SATO GL4XXE Manual de Serviço Página 146

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Unit 7: Replacement Procedures
GL4xxe Series Service Manual
7-7
OPERATION PANEL PCB REPLACEMENT
This circuit board provides the user interaction functionality via operational buttons and keys, as well as the LCD.
Before starting, turn the printer OFF and observe applicable lockout-tagout procedures.
1. Remove the printer’s front cover by releasing the thumbscrew (1) shown in Figure 7-5a. Slide the cover (2)
toward the electrical side of the printer (see arrows b and c) while prying it away from the main chassis.
2. Disconnect the cable set marked (3) in Figure 7-5b, and remove screw (4) before pulling the Operation
Panel (5) up and outward as shown by the black arrows.
3. The circuit board for the LCD panel circuit board (7) can be removed via three Bind P tight screws (6).
4. After replacing the necessary panels, reverse the disassembly procedure and perform adjustments to the
LCD contrast, Pitch Sensor, Print Density, Offset, Pitch and Buzzer Volume as necessary.
Figure 7-5a, Removing the front cover
Figure 7-5b, Removing the Operation Panel and LCD panel circuit board
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