Nokia 447PRO User Manual

447R
16
3. Controlling the Memory for Picture Adjustments
Thepictureadjustmentvaluesarestoredinnon-volatilememory.Thememoryhasseparatedareas
for U ser Adjustments and for Factory Adjustments.
3.1. Memory for U ser Adjustments
3.1.1. Adjustment
1
If there are values available in the memory for user a djustments, corresponding to the present
timing signals, they are always used.
2
New user made adjustments are stored to the memory for user adjustments.
3.1.2. Resetting the User made settings
3
User memory can be emptied from user made settings. Resetting affects only the timing
which is currently active. The reset function is inhibited if no corresponding factory preset dis-
play mode exists.
After resetting all picture properties are coming from memory for factory adjustments.
3.2. Memory for Factory Adjustments
3.2.1. Adjustment
4
Factory adjustments can be updated with service menu in service mode. If there is no location in
factory adjustment memory for timings currently in use, the adjustment affects the memory for
user adjustments.
- If the memory location mentioned in case
1
is empty, the picture adjustment values are read
from memory for factory adjustments. Factory adjustments, corresponding to the current tim-
ings, are transferred to user memory if any picture property is adjusted. After that the operation
is as in case
1
.
Memory for Basic
Adjustments,
NCE642
1
4
3
4
The memory can be
updated with Service
menu in Service Mode
The memory can be
updated with User Menu
in User Mode
Initialization
Memory for
User
Adjustments
SMA IC203
Memory for
Factory
Adjustments
SMA IC203
Preset
Recall
Geometry
image
Storing
2
Refer to the chapter ”Service Mode”

Nokia 447PRO Specifications

General

Brand	Nokia
Model	447PRO
Category	Monitor
Language	English

Summary

Product Overview

Technical Specifications

Detailed technical parameters of the monitor.

Monitor Connection

Instructions for connecting the monitor.

Menu Navigation

Guide to navigating the on-screen menu.

Site Preparation

Location Recommendations

Recommendations for monitor placement.

Troubleshooting Common Issues

Common problems and their solutions.

PowerSaver Operation Check

Verifying the power saving feature.

Memory Management

User Adjustments Memory

Managing user-saved picture settings.

Factory Adjustments Memory

Managing factory-set picture adjustments.

Service Mode Operations

Grouping of Adjustments

Categorization of service adjustments.

Service Menu Navigation

Navigating and using the service menu.

Accessing Service Mode

Steps to enter the service mode.

Geometry Adjustments

Submenu for picture geometry adjustments.

Grey Scale Adjustments

Submenu for adjusting color temperature and tint.

Initializing Replacement ICs

Procedure for initializing replacement ICs.

Workshop Maintenance

Important Safety Notice

Critical safety information for repairs.

Discharging the CRT

Procedure to safely discharge the CRT.

ESD-Sensitive Parts Handling

Handling electrostatic discharge sensitive components.

Required Test Equipment

Required tools for adjustments and testing.

Test Patterns Description

Visual patterns used for calibration and testing.

Image Performance Specifications

Active Picture Size and Location

Measuring the active display area dimensions.

Geometrical Distortion Assessment

Assessing picture shape and alignment accuracy.

Convergence Alignment

Aligning the red, green, and blue electron beams.

Adjustment Procedure

Adjustment Flow Diagram

Visual guide to the adjustment process.

Preliminary Preparations

Steps before starting adjustments.

High Voltage Adjustment

Procedure for measuring and adjusting high voltage.

Geometry Adjustments

Adjusting picture size, position, and shape.

Grey Scale Adjustments

Adjusting color balance at different luminance levels.

Most Dominant Colour Identification

Identifying the primary color tone for adjustment.

Low Light Grey Scale

Grey scale adjustment for low brightness levels.

High Light Grey Scale

Grey scale adjustment for high brightness levels.

Convergence Adjustments

Fine-tuning beam alignment for accurate colors.

Static Convergence

Adjusting convergence using magnet rings.

Dynamic Convergence

Adjusting convergence using deflection yoke trimmers.

Screen and Faceplate Blemishes

Screen Quality Inspection

General assessment of screen surface quality.

Face Defects Limits

Allowed limits for screen defects like spots.

Glass Blemishes Types

Types of imperfections in the glass surface.

Scratches Specifications

Allowed length and width of scratches.