Equipment information

Aiwa HV-FX780 Video cassette recorder
Manufacturer:
Aiwa
Model: HV-FX780
Date:
Category: Audio, Video, TV, Multimedia
Group: Video cassette recorder
Description:
Information:
                                    

These manuals are available for the above equipment:

Aiwa -- HV-FX780 -- Service Manual
File name: Aiwa-1818-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 67
Size: 5.50 Mbytes (5762395 Bytes)
Language: english
Revision:
Manual-ID/Number: 09-999-335-6R1 and/or 920074
Date:
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: 9b853e01aa5d8b5bbaf839c82e539bf0
Downloads: 338 since 26 December 2009
Information:
This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
(S/M Code No.09-999-335-6T1).

                                                                     TABLE OF CONTENTS
                                                                                       16. Base Assembly P4 .................................................... 54
SPECIFICATIONS ............................................................ 3
                                                                                       17. Opener Lid ................................................................ 54
ACCESSORIES LIST ....................................................... 3
                                                                                       18. Arm Assembly T/up ................................................... 54
DISASSEMBLY INSTRUCTIONS ..................................... 4
                                                                                       19. Arm Assembly Pinch ................................................. 54
SERVICE POSITION ........................................................ 5
                                                                                       20. Belt Capstan/Motor Capstan ..................................... 55
VCR TEST TAPE INTERCHANGEABILITY TABLE ........ 6
                                                                                       21.Clutch Assembly D33 ................................................. 55
ELECTRICAL MAIN PARTS LIST .............................. 7 ~ 8
                                                                                       22. Lever F/R .................................................................. 55
TRANSISTOR ILLUSTRATION ........................................ 8
                                                                                       23. Gear Assembly H-UP/D or Gear Assembly UP/D ..... 55
WIRE HARNESS DIAGRAM ............................................ 9
                                                                                       24. Bracket Assembly Jog ............................................... 56
BLOCK DIAGRAM ................................................. 10 ~ 16
                                                                                       25. Guide Rack F/L, Gear Rack F/L ................................ 56
SCHEMATIC DIAGRAM
                                                                                       26. Brake Assembly Capstan .......................................... 56
1. POWER SECTION .............................................. 17 ~ 18
                                                                                       27. Gear Drive/Gear Cam/Gear Connector .................... 57
2. AUDIO/VIDEO SECTION .................................... 19 ~ 20
                                                                                       28. Bracket Assembly L/D motor ..................................... 57
3. SYSTEM CONTROL/SERVO/OSD SECTION) .. 23 ~ 24
                                                                                       29. Gear Sector ............................................................... 58
4. TUNER SECTION ....................................................... 25
                                                                                       30. Base Tension/Plate Slider/Lever Tension .................. 58
5. FRONT 1 C.B .............................................................. 29
                                                                                       31. Gear Assembly P3/Gear Assembly P2 ..................... 59
6. FRONT 2 C.B .............................................................. 29
                                                                                       32. Base Assembly P3/Base Assembly P2 ..................... 59
WAVEFORM
                                                                                       33. Arm Assembly Idler Jog or Arm Assembly Idler ........ 59
1. VIDEO SECTION ........................................................ 21
                                                                                       DECK MECHANISM ADJUSTMENT
2. SERVO/OSD SECTION .............................................. 22
                                                                                       Tools and Fixtures for service ......................................... 60
FL DISPLAY .................................................................... 26
                                                                                       1. Mechanism Alignment Position Check ........................ 61
WIRING
                                                                                       2. Preparation for Adjustment ......................................... 62
1. MAIN C.B SECTION ........................................... 27 ~ 28
                                                                                       3. Checking Torque ......................................................... 62
2. FRONT 1 C.B SECTION ............................................. 30
                                                                                       4. Guide Roller Height Adjustment .................................. 63
3. FRONT 2 C.B SECTION ............................................. 30
                                                                                        4-1. Preliminary Adjustment .......................................... 63
IC DESCRIPTION ................................................... 31 ~ 36
                                                                                        4-2. Precise Adjustment ................................................ 63
IC BLOCK DIAGRAM ..................................................... 37
                                                                                       5. Audio/Control (A/C) Head Adjustment ......................... 64
ADJUSTMENT ........................................................ 38 ~ 39
                                                                                        5-1. Preliminary Adjustment .......................................... 64
MECHANICAL EXPLODED VIEW 1/1 ........................... 40
                                                                                        5-2. Confirm that the Tape Path smoothly between the
MECHANICAL MAIN PARTS LIST 1/1 ......................... 40
                                                                                             Take-up Guide and Pinch Roller ............................ 65
MECHANISM EXPLODED VIEW 1/3, 2/3, 3/3 ..... 42,44,46
                                                                                        5-3. Precise Adjustment (Azimuth Adjustment) ............. 65
MECHANISM MAIN PARTS LIST 1/3, 2/3, 3/3 .... 43,45,47
                                                                                       6. X-Value Adjustment ..................................................... 65
DECK MECHANISM PARTS LOCATIONS
                                                                                       7. Adjustment after Replacing Drum Assembly
Top View .......................................................................... 48
                                                                                          (Video Heads) ............................................................. 66
Bottom View .................................................................... 48
                                                                                       8. Check the Tape Travel after Reassembling
DECK MECHANISM DISASSEMBLY
                                                                                          Deck Mechanism ......................................................... 66
 1. Drum Assembly ......................................................... 49
                                                                                        8-1. Checking Audio and RF Locking Time
 2. Plate Assembly Top ................................................... 51
                                                                                              during Playback and after CUE or REV ................ 66
 3. Holder Assembly CST ............................................... 51
                                                                                        8-2. Check for Tape Curling or Jamming ....................... 66
 4. Guide CST ................................................................ 51
                                                                                       MAINTENANCE/INSPECTION PROCEDURE
 5. Bracket Side (L)/Bracket Assembly Door .................. 51
                                                                                       1. Check before starting Repairs .................................... 67
 6. Arm Assembly F/L ..................................................... 51
                                                                                       2. Required Maintenance ................................................ 68
 7. Lever Assembly S/W ................................................. 51
                                                                                       3. Scheduled Maintenance ............................................. 68
 8. Arm Assembly Cleaner .............................................. 52
                                                                                       4. Supplies Required for Inspection and Maintenance ... 68
 9. Head F/E ................................................................... 52
                                                                                       5. Maintenance Procedure .............................................. 68
10. Base Assembly A/C Head ......................................... 52
                                                                                        5-1. Cleaning ................................................................. 68
11. Brake Assembly S ..................................................... 53
                                                                                        5-2. Greasing ................................................................ 69
12. Brake Assembly T ..................................................... 53
                                                                                       MECHANISM TROUBLESHOOTING GUIDE
13. Arm Assembly Tension .............................................. 53
                                                                                       1. Deck Mechanism ........................................................ 70
14. Reel S & Reel T ........................................................ 53
                                                                                       2. Front Loading Mechanism .......................................... 73
15. Support CST ............................................................. 54
Aiwa-1818-Manual-Page-1-Picture
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