T120039
TABLE OF CONTENTS
Section
Title
Page
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 SERVICE POSITION.............................................................................................................................. 1-4
1.5 MECHANISM SERVICE MODE ............................................................................................................. 1-4
1.6 JIG RCU MODE ..................................................................................................................................... 1-5
1.7 SERVICING ITEMS RELATED TO VIDEO NAVIGATION ........................................................................ 1-5
1.7 EMERGENCY DISPLAY FUNCTION ...................................................................................................... 1-6
2. MECHANISM ADJUSTMENT
2.1 BEFORE STARTING REPAIR AND ADJUSTMENT ................................................................................ 2-1
2.2 REPLACEMENT OF MAJOR PARTS ..................................................................................................... 2-6
2.3 COMPATIBILITY ADJUSTMENT .................................................................................................................... 2-16
3. ELECTRICAL ADJUSTMENT
3.1 PRECAUTION ........................................................................................................................................ 3-1
3.2 SERVO CIRCUIT ................................................................................................................................... 3-2
3.3 VIDEO CIRCUIT ..................................................................................................................................... 3-2
3.4 AUDIO CIRCUIT ..................................................................................................................................... 3-4
3.5 SYSCON CIRCUIT ................................................................................................................................. 3-4
3.6 PAL/SECAM CONVERTER CIRCUIT .................................................................................................... 3-5
4. CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM .............................................................................................................. 4-1
CIRCUIT BOARD NOTES ............................................................................................................................... 4-2
4.1 BOARD INTERCONNECTIONS .............................................................................................................. 4-3
4.2 MAIN (VIDEO/AUDIO) AND AUDIO ERASE SCHEMATIC DIAGRAMS .................................................. 4-5
4.3 MAIN (SYSCON) SCHEMATIC DIAGRAM ............................................................................................. 4-8
4.4 MAIN (SW.REG) SCHEMATIC DIAGRAM ............................................................................................. 4-11
4.5 MAIN (TUNER) SCHEMATIC DIAGRAM................................................................................................ 4-13
4.6 MAIN (CONNECTION) SCHEMATIC DIAGRAM .....................................................................................4-15
4.7 2D DIGITAL SCHEMATIC DIAGRAM ..................................................................................................... 4-17
4.8 TERMINAL SCHEMATIC DIAGRAM ...................................................................................................... 4-19
4.9 DEMODULATOR SCHEMATIC DIAGRAM ............................................................................................. 4-21
4.10 S-SUB SCHEMATIC DIAGRAM ............................................................................................................ 4-23
4.11 DISPLAY, REC SAFETY, S-JACK AND JOG SCHEMATIC DIAGRAMS ................................................ 4-25
4.12 S-P CONVERTER SCHEMATIC DIAGRAM ...........................................................................................4-27
4.13 SECAM SCHEMATIC DIAGRAM ..........................................................................................................4-29
4.14 2D DIGITAL AND S-SUB CIRCUIT BOARDS ......................................................................................... 4-31
4.15 TERMINAL CIRCUIT BOARD ................................................................................................................4-32
4.16 MAIN CIRCUIT BOARD .........................................................................................................................4-33
4.17 S-P CONVERTER CIRCUIT BOARDS ................................................................................................... 4-36
4.18 DISPLAY, REC SAFETY, JACK, JOG, DEMODULATOR AND SECAM CIRCUIT BOARDS ...................4-37
4.19 REMOTE CONTROLLER SCHEMATIC DIAGRAM ................................................................................ 4-39
4.20 FDP GRID ASSIGNMENT AND ANODE CONNECTION........................................................................ 4-40
4.21 WAVEFORMS ...................................................................................................................................... 4-41
4.22 VOLTAGE CHARTS .............................................................................................................................. 4-43
4.23 CPU PIN FUNCTION ............................................................................................................................. 4-45
4.24 SYSTEM CONTROL BLOCK DIAGRAM ............................................................................................... 4-47
4.25 VIDEO BLOCK DIAGRAM .................................................................................................................... 4-49
4.26 AUDIO BLOCK DIAGRAM .................................................................................................................... 4-53
5. PARTS LIST
5.1 PACKING AND ACCESSORY ASSEMBLY ........................................................................................... 5-1
5.2 CABINET AND CHASSIS ASSEMBLY................................................................................................... 5-2
5.3 MECHANISM ASSEMBLY .................................................................................................................... 5-3
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3/3/2019
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