JVC GR-VF1EG - User Manual

Need help?

Do you have a question about the JVC GR-VF1EG and is the answer not in the manual?

Overview

Function Description
Important Technical Specifications
Camcorder - General
Camcorder - Connectors
Camcorder - AC Adapter
Camcorder - Digital Video Camera
Usage Features
Maintenance Features

This document describes the JVC GR-VF1EG Digital Video Camera, a compact camcorder designed for personal use. It provides detailed technical specifications, usage features, and maintenance information.

Function Description:

The JVC GR-VF1EG is a digital video camera primarily designed for recording and playing back video. It utilizes Mini DV cassettes for storage and features a color LCD monitor for viewing and playback. The camcorder is equipped with a zoom lens, a microphone for audio recording, and various input/output connectors for external devices. It supports both recording and playback in PAL standard.

Important Technical Specifications:

Camcorder - General:

Power Supply: DC 7.2 V (using AC adapter) or DC 7.2 V (using battery pack).
Power Consumption: Approximately 4.3 W.
LCD Monitor (off, viewfinder on): Approximately 3.9 W.
Dimensions (W x H x D): 83 mm x 94 mm x 223 mm (when the LCD monitor is closed and the viewfinder is pushed down).
Weight: 670 g (excluding battery).
Operating Temperature: 0°C to 40°C.
Operating Humidity: 30% to 80%.
Storage Temperature: -20°C to 50°C.
Lens: F 1.6, f= 3.9 mm to 62.4 mm, 16:1 power zoom lens.
Filter Diameter: ø40.5 mm.
LCD Monitor: 2.5" diagonally measured, LCD panel/TFT active matrix.
Viewfinder: Electronic viewfinder with 0.24" black/white LCD.

Camcorder - Connectors:

S-Video Output: Y: 1.0 V (p-p), 75 Ω, analog; C: 0.29 V (p-p), 75 Ω, analog.
Video Output: 1.0 V (p-p), 75 Ω, analog.
Audio Output: 300 mV (rms), 1 kΩ, analog, stereo.
DV Output: 4-pin, IEEE 1394 compliant.

Camcorder - AC Adapter:

Power Requirement: AC 110 V to 240 V~, 50 Hz/60 Hz.
DC Output: DC 11 V, 1 A.

Camcorder - Digital Video Camera:

Format: DV format (SD mode).
Signal Format: PAL standard.
Recording/Playback Format: Video: Digital component recording; Audio: PCM digital recording, 32 kHz 4-channel (12 bit) or 48 kHz 2-channel (16 bit).
Cassette: Mini DV cassette.
Tape Speed: SP: 18.8 mm/sec; LP: 12.5 mm/sec.
Maximum Recording Time (using 80 min. cassette): SP: 80 min.; LP: 120 min.

Usage Features:

The camcorder is designed for ease of use with a color LCD monitor for real-time viewing and playback. The zoom lens allows for flexible framing of shots, and the digital recording format ensures high-quality video and audio. The multiple input/output options facilitate connection to TVs, VCRs, and computers for editing and sharing. The compact and lightweight design makes it portable for various recording environments.

Maintenance Features:

The service manual provides comprehensive instructions for disassembly, assembly, and electrical adjustments, ensuring that the device can be properly maintained and repaired.

Safety Precautions: Emphasizes the importance of using specified parts for critical safety components.
Tools Required for Adjustments: Lists specialized tools like torque drivers, tweezers, and chip IC replacement jigs for precise adjustments.
Cleaning: Recommends using a cleaning cloth for optical lens surfaces and tape transport systems.
Disassembly Procedures: Detailed steps for disassembling various components, including the upper case, front cover, OP block, rear unit, lower case, junction board, main board, E.VF assembly, monitor assembly, and B/W VF assembly. Each step includes figures and notes to guide the technician.
Mechanism Assembly: Instructions for disassembling and assembling the mechanism, including the cassette housing, slide deck, and main deck assemblies. It also provides a mechanism timing chart and procedures for checking and adjusting the mechanism phase.
Compatibility Adjustment: Instructions for adjusting the jig connector cable and tape pattern to ensure proper functionality.
Electrical Adjustments: Guidelines for electrical adjustments using a personal computer, color TV monitor, AC adapter, oscilloscope, digital voltmeter, and frequency counter.
Schematic Diagrams: Detailed circuit diagrams for the main board, monitor, LCD BL, CCD, VF, junction, and jack circuit boards, aiding in troubleshooting and repair.
Parts List: Comprehensive list of all parts, including their part numbers and descriptions, for easy identification and ordering of replacement components.
Beware of Bogus Parts: A warning against using non-genuine parts, highlighting potential safety and performance issues.

The manual also includes a section on "Voltage Charts" for various ICs and components, which is crucial for diagnosing electrical faults. The power system block diagram and video system block diagram provide an overview of the camcorder's internal architecture, facilitating a deeper understanding of its operation.