) (XR-A550, XR-A330 : XWZ3047) XR-A660 ONLY XR-A660 ONLY AEK7071 XR-A660 ONLY SECONDARY...
  • Page 18 XR-A660, XR-A550, XR-A330 3.2 FM/AM TUNER MODULE MIX AMP RF AMP 1T378A BUFFER IF AMP FM +B SW MW RF TUNING BLOCK AKX7041 FM/AM TUNER MODULE (AXQ7065)
  • Page 19 XR-A660, XR-A550, XR-A330 AF AMP AF AMP REGULATOR...
  • Page 20 XR-A660, XR-A550, XR-A330 3.3 CD, MOTOR and SW ASSEMBLIES CD ASSY (XWZ3050) MOTOR ASSY (AWZ8428) CARRIAGE MOTOR J8502 D20PWW0405E SERVO MECHANISM ASSY AXA7039...
  • Page 21 XR-A660, XR-A550, XR-A330 Note: The encircled numbers denote measuring point in the schematic diagram. CN8005- Pin 1 : PLAY MODE (RF) H : 500nsec/div 1.8Vp-p VREF CN8005- Pin 2 : TEST MODE, Tracking Open(TRER) H : 5msec/div C8308 1000p 1.0Vp-p...
  • Page 22 XR-A660, XR-A550, XR-A330 3.4 AF ASSY (1/3) AF ASSY (XR-A660 : XWZ3083) (XR-A550 : XWZ3074) XR-A550,A330 (XR-A330 : XWZ3045) ONLY XR-A660 ONLY XR-A660 ONLY C2335 27p 22k(XR-A660) 39k(XR-A550,A330) XR-A550,A330 ONLY XR-A660 ONLY XR-A550,A330 ONLY C2336 27p : DECK PB SIGNAL ROUTE...
  • Page 23 XR-A660, XR-A550, XR-A330 XR-A550,A330 ONLY XR-A550,A330 ONLY XR-A550,A330 ONLY XR-A550,A330 XR-A550,A330 ONLY ONLY 22k(XR-A660) 0(XR-A550,A330) 22k(XR-A660) 0(XR-A550,A330) XR-A550,A330 ONLY XR-A550,A330 XR-A660 ONLY ONLY XR-A660 ONLY...
  • Page 24 XR-A660, XR-A550, XR-A330 3.5 AF ASSY (2/3) CN8004 : AUDIO SIGNAL ROUTE : CD AUDIO SIGNAL ROUTE : TUNER AUDIO SIGNAL ROUTE : DECK PB SIGNAL ROUTE 6.8k(XR-A660,A550) : DECK REC SIGNAL ROUTE 0k(XR-A330) 6.8k(XR-A660,A550) 3.9k(XR-A330) 2.2/50(XR-A660,A550) 0.47/50(XR-A330) 6.8k(XR-A660,A550) 0k(XR-A330) 6.8k(XR-A660,A550)
  • Page 25 XR-A660, XR-A550, XR-A330 CN6201 AF ASSY (XR-A660 : XWZ3083) (XR-A550 : XWZ3074) (XR-A330 : XWZ3045) XR-A660 ONLY XR-A660 ONLY...
  • Page 26 XR-A660, XR-A550, XR-A330 3.6 AF (3/3) and SECONDARY ASSEMBLIES IC3301 STK407-070B(XR-A660,A550) STK407-050B(XR-A330)
  • Page 27 TYPE NO. 4911.25 MFD, BY LITTELFUSE INK. TYPE NO. 491005 MFD, BY LITTELFUSE INK. (XR-A660 : XWZ3083) FOR IC71 (AEK7010). FOR IC21 AND IC22 (AEK7046: XR-A660). CAUTION : FOR CONTINUED PROTECTION AGAINST CAUTION : FOR CONTINUED PROTECTION AGAINST (XR-A550 : XWZ3074) RISK OF FIRE.
  • Page 28 XR-A660, XR-A550, XR-A330 3.7 PRIMARY and SUB TRANS ASSEMBLIES PRIMARY ASSY (XWZ3048) XR-A660, XR-A550 : AEK1057 (T2A) XR-A330 : AEK1056 (T1.6A) SUB TRANS ASSY (XWZ3049)
  • Page 29 XR-A660, XR-A550, XR-A330 10000pF/AC250V XR-A660, XR-A550 : AEK1060 (T4A) XR-A330 : AEK1059 (T3.15A)
  • Page 30 XR-A660, XR-A550, XR-A330 3.8 DISPLAY and CD SW LED ASSEMBLIES DISPLAY ASSY DISPLAY ASSY (XR-A660 : XWZ3085) S5911 : DISPLAY S5926 : DOLBY NR ON/OFF S5912 : TIMER S5927 : ASES/COPY (XR-A550,XR-A330 : XWZ3047) S5913 : ENTER S5928 : AUX S5929 : TAPE Ι/ΙΙ...
  • Page 31 XR-A660, XR-A550, XR-A330 2/3 CN5101 CN5501 52045-3845 SLP9118C51H(XR-A660) SLP7118C51H(XR-A550,A330) XR-A660 ONLY XR-A660 ONLY XR-A660 XR-A660 ONLY ONLY 1SS183 XR-A550, XR-A660 ONLY A330 ONLY XR-A550, XR-A330 ONLY 1SS181 1SS181 S5937 : OPEN/CLOSE S5938 : DISC CHANGE S5939 : DISC 3 SELECT...

  • Page 32: Pcb Connection Diagram

    XR-A660, XR-A550, XR-A330 4. PCB CONNECTION DIAGRAM NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic 3. The parts mounted on this PCB include all necessary parts for diagrams. several destinations. 2. A comparison between the main parts of PCB and schematic For further information for respective destinations, be sure to diagrams is shown below.
  • Page 33 XR-A660, XR-A550, XR-A330 4.1 FM/AM TUNER MODULE SIDE A CN3051 FM/AM TUNER MODULE VR6201 Q6204 Q6203 SIDE B FM/AM TUNER MODULE IC6201 Q6201 Q6202 Q6301 Q6303 Q6302 Q6304 Q6401 IC6202 Q6214 Q6403 Q6306 Q6402 Q6404 Q6205 (ANP7159-B)
  • Page 34 XR-A660, XR-A550, XR-A330 4.2 CD, MOTOR and SW ASSEMBLIES SW ASSY MOTOR LOADING ASSY MOTOR SERVO MECHANISM ASSY Q8101 PICKUP ASSY Q8254 Q8252 Q8251 Q8253 CN1051 SIDE A (ANP7144-E) CD ASSY...
  • Page 35 XR-A660, XR-A550, XR-A330 SW ASSY MOTOR ASSY IC8201 IC8101 IC8301 SIDE B (ANP7144-E) CD ASSY...
  • Page 36 XR-A660, XR-A550, XR-A330 4.3 AF ASSY MECHANISM CN6201 UNIT AF ASSY VR2302 VR230 VR2802 VR280 SIDE A Q3081 Q2803 Q2804 Q2801 IC32 IC51 IC42 Q3352 Q3351...
  • Page 37 XR-A660, XR-A550, XR-A330 CN8004 CN5501 MECHANISM UNIT MECHANISM UNIT (XNP3008-C) VR2302 VR2301 VR2303 VR2306 VR2802 VR2801 IC2301 IC3301...
  • Page 38 XR-A660, XR-A550, XR-A330 AF ASSY (XNP3008-C) IC5891 IC2101 IC5892 Q3605 Q3608 Q2301 Q2204 Q2203 Q2 Q2802 Q2306 Q2105 Q3601 Q3603 Q2302 IC2201 SIDE B IC3301 Q3314 Q3313 Q3312 Q331...
  • Page 39 XR-A660, XR-A550, XR-A330 IC2101 Q2201 Q2202 Q5751 Q5752 IC5691 IC3001 Q2204 Q2203 Q2103 IC5751 IC3951 IC3101 IC3103 IC2201 Q3353 Q3354 Q2805 Q2807 Q3101 Q3102 Q3312 Q3311 Q3351 Q3352 IC42 IC51 IC32...
  • Page 40 XR-A660, XR-A550, XR-A330 4.4 SECONDARY and PRIMARY ASSEMBLIES SECONDARY ASSY IC71 IC11 IC31 IC12 IC41 IC21 IC22 (XNP3008-C) POWER TRANSFORMER (T1) (XNP3012-B) PRIMARY ASSY SIDE A...
  • Page 41 XR-A660, XR-A550, XR-A330 4.5 SUB TRANS ASSY SUB TRANS ASSY CN81 AC IN LIVE NEUTRAL (XNP3012-B) SIDE A...
  • Page 42 XR-A660, XR-A550, XR-A330 4.6 DISPLAY and CD SW LED ASSEMBLIES DISPLAY ASSY CN5101 MECHANISM UNIT CD SW LED ASSY (XNP3012-B) SIDE A...
  • Page 43 XR-A660, XR-A550, XR-A330 DISPLAY ASSY Q2903 Q2901 Q2906 Q2908 Q2907 Q5605 IC5601 Q2904 IC5501 Q2910 Q2911 Q5801 Q5502 Q5501 Q5821 IC5631 CD SW LED ASSY Q5606 Q5601 Q5604 IC3901 (XNP3012-B) SIDE B IC3931...

  • Page 44: Pcb Parts List

    XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. 5. PCB PARTS LIST • Parts marked by "NSP" and can not be supplied. NOTES: • mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 45 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. C6413 CCSQRH180J50 CAPACITORS C6414 CCSQRH8R0D50 C8145,C8352,C8354,C8356,C8358 CCSQCH101J50 C6405 CCSQTH150J50 C8361,C8362 CCSQCH101J50 C6234,C6235 CEAL1R0M50 C8132,C8310,C8311 CCSQCH150J50 C6245 CEAL470M16 C8131 CCSQCH300J50 C8129 CCSQCK1R0C50 C6224 CEAT100M50 C6243 CEAT101M16 C8142 CEAL101M6R3...
  • Page 46 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. RELAY SW ASSY RY3601 ASR7008 SWITCHES CAPACITORS S8502 ASG7009 S8501 DSG1017 C2303,C2304 (270pF) ACG7024 C2301,C2302 CCSQCH100D50 C3047,C3048 CCSQCH101J50 OTHERS C2192 CCSQCH220J50 J8501 JUMPER WIRE 6P D20PWY0610E C3319,C3320...
  • Page 47 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. D3359,D3360 MTZJ18B RESISTORS MTZJ33C R2812 RD1/2LMF270J D3363,D3364 MTZJ39C R2809 RD1/2LMF4R7J D2001 MTZJ6.2A RD1/2PM562J MTZJ6.8C R3333,R3334 RD1/4LMF100J R3353,R3354 RD1/4PU101J MTZJ8.2B S5688G RD1/4PU103J S5688G R3081 RD1/4PU221J R3317,R3318 RD1/4PU683J COILS...
  • Page 48 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. D3359,D3360 MTZJ18B RESISTORS MTZJ33C R2812 RD1/2LMF270J D3363,D3364 MTZJ39C R2809 RD1/2LMF4R7J D2001 MTZJ6.2A RD1/2PM562J MTZJ6.8C R3333,R3334 RD1/4LMF100J R3353,R3354 RD1/4PU101J MTZJ8.2B S5688G RD1/4PU103J S5688G R3081 RD1/4PU221J R3317,R3318 RD1/4PU683J COILS...
  • Page 49 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. RESISTORS PRIMARY ASSY RD1/2PM222J R2812 RD1/2LMF270J SWITCH R2809 RD1/2LMF4R7J AKX7006 R3333,R3334 RD1/4LMF100J R3353,R3354 RD1/4PU101J CAPACITOR RD1/4PU103J C3 (10000pF/AC250V) ACG7020 R3081 RD1/4PU221J R3317,R3318 RD1/4PU683J OTHERS R3991,R3992 RS2LMF331J H3-H6...
  • Page 50 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. D5608-D5611 MBG5064X DISPLAY ASSY (XWZ3047) D5613-D5616 MPG5064X D5617-D5620 SLP3118C51H SEMICONDUCTORS D5603-D5607,D5621 SLP9118C51H IC5501 PDC048A Q5501 2SA1037K COIL Q2903,Q2906,Q2908 2SB1132 L5811 LAU220J Q5604,Q5801 2SC2412K Q2910,Q2911 DTA124EK SWITCHES Q5606...
  • Page 51 XR-A660, XR-A550, XR-A330 Mark No. Description Part No. Mark No. Description Part No. OTHERS X5501 CERAMIC RESONATOR RSS1050 (6MHz) CN2901 17P FFC CONNECTOR 52045-1745 CN5501 38P FFC CONNECTOR 52045-3845 X5901 GP1U28X REMOTE RECEIVER UNIT 5631 FL HOLDER VNF1096 V5621 FL TUBE...

  • Page 52: Adjustment

    XR-A660, XR-A550, XR-A330 6. ADJUSTMENT 6.1 TUNER SECTION FM Tuner Section • Set the mode selector to FM BAND. • Connect the wiring as shown in Fig. 1. ± d ( µ ) V v i t y t i 1 ±...
  • Page 53 XR-A660, XR-A550, XR-A330 6.2 CASSETTE DECK SECTION 6.2.1 For XR-A660 • Adjustment points and test points are shown in Fig.3, Fig.5 and Fig.7. Mechanical Adjustment • Test tape: NCT-111 (3kHz, 30min). 1. Tape Speed Adjustment ± r i f &...
  • Page 54 XR-A660, XR-A550, XR-A330 0 dB 0 dB: 315 Hz, 250 nwb/m 10s ......................10s 315Hz –20 dB 12.5 10kHz 8kHz 6.3kHz 10kHz 315Hz 14kHz 4kHz 2kHz 1kHz 63Hz 40Hz Fig. 4 STD-331E Test Tape Playback Adjustment (1) Head Azimuth Adjustment •...
  • Page 55 XR-A660, XR-A550, XR-A330 Recording Adjustment (1) Bias Oscillation Frequency Adjustment                       l l i e l i l l i ±...
  • Page 56 XR-A660, XR-A550, XR-A330 AF ASSY SIDE A FRONT TAPE TEST POINT L ch R ch VR2303 VR2305 VR2302 VR2301 VR2304 VR2306 L2801 VR2802 VR2801 Fig.7 Adjustment and Measurement Points...
  • Page 57 XR-A660, XR-A550, XR-A330 6.2.2 For XR-A550 and XR-A330 • Adjustment points and test points are shown in Fig.8, Fig.10 and Fig.11. Mechanical Adjustment • Test tape: NCT-111 (3kHz, 30min). 1. Tape Speed Adjustment ± r i f & r i f ±...
  • Page 58 XR-A660, XR-A550, XR-A330 REV Azimuth Adjustment Screw FWD Azimuth Adjustment Screw Fig. 10 Head Azimuth Adjustment Screw Playback Adjustment (1) Head Azimuth Adjustment • Do not switch between forward and reverse operation with the screwdriver inserted. c i l Recording Adjustment (1) Bias Oscillation Frequency Adjustment ...
  • Page 59 XR-A660, XR-A550, XR-A330 SIDE B AF ASSY FRONT TAPE TEST POINT R ch L ch (VR is nothing) L2801 VR2301 VR2302 BIAS TP POINT VR2802 Fig.11 Adjustment and Measurement Points...

  • Page 60: Test Mode

    XR-A660, XR-A550, XR-A330 6.3 TEST MODE NOTE: There is no information to be shown in this CD adjustment. How to Start/Cancel Test Mode TEST MODE : ON TEST DISC: YEDS-7 CD TEST Short Point Function CD STANDBY/ON CD TEST "TEST 4"...

  • Page 61: General Information

    XR-A660, XR-A550, XR-A330 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. HA12136AF (AF ASSY : IC2201) • Dolby B Type NR System IC •...
  • Page 62 XR-A660, XR-A550, XR-A330 • Pin Function z i l LC75394NED (AF ASSY : IC3001) • Electrical Volume IC • Pin Function t i c t i c t i c t i c t i c t i c t i c...
  • Page 63 XR-A660, XR-A550, XR-A330 • Block Diagram LF4C3 RF4C3 LF4C2 RF4C2 LF4C1 RF4C1 LF3C3 RF3C3 LF3C2 RF3C2 LF3C1 RF3C1 LATCH LF2C3 RF2C3 LF2C2 RF2C2 LF2C1 RF2C1 DECODER LF1C3 RF1C3 LF1C2 RF1C2 LF1C1 RF1C1 SHIFT REGISTER LTIN RTIN LSELO RSELO LINVIN1 RINVIN1...
  • Page 64 XR-A660, XR-A550, XR-A330 STK407-070B (AF ASSY : IC3301)(XR-A660 and XR-A550) STK407-050B (AF ASSY : IC3301)(XR-A330) • Audio IC • Block Diagram TR21 TR14 TR13 TR18 TR11 TR23 TR16 TR15 TR20 TR10 TR22 TR12 TR24 TR17 TR19...
  • Page 65 XR-A660, XR-A550, XR-A330 PDC048A (DISPLAY ASSY : IC5501) • System Control Microcomputer • Pin Function – – – – – – – l a i – l a i l a i l a i...

  • Page 66: Block Diagram

    XR-A660, XR-A550, XR-A330 LC78622NE (CD ASSY : IC8301) • CD DSP IC • Block Diagram 64 11 32 33 62 23 8 DEFI VCO clock Slice level 2k × 8-bits RAM address control oscillator EFMIN generator clock control Interpolation Sync...
  • Page 67 XR-A660, XR-A550, XR-A330 − i g i e l l l a i l l u t s i l i u i - t y f i − − − − − l l i l l i −...

  • Page 68: Display

    XR-A660, XR-A550, XR-A330 7.1.2 DISPLAY 7 XAV3004 (DISPLAY ASSY : V5621)(XR-A660) • FL Display • Pin Assignment • Grid Assignment (2G) (2G to 9G) (7G) (9G) (9G) (16G to 10G)
  • Page 69 XR-A660, XR-A550, XR-A330 • Pin Connection Pin No. Connection F2 Pin No. Connection P7 NOTE 1) F1, F2... Filament 2) NP....No pin 3) DL....Datum Line 4) 1G to 16G..Grid • Anode Connection 3G to 6G 10G to 16G –...
  • Page 70 XR-A660, XR-A550, XR-A330 7 XAV3003 (DISPLAY ASSY : V5621) (XR-A550 and XR-A330) • FL Display • Pin Assignment • Grid Assignment (10G) (14G) (2G to 9G) • Pin Connection Pin No. Connection F2 Pin No. Connection P7 NOTE 1) F1, F2..Filament 2) NP....
  • Page 71 XR-A660, XR-A550, XR-A330 • Anode Connection 2G 3G to 6G 10G 11G 13G 14G B10 R10 B11 R11 B12 R12 – – – – – – – – – – – – – – – – – – – –...

  • Page 72: Disassembly

    XR-A660, XR-A550, XR-A330 7.2 DISASSEMBLY $M MECHANISM CD × 3 Bonnet Case × 2 × 2 × 2 × 2 × 2 Tray Cap Main Cam × 3 Note: The loading tray can be pulled out Unhook when the main cam is in this position.

  • Page 73: Front Panel

    XR-A660, XR-A550, XR-A330 FRONT PANEL Unhook Unhook CD SW LED Assy FM/AM TUNER MODULE (XR-A660 only) AF Assy Front Panel DISPLAY Assy SUB TRANS Assy PRIMARY Assy SECONDARY Assy $M MECHANISM CD ADDITIONAL TO JOB Mechanism Base (Bottom View) Front Side...
  • Page 74 XR-A660, XR-A550, XR-A330 Clamper Holder Servo Base Servo Mechanism Assy Hook Clamper Holder Hook Servo Base Hook $M Mechanism CD Actuater Actuater Hook FITTING THE PULLEY INTO THE CARRIAGE MOTOR For replacement of the carriage motor, fit the motor pulley by using the servicing...
  • Page 75 XR-A660, XA-A550, XA-A330...

  • Page 76: Block Diagram

    XR-A660, XR-A550, XR-A330 7.3 BLOCK DIAGRAM DUMMY TUNER IC3001 ZOOM BASS MODULE SURROUND BLASTER LC75394 (-2dB) FUNCTION $ MECH (-8dB) (200mV) (-8dB) TONE BUSS (3 BAND) TAPE DECK (-3.8dB) (+2dB) (-6dB) To R ch From R ch BASS BLASTER XR-A660 ONLY...
  • Page 77 XR-A660, XA-A550, XA-A330 IC3301 POWER AMP FRONT TOTAL GAIN +29dB MAIN VOL. STK407-050 (+42dB) HEAD PHONE CN3901 XR-A660 ONLY TAPE IC2301 IC2201 DECK REC IN TAPE DECK VR2301 HA12136AF HA12211NT DOLBY NR F2201 Vref Vref Vref Vref...

  • Page 78: Panel Facilities And Specifications

    XR-A660, XR-A550, XR-A330 8. PANEL FACILITIES AND SPECIFICATIONS • PANEL FACILITIES 7 XR-A330, XR-A550 A330 ¡ £ ¢ ™ ∞ § $ % ^ * & ¶•ªº DISC-1 select button & indicator PLAY/PAUSE, MEMORY button DISC-2 select button & indicator REC/STOP button &...

  • Page 79: Xr-A660

    XR-A660, XR-A550, XR-A330 7 XR-A660 4 5 6 7 8 ¤ 1 2 3 ™ £ § ∞ ¶ ¢ • ª ^ & * ) ( ¡ º Ÿ ⁄ ≠ – DISC-1 indicator ASES/COPY button DISC-2 indicator TAPE...
  • Page 80 XR-A660, XR-A550, XR-A330 7 For models XR-A330 and XR-A550 7 8 9 0 7 For models XR-A660 Display section Indicates audio level. Lights when the selected function is CD. Lights when the selected function is TAPE. Indicates CD and TAPE play status.
  • Page 81 XR-A660, XR-A550, XR-A330 DISC Function button section CD function button TUNER/BAND function button Remote control unit TAPE function button VOLUME 5 (up), ∞ (down) buttons AUX function button SLEEP timer button TUNING [1, 4 (–), (+) ¢, ¡] buttons MONO button...

  • Page 82: Fm Antenna

    ......... 70 W + 70 W (1 kHz, T.H.D. 10%, 6 Ω) Dimensions Peak Music Power Output ..........1,400 W XR-A330, XR-A550, XR-A660 ..270 (W) x 300 (H) x 336 (D) mm Weight (without package) <XR-A550, XR-A660> XR-A330 ................7.6 kg [FRONT] XR-A550, XR-A660 ..............

This manual is also suitable for:

Xr-a550Xr-a330

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