Attrezzatura informazioni:

Hitachi VT-FX751 E/FX752E(VPS) Videoregistratore
Produttore:
Hitachi
Modello: VT-FX751 E/FX752E(VPS)
Data: 1998
Categoria: Audio, Video, TV, Multimedia
Gruppo: Videoregistratore
Descrizione:
Informazioni:
                                    

Questi manuali sono disponibili per l'attrezzatura di cui sopra:

Tipo manuale: Manuale di servizio Hitachi-8897-Manual-Page-1-Picture
Pagine: 88
Dimensioni: 14.74 Mbytes (15460301 Bytes)
Lingua: Inglese
Revisione:
Manual-ID/Number: 4806E
Data: 01 giugno 1998
Qualità: Documento scansionato, tutto leggibile.
Data di caricamento:
MD5: d9e9e2a8619aef54205fcc2176d48861
Download: 889 dal 16 aprile 2017
Informazioni:
CHAPTER 1
 GENERAL INFORMATION
 J
SPECIFICATIONS ... 
 1-1
COMPARISON OF FEATURES ... 
 1-2
COMPARISON OF MAIN CONTROL ICs ... 
 1-3
TIPS FOR
SERVICING ... 
 1-4
TROUBLE DISPLAY FUNCTION ... 
 1-4
How to Remove the Cassette when a
Malfunction Has Occurred in the Mechanism ... 
 1-5
Instructions on Use and Description of New Functions ■ 1-6
CHAPTER 2
 DISASSEMBLY
- VT-FX75xE/FX76xE/MX730E -
1.Before Starting Disassembly ... 
2.Disassembly M
ethod ... 
Parts Hierarchy C
hart ... 
Disassembly Procedure Diagrams ... 
2-1 .Top cover, front panel, rear panel, RJK board
and US-FL mechanism ... 
2-2.Cassette door and buttons ... 
2-3.STL or LED
board ... 
2-4.Front frame and LCD board ... 
2-5.US mechamsm/MAS board assembly
and N&A or A2
board ... 
2-6.Separation of MAS board from US mechanism ■■■
2-7.Procedure to remove only the US mechanism ■■■■
- VT-FX770E -
1.Before Starting Disassembly ... 
2.Disassembly M
ethod ... 
Parts Hierarchy C
hart ... 
Disassembly Procedure Diagrams ... 
2-1 .Top cover, front panel, rear panel, bottom cover,
RJK board and US-FL mechanism ... 
2-2.Cassette door and buttons ... 
2-3.Front frame, LCJ and FST board ... 
2-4.NCM and N&A board ... 
2-5.US mechanism/MAS board assembly ... 
2-6.Separation of MAS board from US mechanism ■■■■
2-7.Procedure to remove only the US mechanism ... 
Cautions When Reinstalling the US Mechanism ... 
■
•
■
■
2-1
2-1
2-1
2-2
■
■
■■2-2
2-2
2-3
2-3
• 2-3
■ 2-4
2-4
2-5
2-5
2-5
2-6
2-6
2-6
2-7
2-7
2-7
2-8
2-8
2-9
ELECTRIC CICUIT ADJUSTMENT AND
CHAPTER 3
TROUBLE DISPLAY
 ________
Service
Position ... 
3-1
- VT-FX75xE/FX76xE/MX730E -
1.Servicing position during electrical adjustment ...  3-1
2.Servicing positions when repairing and
checking
circuits ... 
3-1
3.Be careful of electric
shocks ...  3-1
Service
Position ... 
3-2
- VT-FX770E -
1.Servicing position during electrical adjustment ... 3-2
2.Servicing positions when repairing and
checking
circuits ... 
3-2
3.Be careful of electric
shocks ...  3-2
Electrical Circuit
Adjustment ...  3-3
1.Test equipment/jigs necessary for adjustment ...  3-3
2.Cautions on
adjustment ...  3-3
3.Tips.for
adjustment ... 3-3
4.Connections of test
equipment ...  3-3
5.Test.Points and Adjustment
points ...  3-4
6.Servo Circuit
Adjustments ...  3-5
6-1.Switching point
adjustment ... 3-5
6-2.X-value
adjustment ...  3-5
6-3.Vertical jitter
adjustment ...  3-6
6-4.Forward slow tracking preset adjustment ... 3-6
6-5.Reverse slow tracking preset adjustment ... 3-6
7.Audio Circuit
Adjustment ...  3-7
7-1.Hi-Fi.audio playback level
check ...  3-7
7-2.E-E audio level
check ...  3-7
8.Cylinder Rotation Accumulated
Hours of Usage
Display ...  3-7
9.List.of Data in EEPROM and Initial Settings ... 3-8
10.List of Hidden
Commands ...  3-8
10-1 .Mode setting commands during adjustment ...  3-8
10-2.EEPROM initialization commands ... 3-8
H.Coution When Handling IC4302 (NAVI EEPROM)-- 3-8
12.Initial settings of
IC903(EEPROM) ...  3-9
13.Caution When Replacing IC903(EEPROM) ... 3-9
TROUBLE DISPLAY FUNCTION ... 3-10
Troubleshooting According to Malfunction Display ... 3-11
CHAPTER 4
 EXPLODED VIEWS
 ]
1.CABINETS ECTION
 ...  4-1
2.US-MECHA NISM (TOP VIEW) SECTION ...  4-3
3.US-MECHA NISM (BOTTOM VIEW) SECTION ...  4-4
4.US-FL MEC HANISM
SECTION ...  4-5
CHAPTER 5
 REPLACEMENT PARTS LIST
 ]
1.MECHANIS M PARTS L IS T
 ... 5-1
2.ELECTRICS L PARTS LIS T
 ...  5-2
CHAPTER 6
SCHEMATIC, CIRCUIT BOARD AND BLOCK
DIAGRAMS AND MICROPROCESSOR PIN
FUNCTION TABLES
INTERNAL WIRING
DIAGRAM ...  6-1
CONNECTION
DIAGRAM ...  6-2
LCD DISPLAY (LCD)
[EXCEPT FOR FX770E] ...  c M
/lfo 47
SHUTTLE SWITCH (STL)
 SCHEMATIC B0ARD
[FOR FX750E(UKN)/FX760E]  ... —
  ...  ^ A p / ^ 8
LCD/JACK (LCJ) [FOR FX770E] ...  6-5 / 6-49
FRONT SHUTTLE (FST) [FOR FX770E]  ...  6-6 / 6-49
CYLINDER MOTOR ... 
6-7/ -
CAPSTAN MOTOR ... 
6-7/ -
MAIN1
(MAS) ... 
6-9/6-2
LED (LED) [FOR FX765E] ...  6-10 /
6-48
MAIN2
(MAS) ... 
6-12/6-27
REAR JACK (RJK) ... 
6-15/ 6-45
NICAM (N&A) [EXCEPT FOR VPS] ...  6-17/ 6-45
A2 (A2) [FOR V
PS] ...  6-18/ 6-47
TAPE NAVIGATION ... 
6-19 / 6-23
WAVEFORMS
SERVO
WAVEFORMS ...  6-8
Y/CHROMA WAVEFORMS ...  6-8
BLOCK DIAGRAMS
MAIN
CONTROL ... 
6-51
SERVO ... 
6-53
VIDEO ... 
6-55
POWER
SUPPLY ...  6-57
AUDIO ... 
6-59
MICROPROCESSOR PIN FUNCTION TABLES ... 6-6
Hitachi-8897-Manual-Page-1-Picture


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