Table Of Contents - JVC HR-J695MS Service Manual

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Section
Important Safety Precautions
INSTRUCTIONS
1. DISASSEMBLY
1.1 Manually removing the cassette tape ......................... 1-1
1.2 Removing the major parts ........................................... 1-2
1.2.1 How to read the procedure table ........................... 1-2
1.2.2 Disassembly procedure ........................................ 1-2
1.3 Emergency display function ........................................ 1-4
1.3.1 Displaying the EMG information ........................... 1-4
1.3.2 Clearing the EMG history ...................................... 1-4
1.3.3 Details of the OSD display in the EMG display mode ... 1-5
1.3.4 EMG content description ....................................... 1-6
1.3.5 EMG detail information<1> ................................... 1-7
1.3.6 EMG detail information<2> ................................... 1-8
1.3.7 EMG detail information<3> ................................... 1-8
1.4 Service position ........................................................... 1-9
1.4.1 How to set the "Service position" .......................... 1-9
1.5 Jig RCU mode ............................................................. 1-9
1.5.1 Setting the Jig RCU mode .................................... 1-9
1.5.2 Setting the User RCU mode ................................. 1-9
1.6 Mechanism service mode ........................................... 1-9
1.6.1 How to set the "Mechanism service mode" ........... 1-9
1.6.2 How to exit from the "Mechanism service mode" .. 1-9
1.7 Maintenance and inspection ..................................... 1-10
1.7.1 Cleaning .............................................................. 1-10
1.7.2 Lubrication .......................................................... 1-10
1.7.3 Suggested servicing schedule for main components .. 1-10
2. MECHANISM
1. Before disassembling/assembling ................................ 2-1
1.1 Notes ........................................................................ 2-1
1.2 Mechanism operation check .................................... 2-1
1.3 Setting the mechanism assembling mode ............... 2-1
1.4 Layout of the main mechanism parts ....................... 2-2
1.5 Disassembling procedure table ................................ 2-3
2. Replacement of the main mechanism parts .................. 2-4
2.1 Cassette holder ........................................................ 2-4
2.2 A/C head .................................................................. 2-5
2.3 Guide arm, pinch roller arm ..................................... 2-6
2.4 Idler arm, idler gear 1/2 ............................................ 2-6
2.5 Main brake(T), brake lever, tension arm,reel disk(S/T), Rec safety lever .. 2-6
2.6 Press lever, control cam, capstan brake assembly,loading motor assembly .. 2-7
2.7 Capstan motor, load gear, control plate ................... 2-8
2.8 Clutch unit assembly, direct gear ............................. 2-9
3. Mechanism timing chart .............................................. 2-10
3. ADJUSTMENT
3.1 Before adjustment ....................................................... 3-1
3.1.1 Precaution .............................................................. 3-1
3.1.2 Required test equipments ..................................... 3-1
3.1.3 Required adjustment tools .................................... 3-1
3.1.4 Color(colour) bar signal, color(colour) bar pattern 3-1
3.1.5 Switch settings ...................................................... 3-1
3.1.6 Manual tracking mode (Auto tracking ON/OFF) setting 3-1
The following table lists the differing points between models HR-J690EU, HR-J695EK, HR-J695MS, HR-J790EU, HR-J795EK
and HR-J795MS.
ITEM
POWER PLUG
ADVANCED JOG
VIDEO SYSTEM
FRONT VIDEO/AUDIO IN
REMOTE PAUSE
BROADCASTING STANDARD
STEREO DECODER
RF OUT SYSTEM [INITIAL]
VCR PLUS+
LANGUAGE [INITIAL](ON SCREEN DISPLAY)
AUDIO DUBBING / OPERATION
Notes: Mark
Title
MODEL
HR-J690EU
CEE(CLASSII) 3PIN(CLASSII)
NOT USED
PAL/MESECAM(MANUAL)
NOT USED
NOT USED
"B/G,D/K"
NICAM/A2
"G,K"
SHOWVIEW DELUXE VIDEOPLUS+ DELUXE SHOWVIEW DELUXE
13LANG.[E]
NOT USED
is same as left.

TABLE OF CONTENTS

Page Section
3.2 Mechanism compatibility adjustment .......................... 3-2
3.2.1 Tension pole position ............................................. 3-2
3.2.2 FM waveform linearity ........................................... 3-2
3.2.3 Height and tilt of the A/C head .............................. 3-3
3.2.4 A/C head phase(X-value) ...................................... 3-3
3.3 Electrical Adjustment ................................................... 3-4
3.3.1 Servo circuit .......................................................... 3-4
3.3.1.1 Switching point ................................................. 3-4
3.3.1.2 Slow tracking preset ......................................... 3-4
3.3.2 Syscon circuit [HR-J690EU/J790EU] .................... 3-4
3.3.2.1 Timer clockl ...................................................... 3-4
4. CHARTS AND DIAGRAMS
4.1 BOARD INTERCONNECTIONS ................................. 4-3
4.2 MAIN(VIDEO/N.AUDIO) SCHEMATIC DIAGRAM ...... 4-5
4.3 MAIN(SYSCON) SCHEMATIC DIAGRAM .................. 4-7
4.4 MAIN(SECAM) SCHEMATIC DIAGRAM [HR-J695MS/J795MS]..... 4-10
4.5 MAIN(SW.REG) SCHEMATIC DIAGRAM ................. 4-11
4.6 MAIN(TUNER) SCHEMATIC DIAGRAM ................... 4-13
4.7 MAIN(FMA) SCHEMATIC DIAGRAM ....................... 4-15
4.8 MAIN(FRONT) SCHEMATIC DIAGRAM ................... 4-17
4.9 MAIN(TERMINAL) SCHEMATIC DIAGRAM ............. 4-19
4.10 MAIN(VPS/PDC SLICER) SCHEMATIC DIAGRAM .. 4-21
4.11 ADV.JOG SCHEMATIC DIAGRAM [HR-J790EU/J795EK/J795MS] ... 4-22
4.12 MAIN, R.PAUSE AND SAT CTL CIRCUIT BOARDS .. 4-23
4.13 REMOTE CONTROLLER SCHEMATIC DIAGRAM .. 4-26
4.14 FDP GRID ASSIGNMENT AND ANODE CONNECTION ... 4-26
4.15 WAVEFORMS ......................................................... 4-27
4.16 VOLTAGE CHARTS ................................................ 4-28
4.17 CPU PIN FUNCTION .............................................. 4-29
4.18 SYSTEM CONTROL BLOCK DIAGRAM ................ 4-31
4.19 VIDEO BLOCK DIAGRAM ...................................... 4-33
4.20 AUDIO BLOCK DIAGRAM ...................................... 4-35
5. PARTS LIST
5.1 PACKING AND ACCESSORY ASSEMBLY<M1> ....... 5-1
5.2 FINAL ASSEMBLY<M2> ............................................. 5-2
5.3 MECHANISM ASSEMBLY<M4> ................................. 5-4
5.4 ELECTRICAL PARTS LIST ......................................... 5-6
MAIN BOARD ASSEMBLY<03> ..................................... 5-6
A/C HEAD BOARD ASSEMBLY<12> ........................... 5-14
ADV.JOG BOARD ASSEMBLY<38> [HR-J790EU/J795EK/J795MS] . 5-14
LOADING MOTOR BOARD ASSEMBLY<55> .............. 5-14
R.PAUSE BOARD ASSEMBLY<91> [HR-J790EU/J795MS] .. 5-14
SAT CTL BOARD ASSEMBLY<94> .............................. 5-14
HR-J695EK HR-J695MS
CEE(CLASSII)
PAL PAL/MESECAM/SECAM PAL/MESECAM(MANUAL)
I "L,L',B/G"
NICAM "NICAM(L,B/G)/A2(B/G)"
I NOT USED
ENG FRE
NOT USED NOT USED
World of free manuals
Title
HR-J790EU HR-J795EK
CEE(CLASSII) 3PIN(CLASSII)
USED
PAL
USED NOT USED
USED NOT USED
"B/G,D/K" I
NICAM/A2 NICAM
"G,K" I
VIDEOPLUS+ DELUXE SHOWVIEW DELUXE
13LANG.[E] ENG
USED/BUTTON NOT USED
25/8/2013
Page
HR-J795MS
CEE(CLASSII)
PAL/MESECAM/SECAM
USED
USED
"L,L',B/G"
"NICAM(L,B/G)/A2(B/G)"
NOT USED
FRE
USED/BUTTON