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TABLE OF CONTENTS
Section Title Page Section Title Page
Feature Difference................................................................... 2
SERVICE NOTE ...................................................................... 4
1. GENERAL
Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-2
Additional Operations.................................................... 1-3
Additional Information ................................................... 1-6
2. DISASSEMBLY
2-1. Upper Case Removal .................................................... 2-1
2-2. Front Panel Section Removal........................................ 2-1
2-3. Rear Panel Removal ..................................................... 2-1
2-4. Mechanism Deck Removal............................................ 2-1
2-5. MA-366 Board Removal ................................................ 2-2
2-6. Internal Views ................................................................ 2-3
2-7. Circuit Boards Location ................................................. 2-4
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram................................................... 3-1
3-2. Video Block Diagram..................................................... 3-3
3-3. Servo/System Control Block Diagram .......................... 3-5
3-4. Audio Block Diagram ..................................................... 3-7
3-5. Mode Control Block Diagram ........................................ 3-9
3-6. Power Block Diagram .................................................... 3-11
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. Frame Schematic Diagram............................................ 4-3
4-2. Printed Wiring Boards and Schematic Diagrams ......... 4-5
MA-366 Printed Wiring Board ....................................... 4-5
MA-366 (Video, Audio) Schematic Diagram................. 4-9
MA-366 (OSD, Servo/System/Mode Control)
Schematic Diagram ....................................................... 4-13
MA-366 (HiFi Audio, I/O, TUNER)
Schematic Diagram ....................................................... 4-15
MA-366 (Power Supply) Schematic Diagram ............... 4-17
FR-167 Printed Wiring Board and
Schematic Diagram ....................................................... 4-19
5. INTERFACE, IC PIN FUNCTION DESCRIPTION
5-1. System Control-Video Block Interface
(MA-366 BOARD IC101)............................................... 5-1
5-2. System Control-Servo Peripheral Circuit Interface
(MA-366 BOARD IC101)............................................... 5-1
5-3. System Control-Mechanism Block Interface
(MA-366 BOARD IC101)............................................... 5-2
5-4. System Control-Audio Block Interface
(MA-366 BOARD IC101)............................................... 5-3
5-5. Servo/System Control Microprocessor
Pin Function (MA-366 BOARD IC101) ......................... 5-4
6. ADJUSTMENTS
6-1. Mechanical Adjustments ............................................... 6-1
6-2. Electrical Adjustments ................................................... 6-1
2-1. Pre-Adjustment Preparations ........................................ 6-1
2-1-1. Instruments to be Used............................................ 6-1
2-1-2. Connection ............................................................... 6-1
2-1-3. Set-up of Adjustment ............................................... 6-1
2-1-4. Alignment T apes....................................................... 6-1
2-1-5. Specified I/O Level and Impedance......................... 6-1
2-1-6. Adjusting Sequence ................................................. 6-2
2-2. Power Supply Adjustments ........................................... 6-2
2-2-1. Power Supply Check................................................ 6-2
2-3. Servo System Adjustments ........................................... 6-2
2-3-1. RF Switching Position Adjustment........................... 6-2
2-4. Audio System Adjustments ........................................... 6-3
2-4-1. Hi-Fi Audio System Adjustment ............................... 6-3
1. AF Switching Position Adjustment ........................... 6-3
2-4-2. Normal Audio System Adjustment ........................... 6-3
1. ACE Head Adjustment ............................................. 6-3
2. E-E Output Level Check........................................... 6-3
2-5. Parts Arrangement Diagram for Adjustments ............... 6-4
7. REPAIR PARTS LIST
7-1. Exploded Views ............................................................. 7-1
7-1-1. Front Panel and Cabinet Assemblies....................... 7-1
7-1-2. Chassis Assembly.................................................... 7-3
7-1-3. Mechanism Chassis Assembly (1)........................... 7-4
7-1-4. Mechanism Chassis Assembly (2)........................... 7-5
7-1-5. Mechanism Chassis Assembly (3)........................... 7-6
7-2. Electrical Parts List ....................................................... 7-7