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 339 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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