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Aiwa TV-AR145 Service Manual

Aiwa tv-ar145 color television service manual
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TV-AR145
RHCAM

SERVICE MANUAL

COLOR TELEVISION
SPECIFICATION
• Design and specifications are subject to change without notice.
S/M Code No. 09-009-349-2N1

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Summary of Contents for Aiwa TV-AR145

  • Page 1: Service Manual

    TV-AR145 RHCAM SERVICE MANUAL COLOR TELEVISION SPECIFICATION • Design and specifications are subject to change without notice. S/M Code No. 09-009-349-2N1...

  • Page 2: Notices Before Repairing

    NOTICES BEFORE REPAIRING To make the best use of this equipment, make sure to obey the following items when repairing (or mending). 1. Do not damage or melt the tunicate of the leading Insulation resistance: 7.0 to 9.5 M (500 V/s) wire on the AC1 side, including the power supply Voltage-withstand: 3.0 KV for 1 minute cord.

  • Page 3: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION CAP.CERAMICO C403 C1-490-547-200 CAP.SMD X7R 4,7KPF/50V K 0805 C403 C1-494-247-200 CAP.SMD Y5P 4,7KPF/50V K 0805 C410 C1-363-471-600 C.C.D.Y5P/Y5E 470PF>=500V K C405 C1-490-522-200 CAP.SMD X7R 2,2KPF/50V K 0805 C417 C1-364-331-795 C.C.D.SL 330PF/2KV K...
  • Page 4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C805 C1-292-221-055 ELCO 220UF / 385V (30X30) C808 C1-490-533-200 CAP.SMD X7R 3,3KPF/50V K 0805 C806 C1-380-479-522 ELCO G1 4,7UF/50V M C808 C1-494-233-200 CAP.SMD Y5P 3,3KPF/50V K 0805 C807 C1-380-479-522 ELCO G1 4,7UF/50V M C810...
  • Page 5 IC702 C1-710-100-062 I.C. SMD MN24C08MN6 DZ701 C1-415-169-301 DIODO BZX79C4V7 IC604 C1-710-100-063 I.C. SMD TDA-9850T DZ702 C1-415-169-401 DIODO BZX79C5V1 IC701 C1-710-100-095 I.C. XC68HC08TV24CP-AIWA DZ703 C1-415-169-301 DIODO BZX79C4V7 DZ704 C1-415-169-501 DIODO BZX79C5V6 INDUTOR/BOBINA DZ705 C1-415-169-501 DIODO BZX79C5V6 DZ801 C1-415-171-901 DIODO BZX79C18V C1-311-604-200...
  • Page 6 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION Q802 C1-139-999-188 TRANSISTOR 2SD2061E/F R705 C1-183-547-192 RES.METAL FILME 1/2W 470R 5% N Q801 C1-139-999-351 TRANSISTOR 2SK-2545 R706 C1-183-547-092 RES.METAL FILME 1/2W 47R 5% N Q804 C1-320-030-402 TRANSISTOR BC-327/16 R711 C1-183-510-192 RES.METAL FILME 1/2W 100R 5% N...
  • Page 7 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION R212 C1-502-575-002 RES.SMD 75R 5% 0805 R756 C1-502-510-202 RES.SMD 1K 5% 0805 C1-644-505-100 CABO DE FORCA 2X18X2 C/CONECT R213 C1-502-510-102 RES.SMD 100R 5% 0805 R757 C1-502-547-202 RES.SMD 4,7K 5% 0805...
  • Page 8 SCHEMATIC DIAGRAM-1 (MAIN C.B-1/6) MAIN C. B -1/6 (TUNER/DECODER/FRONT SECTION) SPARK MAIN C.B -5/6 TU 10 1 MAIN C.B +33V -2/6 OUT -L OUT -R C621 R113 1kp F/5 0V C108 C618 C623 C625 C627 2K2(N) C619 100 pF/ 50V 10u F/1 6V 1uF/50V 1kp F/5 0V...
  • Page 9 SCHEMATIC DIAGRAM-2 (MAIN C.B-2/6) MAIN C. B -2/6 (AUDIO/V.DRIVE SECTION) MAIN C.B CN6 01 -1/6 FL601 OUT-R R608 EP 60 1 IC 60 1 8V2(N) TDA101 3B AUD2R 2k2 (N) DZ601 C650 1uF/50 V R609 RIGHT R610 R611 R612 R613 C630 100 k 100 k...
  • Page 10 SCHEMATIC DIAGRAM-3 (MAIN C.B-3/6) MAIN C. B -3/6 (CONTROL SECTION) MAIN C.B -2/6 MAIN C.B -1/6 Q703 BC847B FB701 R747 C717 L70 3 R751 R757 22KpF/ 50V(N) 33u H C718 C716 220 uF/ 16V 1KpF/5 0V( N) C719 33p F/5 0V IC 70 3 R737 R701...
  • Page 11 SCHEMATIC DIAGRAM-4 (MAIN C.B-4/6) MAIN C. B -4/6 (AUDIO/VIDEO PROCESS SECTION) MAIN C.B -6/6 MAIN C.B +V. DR HSY N H_V CC -1/6 HOUT SF101 -V. DR PAL-M PAL-N M1971M/ 100 kpF /25 V Q202 F6221 R406 BC847 C217 C501 R502 C406 47p F/5 0V...
  • Page 12 SCHEMATIC DIAGRAM-5 (MAIN C.B-5/6) MAIN C. B -5/6 (POWER SECTION) SPARK MAIN C.B -1/6 FB80 1 FB802 T801 Q801 D806 2SK254 5 SK- 4F1/06 C820 150 R(N) FR803 DZ804 1K- NFR25 18V(N) R814 FR802 D808 D804 39- NFR 25 SK- 3GH/06 1N4148 (N) R809 POWER...
  • Page 13 SCHEMATIC DIAGRAM-6 (MAIN C.B-6/6) MAIN C. B -6/6 (FLYBACK TRANS SECTION) MAIN C.B -3/6 -4/6 HOU T H_VCC -12 V CN401 HSYN L40 2 FR403 D403 20u H 1R- 1/2 W SK- 4F1/06 HTGND NK C.B C425 C421 CN401 C414 470 uF/ 16V C422 180 V...
  • Page 14 WIRING-1 (NK C.B) SCHEMATIC DIAGRAM-7 (NK C.B) NK C. B NK C. B S C R E E N T O M A I N P C B 7 2 2 1 8 - 0 2 IC 90 1 1 0 . 0 4 . 0 0 VI P RE F TDA610 7Q /N1...
  • Page 15 WIRING-2 (MAIN C.B) MAIN C. B...
  • Page 16 WAVEFORM CONDITIONS: 1- TV MODE 2- RF INPUT CH 3 90dB 3- SOUND MONO VOL. MIN. 4-MANIS 127V 60Hz 5- PICTURE CONTR.MAX BRIGHT - 50% COLOR - 30% SHARP - 50% 6- RUN TIME...
  • Page 18 VOLTAGE CHARTS IC301 IC601, IC602 IC603 PIN# VOLTAGE (V) PIN# VOLTAGE (V) PIN# VOLTAGE (V) 12.8 -10.4 14.9 -11.8 11.9 0.082 IC501 IC604 PIN# VOLTAGE (V) PIN# VOLTAGE (V) PIN# VOLTAGE (V) PIN# VOLTAGE (V) -2.2...
  • Page 19 IC701 IC801 PIN# VOLTAGE (V) PIN# VOLTAGE (V) PIN# VOLTAGE (V) 2.39 1.95 IC901 PIN# VOLTAGE (V) IC702 PIN# VOLTAGE (V) IC703 PIN# VOLTAGE (V)

  • Page 20: Ic Block Diagrams

    IC BLOCK DIAGRAMS IC, HEF4052 IC, TDA9309 THERMAL PROTECTION POWER AMPLIFIER CONTROL UNIT FLYBACK GENERATOR IC, TDA1013B...
  • Page 21 IC, TDA8841 IC, TL431 EW/DRV IF_AMP R-Y/B-Y +VDRIVE- SWITCH OVER BLANK CVBS SINC VOLTAGE 2.5Vref CVBS SEP R-Y/B-Y DETECTOR VERTICAL HORIZONTAL 90 0 CHROMA GEOMETRY GEOMETRY CHROMA VERTICAL FASE VCX0 REFERENCE PROCESS PROCESS BANDPASS SAWTOOTH AUDIO GENERATOR COINCIDENCE SLOW/START BURST PHASE DELAY SYSTEM DETECTOR...
  • Page 22 ELECTRICAL ADJUSTMENT Important recommendations INTRODUCTION Before beginning the adjustments, the TV set should be a pre-heated during at least 15 Note: minutes. It is necessary to pre-heat the TV during 15 minutes, before its calibration. The positioning of the TV set should obey the magnetic parameters of South America that it is -120 vertical mG.

  • Page 23: Pulse Width

    Phase timing const. #1 Bit3 Noise coring Bit3 Phase timing const. #2 Bit4 Vertical guard Bit4 ON/OFF behavior Bit5 Search tuning mode Bit5 Aiwa indication Bit6 Blanking mode Bit6 POC control POC off=1 control. Bit7 Video ident mode Bit7 Not used Not used...

  • Page 24: Geometry Of The Image

    Register 24 (OP4): This register has CC line number - (Low nibble to 60Hz and high nibble to 50Hz) The Bits 0,1,2,3 are used to select the line where Closed Caption information will be extracted when in 60Hz, and the bits 4, 5, 6, 7 are used to select the line where Closed Caption information will be extracted when in 50Hz Note: This information is used by microcontroller.

  • Page 25: White Balance

    White balance Note: The cut point doesn’t need adjustment, because it’s automatically made by the IC501. The white adjustment is already pre-adjusted and incised in the IC501 and, thus, its adjustment is not necessary. Otherwise, if it is necessary to change the temperature of the white pattern, proceed in the following way: a) Enter in the service mode.
  • Page 26 MECHANICAL EXPLDED VOESW 1/1...

  • Page 27: Color Name Table

    MECHANICAL MAIN PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 C1-577-221-801 GABINETE FRONTAL 2 C1-677-221-807 EMBLEMA AIWA 3 C1-677-221-801 TECLADO 4 C1-677-221-802 PAINEL FRONTAL 5 C1-677-221-803 TECLA POWER 6 C1-777-221-908 SUPORTE DO LED 7 C1-677-221-805 VISOR LED 8 C1-510-454-010...
  • Page 28 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 727105 Printed in Singapore...

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