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UP-980
Service manual
Sony UP-980 Service Manual
Video graphic printer
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User manual
(204 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
1 Operating Instructions
2 Service Overview
Pc Board Location
REMOVAL of the COVER and the PANELS ou
Removal of the Top Cover O
Removal of the Door Panel .0
REMOVAL of the MAIN PARTS .Uuuitcceccecccceccecsecceccesecseeseesecesessecescenss
Removal of the Mechanical Block .0
Removal of the MA-91 Board and the Switching Regulator
Removal of the Thermal Head
3 Electrical Alignment
Video Level Adjustment
Brightness and Contrast Adjustment
Door Lock Sensor Adjustment
Head Voltage Adjustment
4 Circuit Operation Description
4-1. Video Circuit
Input Trap Filter Circuit, C-SYNC Process Circuit
Sharpness and AGC Circuit
Brightness, Contrast Control and A/D Conversion
OSCILLATOR CIRCUIT Oo. Cccscssesssscesescsesessssssssescsesessscsseseseevsvecseeeeeeaes
Serial Data Reading from System Control .0
Writing to the Frame Memoly .00
Thermal Head Control and One Line Memoty
MENU CONTROL SECTION 0C
Watch of Various Keys O
4-4-2. LCD (Liquid Crystal Display) Control
EEPROM Control 0
D/A Converter Control O
System Control Section .0
Transmission with IC201 (Key and Menu Control CPU)
Platen Motor Control Oo
Head up and down Control .0
Door Open and Close Control
Paper Cutter Comtrol Oo
Uc)
Watch of Paper Sensor 00
Watch of the Head Temperature Sensor
4-5-9. Analog Circuit Section Control
Gate Array
Basic Operation
Temperature Compensation
Line Number Correction
5 Troubleshooting
Liquid-Crystal Display (Lcd) Is out of Order
The Setting Is Not Loaded as Saved
Paper Check" Is out of Order
Cutter Is out of Order
Head Operation (up & Down) Is out of Order
Paper Feeding Is out of Order
Door (Opening & Closing) Is out of Order
7 Spare Parts
J-1. Notes on Repair Parts
Ornamental Block & Mechanical BLOCK 20.0.0
Ornamental Block & Switching Regulator
Chassis Block Assy, Rav
7-3
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SONTY.
VIDEO GRAPHIC PRINTER
UP-980
UP-980CE
SERVICE MANUAL
1st Edition
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