Sharp VL-H860U

VL-H870U
VL-H875U
VL-H890U
1
VL-H860U
VL-H880U
Page
1. IMPORTANT SERVICE NOTES ........................................................................................................ 2
2. SPECIFICATIONS .............................................................................................................................. 4
3. PART NAMES AND FUNCTION ......................................................................................................... 5
4. DISASSEMBLY OF THE SET ............................................................................................................. 6
6. ADJUSTMENT OF VCR AND CAMERA ............................................................................................. 6
7. SYSTEM BLOCK DIAGRAMS ............................................................................................................ 8
8. SCHEMATIC DIAGRAMS ................................................................................................................. 16
10.PRINTED WIRING BOARD ASSEMBLIES ...................................................................................... 56
11.REPLACEMENT PARTS LIST .......................................................................................................... 69
12.PACKING OF THE SET .................................................................................................................... 87
S39F1VL-H860U
CONTENTS
SERVICE MANUAL
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
SERVICE MANUAL
MODELS VL-H860U/H880U
In the interests of user-safety (Required by safety regula-
tions in some countries) the set should be restored to its
original condition and only parts identical to those specified
be used.
MODELS
VL-H860U
VL-H880U
In this Service Manual, only the differences from VL-H870U/H875U/H890U
(S29C4VL-H870U) are described.
Therefore, for the Mechanism parts which are not described in this Service
Manual, refer to the Service Manual for VL-H870U/H875U/H890U (S29C4VL-
H870U).
LIQUID CRYSTAL CAMCORDER Hi 8 NTSC
LIQUID CRYSTAL CAMCORDER Hi
NTSC
8
VL-H860U
VL-H880U

Sharp VL-H860U Specifications

General

Brand	Sharp
Model	VL-H860U
Category	Camcorder
Language	English

Summary

IMPORTANT SERVICE NOTES

Safety Checks and Leakage Current Test

Outlines essential safety checks and leakage current testing procedures for video camera recorders.

SAFETY WARNINGS AND CAUTIONS

Electrical Shock and Fire Hazard Warnings

Warns users about electrical shock risks and fire hazards associated with appliance use.

User Serviceability and Internal Hazard Symbols

Explains symbols indicating internal hazards and limits on user serviceability.

CAMCORDER SPECIFICATIONS

Technical Specifications Overview

Details general technical specifications for the camcorder, AC adapter, and battery pack.

PART NAMES AND FUNCTIONS OVERVIEW

DISASSEMBLY PROCEDURES

VCR Parts Removal Guide

Details procedures for removing VCR parts, focusing on the LCD unit.

VCR AND CAMERA ADJUSTMENTS

EPROM IC Initial Settings

Outlines the initial settings and adjustments required for the EPROM IC.

VCR Section Adjustment Procedures

Details typical connections and servicing steps for VCR section adjustments.

Battery Shut-off Voltage Adjustment

Provides the method for adjusting the battery shut-off voltage.

LCD Display Circuit Adjustment

Outlines procedures for adjusting the LCD display circuit.

SYSTEM BLOCK DIAGRAMS

VCR Section Block Diagrams

Illustrates Y/C recording and playback signal flow within the VCR section.

Audio Block Diagram

Shows the block diagram for the audio circuits.

Head Amp Block Diagram

Illustrates the block diagram for the head amplifier circuit.

Power System Block Diagrams

Details power supply and system block diagrams.

Main Battery Circuit Diagram

Shows the block diagram for the main battery circuit.

SCHEMATIC DIAGRAMS

Overall Schematic Diagram

Provides a comprehensive schematic of the entire system's electrical connections.

Audio Circuit Schematic

Details the schematic diagram for the audio circuit.

Power and Charge Circuit Schematics

Illustrates schematics for power supply and battery charge circuits.

YC Process and Converter Circuit Schematics

Shows schematics for YC process and D/A converter circuits.

CDSADC and CMC Circuit Schematics

Details schematics for CDS/ADC and CMC circuits.

Lens Drive Circuit Schematic

Provides the schematic diagram for the lens drive system.

PRINTED WIRING BOARD ASSEMBLIES

VCR P.W.B. Component Layout

Shows component layout for the VCR PWB, component side.

Camera1 P.W.B. Component Layout

Shows component layout for the CAMERA1 PWB, component side.

Camera2 P.W.B. Component Layout

Shows component layout for the CAMERA2 PWB, component side.

REPLACEMENT PARTS LIST AND EXPLODED VIEWS

Electrical Parts List

Lists important electrical components like ICs, transistors, and diodes with part numbers.

Printed Wiring Board Assemblies

Lists part numbers for printed wiring board assemblies.

Integrated Circuits

Lists integrated circuits with part numbers and descriptions.

PACKING OF THE SET

Supplied Accessories

Lists accessories supplied with the set.

Packing Parts

Lists packing materials not intended for replacement.