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Sony UP-897MD Service Manual

Sony UP-897MD
68 pages
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SONTY.
VIDEO
GRAPHIC
PRINTER
UP-897MD
SERVICE
MANUAL
1st
Edition

Table of Contents

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Sony UP-897MD Specifications

General IconGeneral
Resolution325 dpi
Power RequirementsAC 100 V to 240 V, 50/60 Hz
Operating Temperature5°C to 35°C (41°F to 95°F)
Operating Humidity20% to 80% (non-condensing)
Paper Size110 mm width
InterfaceHigh Speed USB
Gradation256 levels
Print Size89 mm x 127 mm (3.5" x 5")
Safety ComplianceUL
Print TechnologyDirect Thermal Printing
Print SpeedApprox. 2.0 seconds per page

Summary

Service Overview

Main Parts Replacement Procedures

Detailed steps for replacing major internal components like thermal head, motors, and belts.

Electrical Alignment

Calibration and Conductivity Checks

Calibrating brightness/contrast and checking button conductivity.

Brightness, Contrast, and Head Voltage Adjustment

Detailed steps for adjusting display brightness, contrast, and head voltage.

Initialization and Firmware Upgrade

Resetting print count history and updating the unit's firmware.

Circuit Description

Troubleshooting

Print Quality and Density Issues

Flowcharts for diagnosing unsatisfactory print results and density problems.

Paper Feed and Thermal Head Operation Problems

Flowcharts for diagnosing paper sensor and thermal head movement issues.

Service Mode Functions

System Block Diagram

Schematic Diagrams

MA-132 Schematic Diagrams

Detailed circuit diagrams for the MA-132 board (multiple pages).

Board Layouts

Safety Check-out and Leakage Test

Safety Check-out Procedures

Procedures to ensure the unit is safe for customer use after repairs.

Leakage Test Procedure

Detailed method for measuring AC leakage current to prevent electric shock.

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