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Aiwa TV-SA2155 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. 09-003-431-4T1).
• This Service Manual does not include "DISASSEMBLY INSTRUCTIONS" and
"ADJUSTMENT". These items will be issued in the next Supplement.
TV-SA2155
S/M Code No. 09-005-431-4R1
KE

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   Summary of Contents for Aiwa TV-SA2155

  • Page 1: Service Manual

    TV-SA2155 SERVICE MANUAL COLOR TELEVISION • This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-003-431-4T1). • This Service Manual does not include “DISASSEMBLY INSTRUCTIONS” and “ADJUSTMENT”. These items will be issued in the next Supplement.

  • 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: 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 3: Specifications

    SPECIFICATIONS Tuner System Frequency synthesized tuner TV System PAL (B/G, H, D/K) SECAM (B/G, D/K, K1) 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 4

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-010-404-080 CAP, ELECT 4.7-50V C100 87-010-384-080 CAP,E 100-25 SME 8A-JEH-651-010 IC,TMP87CP38N C101 87-010-404-080 CAP, ELECT 4.7-50V 87-A21-133-080 IC,BMR-0101D C102 87-018-134-080 CAPACITOR,TC-U 0.01-16 87-A91-538-010 RCR UNIT,SBX1981-72P C103 87-010-384-080 CAP, ELECT 100-25V...

  • Page 5

    REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C609 87-010-386-080 CAP,E330-25 SME CNA903 8Z-JB9-661-010 CONN ASSY,10P MAIN-AUDIO C610 87-016-217-080 CAP,E 4.7-160 87-A40-422-010 LED,SLP-581D-51 Y-G/R C611 87-A10-043-010 CAP,M/P 0.56-200 J PM D801 87-A90-965-010 VRIS,TNR15G471K C613 87-A10-625-090 CAP,M/P 8200P-1.25KJ F801 87-035-458-010 FUSE,4A 250V T W/C...

  • Page 6

    REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-A90-712-080 SW,TACT EVQ11L07K R402 87-025-424-080 RES,M/F 10K 1/6W F 87-A90-712-080 SW,TACT EVQ11L07K R404 87-025-380-080 RES,M/F 15K-1/6W F S501 87-A90-567-010 SW,LVR 4-1-3 EVQRAAL10 R405 87-025-381-080 RES,M/F 18K-1/6W F S801 87-A91-410-010 SW,AC PUSH 1-1-1 ESB92SH1B SWF201...

  • Page 7

    REF. NO. PART NO. KANRI DESCRIPTION CN702 87-A60-720-010 CONN,6P JL-R L701 87-005-461-080 COIL,1UH J FLR50 L702 87-005-461-080 COIL,1UH J FLR50 L703 87-005-473-080 COIL,10UH J FLR50 L705 87-005-473-080 COIL,10UH J FLR50 L707 87-005-473-080 COIL,10UH J FLR50 L708 87-005-485-080 COIL,100UH J FLR50 X701 87-A70-199-080 VIB,XTAL 18.432MHZKEY C.B...

  • Page 8

    TRANSISTOR ILLUSTRATION E C B E C B S D G E C B 2SA950Y 2SJ460 2SC3467D/E 2SA1175FE 2SA1015GR 2SK2541 2SC2785FE DTC144ES 1. SENSE 2. COLLECTOR 3. GROUND B C E 1 2 3 E C B E C B 2SD2333LS SE115N 2SC3779D/E...

  • Page 9

    IC BLOCK DIAGRAM – 9 –...

  • Page 10

    – 10 –...

  • Page 11

    WIRING – 1 (MAIN) – 11 –...

  • Page 12

    SCHEMATIC DIAGRAM - 1 (MAIN) – 12 –...

  • Page 13

    WIRING – 2 (AUDIO) – 13 –...

  • Page 14

    SCHEMATIC DIAGRAM - 2 (AUDIO) – 14 –...

  • Page 15

    WIRING – 3 (NK) – 15 –...

  • Page 16

    SCHEMATIC DIAGRAM - 3 (NK) – 16 –...

  • Page 17

    WIRING – 4 (NICAM) – 17 –...

  • Page 18

    SCHEMATIC DIAGRAM - 4 (NICAM) – 18 –...

  • Page 19

    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 20

    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 21

    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 – 21 –...

  • Page 22

    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 23

    IC, TB1240AN Pin No. Pin Name Description AFT OUT The terminal for AFT output and self-adjust output. A OUT Audio output pin. (Not used) IF VCC – VCC of PIF circuit. SIF IN SIF input pin. IF GND – GND of PIF circuit. IF IN IF signal input.

  • Page 24

    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 25

    IC, MSP3417D Pin No. Pin Name Description – Test pin (not used). – Not connected. D_CTR_OUT1 Digital control output 1 (not used). D_CTR_OUT0 Digital control output 0 (not used). ADR_SEL C bus address select. STANDBYQ Standby (low active). C_CL C clock. C_DA C data.

  • Page 26

    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. Q551 139.0 Q108...

  • Page 27

    REF NO. REF NO. Q802 114.7 92.5 Q911 REF NO. REF NO. Q803 Q912 IC1, TMP87CP38N REF NO. PIN NO. VOLT (V) Q804 REF NO. Q805 REF NO. Q806 10~12 REF NO. Q901 REF NO. Q902 REF NO. Q903 21~25 REF NO.

  • Page 28

    IC3, SBX1981-72P IC301, TB1240AN IC302, TA1275AZ PIN NO. VOLT (V) PIN NO. VOLT (V) PIN NO. VOLT (V) IC4, KS24C041I PIN NO. VOLT (V) IC101, TC4052BP PIN NO. VOLT (V) 9~10 11~15 IC401, MM1454XD PIN NO. VOLT (V) IC301, TB1240AN PIN NO.

  • Page 29

    IC701, MSP3417D IC403, M62420SP IC410, AN5277 PIN NO. VOLT (V) PIN NO. VOLT (V) PIN NO. VOLT (V) 23.1 11.4 9~11 9~10 11~12 13~14 24.3 11.1 11.6 19~20 18~19 IC501, LA7832 21~22 PIN NO. VOLT (V) 24~25 24.0 IC404, LA6458SLL PIN NO.

  • Page 30

    IC803, NJM7809FA PIN NO. VOLT (V) 11.7 IC804, NJM7805FA PIN NO. VOLT (V) IC901, TC4052BP PIN NO. VOLT (V) 9~10 11~15 IC902, TC4052BP PIN NO. VOLT (V) 9~10 – 30 –...

  • Page 31

    MECHANICAL EXPLODED VIEW 1 / 1 WIRE ASSY, CRT GND 21 P.C.B P.C.B P.C.B TV-SA2155 KEJLCM (FileName:EXP.EPS) 12/3/13 AJB-16(G) – 31 –...

  • Page 32: Color Name Table

    MECHANICAL PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION 1 87-054-086-010 BADGE,AIWA 52.5 2 8A-JBG-002-010 PANEL,MAIN SA2155 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 33

    2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9620450 0251431 Printed in Singapore...

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