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Aiwa TV-A2115 Service Manual

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SERVICE MANUAL
COLOR TELEVISION
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-003-429-9T1).
• This Service Manual does not include "DISASSEMBLY INSTRUCTIONS" and
"ADJUSTMENT". These items will be issued in the next Supplement.
TV-A2115
S/M Code No. 09-005-429-9R1
KE

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Summary of Contents for Aiwa TV-A2115

  • Page 1 TV-A2115 SERVICE MANUAL COLOR TELEVISION • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-003-429-9T1). • This Service Manual does not include “DISASSEMBLY INSTRUCTIONS” and “ADJUSTMENT”. These items will be issued in the next Supplement.

  • Page 2: Specifications

    SPECIFICATIONS Tuner System Frequency synthesized tuner TV System PAL (B/G, D, K) SECAM (B/G, D/K, K1) NTSC Channel Coverage VHF: E2 to E12, R1 to R12 UHF: 21 to 69 CATV: S1 to S41 Program Memory 100 TV stations Antenna Input 75 ohms, unbalanced Picture Tube 21"...

  • Page 3: 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: 6.0 to 10 MΩ (500 V/s) wire on the AC1 side, including the power supply Voltage-withstand: 1.0 KV for 1 minute cord.

  • Page 4: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C101 87-010-404-080 CAP, ELECT 4.7-50V C102 87-018-134-080 CAPACITOR,TC-U 0.01-16 8A-JEH-651-010 IC,TMP87CP38N C103 87-010-384-080 CAP, ELECT 100-25V 87-A21-133-080 IC,BMR-0101D C104 87-018-134-080 CAPACITOR,TC-U 0.01-16 87-A91-538-010 RCR UNIT,SBX1981-72P C105 87-010-384-080 CAP, E 100-25 SME...
  • Page 5 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C609 87-010-386-080 CAP,E330-25 SME D801 87-A90-965-010 VRIS,TNR15G471K C610 87-016-217-080 CAP,E 4.7-160 F801 87-035-458-010 FUSE,4A 250V T W/C C611 87-A10-043-010 CAP,PP 0.56-200 PH 87-003-320-080 F-BEAD,FBR07HA121NB C613 87-A10-625-090 CAP,M/P 0.0082-1250 J FB501 87-003-320-080 F-BEAD,FBR07HA121NB...
  • Page 6 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION THP801 87-A90-759-010 POS-THMS,PTH451C272BF300N270 C479 87-010-247-080 CAP, ELECT 100-50V TU101 87-A91-495-010 TU UNIT, ENV59D58G3-38.0MHZ C480 87-010-388-080 CAP ELECT 1000-25V SME 87-030-300-080 VIB,XTAL 8.00MHZ C481 87-010-388-080 CAP ELECT 1000-25V SME X301 87-A70-054-080 VIB,XTAL 4.43MHZ AQC-1018...

  • Page 7: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B E C B S D G E C B 2SA950 2SJ460 2SC3467 2SA1175 2SA1015 2SK2541 2SC2785 DTC144ES 1. SENSE 2. COLLECTOR 3. GROUND B C E 1 2 3 E C B E C B 2SD2333 SE115N 2SC3779...

  • Page 8: Wiring - 1 (Main)

    WIRING - 1 (MAIN) – 8 –...

  • Page 9: Schematic Diagram - 1 (Main)

    SCHEMATIC DIAGRAM - 1 (MAIN) – 9 –...

  • Page 10: Wiring - 2 (Audio)

    WIRING - 2 (AUDIO) – 10 –...

  • Page 11: Schematic Diagram - 2 (Audio)

    SCHEMATIC DIAGRAM - 2 (AUDIO) – 11 –...
  • Page 12 WIRING - 3 (NK) – 12 –...

  • Page 13: Schematic Diagram - 3 (Nk)

    SCHEMATIC DIAGRAM - 3 (NK) – 13 –...

  • Page 14: Ic Block Diagram

    IC BLOCK DIAGRAM – 14 –...
  • Page 15 – 15 –...
  • Page 16 IC DESCRIPTION IC, TMP87CP38N Pin No. Pin Name Description – Connected to GND. POWER During standby mode, "H" level is inserted to switch off H deflection & high voltage. SIF A SOUND IF switch A. SIF B SOUND IF switch B. BBE select.
  • Page 17 IC, TB1240AN Pin No. Pin Name Description AFT OUT The terminal for AFT output and self-adjust output. A OUT Audio output pin. IF VCC – VCC of PIF circuit. SIF IN SIF input pin. (Not used) IF GND – GND of PIF circuit. IF IN IF signal input.
  • Page 18 Pin No. Pin Name Description SYNC IN Input of the synchronous separation circuit. BLK DET – The terminal to be connected with an Black Det filter. C IN Input of chroma signals. Y/C VCC – VCC of Y/C circuit. IFDET OUT Composite video signal and SIF signal detected in IF circuit.

  • Page 19: Voltage Chart

    VOLTAGE CHART REF NO. REF NO. Q404 REF NO. REF NO. Q407 REF NO. REF NO. Q101 Q408 11.1 REF NO. REF NO. Q409 Q104 REF NO. REF NO. Q105 Q414 REF NO. REF NO. Q106 Q501 REF NO. REF NO. Q108 Q554 REF NO.
  • Page 20 REF NO. REF NO. Q802 114.7 92.5 Q911 REF NO. REF NO. Q803 Q912 REF NO. Q804 IC1, TMP87CP38N REF NO. PIN NO. VOLT (V) Q805 REF NO. Q806 REF NO. Q901 10~12 REF NO. Q902 REF NO. Q903 REF NO. Q904 21~25 REF NO.
  • Page 21 IC2, BMR-0101D IC301, TB1240AN IC302, TA1275AZ PIN NO. VOLT (V) PIN NO. VOLT (V) PIN NO. VOLT (V) IC3, SBX1981-72P PIN NO. VOLT (V) IC4, KS24C041I PIN NO. VOLT (V) IC401, MM1454XD PIN NO. VOLT (V) IC301, TB1240AN PIN NO. VOLT (V) 9~13 IC402, NJM2150...
  • Page 22 IC403, M62420SP IC410, AN5277 IC803, NJM7809FA PIN NO. VOLT (V) PIN NO. VOLT (V) PIN NO. VOLT (V) 11.7 23.1 11.4 9~10 IC804, NJM7805FA 11~12 PIN NO. VOLT (V) 24.3 11.1 11.6 18~19 IC501, LA7832 IC901, TC4052BP PIN NO. VOLT (V) PIN NO.
  • Page 23 WAVEFORM AC : 220V INPUT : TUNER PAL-COLOR BAR AUDIO 1kHz USER CONTROL : ALL RESET MAIN C.B IC301 PIN 19 (GOUT) IC301 PIN 30 (FBP IN) 1 V/div 2 V/div 10 µs/div 20 µs/div IC301 PIN 23 (V NFB) IC301 PIN 32 (H OUT) 1 V/div 1 V/div...
  • Page 24 IC1 PIN27 (VD) Q910 BASE 1 V/div 0.5 V/div 20 µs/div 5 ms/div Q601 BASE Q101 COLLECTOR 1 V/div 0.1 V/div 20 µs/div 20 µs/div AUDIO C.B T601 PIN 1 (COLLECTOR) IC401 PIN 1 (RIN) 20 V/div 1 V/div 20 µs/div 500 µs/div IC1 PIN 26 (HD) IC402 PIN 7 (OUTPUT (A))
  • Page 25 IC403 PIN 14 (OUT2) IC410 PIN 7 (CH2 OUT) 1 V/div 2 V/div 500 µs/div 500 µs/div NK C.B IC409 PIN 15 (IN2) Q552 COLLECTOR 1 V/div 50 V/div 20 µs/div 500 µs/div – 25 –...

  • Page 26: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 1 / 1 WIRE ASSY, CRT GND 21 P.C.B SPR-E, EARTH P.C.B P.C.B TV-A2115 KEJL6CM (FileName:EXP.EPS) 125/1 AJB-K – 26 –...

  • Page 27: Mechanical Parts List

    MECHANICAL PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION 1 87-054-087-010 BADGE,AIWA 40 2 8A-JBK-002-010 PANEL,MAIN A2115 3 8Z-JBR-005-010 LENS,RC 4 8Z-JBR-006-010 LENS,LED 5 8Z-JBR-004-010 KEY,MAIN 6 8A-JBG-001-010 CABI,FR BL 7 8Z-JB4-695-010 AC CORD SET,EH BLK 8 8Z-JB4-620-010...
  • Page 28 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9301978 0251431 Printed in Singapore...

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