Grundig GMI7900, Service Manual

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1 INTRODUCTION 3
1.1. INTRODUCTION1 3
1.2. INTRODUCTION2 3
1.3. FEATURE COMPARISON CHART 3
2 SERVICE CAUTION 4
2.1. EEPROM DATA FOR SPARE PARTS OF THE MAIN
C.B.A. 4
2.2. SERVICE EXTENSION CABLES. 4
2.3. SET-UP FOR ADJUSTMENT OF TATSUJIN. 5
3 SERVICE INFORMATION 6
3.1. SERVICE INFORMATION DISPLAY (GENERAL
DESCRIPTION) 6
3.2. SERVICE MODE 3 (ERROR CODE DISPLAY) 6
3.3. INSERTING THE BUTTON-TYPE BATTERY 7
4 ADJUSTMENT PROCEDURES 8
4.1. DISASSEMBLY PROCEDURES 8
4.2. DISASSEMBLY PROCEDURES OF LENS UNIT 10
5 ABBREVIATIONS 11
6 WAVEFORM TABLE 13
7 BLOCK DIAGRAMS 15
7.1. OVERALL BLOCK DIAGRAM 15
7.2. BLOCK DIAGRAM OF CONNECTION 15
7.3. SYSTEM CONTROL& SERVO/ POWER BLOCK
DIAGRAM 16
7.4. CAMERA BLOCK DIAGRAM 18
7.5. VIDEO BLOCK DIAGRAM 19
8 SCHEMATIC DIAGRAMS 21
8.1. LENS DRIVE SCHEMATIC DIAGRAM 21
8.2. CAMERA 1 SCHEMATIC DIAGRAM 22
8.3. CAMERA 2 SCHEMATIC DIAGRAM 23
8.4. VIDEO SCHEMATIC DIAGRAM 25
8.5. SYSTEM CONTROL& SERVO SCHEMATIC DIAGRAM 27
8.6. AUDIO SCHEMATIC DIAGRAM 30
8.7. POWER SCHEMATIC DIAGRAM 31
8.8. SUB SERVO SCHEMATIC DIAGRAM 33
8.9. AVS OUT SCHEMATIC DIAGRAM 34
8.10. B/W-E.V.F. SCHEMATIC DIAGRAM 34
8.11. MIC UNIT SCHEMATIC DIAGRAM 35
8.12. CCD FLEX. CARD SCHEMATIC DIAGRAM 35
9 CIRCUIT BOARD ASSEMBLIES 37
9.1. MAIN C.B.A. ADDRESS INFORMATION 37
9.2. MAIN C.B.A. (COMPONENT SIDE) 38
9.3. MAIN C.B.A. (FOIL SIDE) 39
9.4. MIC UNIT 40
9.5. B/W-E.V.F. C.B.A. 40
9.6. CCD FLEX. CARD C.B.A. 40
EXPLODED VIEWS 41
11 REPLACEMENT PARTS LIST 43
CONTENTS
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