Aiwa XR-H220MD Service Manual

Md / cd stereo system

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Service manual (62 pages)

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Page 1 XR-H220MD EZ,K SERVICE MANUAL BASIC TAPE MECHANISM : TN-591SW-143 MD / CD STEREO SYSTEM BASIC CD MECHANISM : 4ZG-1 Z3RNSMDJM BASIC MD MECHANISM : ZZG-7 DM This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-997-413-6T1).
Page 2: Table Of Contents
TABLE OF CONTENTS SPECIFICATIONS ..........................3 ACCESSORIES/PACKAGE LIST ......................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING/ Precaution to replace Optical block......................4 DISASSEMBLY INSTRUCTIONS ......................5-7 ELECTRICAL MAIN PARTS LIST ..................... 8-12 TRANSISTOR ILLUSTRATION ......................13 FL GRID ASSIGNMENT/ANODE CONNECTION ................14 BLOCK DIAGRAM-1 (MAIN) ......................
Page 3: Specifications
SPECIFICATIONS • Design and specifications are subject to change without notice. • Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. • The word “BBE” and the “BBE symbol” are trademarks of BBE Sound,Inc.
Page 4: Protection Of Eyes From Laser Beam During Servicing
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.
Page 5: Disassembly Instructions
DISASSEMBLY INSTRUCTIONS 1. Remove the four screws A (BVT 2+3-10 W/O SLOT). 3. Remove the HLDR, SHLD TOP in the direction of the arrow. Remove the 7ZG-9 in the direction of the arrow. HLDR, SHIELD TOP 7ZG-9 7ZG-8 A1 2. Remove the two screws A (S-SCREW, MDT), two screws B (S-SCREW, MD) and four screws C (VTT+3-4).
Page 6 4. Remove the two screws A (VTT+2-4), and remove the PLATE ASSY, SIDE L and PLATE SIDE R in the direction of the arrow. Remove the screw B (VW+1.7-5 W/O MFZN2C), and remove the HEAD and OWH RF325-74A in the direction of the arrow. CAM, LOAD HEAD, OWH RF325-74A Stud...
Page 7 6. Remove the CAM, LOAD in the direction of arrow. Note During Assembling: Rotate the gear fully in the direction of the arrow. Set up the mechanism so that the reference holes of CAM and LOAD are positioned closest to the shaft of LEVER, SW H. Let the CAM and LOAD engage with the teeth of GEAR, IDLER2.
Page 8: Electrical Main Parts List
ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-A40-412-040 C-DIODE,SB05-05CP 87-A40-336-080 ZENER,MTZJ27D T-72 87-017-888-080 IC,NJM4558MD 87-020-465-080 DIODE,1SS133 (110MA) 87-A20-870-010 IC,GP1F37R 87-A40-345-080 ZENER,MTZJ10C 87-A20-971-040 C-IC,SN74LV14APW 87-070-274-080 DIODE,1N4003 SEM 87-A20-707-010 C-IC,CXA2523AR 87-A20-708-010 C-IC,CXD2652AR 87-A40-454-090 DIODE,1N5393 87-A40-466-080 ZENER,MTZJ2.7A...
Page 9 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C317 87-010-546-080 CAP, ELECT 0.33-50V C784 87-018-202-080 CAP, CERAM. 6800PF C318 87-010-546-080 CAP, ELECT 0.33-50V C785 87-010-405-080 CAP, ELECT 10-50V C322 87-018-209-080 CAP, CER 0.1-50V C786 87-010-405-080 CAP, ELECT 10-50V C323 87-018-209-080 CAP, CER 0.1-50V...
Page 10 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION TC942 87-011-221-080 CAP, TRIMMER 30P S306 87-A91-024-080 SW,TACT KSH0611BT W101 83-NE2-618-110 F-CABEL,5P-2.5 S307 87-A91-024-080 SW,TACT KSH0611BT WH102 87-A90-459-010 HLDR,WIRE 2.5-5P S308 87-A91-024-080 SW,TACT KSH0611BT X701 87-A70-061-010 VIB,XTAL 4.500MHZ CSA-309 S309 87-A91-024-080 SW,TACT KSH0611BT...
Page 11 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION CON905 87-A60-423-010 CONN,14P V TOC-B C300 87-010-831-080 C-CAP,U,0.1-16F CON906 87-A60-422-010 CONN,8P V TOC-B C301 87-010-831-080 C-CAP,U,0.1-16F R405 87-A50-189-080 C-COIL,S BLM21B272S C302 87-010-831-080 C-CAP,U,0.1-16F C305 87-016-462-080 C-CAP,S 1-16 F C307 87-010-831-080 C-CAP,U,0.1-16F...
Page 12 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C608 87-010-831-080 C-CAP,U,0.1-16F L614 87-A50-163-080 C-COIL,ZBFS5101-PT CN400 87-A60-027-080 C-CONN,8P H WHT L615 87-A90-034-080 C-FLTR,EMI BLM41P750 CN401 87-A60-062-010 CONN,05P V 9604S-05C L616 87-A50-163-080 C-COIL,ZBFS5101-PT FB501 87-A90-828-080 C-F-BEAD, BK1608LM182 R423 87-025-564-080 C-RES,U M/F 47K D L100...
Page 13: Transistor Illustration
TRANSISTOR ILLUSTRATION FL (11-BT-172GNK) GRID ASSIGNMENT/ANODE CONNECTION B C E B C E E C B 2SB1370 2SB1375 2SC535 RN1305 2SC4115 2SA1235 CSD655 2SA1588 RN2305 KTC3199 RT1N144C 2SC3052 RT1P141C 2SC4116 DTC144EK RT1P144C D G S B C E S DG 2SD1933 2SK2541 2SK2158...
Page 14: Block Diagram-1 (Main)
BLOCK DIAGRAM-1 (MAIN) MW/LW LOOP HEAD FLEX C. B...
Page 15: Block Diagram-2 (Md)
BLOCK DIAGRAM-2 (MD)
Page 16: Wiring-1 (Main)
WIRING-1 (MAIN) MW/LW LOOP CN601...
Page 17: Schematic Diagram-1 (Main)
SCHEMATIC DIAGRAM-1 (MAIN) DC BALANCE/MONO MW IF ADJ. LW VT ADJ. L941,TC942 DISTORTION ADJ. LW TRACKING BAND BAND ADJ. BAND MW TRACKING ADJ. MW/LW BUFFER SIGNAL : PB/FM : REC/AM...
Page 18: Wiring-2 (Front)
WIRING-2 (FRONT)
Page 19: Schematic Diagram-2 (Front)
SCHEMATIC DIAGRAM-2 (FRONT) (DECK MOTOR)
Page 20: Wiring-3 (Md)
WIRING-3 (MD) (COMPONENT SIDE) (CONDUCTOR SIDE) TO/FROM INTERFACE C.B TO/FROM INTERFACE C.B CON905 CON906...
Page 21: Schematic Diagram-3 (Md)
SCHEMATIC DIAGRAM-3 (MD)
Page 22: Wiring-4 (Interface)
WIRING-4 (INTERFACE)
Page 23: Schematic Diagram-4 (Interface)
SCHEMATIC DIAGRAM-4 (INTERFACE)
Page 24: Wiring-5 (Mechanism)
WIRING-5 (MECHANISM) DECK2 DECK1 HEAD FLEX C. B FWD/REV CN351 TO MAIN C. B CON351 (DECK MOTOR) (PLAY2) (PLAY1) (REC) (KEY2) (KEY1) – + B A CON701 CN301 TO FRONT C. B TO MAIN C. B CN701 CON301...
Page 25: Schematic Diagram-5 (Fan)
WIRING-6 (FAN) SCHEMATIC DIAGRAM-5 (FAN)
Page 26: Wiring-7 (Pt)
WIRING-7 (PT) TEST MODE < CD > 1. How to Start the CD Test Mode 2. How to Exit the CD Test Mode While pressing the function CD button, insert the AC plug to Exit the CD test mode by any of the following procedures. the wall outlet.
Page 27: Test Mode
While pressing the MD function key, insert the AC plug to the power outlet. Note: 1) The XR-H220MD can start up the test mode ignoring the mechanism abnormality even if any abnormality is occurring. If the abnormality occurs, disconnect the AC plug quickly.
Page 28 7. Checking the Operation of Loading Mechanism/OWH The operations of the loading mechanism and the OWH are checked by the procedure below. The disc is loaded by inserting the MO (PIT) disc to the slot. Confirm that the EON and the AG lights off and the OWH moves up. CD ™...
Page 29 9. Checking the Servo Operation 9-1. Checking the Focus Search/Spindle Kick 1 (Check of S-Curve) 1) The focus search operation and the spindle kick operation can be performed continuously by pressing the REPEAT key in the “ALL SVoFF” state. During this check, the message “FOCUS CHK” is displayed under this conditions. Because these operations are repeated in this setup regardless whether a disc is inserted or not, the S-curve can be checked when a disc is inserted.
Page 30: Electrical Adjustment/Practical Service Figure
ELECTRICAL ADJUSTMENT MAIN C.B L771 L772 TC942 L941 IC751 L981 L942 IC701 TP (GND) IC601 FRONT C.B CN701 TP10 SFR701 TP11 L331 R.P.E HEAD...
Page 31: Tuner Section
< TUNER SECTION > < DECK SECTION > 1. Clock Frequency Check 9. Tape Speed Adjustment Settings: • Test point: TP2 Settings: • Test tape: TTA-100 Method: Set to MW 1602kHz and check that the test • Test point: TP8, TP9 point becomes 2052kHz±45Hz.
Page 32: Practical Service Figure
PRACTICAL SERVICE FIGURE < TUNER SECTION > < DECK SECTION > < FM SECTION > Tape speed: 3000Hz±5.0% IHF Sensitiviy: Less than 13dB Wow & flutter: Less than 0.25% (THD 3%) (at 108.0/98.0MHz) (W.R.M.S) Less than 14dB Distortion (REC/PB): Less than 2% (at 98.0MHz) (NORM, CrO Distortion:...
Page 33 < MD BLOCK > All adjustments and checks of the MD block are performed using the test mode. 1. Temperature Compensation Adjustment In principle, do not perform the temperature compensation adjustment during the normal maintenance or repair work. If the adjustment value is found out that it is far out of the specification values shown in this service manual, perform the temperature compensation adjustment under the environment where the ambient temperature can be precisely measured.
Page 34 3-2. Checking the IVR, EFB, Focus/Tracking/Sled Gains of the MO Disc • Adjustment procedure 1) Move the pickup to the center track or around the center track of a disc using the B.SKIP and F.SKIP keys. 2) Press the PLAY key to display “FOCUS ON!”. 3) Press the ENTER key to switch the mode to “ALL SV ON”.
Page 35 4. Error Rate Check (PIT Disc) • Test Point: Check the indication on the display • Test Disc: TGYS-1 or equivalent • Adjustment procedure Load the TGYS-1. Move the pickup to the center track or around the center track of a disc using the B.SKIP and F.SKIP keys. Press the MODE key to display “SEL PIT”.
Page 36: Ic Description
IC DESCRIPTION IC, LC876564V Pin No. Pin Name Description __________________ O-CD_OPEN CD tray open output. ____________________ O-CD_CLOSE CD tray close output. ____________ O-PB1 Tape deck playing switching output TAPE1/TAPE2. O-CD_DATA/ CD data output/RDS data input. I-RDS_DATA ________ O-TU_ON TUNER power supply ON/OFF output. O-DSC_CE/ Function IC serial output/PLL data output.
Page 37 Pin No. Pin Name Description P15/TM_BASE FL segment 15 output/TM_BASE input. 65-71 P14-P8 FL segment output. VDD4 — Power supply. 73-79 P7-P1 FL segment output. — Not used. O-MUTE O-KSCAN FL key scan output. _______________ I-DRF/STEREO DRF input/stereo detection input. _______ I-IFC/SUBQ IF count input/CD-SUBQ input.
Page 38 IC, CXD2652AR Pin No. Pin Name Description MNT0 Monitor output terminal. MNT1 Monitor output terminal. MNT2 Monitor output terminal. MNT3 Monitor output terminal. SWDT Microprocessor serial interface data input. SCLK Microprocessor serial interface shift clock input. XLAT Microprocessor serial interface latch input. Latched at falling down edge. SRDT Microprocessor serial interface data output.
Page 39 Pin No. Pin Name Description Address output to external DRAM. Address output to external DRAM. (Not used). DVSS — Digital GND. External DRAM output enable. ________ XCAS CAS output to external DRAM. Address output to external DRAM. ________ XRAS RAS output to external DRAM. Write enable for external DRAM.
Page 40 Pin No. Pin Name Description DCHG Connected to the low impedance power supply. Error signal input to the laser digital APC. ADFG ADIP2 binary-converted FM signal (22.05±1 kHz) input. F0CNT Current source setting output terminal to CXA2523. XLRF Latch output for CXA2523 control. Latched at rise-up. CKRF Shift clock output for CXA2523 control.
Page 41 IC, CXP81952 Pin No. Pin Name Description MCAS — MRAS — Not used. — AMUTE Audio mute signal output. Serial clock output for EEPROM interface. Serial data output for EEPROM interface. Serial data input for EEPROM interface. EEPROM interface chip select signal output. —...
Page 42 Pin No. Pin Name Description ARDY Ready signal input for system control interface. Serial data input for system control interface. SOUT Serial data output for system control interface. ACLK Serial clock output for system control interface. XLAT CXD2652 interface latch signal output. XRST CXD2652 reset signal output.
Page 43 Pin No. Pin Name Description — — Not used. — Connected to VSS. — Open. (Not used) — Connected to VSS. — Connected to VDD. — — — Not used. DRVMUTE BA5970FP mute signal output. — — — — Not used. —...
Page 44: Ic Block Diagram
IC BLOCK DIAGRAM IC, CXA2523AR ADIP AMP TE/SE AMP PEAK 3TADJ EQADJ FE AMP RF AGC VREF AGC I FOCNT XSTBY COMPO COMPP XLAT ADDC SCLK COMMAND I/F SWDT TEMP R TEMP AMP TEMP 1 MORFI MORFO I-V AMP 11 12 IC, BD7910FV...
Page 45 IC, BA5970FP IC, TA2040AP IC, AK4519VF...
Page 46 IC, M62439SP IC, LC72131D IC, BA6417F...
Page 47 IC, LA1837NL IC, MM1454XFBE VREF – QSurround BIAS – ROUT LOUT...
Page 48: Mechanical Parts List 1/1
PANEL,RIGHT V-2 8 8Z-NB9-010-010 PLATE,FRAP 37 87-085-185-010 BUSHING, AC CORD (E) 9 8Z-NB9-013-010 WINDOW,DISPLAY D 38 87-050-079-010 AC-CORD ASSY,E 10 82-NE6-067-010 BADGE,AIWA 30N 39 8Z-NB9-053-010 CABI,REAR EZSM<EZS> 11 8Z-NB9-008-010 PANEL,TRAY 39 8Z-NB9-054-010 CABI,REAR KSM<KS> 12 8Z-NB9-032-010 KNOB,RTRY JOG 40 84-ZG1-245-210...
Page 49: Mechanical Exploded View 1/1
MECHANICAL EXPLODED VIEW 1/1 P.C.B 4ZG-1Z3RNSMDJM HT-SINK,TR LOW P.C.B ZZG-7DM HT-SINK,HIM P.C.B P.C.B TN-591SW-143 CHAS,MAIN HLDR1 HLDR2...
Page 50: Tape Mechanism Exploded View 1/1
TAPE MECHANISM EXPLODED VIEW 1/1 LUG PLATE LUG PLATE HEAD FLEX C.B FELT MAT LUG PLATE FELT MAT...
Page 51: Tape Mechanism Parts List 1/1
TAPE MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 S1-821-030-070 AZIMUTH SPRING 69 S1-959-140-270 ROTARY SPRING 2 S1-921-030-060 HEAD BASE 70 S1-959-143-010 BASE ASSY 3 S1-921-030-140 HEAD PANEL 71 S1-959-140-230 PR STOPPER 4 S1-921-030-090 PANEL P SPR 72 S1-959-145-010...
Page 52: Md Mechanism Exploded View 1/4
MD MECHANISM EXPLODED VIEW 1/4 7ZG-9 YB P.C.B MD MECHANISM PARTS LIST 1/4 REF. NO PART NO. KANRI DESCRIPTION 1 87-ZGA-611-010 FF-CABLE, 8P 1.0 100MM 2 87-ZGA-612-010 FF-CABLE,14P 1.0 100MM 3 8Z-NB9-201-010 HLDR,MD A 87-067-703-010 BVT 2+3-10 W/O SLOT...
Page 53: Md Mechanism Exploded View 2/4
MD MECHANISM EXPLODED VIEW 2/4 CUSH-R,MECHA RE 7ZG-8 A1 CUSH-R,MECHA FR CUSH-R,MECHA RE CUSH-R,MECHA FR P.C.B MD MECHANISM PARTS LIST 2/4 REF. NO PART NO. KANRI DESCRIPTION 1 87-ZG9-202-110 HLDR,SHLD TOP 2 87-ZG9-603-010 FF-CABLE, 8P 1.0 120MM 3 87-ZG9-602-010 FF-CABLE, 21P 0.5 90MM 4 87-ZG9-604-010 FF-CABLE, 5P 1.25 100MM 5 87-ZG9-201-110...
Page 54: Md Mechanism Exploded View 3/4
MD MECHANISM EXPLODED VIEW 3/4 7ZG-3 A1...
Page 55: Md Mechanism Parts List 3/4
MD MECHANISM PARTS LIST 3/4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 87-ZG8-220-110 PLATE ASSY,LATCH 16 87-ZG8-225-110 LEVER ASSY,CAM 2 87-ZG8-259-010 SPR-T,LATCH 17 87-ZG8-239-010 CAM,LOAD 3 87-ZG8-230-110 LEVER,LATCH 18 87-ZG8-257-110 LEVER ASSY,REC 4 87-ZG8-224-110 SPR-E,LATCH 19 87-ZG8-213-010 PLATE,SLIDE R...
Page 56: Md Mechanism Exploded View 4/4
MD MECHANISM EXPLODED VIEW 4/4 PLATE,YOKE HLDR LED GEAR, LEAD P.C.B...
Page 57: Md Mechanism Parts List 4/4
MD MECHANISM PARTS LIST 4/4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 87-ZG3-202-010 CHAS ASSY,OUT-SERT 16 87-A90-616-010 MOT,FF-N30VA 2 87-ZG3-214-010 SPR-T,SPINDLE-A A 87-261-547-310 V+2-3 BLK (1) 3 83-ZG5-308-010 BRG,1.5-2 B 87-263-523-310 SCREW, V+1.7-2 4 83-ZG5-305-010 SPR-P,DISC C 87-261-509-310 SCREW, V+1.4-4...
Page 58: Speaker Disassembly Instructions
SPEAKER DISASSEMBLY INSTRUCTIONS Type.1 Type.4 Insert a flat-bladed screwdriver into the position indicated by the TOOLS arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit andthen remove the speaker units. 2 (-) flat head screwdriver 3 Cut chisel Type.2 How to Remove the PANEL, FR...
Page 59: Speaker Parts List 1/1
SPEAKER PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 87-NSH-612-010 CERAMIC ASSY 2 87-NS7-611-010 CORD,SPKR 3 8Z-NSK-002-010 PANEL,BA 4 8Z-NSK-032-010 PANEL,FR N 5 86-NSZ-601-110 SPKR,120...
Page 60 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 Printed in Singapore 737004...

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