Panasonic NV-MV20EG Manuale utente

mv20eg.html
Table Of Contents 
COVER 
INTRODUCTION 
1 INTRODUCTION 
2 ABOUT LEAD FREE SOLDER (PbF) 
GENERAL DESCRIPTIONS 
1 SERVICE CAUTION 
1.1 REPLACING IC6002&sol;EEPROM 
1.2 CYLINDER UNIT REPLACEMENT 
1.3 CHECKING OF MAIN C.B.A. 
1.4 FLAT CARD CABLE INSTALLATION 
2 REMOVAL OF CASSETTE TAPE 
3 INTRODUCTION OF VIDEO HEAD CLEANING CASSETTE(POLISHING TYPE) 
4 SELF-DIAGNOSIS RESULT DISPLAY 
5 CAUTION FOR AC MAINS LEAD (NV-MV20EB&sol;EBL) 
ADJUSTMENT PROCEDURES 
1 DISASSEMBLY METHOD 
1.1 DISASSEMBLY FLOW CHART 
1.2 DETAIL OF DISASSEMBLY METHOD 
2 MECHANICAL ADJUSTMENT PROCEDURES 
3 ELECTRICAL ADJUSTMENT PROCEDURES 
3.1 TEST EQUIPMENT 
3.2 VCR SETTING 
3.3 ADJUSTMENTS 
3.4 PG SHIFTER ADJUSTMENT(AUTOMATIC) 
3.5 VHS FREQUENCY RESPONSE ADJUSTMENT 
3.6 LOCATION OF TEST POINTS& CONTROLS 
3.7 CIRCUIT BOARD LAYOUT 
ABBREVIATIONS 
INPUT&sol;OUTPUT CHART 
1 INPUT&sol;OUTPUT CHART FOR IC6001 
2 TRUTH TABLE (EG&sol;EP MODEL) 
3 TRUTH TABLE (EB&sol;EBL MODEL) 
WAVEFORM TABLE& VOLTAGE CHART 
1 WAVEFORM TABLE 
2 VOLTAGE CHART 
BLOCK DIAGRAMS 
1 SYSTEM CONTROL& SERVO BLOCK DIAGRAM 
Service Manual
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ORDER NO. MABR0303005C2
Video Cassette Recorder
●NV-MV20EG 
NV-MV20EB 
NV-MV20EBL 
NV-MV15EG 
NV-MV15EP
Z-MECHANISM
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mv20eg.html
2 LUMINANCE& CHROMINANCE BLOCK DIAGRAM 
SCHEMATIC DIAGRAMS 
1 POWER TRANSFORMER SECTION IN MAIN SCHEMATIC DIAGRAM 
2 POWER SUPPLY&sol; RF SECTION IN MAIN SCHEMATIC DIAGRAM 
3 TIMER SECTION IN MAIN SCHEMATIC DIAGRAM 
4 SYSTEM CONTROL& SERVO SECTION IN MAIN SCHEMATIC DIAGRAM 
5 LUMINANCE& CHROMINANCE&sol; AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM 
6 INPUT&sol; OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM 
7 TV DEMODULATOR PACK SCHEMATIC DIAGRAM 
8 CYLINDER STATOR UNIT SCHEMATIC DIAGRAM 
9 CAPSTAN UNIT SCHEMATIC DIAGRAM 
CIRCUIT BOARD ASSEMBLIES 
1 TV DEMODULATOR PACK C.B.A. 
2 CYLINDER STATOR UNIT 
3 MAIN C.B.A. 
EXPLODED VIEWS 
1 CHASSIS PARTS SECTION 
2 CASING PARTS SECTION 
3 PACKING PARTS SECTION 
REPLACEMENT PARTS LIST 
1 CHASSIS PARTS SECTION PARTS LIST 
2 CASING PARTS SECTION PARTS LIST 
3 PACKING PARTS SECTION PARTS LIST 
4 ELECTRICAL PARTS LIST 
SCHEMATIC DIAGRAM FOR PRINTING WITH A4 SIZE 
© 2003 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of 
law.
 
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Table Of Contents
COVER 
INTRODUCTION 
1 INTRODUCTION 
2 ABOUT LEAD FREE SOLDER (PbF) 
GENERAL DESCRIPTIONS 
1 SERVICE CAUTION 
1.1 REPLACING IC6002/EEPROM 
1.2 CYLINDER UNIT REPLACEMENT 
1.3 CHECKING OF MAIN C.B.A. 
1.4 FLAT CARD CABLE INSTALLATION 
2 REMOVAL OF CASSETTE TAPE 
3 INTRODUCTION OF VIDEO HEAD CLEANING CASSETTE(POLISHING TYPE) 
4 SELF-DIAGNOSIS RESULT DISPLAY 
5 CAUTION FOR AC MAINS LEAD (NV-MV20EB/EBL) 
ADJUSTMENT PROCEDURES 
1 DISASSEMBLY METHOD 
1.1 DISASSEMBLY FLOW CHART 
1.2 DETAIL OF DISASSEMBLY METHOD 
2 MECHANICAL ADJUSTMENT PROCEDURES 
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3 ELECTRICAL ADJUSTMENT PROCEDURES 
3.1 TEST EQUIPMENT 
3.2 VCR SETTING 
3.3 ADJUSTMENTS 
3.4 PG SHIFTER ADJUSTMENT(AUTOMATIC) 
3.5 VHS FREQUENCY RESPONSE ADJUSTMENT 
3.6 LOCATION OF TEST POINTS& CONTROLS 
3.7 CIRCUIT BOARD LAYOUT 
ABBREVIATIONS 
INPUT/OUTPUT CHART 
1 INPUT/OUTPUT CHART FOR IC6001 
2 TRUTH TABLE (EG/EP MODEL) 
3 TRUTH TABLE (EB/EBL MODEL) 
WAVEFORM TABLE& VOLTAGE CHART 
1 WAVEFORM TABLE 
2 VOLTAGE CHART 
BLOCK DIAGRAMS 
1 SYSTEM CONTROL& SERVO BLOCK DIAGRAM 
2 LUMINANCE& CHROMINANCE BLOCK DIAGRAM 
SCHEMATIC DIAGRAMS 
1 POWER TRANSFORMER SECTION IN MAIN SCHEMATIC DIAGRAM 
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8.2 POWER SUPPLY/ RF SECTION IN MAIN SCHEMATIC DIAGRAM

8.3 TIMER SECTION IN MAIN SCHEMATIC DIAGRAM

8.4 SYSTEM CONTROL& SERVO SECTION IN MAIN SCHEMATIC DIAGRAM

8.5 LUMINANCE& CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM

8.6 INPUT/ OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM

8.7 TV DEMODULATOR PACK SCHEMATIC DIAGRAM

8.8 CYLINDER STATOR UNIT SCHEMATIC DIAGRAM

8.9 CAPSTAN UNIT SCHEMATIC DIAGRAM

9 CIRCUIT BOARD ASSEMBLIES

9.1 TV DEMODULATOR PACK C.B.A.

9.2 CYLINDER STATOR UNIT

9.3 MAIN C.B.A.

10 EXPLODED VIEWS

10.1 CHASSIS PARTS SECTION

10.2 CASING PARTS SECTION

10.3 PACKING PARTS SECTION

11 REPLACEMENT PARTS LIST

11.1 CHASSIS PARTS SECTION PARTS LIST

11.2 CASING PARTS SECTION PARTS LIST

11.3 PACKING PARTS SECTION PARTS LIST

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11.4 ELECTRICAL PARTS LIST

12 SCHEMATIC DIAGRAM FOR PRINTING WITH A4 SIZE

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Service Manual

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ORDER NO. MABR0303005C2

Video Cassette Recorder

●NV-MV20EG

NV-MV20EB

NV-MV20EBL

NV-MV15EG

NV-MV15EP

Z-MECHANISM

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1 INTRODUCTION

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1.1 INTRODUCTION

1.2 ABOUT LEAD FREE SOLDER (PbF)

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1.1 INTRODUCTION

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This service manual contains technical information which will allow service personnel to understand

and service this model.

If the circuit is changed or modified, this information will be followed by supplementary service

manual to be filed with original service manual.

Note:

1. Adjustment procedures, Disassembly Procedures and Assembly Procedures for Mechanism

Chassis are separate volume from this service manual.

Please refer to the service manual for Z-Mechanism Chassis. (Order No. VRD9802005C2)

2. The Model No. is indicated on the Schematic Diagram and Circuit Board Diagrams as follows.

Model No. Indication Mark

NV-MV20EG (A)

NV-MV20EB (B)

NV-MV20EBL (C)

NV-MV15EG (D)

NV-MV15EP (E)

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