Equipment information

Hitachi VT-F660E(U KN)(N AV) Video cassette recorder
Manufacturer:
Hitachi
Model: VT-F660E(U KN)(N AV)
Date: 1997
Category: Audio, Video, TV, Multimedia
Group: Video cassette recorder
Description:
Information:
                                    

These manuals are available for the above equipment:

Hitachi -- VT-F660E(U KN)(N AV) -- Service Manual
File name: Hitachi-8894-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 90
Size: 8.91 Mbytes (9347500 Bytes)
Language: english
Revision:
Manual-ID/Number: 4710E
Date: 01 May 1997
Quality: Scanned document, all readable.
Upload date:
MD5: 12609b570fef82c73bc8e08cd2d577c9
Downloads: 48 since 16 April 2017
Information:
CHAPTER 1
GENERALCONTENTS
INFORMATION
SPECIFICATIONS..........................................................
COMPARISON OF FEATURES....................................
COMPARISON OF MAIN CONTROL IC s.....................TIPS FOR
SERVICING...................................................TROUBLE
DISPLAY FUNCTION ..................................How to
Remove the Cassette when a
Malfunction Has Occurred in the M echanism ...............
SERVICE MANUAL ABBREVIATION L IS T ..................
LEADLESS (CHIP) COMPONENT IDENTIFICATION..Instructions on
Use and Description of New Functions
. 1-1
.
 1-2
. 1-4
. 1-5
.1-5
. 1-6
1-7
, 1-9
.
 1-12
CHAPTER 2
 DISASSEMBLY
- VT- F55XE/F640E/F645E/F650E -
1.Before Starting
Disassembly......................................
2.Disassembly M
ethod...................................................
Parts Hierarchy
Chart....................................................
Disassembly Procedure Diagrams...............................
2-1 .Top cover, front panel, rear panel, RJK board
and US-FL m echanism ..........................................
2-2.Cassette door and
buttons....................................
2-3.SHU or LED
board..................................................2-4.
Front frame and LCD board..................................
2-5.US mechanism/MAS board assembly
and N&A
board........................................................
2-6.Separation of MAS board from US mechanism
....2-7.Procedure to remove only the US m echanism ....-
VT-F660E -
1. Before Starting
Disassembly.......................................2.Disassembly
M
ethod....................................................Parts
Hierarchy
Chart.....................................................Disassembly
Procedure Diagrams................................
2-1 .Top cover, front panel, rear panel, bottom cover,
RJK board and US-FL m echanism
.......................2-2.Cassette door and
buttons.....................................
2-3.Front frame, LCJ and F S T
.....................................2-4. N&A b o a rd
...............................................................2-5.US
mechanism/MAS board assem
bly..................2-6.Separation of MAS board from US
mechanism ....
2-7.Procedure to remove only the US m echanism ....... 2-
Cautions When Reinstalling the US M echanism .............2-
CHAPTER 3
ELECTRIC CICUIT ADJUSTMENT AND
TROUBLE DISPLAY
Service
Position..................................................................
3-1
-VT-F55XE/F640E/F645E/F650E-
1.Servicing position during electrical adjustm
ent............3-1
2.Servicing positions when repairing and
checking
circuits..............................................................3-1
3. Be careful of electric sh o
cks..........................................3-1
Service
Position..................................................................
3-2
- VT-F660E -
1.Servicing position during electrical adjustm
ent............3-2
2.Servicing positions when repairing and
checking
circuits..............................................................3-2
3. Be careful of electric sh o
cks...........................................3-2
Electrical Circuit A djustm
ent.............................................. 3-3
1.Test equipment/jigs necessary for adjustment.............3-3
2.Cautions on adjustm
ent................................................. 3-3
3.Tips.for adjustm
ent........................................................ 3-3
4.Connections of test equipm
ent..................................... 3-3
Test Points and Adjustment p o in ts
................................... 3-4
5.Servo Circuit
Adjustments..............................................3-5
5-1 .Switching point adjustm
ent....................................... 3-5
5-2.X-value adjustm
ent.................................................... 3-5
5-3.Vertical jitter adjustm
ent............................................3-6
5-4.Forward slow tracking preset adjustm ent................3-6
5-5.Reverse slow tracking preset adjustm ent................ 3-6
6.Audio Circuit
Adjustment................................................3-7
6-1..Hi-Fi audio playback level c h e c k
..............................3-7
6-2.E-E audio level c h e c k
................................................ 3-7
List of Data in EEPROM and Initial
Settings.................... 3-8
List of Hidden
Commands.................................................. 3-8
1.Mode setting commands during adjustm ent................3-8
2.EEPROM initialization com m
ands................................ 3-8
Initial settings of
IC903(EEPROM).................................... 3-9
Caution When Replacing IC9()3(EEPROM)..................... 3-9
TROUBLE DISPLAY
FUNCTION..................................... 3-10
Troubleshooting According to Malfunction Display..........3-11
CHAPTER 4
 EXPLODED VIEWS
 ]
1.CABINET SE
:CTION...........................................................4-1
2.US-MECHAhJISM (TOP VIEW) SECTION...................... 4-3
3.US-MECHAr> JISM (BOTTOM VIEW) SECTION..............4-4
4.US-FL MECh HANISM
SECTION....................................... 4-5
CHAPTER 5
 REPLACEMENT PARTS LIST
 ]
1.MECHANISN/I PARTS
LIST............................................... 5-1
2.ELECTRICA L PARTS L IS T
..............................................5-2
CHAPTER 6
SCHEMATIC, CIRCUIT BOARD AND BLOCK
DIAGRAMS AND MICROPROCESSOR PIN
FUNCTION TABLES
INTERNAL WIRING DIAG RAM
...........................................6-1
CONNECTION DIAGRAM
................................................... 6-2
CIRCUIT
SCHEMATIC B0ARD
DIAGRAM
 DIAGRAM
LCD DISPLAY (LCD)
[FOR F55XE/F64XE/F650E].....................................
6-4 / 6-39
SHUTTLE SWITCH (SHU)
[FOR
F55XE/F650E]..................................................
6-5 / 6-38
LCJ/JACK (LCJ) [FOR F660E]
................................... 6-6 / 6-40
FRONT SHUTTLE (FST) [FOR F660E]..................... 6-7 / 6-41
CYLINDER
MOTOR..................................................... 6
-8 / -
CAPSTAN
MOTOR......................................................
6 -8 / -
MECHANISM SENSOR (M AS)...................................
6-9 / 6-28
LED (LED) [FOR F645E]
...........................................6-10 / 6-39
MAIN CONTROL (MAS)
............................................6-10 / 6-28
JACK (M
AS)................................................................6
-1 2/6 -28
SWITCHING REGULATOR(MAS)............................6 -1 6/6 -28
PRE AMP/FM A U D IO (M A S
).................................... 6-18 / 6-28
Y/CHROMA, LINEAR AUDIO (M A S )....................... 6-20
/ 6-28
A2 (N&A) [FOR V P S
]................................................. 6-23 / 6-36
NICAM & A2 (N&A) [EXCPET FOR V P S ]................6-24 / 6-36
REAR JACK
(RJK).....................................................
6-26 / 6-36
WAVEFORMS
SERVO
WAVEFORMS..........................................................
6-9
Y/CHROMA W
AVEFORMS................................................. 6-22
BLOCK DIAGRAMS
MAIN
CONTROL...................................................................
6-42
SERVO...................................................................................
6-44
VID E O
....................................................................................
6-46
AUDIO
....................................................................................
6-48
POWER..................................................................................
6-50
MICROPROCESSOR PIN FUNCTION TABLES................. 6-52
Hitachi-8894-Manual-Page-1-Picture
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