Comen STAR8000C patient monitor Keypad 050-000193-00 8000C_KEY_A Backlight Driver

Comen STAR8000C patient monitor Keypad 050-000193-00 8000C_KEY_A Backlight Driver

 
 
► Brief Introduction
 

This is the keypad of the Comen STAR8000C patient monitor. The keypad's part number is 050-000193-00. It is the main control panel of the device, with multiple buttons representing different functions, such as power on/off, mute, print start, and alarm settings, simplifying the operation process and improving the efficiency of medical staff.

The keypad is made of a long, rectangular PCB board, its size perfectly matching the device's button area. It has a black port for connecting to the motherboard, establishing a connection and transmitting button signals.

 
 
► Features

1. Acquisition and Transmission of Button Signals

It can receive external pressure signals and transmit them to the motherboard with rapid response, enabling basic operations such as menu navigation and print settings, ensuring sensitive operation without triggering.

2. Backlight Driver and Status Indicator for Buttons

The button board integrates a backlight driver circuit, providing stable power to the button indicator lights and illuminating the backlights of function keys such as the power button and alarm/mute button. This allows medical staff to quickly identify the button positions in low-light environments and provides feedback on the device's operating status via indicator lights. This design also reduces cabling and optimizes internal space.

3. Dual Signal Channel Design

The button board's design features independent button signal channels. Each button's signal acquisition circuit is independent. Even if the contact or circuit of one button is damaged, the other buttons will still function normally, allowing for more precise fault location during maintenance.

4. Overvoltage Protection Circuit

The board integrates a small overvoltage protection component, effectively preventing power fluctuations from directly burning out the chips on the button board during power-on or when the mains voltage is unstable. This extends the button board's lifespan and avoids frequent replacements.

► Parameters
 

 
 
► Product Picture
 


 

►FAQ
 

Q1: Only some of the device's buttons are malfunctioning, while the others are working normally. Is the button board faulty?

A1: It's most likely that the circuitry or contact of the corresponding button on the button board is damaged, or it could be due to localized aging of the button membrane. Q1: Can I first test by replacing the key membrane? If it still doesn't work, it indicates a keypad board malfunction and needs replacement.

Q2: After replacing the keypad board, the backlight of the alarm/mute button keeps flashing and can't be turned off. Is this normal?

A2: No, this is not normal. This usually indicates a problem with the backlight driver chip or corresponding circuit on the keypad board. We recommend checking the specific cause. Our parts undergo functional testing before shipment to ensure they function perfectly.

Q3: Can I buy the keypad board separately and continue using my old key membrane? Does it require additional calibration?

A3: You can continue using your old key membrane; no calibration is needed. The contact positions and sizes of this keypad board are fixed. As long as the membrane is not torn or deformed, it will fit perfectly.

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