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Pioneer XR-A880/KUCXJ Service Manual
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Pioneer XR-A880/KUCXJ Service Manual

Stereo cd cassette deck receiver
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STEREO CD CASSETTE DECK RECEIVER
XR-A880
XR-A770
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
XR-A880
KUCXJ
YPWXJ
CONTENTS
1. SAFETY INFORMATION ...................................... 2
3. SCHEMATIC DIAGRAM ..................................... 16
4. PCB CONNECTION DIAGRAM .......................... 34
5. PCB PARTS LIST ............................................... 49
6. ADJUSTMENT .................................................... 57
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. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER ELECTRONIC CORPORATION 1998
Power Requirement
XR-A770
AC120V
AC240V
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
• XR-A880
7. GENERAL INFORMATION ............................... 63
7.1 PARTS ......................................................... 63
7.1.1 IC ......................................................... 63
7.1.2 DISPLAY .............................................. 69
7.2 DISASSEMBLY ........................................... 71
7.3 BLOCK DIAGRAM ....................................... 74
ORDER NO.
RRV2065
Remarks
T - ZZK DEC. 1998 Printed in Japan

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Summary of Contents for Pioneer XR-A880/KUCXJ

  • Page 1: Table Of Contents

    PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan 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. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER ELECTRONIC CORPORATION 1998 T –...

  • Page 2: Safety Information

    , a l w a y s c o n s u l t t h e c u r r e n t P I O N E E R Service Manual. A subscription to, or additional copies Also test with plug reversed of, PIONEER Service Manual may be obtained at a (Using AC adapter Earth nominal charge from PIONEER.
  • Page 3 XR-A880, XR-A770 LABEL CHECK (for YPWXJ type) IMPORTANT THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1. SERVICING OPERATION OF THE APPARATUS S H O U L D B E D O N E B Y A S P E C I A L L Y INSTRUCTED PERSON.

  • Page 4: Exploded Views And Parts List

    XR-A880, XR-A770 2. EXPLODED VIEWS AND 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. Therefore, when replacing, be sure to use parts of identical designation. •...
  • Page 5 See Contrast table (2) Rear Pad See Contrast table (2) Packing Case See Contrast table (2) (2) CONTRAST TABLE XR-A880/KUCXJ, YPWXJ, XR-A770/KUCXJ and YPWXJ are constructed the same except for the following : Part No. Mark No. Symbol and Description Remarks XR-A880...
  • Page 6 XR-A880, XR-A770 2.2 EXTERIOR (1/2) KUCXJ Type only Note : Hook Tray cap on top of loading tray and then insert the bottom three hooks. Note : Attatch on the same numbers × three. Refer to "2.5 $M MECHANISM CD". XR-A770 Only...
  • Page 7 Push Rivet AEC7138 Cushion Rubber XEB3002 65 Label See Contrast table (2) (2) CONTRAST TABLE XR-A880/KUCXJ, YPWXJ, XR-A770/KUCXJ and YPWXJ are constructed the same except for the following : Part No. Mark No. Symbol and Description Remarks XR-A880 XR-A880 XR-A770...
  • Page 8 XR-A880, XR-A770 2.3 EXTERIOR (2/2) XR-A880 ONLY XR-A770 only XR-A880 only YPWXJ Type only Refer to "2.4 FRONT PANEL SECTION".

  • Page 9: Exterior

    XEC3008 Push Rivet See Contrast table (2) Shield Plate See Contrast table (2) (2) CONTRAST TABLE XR-A880/KUCXJ, YPWXJ, XR-A770/KUCXJ and YPWXJ are constructed the same except for the following : Part No. Mark No. Symbol and Description Remarks XR-A880 XR-A880...

  • Page 10: Front Panel Section

    XR-A880, XR-A770 2.4 FRONT PANEL SECTION 34(2/2) 34(1/2) Refer to "2.7 MECHANISM UNIT". XR-A880ONLY...
  • Page 11 Front Panel Assy See Contrast table (2) Function Button XZN3020 CD Button XZN3018 (2) CONTRAST TABLE XR-A880/KUCXJ, YPWXJ, XR-A770/KUCXJ and YPWXJ are constructed the same except for the following : Part No. Mark No. Symbol and Description Remarks XR-A880 XR-A880...
  • Page 12 XR-A880, XR-A770 2.5 $M MECHANISM CD Refer to "2.6 SERVO MECHANISM ASSY".
  • Page 13 XR-A880, XR-A770 2.6 SERVO MECHANISM ASSY • $M MECHANISM CD PARTS LIST Mark No. Description Part No. MOTOR Assy AWZ8428 SW Assy AWZ8429 CD Assy AWZ3141 • • • • • Servo Spring ABH7126 Belt AEB7072 Clamp Magnet AMF7001 Yoke ANB7067 Mecha Base ANW7125...
  • Page 14 XR-A880, XR-A770 2.7 MECHANISM UNIT Mech. ΙΙ Only Mech. Ι Only Mech. ΙΙ Mech. Ι Mech. ΙΙ Mech. Ι Only Mech. ΙΙ...
  • Page 15 XR-A880, XR-A770 • MECHANISM UNIT PARTS LIST Mark No. Description Part No. Plate HD BLK (Mech. Ι) F513-819 Plate HD BLK (Mech. ΙΙ) F513-811 Motor Main BLK (Mech. ΙΙ only) F525-324 PCB Control BLK F567-621 Clutch Assy BLK F522-037 Main Belt FF17G-31 Joint Belt 113 (Mech.

  • Page 16: Schematic Diagram

    CN8002 CD ASSY(XWZ3141) FM/AM TUNER MODULE (AXQ7065) AF ASSY (XR-A880 : XWZ3134) (XR-A770 : XWZ3114) DISPLAY ASSY (XR-A880/KUCXJ : XWZ3135) (XR-A770/KUCXJ : XWZ3117) (XR-A880/YPWXJ : XWZ3142) (XR-A770/YPWXJ : XWZ3143) DECK MECHA SUB DISPLAY ASSY (XR-A880 : XWZ3132) (XR-A770 : XWZ3112)

  • Page 17: Xr-A770

    XR-A880, XR-A770 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". REAR AMP ASSY SW ASSY (AWZ8429) (XR-A880:XWZ3195) MOTOR (XR-A770:XWZ3194) ASSY (AWZ8428) CN8003 XR-A880 TRADE LOGIC ASSY ASSY (XWZ3140) (XWZ3133) XR-A770 (XR-A880)
  • Page 18 XR-A880, XR-A770 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-A880, XR-A770 AF AMP AF AMP REGULATOR...
  • Page 20 XR-A880, XR-A770 3.3 CD, MOTOR and SW ASSEMBLIES CD ASSY (XWZ3141) MOTOR ASSY (AWZ8428) CARRIAGE MOTOR J8502 D20PWW0405E SERVO MECHANISM ASSY AXA7039...
  • Page 21 XR-A880, XR-A770 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 C8307 VREF 1000p VREF:CN8005- Pin3...
  • Page 22 XR-A880, XR-A770 3.4 AF ASSY (1/3) (REC) (REC) AF ASSY (PB) (XR-A880 : XWZ3134) (XR-A770 : XWZ3114) (REC) (PB) : DECK PB SIGNAL ROUTE (REC) : DECK REC SIGNAL ROUTE (REC) (REC) (PB) (PB) (PB) 220k 220k 0.01...
  • Page 23 XR-A880, XR-A770 IC2101(2/2) BA4558F–HT IC2101(1/2) (PB) BA4558F–HT (PB) (PB) (PB) (PB) (REC) (REC) (REC) (REC) (REC)
  • Page 24 XR-A880, XR-A770 CN8004 3.5 AF ASSY (2/3) (CD) (CD) (TA) (TA) (S/T) (S/T) (TA) R3019,R3020 XR-A880 : 1.8k XR-A770 : 3.9k XR-A770:XKB3002 XR-A880:VKB1060 (F/W) BA4558F-HT (PB) (CD) (PRO) (PRO) CN3702 BA4558F-HT BA4558F-HT (F/W) (F/W) XR-A880 ONLY 100k (PB) (PB) (PB) CN5501 CN83...
  • Page 25 XR-A880, XR-A770 CN6201 AF ASSY (XR-A880 : XWZ3134) (XR-A770 : XWZ3114) (S/T) (TA) (S/T) (S/T) XR-A770 ONLY 5600p BA4558F-HT XR-A880 BA4558F-HT ONLY BA4558F-HT BA4558F-HT 5600p 1SS133 0.022 BA4558F-HT 1SS133 BA4558F-HT BA4558F-HT 0.022 (F/W) (F/W) BA4558F-HT (F/W) (F/W) (REC) (REC) (PB) (TA) : TUNER AUDIO SIGNAL ROUTE : CENTER SIGNAL ROUTE...
  • Page 26 XR-A880, XR-A770 3.6 AF (3/3) and SECONDARY ASSEMBLIES J3401 R3421,R3422 R3423,R3424 : CENTER SIGNAL ROUTE XR-A880: 3.3k XR-A880: 1.8k (S/T) XR-A770: 5.6k XR-A770: 6.2k : SURROUND/TWEETER SIGNAL ROUTE (F/W) (S/T) : FRONT/WOOFER SIGNAL ROUTE (S/T) (S/T) D3674 (S/T) D3673 (S/T) BA4558F-HT U1GC44 2.2/50...
  • Page 27 XR-A880, XR-A770 CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.400 MFD, BY REPLACE ONLY WITH SAME TYPE NO. 491002 MFD, BY LITTELFUSE INK. FOR IC23 (AEK7004). LITTELFUSE INK.
  • Page 28 XR-A880, XR-A770 3.7 PRIMARY and SUB TRANS ASSEMBLIES SUB TRANS ASSY KUCXJ TYPE : (AWZ3119) YPWXJ TYPE : (AWZ3116) (KUCXJ TYPE : XTS3029) (YPWXJ TYPE : XTS3018) POWER TRANSFORMER YPWXJ ONLY PRIMARY ASSY (KUCXJ TYPE : XWZ3118) (YPWXJ TYPE : XWZ3115)
  • Page 29 XR-A880, XR-A770 KUCXJ : REK1085 (6.3A) YPWXJ : AEK1060 (T4A) KUCXJ ONLY YPWXJ ONLY LIVE NEUTRAL KUCXJ ONLY • NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.
  • Page 30 3.8 DISPLAY and CD SW LED ASSEMBLIES DISPLAY ASSY DISPLAY ASSY S5911 : DISPLAY S5912 : TIMER/CLOCK ADJ (XR-A880/KUCXJ : XWZ3135) (XR-A770/KUCXJ : XWZ3117) S5913 : ENTER S5914 : P.BASS (XR-A880) (XR-A880/YPWXJ : XWZ3142) (XR-A770/YPWXJ : XWZ3143) BALANCE (XR-A770) S5915 : ZOOM SURROUND...
  • Page 31 XR-A880, XR-A770 CN5401 CN5102 CN5502 52045–1445 CN5501 52045–3845 CN2901 52045–1945 XR-A880: 470 XR-A770: 1k KUCXJ XR-A880 ONLY ONLY D5561–D5568 1SS181 CD SW LED ASSY S5937 : OPEN/CLOSE ( S5938 : DISC CHANGE S5939 : DISC-3 S5940 : DISC-2 S5941 : DISC-1 D5553,D5554 D5555,D5556 D5557–D5560...
  • Page 32 XR-A880, XR-A770 3.9 SUB DISPLAY and REAR AMP ASSEMBLIES CN5502 SUB DISPLAY ASSY (XR-A880:XWZ3132) (XR-A770:XWZ3112) SUB DISPLAY ASSY S5401 : 60Hz level control S5402 : 120Hz level control S5403 : WOOFER level control (XR-A770 ONLY) XR-A880 S5404 : P.BASS ON/OFF ONLY (XR-A770) S5404 : PRO LOGIC MODE...
  • Page 33 XR-A880, XR-A770 3.10 TRADE and PRO LOGIC ASSEMBLIES (XR-A880 ONLY) PRO LOGIC ASSY (XWZ3133) (PRO) (PRO) (PRO) : SURROUND SIGNAL ROUTE : CENTER SIGNAL ROUTE (PRO) : PRO LOGIC SIGNAL ROUTE KP200TA13L TRADE ASSY (XWZ3140) CN3701...

  • Page 34: Pcb Connection Diagram

    XR-A880, XR-A770 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 35 XR-A880, XR-A770 4.1 FM/AM TUNER MODULE CN3051 FM/AM TUNER MODULE VR6201 Q6204 Q6203 SIDE A FM/AM TUNER MODULE IC6201 Q6201 Q6202 Q6301 Q6303 Q6302 Q6304 Q6401 IC6202 Q6403 Q6214 Q6306 Q6402 Q6404 Q6205 (ANP7159-B) SIDE B...
  • Page 36 XR-A880, XR-A770 4.2 CD, MOTOR and SW ASSEMBLIES SW ASSY MOTOR LOADING ASSY MOTOR SERVO MECHANISM ASSY Q8101 PICKUP ASSY Q8254 Q8252 Q8251 Q8253 CN1052 SIDE A (ANP7144-E) CD ASSY B C D...
  • Page 37 XR-A880, XR-A770 SW ASSY MOTOR ASSY IC8201 IC8101 IC8301 SIDE B (ANP7144-E) CD ASSY B C D...
  • Page 38 XR-A880, XR-A770 4.3 AF ASSY AF ASSY CN3702 FAN MOTOR CN83 VR280 Q3081 Q3081 IC23 IC32 Q51 Q52 Q57 IC42 IC51...
  • Page 39 XR-A880, XR-A770 CN8004 CN5501 CN6201 J3401 MECHANISM UNIT SIDE A (XNP3009-B) VR2802 VR2801 VR2301-VR2306 IC2301 Q51 Q52 Q57 Q2801 Q2804 IC51 IC3331 IC3301 Q2802...
  • Page 40 XR-A880, XR-A770 AF ASSY SIDE B IC5892 IC5891 Q2306 Q2105 Q2104 IC2201 Q5751 Q5752 Q2802 Q2805-Q2807 IC2101 Q2103 IC5751 IC5751 Q2301 Q3353 Q3354 Q2203 Q2204 Q3607 Q3622 Q3611 Q3606 Q3605 Q3311-Q3314...
  • Page 41 XR-A880, XR-A770 (XNP3009-B) 5751 Q5752 IC3101-IC3103 Q3101 Q3102 IC3001 5751 IC5751 IC3381 Q3401-Q3403 IC3201-IC3203 Q3202 Q3201 Q2203 Q2204 Q56 Q53 Q55 IC34 Q33 3311-Q3314...
  • Page 42 XR-A880, XR-A770 4.4 SECONDARY ASSY SECONDARY ASSY IC41 IC71 IC21 IC22 IC31 SIDE A SECONDARY ASSY (XNP3009-B) SIDE B...
  • Page 43 XR-A880, XR-A770 4.5 PRIMARY and SUB TRANS ASSEMBLIES POWER TRANSFORMER PRIMARY ASSY AC IN SUB TRANS ASSY (XNP3013-B) SIDE A...
  • Page 44 XR-A880, XR-A770 4.6 DISPLAY and CD SW LED ASSEMBLIES DISPLAY CN5102 ASSY MECHANISM UNIT CD SW ASSY (XNP3013-B) SIDE A CN5401...
  • Page 45 XR-A880, XR-A770 DISPLAY ASSY Q2901 Q2903 Q2906 Q2908 Q5605 IC5601 Q2904 IC5501 Q2910 Q5502 Q5501 Q5821 IC5631 CD SW ASSY Q5601 Q5606 Q5604 IC3901 SIDE B (XNP3013-B) IC3931...
  • Page 46 XR-A880, XR-A770 4.7 REAR AMP, TRADE and PRO LOGIC ASSEMBLIES CN3401 REAR AMP ASSY (XNP3009-B) CN3701 TRADE ASSY (XNP3009-B) PRO LOGIC ASSY (XNP3013-B) SIDE A L M N...
  • Page 47 XR-A880, XR-A770 REAR AMP ASSY (XNP3009-B) PRO LOGIC ASSY (XNP3013-B) SIDE B...
  • Page 48 XR-A880, XR-A770 4.8 SUB DISPLAY ASSY SUB DISPLAY ASSY IC5411 Q5411 Q5415 SIDE A SIDE B CN5502 (XNP3013-B)

  • Page 49: Pcb Parts List

    XR-A880, XR-A770 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. Therefore, when replacing, be sure to use parts of identical designation.
  • Page 50 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. C6224 CEAT100M50 C8129 CCSQCK1R0C50 C6243 CEAT101M16 C8142 CEAL101M6R3 C6231 CEAT1R0M50 C8127 CEAL1R0M50 C6227 CEAT220M25 C8126, C8139 CEAL470M16 C6214, C6236 CEAT2R2M50 C8135 CEAL4R7M16 C6262 CEAT3R3M50 C8124 CEALR47M50 C6219 CEAT470M10 C8136 CEAT100M50 C6244...
  • Page 51 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. CAPACITORS AF ASSY (XWZ3134) C2303, C2304 (270pF) ACG7024 C2301, C2302 CCSQCH100D50 SEMICONDUCTORS C2192 CCSQCH220J50 IC23 (400mA) AEK7004 CCSQCH331J50 IC3331 (1.25A) AEK7010 C3319, C3320 CCSQCH3R0C50 IC33 (2A) AEK7013 IC2101, IC3101–IC3103, IC3381, IC34 BA4558F-HT C3321, C3322 CCSQCH470J50 IC3421, IC5691...
  • Page 52 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. C3019, C3020, C3031, C3032 CKSQYB682K50 IC3203 BU4066BCF C3323, C3324 CKSQYB682K50 IC5891, IC5892 BU4094BCF C3025, C3026 CKSQYB683K25 IC2201 HA12136AF C3315, C3316 CKSQYB821K50 IC2301 HA12211NT C3331–C3333 CKSQYF104Z50 IC3001 LC75396NE C2194, C37 CKSQYF105Z16 IC42 NJM7805FA...
  • Page 53 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. C3319, C3320 CCSQCH3R0C50 C3323, C3324 CKSQYB682K50 C3321, C3322 CCSQCH470J50 C3025, C3026 CKSQYB683K25 CEAL100M50 C3331–C3333 CKSQYF104Z50 C3621 CEAL2R2M50 C2194, C37 CKSQYF105Z16 C3311, C3312 CEANL2R2M50 C2801 CQHA822J2A C3317, C3318 CEANP100M35 C2210, C2211 CQMBA103J50 C3313, C3314...
  • Page 54 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. CAPACITORS OTHERS CEAT220M50 CN83 52147-0410 4P JUMPER CONNECTOR CEAT221M63 1P AC INLET AKP7032 CEAT222M25 H1, H2 FUSE CLIP AKR7001 CQMA103K2E EARTH METAL FITTING VNF1084 C21, C22 (4700µF/80V) XCH3001 RESISTORS DISPLAY ASSY (XWZ3135 and XWZ3142)
  • Page 55 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. RESISTORS SWITCHES AND RELAYS R5529 (470Ω) ACN7056 S5951 ASX7004 R5554, R5556, R5561, R5562 (1.5kΩ) ACN7062 S5952 ASX7017 R5558, R5563, R5564 (47kΩ) ACN7077 S5911–S5931 XSG3001 R5508 RA11T104J R5506 RA7T104J CAPACITORS C5812 (0.047F/5.5V) ACH1246...
  • Page 56 XR-A880, XR-A770 Mark No. Description Part No. Mark No. Description Part No. D3671 MTZJ20A D3371, D3372 U1GC44 SUB DISPLAY ASSY (1) CONTRAST TABLE CAPACITORS C3411 CEAT101M35 XWZ3132 and XWZ3112 are constructed the same except C3401, C3402 CEATR47M50 for the following : Part No.

  • Page 57: Adjustment

    XR-A880, XR-A770 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 ± 2 g i l AM Tuner Section •...

  • Page 58: Cassette Deck Section

    XR-A880, XR-A770 6.2 CASSETTE DECK SECTION • 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 & r i f ± Tape Speed ADJ.
  • Page 59 XR-A880, XR-A770 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 • Do not switch between forward and reverse operation with the screwdriver inserted.
  • Page 60 XR-A880, XR-A770 Recording Adjustment (1) Bias Oscillation Frequency Adjustment                       l l i e l i l l i ±...
  • Page 61 XR-A880, XR-A770 AF ASSY SIDE A FRONT TAPE TEST POINT R ch VR2303 VR2305 L ch VR2301 VR2302 VR2306 VR2304 VR2802 VR2801 L2801 Fig.7 Adjustment and Measurement Points...

  • Page 62: Test Mode

    XR-A880, XR-A770 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" Short Point TEST MODE : PLAY TEST DISC: YEDS-7...

  • Page 63: General Information

    XR-A880, XR-A770 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 64 XR-A880, XR-A770 • Pin Function z i l LC75396NE (AF ASSY : IC3001) • Electrical Volume IC • Block Diagram LSELO LFCOM LINVIN1 LFOUT LRIN LRCOM LROUT LVref LVref CONTROL LOGIC CIRCUIT CIRCUIT INTERFACE Vref RVref RVref RROUT RINVIN1 RRCOM RSELO RRIN RTIN...
  • Page 65 XR-A880, XR-A770 PDC049A (DISPLAY ASSY : IC5501) • System Control Microcomputer • Pin Function – – – – – – l a i – l a i l a i l a i...
  • Page 66 XR-A880, XR-A770 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 mute FSEQ detection EFM demosulation...
  • Page 67 XR-A880, XR-A770 − 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 − l l i s l l t t i l l i...
  • Page 68 XR-A880, XR-A770 LV1035M (PRO LOGIC ASSY : IC3701) • Dolby Pro Logic Decoder IC • Block Diagram L-BPF3 DCOUT3 R-RECT DCOUT4 23PIN L-RECT 15PIN VLR-TH VLR-1 DC-OUT VLR-2 DC-OUT VCS-2 L-OUT VCS-1 R-OUT VCS-TH S-OUT L+R-RECT DCOUT2 IREF L-R-RECT DCOUT1 R-BPF3 DELAY-OUT...

  • Page 69: Display

    XR-A880, XR-A770 7.1.2 DISPLAY 7 XAV3004 (DISPLAY ASSY : V5621) • FL Display • Pin Assignment • Grid Assignment (2G) (2G to 9G) (7G) (9G) (9G) (16G to 10G)
  • Page 70 XR-A880, XR-A770 • 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 71: Disassembly

    XR-A880, XR-A770 7.2 DISASSEMBLY $M MECHANISM CD × 3 × 3 Bonnet Case × 3 × 3 × 2 × 3 Tray Cap × 3 Main Cam Unhook Note: The loading tray can be pulled out when the main cam is in this position. (The Lock Lever should be in the notch of the Main Cam.) Fitting...

  • Page 72: Front Panel

    XR-A880, XR-A770 FRONT PANEL Unhook Unhook CD SW LED Assy FM/AM TUNER MODULE AF Assy TRADE Assy (XR-A880 only) Front Panel DISPLAY Assy SUB TRANS Assy Mechanism Unit Release the jumper wire from Clip B. PRO LOGIC Assy (XR-A880 only) SUB DISPLAY Assy PRIMARY Assy SECONDARY Assy...
  • Page 73 XR-A880, XR-A770 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 pulley press-in station located on the loading Carriage Motor tray, as shown in the figure on the right.

  • Page 74: Block Diagram

    XR-A880, XR-A770 7.3 BLOCK DIAGRAM DUMMY TUNER IC3001 ZOOM BASS MODULE SURROUND BLASTER LC75396 (-2dB) $ MECH (-8dB) (200mV) BASS TREBLE TAPE DECK (-3.8dB) (+2dB) (-6dB) PROLOGIC LV1035M IC3701 To R ch From R ch BASS REAR CENTER BLASTER TRIM : -10dB TAPE DECK HA12211NT...
  • Page 75 XR-A880, XR-A770 IC3381 IC3301 (XR-A880 : +5dB) POWER AMP (XR-A770 : +8dB) RY3601 FRONT TOTAL GAIN +42dB STK407-090 (+40dB) HEAD PHONE CN3901 IC3401 POWER AMP REAR XR-A880 ONLY CENTER TWEETER IC3951 TDA8560Q IC3421 (+40dB) (XR-A880 : +9dB) (XR-A770 : +5dB) IC3202 DOLBY PROLOGIC OFF...

  • Page 76: Panel Facilities And Specifications

    XR-A880, XR-A770 8. PANEL FACILITIES AND SPECIFICATIONS • PANEL FACILITIES 4 5 6 7 8 ¤ 1 2 3 ™ £ § ∞ ¶ ¢ • ª ^ & * ) ( ¡ º Ÿ ⁄ ≠ – DISC-1 indicator TAPE Eject button (0) DISC-2 indicator...
  • Page 77 XR-A880, XR-A770 Display section 5 Displays timer function indications. 6 Indicates CD function status. 7 Lights during recording. 8 Lights during ASES operation. 9 Lights during Sleep Timer operation. 0 Indicates tuner operation status. - Displays a wide range of operation status indications. = Lights when BEAT CUT 2 is selected.
  • Page 78 XR-A880, XR-A770 Function button section REMOTE CONTROL UNIT For moders XR-A770 CD function button & TUNER/BAND function button TAPE function button AUX function button TUNING [1,4 (–), (+) ¢,¡] buttons STOP button (7) PLAY/PAUSE button (2 3) ÷ Roles of the common operation buttons (The rules of the buttons vary depending on the input functions as REMOTE CONTROL UNIT For moders XR-A880 shown below.)
  • Page 79 XR-A880, XR-A770 REMOTE CONTROL UNIT For moders XR-A770 REMOTE CONTROL UNIT For moders XR-A880 1 OPEN/CLOSE button 1 OPEN/CLOSE button 2 DISC CHANGE button 2 DISC CHANGE button 3 PGM button 3 PGM button 4 SLEEP timer button 4 SLEEP timer button 5 TAPE I/II function button 5 TAPE I/II function button 6 AUX function button...

  • Page 80: Specifications

    XR-A880, XR-A770 • SPECIFICATIONS 7 STEREO FILE-TYPE CD CASSETTE DECK RECEIVER Cassette deck section Amplifier Section Systems ............ 4 track, 2-channel stereo XR-A880 (U.S. and Canadian model) Heads ..........Recording/playback head x 1 [ Front ] ..............Playback head x 1 Continuous Average Power Output is 80 Watts* per channel, ................

This manual is also suitable for:

Xr-a770/kucxjXr-a880//ypwxjXr-a770/ypwxj

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