Informacji Wyposażenie:

JVC HR-J425EG Magnetowid
Producent:
JVC
Model: HR-J425EG
Data: 1995
Kategoria: Audio, Video, TV, Multimedia
Grupa: Magnetowid
Opis:
Informacje:
                                    

Te Podręczniki są dostępne dla powyższego urządzenia:

Instrukcja obsługi Typ: Instrukcja serwisowa JVC-9048-Manual-Page-1-Picture
Strony: 74
Rozmiar: 15.75 Mbytes (16515224 Bytes)
Język: Angielski
Weryfikacja:
Manual-ID/Number: 82461
Data: 01 kwiecień 1995
Jakość: Skanowany dokument, czytając częściowo źle, nie częściowo czytelny.
Czas trwania filmu:
MD5: e6aa1244fc03ba3cc8c412d4461dfb5d
Pliki do pobrania: 262 od 15 maj 2017
Informacje:
Important Safety Precautions INSTRUCTIONS

1.	DISASSEMBLY

1.1	DISASSEMBLY FLOW
CHART ...  1-1

1.2	HOW TO READ THE DISASSEMBLY AND ASSEMBLY  ...  1 -1

1.3	DISASSEMBLY/ASSEMBLY
METHOD ...  1-1

1.4	CASSETTE HOUSING
INSTALLATION ... 1-4

1.5	SERVICE
POSITION ... 1-4

1.5.1	How to take out the Mechanism and Main board
assemblies ...  1 -4

1.5.2	Cautions on cassette loading when mechanism is in
service
position ... 
1-5

1.5.3	Cassette loading and ejecting procedures when
mechanism is in service
position ... 1-5

1.5.4	Opening on the
chassis ... 1 -6

1.6	MECHANISM SERVICE
MODE ... 1-7

1.6.1	How to set the “MECHANISM SERVICE MODE* ... 1-7

1.7	EMERGENCY DISPLAY
FUNCTION ... 1-8

1.7.1	How to display record of an emergency
faults ... 1-8

1.7.2	Detail of emergency
faults ... 1 -8

1.7.3	How to clear emergency
record ... 1-8

2.	MECHANISM ADJUSTMENT

2.1
PREPARATION ... 2-1

2.1.1
Precautions ... 2-1

2.1.2	Check without cassette housing
assy ... 2-1

2.1.3	Manual removal of loaded
tape ... 2-1

2.1.4	Test
Equipment ... 2-2

2.2	MAIN MECHANISM
PARTS ... 2-2

2.2.1
Cleaning ... 2-3

2.2.2
Lubrication ... 2-3

2.3	INSPECTION AND
MAINTENANCE ... 2-4

2.3.1	Suggested servicing schedule for main Components ...  2-4

2.4.1	Precaution before disassembling
mechanism ... 2-4

2.4.2	How to set the exclusive mechanism operation mode
(MECHANISM ASSEMBLING MODE) ... 2-4

2.5	MAIN PARTS REPLACEMENT OF MECHANISM ... 2-4

2.5.1	Pinchi Roller Arm
Assy ... 2-4

2.5.2	A/C
Head ... 2-5

2.5.3	Pinch
plate ... 2-5

2.5.4	Mode
Motor ... 
2-6

2.5.5	Lever Assy,Sub Deck Assy,Capstan
Motor ... 2-6

2.5.6	Cortrol Bracket-1,Earth
Plate ... 2-7

2.5.7	Reel Bracket, Slit Disk
(take-up) ... 2-7

2.5.8	Control Bracket-2.Control
Plate ... 2-7

2.5.9	Sub Brake (take-up),Cortrol
Cam ... 2-8

2.5.10	Slide
Plate ... 
2-8

2.5.11	Change Lever,Rotary
Encoder ... 2-8

2.5.12	Sub Brake (supply), Tension Band Assy .Tension Arm
Assy, Take-up Lever Assy, Slit Disk (supply) ... 2-9

2.5.13	Take -up Head, Tension Arm
Lever ... 2-9

2.5.14	Guide
Rail ... 2-10

2.5.15	Stator
Assy ... 2-10

2.5.16	Rotor
Assy ... 2-10

2.5.17	Upper Drum
Assy ... 2-11

2.6	CHECKUP AND ADJUSTMENT OF MECHANISM PHASE  ...  2-12

2.6.1
Precaution ... 2-12

2.6.2	Loading Arm
Assy(supply,take-up) ...  2-12

2.6.3	Rotary Encoder,Change Lever,Control
Cam ... 2-13

2.6.4	Slide
plate ... 2-13

2.6.5	Control
Plate ... 2-13
Section	Title	Page

2.7	TAPE INTERCHANGEABILITY ADJUSTMENT ... 2-14

2.7.1	Tape pattern
 ... - ... 2-14

2.7.2	A/C head height &
azimuth ... 2-15

2.7.3	A/C head phase
(X-value) ... 2-16

2.7.4	LP mode auto
tracking ... 2-16

2.7.5	Tension pole
position ... 2-17

2.7.6	Take-up
torque ... 2-17

3.ELECTRICAL	ADJUSTMENT

3.1
PRECAUTION ... 3-1

3.1.1	Required test
equipment ... 3-1

3.1.2	Required adjustment
tools ... 3-1

3.1.3	Colour bar signal,colour bar
pattern ... 3-1

3.2	SERVO
CIRCUIT ... 3-2

3.3	VIDEO
CIRCUIT ... 3-3

3.3.1	EE Y
LEVEL ... 3-3

3.3.2	WHITE / DARK
CLIP ... 3-3

3.3.3
CARRIER ... 3-4

3.3.4
DEVIATION ... 3-4

3.3.5	REC COLOR
LEVER ... 3-4

3.3.6	PB Y
LEVEL ... 3-4

3.4	SYSCON
CIRCUIT ... 3-5

3.4.1	Timer
clock ... 3-5

3.5	TUNER
CIRCUIT ... 3-5

3.5.1
RFAGC ... 3-5

4.	CHARTS AND DIAGRAMS

SCHEMATIC DIAGRAM
NOTES ... 4-1

CIRCUIT BOARD
NOTES ... 4-2

4.1	BOARD
INTERCONNECTIONS ... 4-3

4.2	VIDEO BLOCK
DIAGRAM ... 4-5

4.3	SYSCON/SERVO BLOCK
DIAGRAM ... 4-7

4.4	TUNER SCHEMATIC
DIAGRAM ... 4-9

4.5	AUDIO SCHEMATIC
DIAGRAM ... 4-11

4.6	VIDEO SCHEMATIC
DIAGRAM ... 4-13

4.7	SERVO SCHEMATIC
DIAGRAM ... 4-15

4.8	SYSTEM CONTROL SCHEMATIC DIAGRAM ... 4-17

4.9	SWITCHING REGULATOR SCHEMATIC DIAGRAM ...  4-19

4.10	MAIN AND A/C HEAD CIRCUIT BOARDS ... 4-21

4.11	TERMINAL & MAIN(TERMINAL)SCHEMATIC DIAGRAMS ... 4-25

4.12	TERMINAL CIRCUIT
BOARD ... 4-29

4.14	DISPLAY/SW.SW/JACKREC SAFETY AND CASSETTE SW CIRCUIT
BOARDS (for HR-J425E)
 ... 4-31

4.15	DISPLAY & SW/JACK SCHEMATIC DIAGRAMS(for
HR-J425EG) ... 4-33

4.16	DISPLAY,SW/JACK FEC SAFETY AND CASSETTE SW CIRCUrT
BOARDS(for
HR-J425EG) ... 4-35

4.17	PRE/REC SCHEMATIC DIAGRAM
 ... 4-37

4.18	PRE/REC CIRCUIT
BOARD ... 4-39

4.19	VPS SCHEMATIC
DIAGRAM ... 4-41

4.20	REMOTE CONTROL SCHEMATIC DIAGRAM ...  4-42

5.	PARTS LIST

5.1	PACKING AND ACCESSORY
<M1> ... 5-1

5.2	CABINET AND CHASSIS ASSEMBLY <M2> ... 5-2

5.3	MECHANISM ASSEMBLY
<M4> ... 5-4

5.4	ELECTRICAL PARTS
LIST ... 5-6

MAIN BOARD ASSEMBLY
<03> ... 5-6

TERMINAL BOARD ASSEMBLY
<06> ... 5-11

AUDIO/CONTROL HEAD ASSEMBLY <12> ...  5-11

DISPLAY BOARD ASSEMBLY
<28> ... 5-11

REC SAFETY BOARD ASSEMBLY <32> ... 
5-12

CASS SW BOARD ASSEMBLY
<33> ...  5-12

SWITCH/JACK BOARD ASSEMBLY <36> ...  5-12

PRE/REC AMP BOARD ASSEMBLY <43> ... 5-13

6 TECHNICAL INFORMATION

6.1	SYSCON
CIRCUIT ... 
6-1
JVC-9048-Manual-Page-1-Picture


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