JVC HR-J415E Video cassette recorder
Manufacturer:
Model:
HR-J415E
Date:
1994
Category:
Group:
Description:
Service Manual
Manual type:
Service Manual
Pages:
70
Size:
15.93 Mbytes (16707027 Bytes)
Language:
english
Revision:
Manual ID:
82508
Date:
1994 06 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2017 05 15
MD5:
610cbfc5f5e9d59be4fc9fdc1165b543
Downloads:
1209

Information

ecautions INSTRUCTIONS 1. DISASSEMBLY 1.1 DISASSEMBLY ... 1-1 1.1.1 Top cover ... 1-1 1.1.2 Front panel assembly ... 1-1 1.1.3 Bottom cover ... 1-1 1.1.4 FRONT board assembly ... 1-1 1.1.5 SWITCHING REGULATOR board assembly ... 1-2 1.1.6 Cassette housing assembly ... 1-2 1.1.7 PRE/REC board assembly ... 1-2 1.1.8 Drum assembly ... 1-3 1.1.9 Main deck assembly ... 1-3 1.1.10 MAIN board assembly ... 1-3 1.1.11 Cassette housing installation ... 1-4 1.2 SERVICE POSITION-1 ... 1-4 1.3 SERVICE POSITION-2 ... 1-5 2. MECHANISM ADJUSTEMENT 2.1 PREPARATION ... 2-1 2.1.1 Precautions ... 2-1 2.1.2 Check without cassette housing ... 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 ... 2-3 2.3.1 Suggested servicing schedule for main Components .. 2-3 2.4 MAIN PARTS REPLACEMENT AND ADJUSTMENT ... 2-4 2.4.1 Stator assembly ... 2-4 2.4.2 Rotor assembly ... 2-4 2.4.3 Drum sub assembly ... 2-5 2.4.4 Upper Drum assembly ... 2.6 2.4.5 Tension arm positioning ... 2-7 2.4.6 Pinch roller cam position ... 2-8 2.4.7 Audio/control head height ... 2-8 2.4.8 Loading arm and plate assembly position ... 2-8 2.4.9 Reel deck height ... 2-8 2.5 TAPE INTERCHANGEABILITY ADJUSTMENT ... 2-9 2.5.1 Height and azimuth adjustment of A/C head ... 2-9 2.5.2 Horizontal Position adjustment of A/C head ... 2-9 2.5.3 Playback tracking ... 2-9 3. ELECTRICAL ADJUSTMENT 3.1 DECK SECTION ADJUSTMENT ... 3-1 3.1.1 PRECAUTION ... 3-1 3.1.2 SWITCHING REGULATOR CIRCUIT ... 3-2 3.1.3 SERVO CIRCUIT ... 3-2 3.1.4 VIDEO CIRCUIT ... 3-3 3.1.5 TIMER CIRCUIT ... 3-5 3.1.6 TUNER CIRCUIT ... 3-5 Section Title Page 4. CHARTS AND DIAGRAMS SCHEMATIC DIAGRAM NOTES ... 4-1 CIRCUIT BOARD NOTES ... 4-2 4.1 BOARD INTERCONNECTIONS ... 4-3 4.2 SYSCON/SERVO BLOCK DIAGRAM ... 4-5 4.3 VIDEO BLOCK DIAGRAM ... 4-7 4.4 AUDIO BLOCK DIAGRAM ... 4-9 4.5 SWITCHING REGULATOR & REGULATOR SCHEMATIC DIAGRAMS ... 4-11 4.6 SWITCHING REGULATOR CIRCUIT BOARD ... 4-13 4.7 TUNER SCHEMATIC DIAGRAM ... 4-15 4.8 VIDEO SCHEMATIC DIAGRAM ... 4-17 4.9 AUDIO SCHEMATIC DIAGRAM ... 4-19 4.10 SERVO SCHEMATIC DIAGRAM ... 4-21 4.11 SYSCON SCHEMATIC DIAGRAM ... 4-23 4.12 MAIN CIRCUIT BOARD ... 4-25 4.13 VIDEO UNIT SCHEMATIC DIAGRAM ... 4-29 4.14 VIDEO UNIT CIRCUIT BOARD ... 4-31 4.15 TERMINAL & MAIN(TERMINAL)SCHEMATIC DIAGRAMS ... 4-33 4.16 TERMINAL CIRCUIT BOARD ... 4-35 4.17 FRONT SCHEMATIC DIAGRAM ... 4-37 4.18 FRONT CIRCUIT BOARD ... 4-39 4.19 PRE/REC SCHEMATIC DIAGRAM ... 4-41 4.20 PRE/REC CIRCUIT BOARD ... 4-43 4.21 DECK TERMINAL.CASSETTE HOUSING AND CAPSTAN MDA SCHEMATIC DIAGRAMS ... 4-45 4.22 DECK TERMINAL.CASSETTE HOUSING AND A/C HEAD CIRCUIT BOARDS ... 4-46 4.23 REMOTE CONTROL SCHEMATIC DIAGRAM ... 4-47 4.24 RF Converter SCHEMATIC DIAGRAM ... 4-48 4.25 WAVEFORMS ... 4-49 5. PARTS UST 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 UST ... 5-6 SWITCHING REGULATOR BOARD ASSEMBLY <01> ... 5-6 MAIN BOARD ASSEMBLY <03> ... 5-6 VIDEO UNIT BOARD ASSEMBLY <05> ... 5-9 TERMINAL BOARD ASSEMBLY <06> ... 5-10 AUDIO/CONTROL HEAD BOARD ASSEMBLY <12> ... 5-12 FRONT BOARD ASEMBLY <28> ... 5-12 PRE/REC AMP BOARD ASSEMBLY <43> ... 5-13 DECK TERMINAL BOARD ASSEMBLY <51> ... 5-14 CASSETTE HOUSING BOARD <56> ... 5-14 6. TECHNICAL INFORMATION 6.1 SYSCON CIRCUIT ... 6-1

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