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Aiwa TV-AN2110 Service Manual

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TV-AN2110
NH

SERVICE MANUAL

COLOR TELEVISION
• This Service Manual contains the additional information
"NOTICES BEFORE REPAIRING", "DISASSEMBLY INSTRUCTIONS"
and "ADJUSTMENT" for the model TV-AN2110 (NH).
If requiring the other information, see Service Manual of
TV-AN2110 (NH), (S/M Code No. 09-99B-419-1R1).
S/M Code No. 09-002-419-1S1

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Summary of Contents for Aiwa TV-AN2110

  • Page 1: Service Manual

    COLOR TELEVISION • This Service Manual contains the additional information “NOTICES BEFORE REPAIRING”, “DISASSEMBLY INSTRUCTIONS” and “ADJUSTMENT” for the model TV-AN2110 (NH). If requiring the other information, see Service Manual of TV-AN2110 (NH), (S/M Code No. 09-99B-419-1R1). S/M Code No. 09-002-419-1S1...

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

  • Page 3: Rear Cabinet Removal

    DISASSEMBLY INSTRUCTIONS 1. REAR CABINET REMOVAL Front cabinet (1) Remove four screws 1 and three screws 2, then remove the rear cabinet in the direction of the arrow. (See Figure1-1) Rear cabinet Figure 1-1 2. HIGH-VOLTAGE CAP (ANODE CAP) REMOVAL Anode cap 2-1.
  • Page 4 (5) Push the anode cap with your thumb in the direction of arrow 1 as shown in the figure, then lift the cap in the direction of arrow 2 to release the hook on one side. (See Figure 2-3) Anode cap Hook Hook Figure 2-3...
  • Page 5 (3) Eliminate twisting, etc. of the high-voltage cable and arrange it so that no twisting occurs. (See Figure 3-3) High-voltage cable Anode cap Caution : If the cable is not arranged correctly, the anode cap could turn and cause an installation defect. Figure 3-3 (4) Turn over the rubber cap symmetrically on the left and right.
  • Page 6 (6) Apply the hook on one side to the anode button as shown on the figure. (See Figure 3-6) Caution : Check that the hook is held securely. (7) Apply the hook on the other side to the anode button as shown in Figure 3-7.
  • Page 7 4. NK C.B REMOVAL Front cabinet (1) Disconnect CN903 (CRT GND). (2) Disconnect CN901, CN902 (3) Remove the NK C.B. in the direction of arrow 1. CN801 (See Figure 4-1) (Power Cord) 5. MAIN C.B REMOVAL CN802 (Degauss (1) Remove connector (CN401). cord) (2) Remove connector (CN801).
  • Page 8 ADJUSTMENT 1. CRT Adjustment Set-Up For Adjustment Because the video signal output from a pattern generator is used as 1-1. Precautions the adjustment signal input during adjustment, the video signal output from the pattern generator must conform with the (1) Receive the white raster signal, and then perform aging for at specifications.
  • Page 9 (2) Beam convergence adjustment (4-pole magnet) (3) Beam convergence adjustment (6-pole magnet) With a 4-pole magnet align the G beam with the already aligned Align the R beam with the B beam. The G beam does not R/B beam. move with this adjustment. (magenta) (magenta) (white)
  • Page 10 1-3. Beam Landing Adjustment As there is occurrence of convergence distortion after completing the landing adjustments, be sure to carry out (1) Receive the green raster signal from the pattern generator. convergence adjustments. (2) Loosen the magnet lock screw, and shift the magnet assembly backward (toward the neck).
  • Page 11 1-4. Beam Center Convergence Adjustment 1-5. The Surrounding Convergence Adjustment Perform this adjustment after completion of adjustment 1-4. Make adjustments on the convergence with 4-pole and 6-pole (1) Shake the deflecting yoke up, down to the right and left, and magnets.

  • Page 12: Electrical Adjustment

    Electrical Adjustment J403 BT301 TP102 TP101 (IF) (RF AGC) L201 J401 TP302 TU101 L205 IC301 IC405 J402 TP202 TP201 (AFT) IC403 TP203 IC407 (FM DET) C332 C213 T601 (FBT) T601 (FBT) FORCUS SCREEN R903 R902 TP902 S901 – 12 –...
  • Page 13 1. Menu Screen Adjustment • Operate after inputting the following initial figures when replacing EEP ROM. • Check the condition and adjust the area where the general repair is carried out. Center 1-1. H POS Horizontal Positioning Adjustment / Adjustment Menu Screen : PAGE 1 PAGE 1-1 Input signal : Crosshatch...

  • Page 14: White Balance Adjustment

    1-4. OSD POS OSD Positioning Adjustment / Adjustment Menu Screen : PAGE 1 PAGE 1-4 Input signal : Not specified • Using the volume keys on the jig remote controller, adjust + marks on both side to be an equal distance from the edge of the screen. A=B (Fig. 1-4) OSD POS Fig.1-4 1-5.

  • Page 15: Drive Adjustment

    Drive Adjustment : 2-3. Using the volume keys on the jig remote controller, adjust the figure of 4. G DRIVE to more than 200 until the screen becomes a greenish color. 2-4. Reduce the figure to the point where the greenish color disappears. 2-5.
  • Page 16 3-3. SUB TINT Sub-tint Adjustment / Adjustment Menu Screen : PAGE 3-3 Input signal : Color bar VIDEO IN Measuring instrument : Oscilloscope Pattern generator/Leader : LCG-404 Test point : TP302/BT301 (wire connector) PIN 3 1. Connect oscilloscope to TP302. 2.

  • Page 17: Tuner Adjustment

    5. Tuner Adjustment: Perform the following adjustment in case of replacing any adjustment element during the repair. Proceed with the following adjustments as well as in the adjustment menu screen. If those adjustments are not completed on both sides, the required adjustment will not be registered even thought the adjustment has been processed in the adjustment menu screen.
  • Page 18 Setting Of IIC Bus Data This model is designed to adjust most parts of the image projection and deflection by using the jig remote controller. Preparations: • Modify the hidden keys on the RC-6VT06 jig remote controller (TV-C142/86-LB4-951-010) so that they can easily be pressed. 2 keys to be modified (Refer to the below illustration) Starting service mode: Hidden key “TEST”:...
  • Page 19 3. Display of “CRT ON” accumulated hours The CRT usage time is accumulated on an hourly basis and is displayed in hexadecimal figures. Sample calculation of displayed hexadecimal figures : AFT OK 1234 H IN-ST * The display will be reset to 0000H when the accumulated hours exceed 7FFFH(32768 hours).
  • Page 20 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9301978 Printed in Singapore...

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