Table Of Contents - JVC HR-XV1EU-R Service Manual

Section
Important Safety Precautions
INSTRUCTIONS
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P.C.BOARDS ............... 1-1
1-1 TOP CABINET AND FRONT CABINET ............................ 1-1
1-2 FLAP .................................................................................. 1-1
1-3 DECK CD AND DVD PCB ................................................. 1-1
1-4 POWER PCB ..................................................................... 1-2
1-5 VCR DECK ........................................................................ 1-2
1-6 VCR PCB ........................................................................... 1-2
2. REMOVAL OF VCR DECK PARTS ......................................... 1-3
2-1 TOP BRACKET .................................................................. 1-3
2-2 CASSETTE HOLDER ASS'Y ............................................. 1-3
2-3 CASSETTE SIDE L/R ........................................................ 1-3
2-4 LINK UNIT ......................................................................... 1-3
2-5 LINK LEVER / FLAP LEVER ............................................. 1-3
2-6 LOADING MOTOR / WORM .............................................. 1-4
2-7 TENSION ASS'Y ................................................................ 1-4
2-8 T BRAKE ARM / T BRAKE BAND ...................................... 1-5
2-9 S REEL / T REEL / IDLER ARM ASS'Y / IDLER GEAR .............. 1-5
2-10 CASSETTE OPENER / PINCH ROLLER BLOCK / P5 ARM ASS'Y ............. 1-6
2-11 A/C HEAD ........................................................................ 1-6
2-12 FE HEAD ......................................................................... 1-6
2-13 CYLINDER UNIT ASS'Y .................................................. 1-6
2-14 CAPSTAN DD UNIT ......................................................... 1-7
2-15 MAIN CAM / PINCH ROLLER CAM / JOINT GEAR ............ 1-7
2-16 LOADING GEAR S/T UNIT .............................................. 1-7
2-17 CLUTCH ASS'Y / RING SPRING / CLUTCH LEVER / CLUTCH GEAR ............... 1-8
2-18 CASSETTE GUIDE POST / INCLINED BASE S/T UNIT / P4 CAP.............. 1-8
3. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ........... 1-9
REMOVAL ................................................................................ 1-9
INSTALLATION ...................................................................... 1-10
KEY TO ABBREVIATIONS ...................................................... 1-11
SERVICE MODE LIST .............................................................. 1-13
WHEN "N" IS ALWAYS BEING DISPLAYED ON THE TV MONITOR ............. 1-13
PARENTAL CONTROL - RATING LEVEL 4-DIGIT SECURITY CODE CANNCELLATION ................ 1-13
WHEN REPLACING EEPROM(MEMORY) IC ......................... 1-14
PREVENTIVE CHECKS AND SERVICE INTERVALS ............. 1-15
CONFIRMATION OF HOURS USED ....................................... 1-15
CLEANING ............................................................................... 1-15
SERVICING FIXTURES AND TOOLS ...................................... 1-16
MECHANISM ADJUSTMENT PARTS LOCATION GUIDE ............ 1-16
MECHANICAL ADJUSTMENT ................................................ 1-17
TAPE REMOVAL METHOD AT NO POWER SUPPLY .......... 1-17
DISC REMOVAL METHOD AT NO POWER SUPPLY ........... 1-17
1. CONFIRMATION AND ADJUSTMENT ................................. 1-17
1-1 CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION .............. 1-17
1-2 CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK ........... 1-17
1-3 CONFIRMATION OF VSR TORQUE ............................... 1-17
1-4 CONFIRMATION OF REEL BRAKE TORQUE ................ 1-18
2. CONFIRMATION AND ADJUSTMENT OF TAPE
RUNNING MECHANISM .................................................. 1-18
2-1 GUIDE ROLLER .............................................................. 1-18
2-2 CONFIRMATION AND ADJUSTMENT OF AUDIO/CONTROL HEAD ................ 1-19
2-3 TAPE RUNNING ADJUSTMENT(X-VALUE ADJUSTMENT) ................. 1-19
ELECTRICAL ADJUSTMENTS ............................................... 1-20
1. BASIC ADJUSMENT ............................................................ 1-20
1-1 SWITCHING POINT ........................................................ 1-20
ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE ............ 1-20
IC DESCRIPTIONS .................................................................. 1-21
SERVO TIMING CHART .......................................................... 1-32
MECHANISM TIMING CHART ................................................. 1-33
TROUBLE SHOOTING GUIDE ................................................ 1-34
(VCR SECTION) .................................................................... 1-34
(DVD SECTION) .................................................................... 1-57
CHARTS AND DIAGRAMS
INTERCONNECTION DIAGRAM ............................................ 2-1
POWER SCHEMATIC DIAGRAM ........................................... 2-3
READ CHANNEL SCHEMTAIC DIAGRAM ............................. 2-5
DSP SCHEMATIC DIAGRAM .................................................. 2-7
MPEG SCHEMATIC DIAGRAM .............................................. 2-9
MEMORY SCHEMATIC DIAGRAM ....................................... 2-11

TABLE OF CONTENTS

Title Page Section
AUDIO/VIDEO SCHEMATIC DIAGRAM ............................... 2-13
SYSCON1 SCHEMATIC DIAGRAM ...................................... 2-15
Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM ................. 2-17
VCR SYSCON SCHEMATIC DIAGRAM ............................... 2-19
TUNER\/JACK SCHEMATIC DIAGRAM ............................... 2-21
REGULATOR SCHEMATIC DIAGRAM ................................. 2-23
DISPLAY SCHEMATIC DIARAM ........................................... 2-25
HI-FI/DEMODULATOR SCHEMATIC DIAGRAM .................. 2-27
DVD IN/OUT SCHEMATIC DIAGRAM .................................. 2-29
SUB MICOM/OSD/VPS SCHEMATIC DIAGRAM ................. 2-31
OPERATION SCHEMATIC DIAGRAM .................................. 2-33
PRINTED CIRCUIT BOARDS VCR(INSERTED PARTS) ................ 2-35
PRINTED CIRCUIT BOARDS VCR(CHIP MOUNTED PARTS) .............. 2-37
PRINTED CIRCUIT BOARDS DVD ....................................... 2-39
PRINTED CIRCUIT BOARDS POWER / OPERATION ............ 2-41
WAVEFORMS ....................................................................... 2-42
DVD BLOCK DIAGRAM ........................................................ 2-45
Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM .......................... 2-47
MICOM BLOCK DIAGRAM .................................................... 2-49
REGULATOR BLOCK DIAGRAM .......................................... 2-51
DISPLAY/OPERATION BLOCK DIAGRAM ........................... 2-53
TUNER/JACK/HI-FI/21PIN/OSD BLOCK DIAGRAM ............. 2-55
DVD IN/OUT BLOCK DIAGRAM ........................................... 2-57
POWER BLOCK DIAGRAM .................................................. 2-59
PARTS LIST
3.1 PACKING AND ACCESSORY ASSEMBLY<M1> ................ 3-1
3.2 FINAL ASSEMBLY<M2> ...................................................... 3-2
3.3 MECHANISM ASSEMBLY<M4> .......................................... 3-4
3.4 ELECTRICAL PARTS LIST .................................................. 3-7
POWER BOARD ASSEMBLY<01> .......................................... 3-7
VCR BOARD ASSEMBLY<03> ................................................. 3-7
OPERATION BOARD ASSEMBLY<28> ................................. 3-13
DVD BOARD ASSEMBLY<50> ............................................... 3-13
REFERENCE
GENERAL SPECIFICATIONS [HR-XV1EU-R] ........................ 4-1
Title Page