LG Electronics TL-AT130M manuals

80 pages7.1 Mb

2
CAUTION
- BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
TIME LAPSE VCR SERVICE MANUAL
- APRIL, 2006 Printed in Korea
- 2TABLE OF CONTENTS
  - SECTION 1
    - SUMMARY
  - SECTION 2
    - CABINET & MAIN FRAME
  - SECTION 3
    - ELECTRICAL
  - SECTION 4
    - MECHANISM
  - SECTION 5
    - REPLACEMENT PARTS LIST
- 3SPECIFICATIONS
  - 4FRONT
  - REAR
  - 5INDICATOR PANEL
  - VCR FUNCTION INDICATION
  - 6TERMINAL SIGNAL LEVELS
- 7CRITICAL PARTS REPLACING TIME TABLE
- CRITICAL PARTS DESCRIPTION
- 8SECTION2 CABINET & MAIN FRAME EXPLODED VIEWS
  - 1. Cabinet and Main Frame Section
  - Cabinet & Main Frame Section Parts list
  - 2. Packing & Accessory Section
  - NOTE
- 10SECTION2 CABINET & MAIN FRAME EXPLODED VIEWS
  - Packing Accessory Section Parts list
- 11ELECTRICAL ADJUSTMENT PROCEDURES
  - - 3-2
    - 121. Power Circuit(SMPS) (1) No 5.3 A (2) No 9V
      - No 5.3V
      - No 12V
    - (3) No 24 V
      - 3-3
    - 13(4) No 5.2 A (TO AVCP, BIAS) (5) No 10V
      - No 5.2V
      - No 10V
      - 3-4
    - 142. SERVO CIRCUIT (1) Video is unstable in PB mode
      - In PB mode
    - (2) Drum motor stops
      - When the drum moter stop
    - 15(3) Capstan motor stops
      - 3-5
        When the capstan motor stops
      - 3-6
    - 163. Y/C CIRCUIT (1) No Video in EE Mode
      - No Video in EE Mode
    - 17(2) When the Y(Luminance)signal doesnt appear on the screen in PB Mode.
      - 3-7
        Is 5V applied to the IC301 Pin 16, 40, 55, 58, 87?
        Replace the IC301.
      - 3-8
    - 18(3) When the C(Color) signal doesn't appear on the screen in PB Mode
      - Is 5V applied to the IC301 Pin 16, 40, 55, 58, 87?
      - Does the Color signal appear at the IC301 Pin 71?
    - (4) When the Video signal doesn't appear on the screen in REC Mode.
      - Is the EE signal normal?
      - Does the RF signal appear at the IC301 Pin 12?
      - 3-9
    - 194. AUDIO CIRCUIT (1) No sound in EE Mode
      - No sound in EE Mode. No sound.
      - Replace the IC301
    - (2) No sound in PB MODE
      - No sound in PB Mode. No sound.
      - 3-10
    - 20(3) No sound in REC Mode.
      - NO sound in REC Mode. Sound is not recorded.
      - Check the line of the 5V Power Circuit.
      - Replace the FL401 or the Q405.
      - 3-11
    - 215. SYSTEM/KEY CIRCUIT (1) AUTO STOP
      - *Caution : Auto stop can occur because Grease or Oil is dried up
      - Auto Stop
    - (2) No cassette tape loading
      - No cassette tape loading Is there REG. 12V at PMCQ1 Pin8?
    - 22(2) No F.OSD display.
      - 3-12
    - (3) No Key display
      - No F.OSD display.
      - No OSD display.
      - No Key display Is there 5.2VA at IC501 Pin79, 80, 81?
      - Check peripheral circuit and replace X501
    - 6. OSD CIRCUIT (1) No OSD display.
      - Check the signal between IC501 Pin47 and V.out Jack.
  - DECK MECHANISM PARTS LOCATIONS
  - DECK MECHANISM DISASSEMBLY
  - DECK MECHANISM ADJUSTMENT
  - MAINTENANCE/INSPECTION PROCEDURE
  - MECHANISM TROUBLESHOOTING GUIDE
  - EXPLODED VIEWS
- 37SECTION 4 MECHANISM
  - CONTENTS
  - 38DECK MECHANISM PARTS LOCATIONS
    - 4-1
    - Top View
      - T:Top, B:Bottom
      - Part Fixing Type
    - Bottom View
      - NOTE : When reassembly perform the procedure in the reverse order.
        Fig- ure
        Vi- ew
      - 4-2
      - (Fig. A-1-1)
    - 391. Drum Assembly (Fig. A-1-1)
      - 1-1. Drum Motor
    - Fig. A-1
      - (Fig. B-1)
    - 40Fig. A-2
      - 4-4
    - 412. Plate Top (Fig. A-2-1)
    - 3. Holder Assembly CST (Fig.A-2-2)
    - 4. Opener Door (Figure. A-2-3)
    - 5. Bracket Assembly L/D Motor (Fig. A-2-4)
    - 6. Gear Assembly Rack F/L (Fig. A-2-5)
    - 7. Arm Assembly F/L (Fig. A-2-6)
    - 8. Lever Assembly S/W(Fig. A-2-7)
      - 4-5
    - 429. Arm Assembly Cleaner (Fig. A-3-1)
    - 10. Head F/E (Fig. A-3-2)
    - 11. Base Assembly A/C Head (Fig. A-3-3)
    - Fig. A-3
      - (Fig. A-3-1)
      - (Fig. A-3-3) (Fig. A-3-2)
    - 43Fig. A-4 12. Brake Assembly T (Fig. A-4-1)
    - 13. Brake Assembly RS (Fig. A-4-2)
    - 14. Arm Assembly Tension (Fig. A-4-3)
    - 15. Reel S / Reel T (Fig. A-4-4)
      - 4-7
    - 44Fig. A-5 16. Base Assembly P4 (Fig. A-5-1)
    - 17. Opener Lid (Fig. A-5-2)
    - 18. Arm Assembly Pinch (Fig. A-5-3)
    - 19. Lever T/up (Fig. A-5-4)/ Arm T/up (Fig. A-5-5)
      - (Fig. A-5-2)
      - (Fig. A-5-4)
      - (Fig. A-5-5)
      - (Fig. A-5-1)
      - (Fig. A-5-3)
      - 4-9
    - 46Fig. A-7 24. Gear Drive (Fig. A-7-1)/ Gear Cam (Fig. A-7-2)
    - 25. Gear Sector (Fig. A-7-3)
    - 26. Plate Slider (Fig. A-7-4)
    - 27. Lever Tension (Fig. A-7-5)
    - 28. Lever Spring (Fig. A-7-6)
      - (Fig. A-7-4)
      - (Fig. A-7-1)
      - (Fig. A-7-5) (Fig. A-7-6)
      - (Fig. A-7-2) (Fig. A-7-3)
      - 4-10
      - (Fig. A-8-1)
      - (Fig. A-8-4)
      - (Fig. A-8-3)
    - 47Fig. A-8 29. Gear Assembly P2 (Fig. A-8-1)/ Gear Assembly P3 (Fig. A-8-2)
    - 30. Base Assembly P2 (Fig. A-8-3)/ Base Assembly P3 (Fig. A-8-4)
      - (Fig. A-8-2)
    - 48Fig. A-9 31. Base Loading (Fig. A-9-1)
    - 32. Base Tension (Fig. A-9-2)
    - 33. Arm Assembly Idler (Fig. A-9-3)
    - 49 Tools and Fixfures for Service
      - Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected.
      - 501. Mechanism Alignment Position Check
        4-14
        Cassette Torque Meter (SRK-VHT-303) Torque Gauge (600g.cm ATG)
      - 513. Checking Torque
        Test Equipment/ Fixture
        Checking Method
        Fig. C-3-2Fig. C-3-1
        Test Conditions (Mechanism Condition)
      - 524.Guide Roller Height Adjustment
      - 535. Audio/Control (A/C) Head Adjustment
        4-17
        Purpose: To obtain compatibility with the other VCR(VCP) Models.
        Connection Diagram
        Fig. C-5-4
      - 546. X-Value Adjustment
        Adjustment Procedure
        5-3. Precise Adjustment (Azimuth adjustment)
        Adjustment Procedure
        Adjustment Diagram
        4-18
        Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum.
        Checking Procedure
        8-2. Checking for tape curling or jamming
      - 557. Adjustment after Replacing Drum Assembly (Video Heads)
        Checking/Adjustment Procedure
        Connection Diagram Waveform
        Fig. C-7
      - 8. Check the Tape Travel after Reassembling Deck Assembly.
        8-1. Checking Audio and RF Locking Time during playback and after CUE or REV (FF/REW)
        Checking Procedure
        NOTES:
        4-19
      - 561. Check before starting repairs
        Fig. C-9-3 Tape Transport System
        Fig. C-9-2 Bottom View
        * No. (1)~(12) Indicates the Tape Path to be traveled from Supply Reel to Take-up Reel.
        Fig. C-9-1 Top View
        4-20
      - 572. Required Maintenance
      - 3. Scheduled Maintenance
      - 4. Supplies Required for Inspection and Maintence
      - 5. Maintenance Procedure
        5-1) Cleaning
        NOTES:
        Fig. C-9-4
        584-21
        5-2) Greasing
        NOTE:Greasing Points
    - 651. Front Loading Mechanism Section
    - 662. Moving Mechanism Section(1)
      - OPTIONAL PART
        4-29
        A01
        A03
        A04
    - 673. Moving Mechanism Section(2)
      - OPTIONAL PART
        4-30
        A11
        A12
        - 5-1 -
- 68SECTION 5. REPLACEMENT PARTS LIST
  - NSP : Not Service Part
  - MECHANICAL SECTIONRUN DATE : 2004.05.01
    - - 5-2 -
  - 69Packing & Accessory Section
  - Cabinet & Main Frame Section
    - 70- 5-3 -
      - Electrecal section
    - 71- 5-4 -
    - 72- 5-5 -
    - 73- 5-6 -
    - 74- 5-7 -
    - 75- 5-8 -
    - 76- 5-9 -
    - 77- 5-10 -
    - 78- 5-11 -
    - 79- 5-12 -
    - 80- 5-13 -