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Aiwa AV-D55 Service Manual

Av stereo receiver
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See also: Simplified Service Manual
AV-D55
U(B)
SERVICE MANUAL
STEREO AV RECEIVER
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No.09-994-329-7T1).
S/M Code No. 09-994-329-7R1

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Summary of Contents for Aiwa AV-D55

  • Page 1 AV-D55 U(B) SERVICE MANUAL STEREO AV RECEIVER This Service Manual is the “Revision Publishing” and replaces “Simple Manual” (S/M Code No.09-994-329-7T1). S/M Code No. 09-994-329-7R1...

  • Page 2: 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 and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. Laboratories Licensing Corporation.

  • Page 3: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-A40-435-080 ZENER,MTZJ30D 87-A40-347-080 ZENER,MTZJ2.2B 87-A21-097-040 C-IC,M62463AFP 87-A40-646-010 DIODE,FMB-G16L 87-A21-015-040 C-IC,M62491FP 87-070-136-080 ZENER,MTZJ5.1B 87-017-022-080 IC,NJM2068M-D(T1) 87-A40-488-080 DIODE,1SS244 87-020-784-080 IC,TC4053BF 87-017-915-080 IC,BU4094BCF 87-017-931-080 ZENER,MTZJ5.6B 87-A40-348-080 ZENER,MTZJ3.3A 87-017-888-080 IC,NJM4558MD 87-A40-438-080...
  • Page 4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C288 87-010-190-080 S CHIP F 0.01 C516 87-010-370-080 CAP,E 330-6.3 SME C289 87-010-190-080 S CHIP F 0.01 C517 87-010-196-080 CHIP CAPACITOR,0.1-25 C290 87-010-190-080 S CHIP F 0.01 C518 87-010-196-080 CHIP CAPACITOR,0.1-25 C291...
  • Page 5 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION L291 87-003-383-010 COIL,1UH-S C830 87-010-546-080 CAP, ELECT 0.33-50V L292 87-003-383-010 COIL,1UH-S C831 87-010-971-080 C-CAP,S 4700P-50 B J L293 87-003-383-010 COIL,1UH-S C832 87-012-349-080 C-CAP,S 1000P-50 CH L294 87-003-383-010 COIL,1UH-S C837 87-010-971-080 C-CAP,S 4700P-50 B J...
  • Page 6 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C132 87-012-368-080 C-CAP,S 0.1-50 F S107 87-A90-095-080 SW,TACT EVQ11G04M C133 87-016-526-080 C-CAP,S 0.47-16 BK S108 87-A90-095-080 SW,TACT EVQ11G04M C134 87-010-196-080 CHIP CAPACITOR,0.1-25 S109 87-A90-095-080 SW,TACT EVQ11G04M C135 87-012-368-080 C-CAP,S 0.1-50 F S111 87-A90-095-080...
  • Page 7 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C756 87-012-286-080 CAP, U 0.01-25 L781 87-005-847-080 COIL,2.2UH(CECS) C757 87-012-188-080 C-CAP,U 47P-50 CH L791 87-A50-209-010 COIL,1POLE MPX(MIT) C758 87-012-167-080 C-CAP,U 5P-50 CH L792 87-A50-209-010 COIL,1POLE MPX(MIT) C761 87-010-196-080 CHIP CAPACITOR,0.1-25 L832 87-005-847-080...

  • Page 8: Transistor Illustration

    • Regarding connectors, they are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is received. CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor...
  • Page 9 BLOCK DIAGRAM TUNER C.B MAIN C.B FRONT C.B TUNER BLOCK FL101 (DISPLAY) TUNE/IFC TUNE/IFC IC721 PLL-CE PLL-CE LC72131D T-BASE TM-BASS IC101,102 IF/DET MPX BU4049BLF µCON DATA IC771 DATA IC103 LA1837 µPD780028GF-027-3BA DRIVER S110,112,114~116 TUNER L S403 STB-31 ADO/CS KEY1 MATRIX L OUT FUNCTION S101,107~109...
  • Page 10 WIRING-1 (MAIN) C307 Q219 C207 RY281 Q220 C320 R285 R286 R287 R483 R482 R481 RY481 C524 C523 C143 RY801 WOOFER IN CD IN AUX IN PHONO SURROUND SURROUND CENTER MONITOR VIDEO 1 VIDEO 1 VIDEO 2 VIDEO 2 VIDEO /DVD OUT /DVD IN /LD/TV /LD/TV...
  • Page 11 SCHEMATIC DIAGRAM-1 (MAIN 1/2) C307 Q303,305,307,309,311, 10/100 Q313,345,330,331 Q219,221,222 POWER AMP PROTECT Q203,205,207,209 C207 10/100 Q319,321,322 Q213,215,230,231 PROTECT POWER AMP RY801 DG12D2 MUTE PROTECT PROTECT PROTECT Q202 MUTE Q223,224,240 PROTECT RY281 DG12D2- Q326 Q320,325 PROTECT PROTECT D281 1SS133 Q204,206,208,210 R285 R286 R287 Q214,216,232,233...
  • Page 12 WIRING-2 (AC/PT) SCHEMATIC DIAGRAM-2 (AC/PT)
  • Page 13 SCHEMATIC DIAGRAM-3 (MAIN 2/2) INPUT C523 2200p SELECT CN701 C524 2200p Q904-906 SELECT LOGIC VIDEO IN SELECT BUFFER BUFFER BUFFER SIGNAL : PB CN601...
  • Page 14 WIRING-3 (FRONT)
  • Page 15 SCHEMATIC DIAGRAM-4 (FRONT) SWITCH INV. BUFFER 1000p INV. Q111 2SK2158 RESET IC102 +VM SWITCH DECORDER 0.58 0.58 LED DRIVER INV. SWITCH Q110,112,114,115 LED DRIVER IC101 DECORDER Q101,103,104,108 LED DRIVER...
  • Page 16 WIRING-4 (TUNER)
  • Page 17 SCHEMATIC DIAGRAM-5 (TUNER) FM B+ SWITCH...
  • Page 18 WIRING-5 (PROLOGIC)
  • Page 19 SCHEMATIC DIAGRAM-6 (PROLOGIC) BUFFER SIGNAL : PB...
  • Page 20 WIRING-6 (HP VIDEO/GEQ) SW401 FUNCTION LED401 (INDICATOR) S403 TAPE MONITOR S402 S401 POWER AUDIO IN VIDEO IN R507 J501 R508 VIDEO3 J603 PHONES...
  • Page 21 SCHEMATIC DIAGRAM-7 (HP VIDEO/GEQ) SIGNAL : PB...
  • Page 22 ELECTRICAL ADJUSTMENT IC BLOCK DIAGRAM IC, BU4094BCF TUNER C.B FFE801 L772 L771 L981 IC771 IC, M62431FP < TUNER SECTION > 1. Clock Frequency Check Settings: • Test point: TP2 (CLK IC771 pin30) PRACTICAL SERVICE FIGURE Method: Set to AM 1710kHz and check that the test <...
  • Page 23 IC, LC72131D IC, LA1837NL IC, BA7625...
  • Page 24 IC, M62491FP IC, M62463AFP...
  • Page 25 IC DESCRIPTION IC, UPD780228GF Pin No. Pin Name Description Pin No. Pin Name Description ________________ K-SCAN Scan output to diode input (Active “L”). I-SYNC-DET/I-RDS-SIG OSD sync. AD input. RDS tuning signal level. AD input. O-PLL-CE Tuner PLL chip enable output. I-JOG2 Rotary encoder (JOG2).
  • Page 26 MECHANICAL EXPLODED VIEW 1/1 P.C.B PLATE PT HT-SINK P.C.B P.C.B P.C.B CHASS MAIN P.C.B PLATE SHLD P.C.B P.C.B CHASS FR P.C.B PLATE BOTTOM P.C.B...

  • Page 27: Mechanical Parts List

    24 8Z-AR3-001-010 PANEL,REAR UBNM 5 8Z-AR1-012-010 KNOB,RTRY FUN 25 88-911-161-110 FF-CABLE,11P 1.25 6 8Z-AR1-017-010 RING,VOL 26 88-AR1-203-010 HLDR,TU 7 82-NE6-067-010 BADGE,AIWA 30N 27 8Z-AR1-205-010 HLDR,HT-SINK 8 8Z-AR1-021-010 FOOT,REAR 28 88-NF6-205-010 GUIDE,FL 40-150- 9 9 8Z-AR1-020-010 RING,FOOT SIL 29 8Z-AR1-210-010 HLDR,PT PWB...

  • Page 28: Anode Connection

    FL (BJ691GK) GRID ASSIGNMENT/ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION...

  • Page 29: Accessories/Package List

    ACCESSORIES/PACKAGE LIST REF. NO PART NO. KANRI DESCRIPTION 1 8Z-AR3-903-010 IB,U(ESF)M 2 88-AR2-654-010 RC UNIT,RC-8AR03 3 87-043-115-010 ANT,FEEDER FM 4 87-006-225-010 AM LOOP ANT NC2...
  • Page 30 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore 931196...

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