Panasonic REV-1 - User Manual

ORDER NO. VRD9802005C2
, ServiceManua
Video Cassette Recorder
Panasonicml
Z-MECHANISMCHASSIS
I
INTRODUCTION
The Z-Mechanism chassis are built in several Panasonic VHS Video Cassette
Recorders from NV-SD and NV-HD series in 1998.
A
WARNING
.
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain
warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the
IJroductor
Dt’OdUCtSdealt with in this service information by anyone else could result in serious injury or death.
● “
(@1998 Matsushita Electric Industrial Co., Ltd.
Panasonic
All rights reserved. Unauthorized copying and
distribution is a violation of
law,

Summary

OUTLINE OF Z MECHANISM

The Tape Transport Path

Describes the path the tape takes through the mechanism.

Cassette Holder Unit

Details the cassette holder unit and its improvements.

Reel Brake

Explains the supply and take-up reel brake functions and construction.

Z Mechanism Components

Flow Chart of Loading Mechanism

Removal of Cassette Tape

Removal of Compulsory Loading

Details the method for removing the cassette using compulsory loading.

Manual Operation of Main Cam Gear Removal

Explains manual removal of the main cam gear.

Removal of Cassette Holder Unit & Mechanism Chassis

Removal of Cassette Holder Unit

Step-by-step instructions for removing the cassette holder unit.

Removal of Mechanism Chassis

Details the process for removing the main mechanism chassis.

Disassembly;Assembly Method for Mechanism

Disassembly of Mechanism

Detailed steps for disassembling various mechanism components.

Assembly and Phase Adjustment of Mechanism

Procedures for reassembling and phase-aligning the mechanism.

Assembly of Mechanism Chassis

Provides steps for assembling the main mechanism chassis and associated components.

Mechanical Adjustment Procedures

Tension Post Position Adjustment

Procedure to adjust the tension post position for proper tape path.

Back Tension Adjustment

Method for measuring and adjusting back tension.

P2 and P3 Posts Adjustment (Preadjustment)

Tape Interchangeability Adjustment Procedures

Self-Test Indication Display

Fault Indication Codes and Remedies

Service Information Display

Turning on Service Information Display

Use of Service Modes

Service Information Number

Test Mode

Timing Chart from Mode SW to System Control IC

System Control Circuit & Mechanism Control Circuit

Supply and Take-up Sensors

Safety Tab Switch

Dew Sensor

Loading;Unloading Mechanism Lock

Cassette Loading;Unloading Lock

Reel Lock Operation

Cylinder Lock

Mode Transition

Automatic Functions

Panasonic REV-1 Specifications

General

Brand	Panasonic
Model	REV-1
Category	VCR
Language	English