Formatter to control panel communication interruptions

The firmware does not fully initialize and configure the control panel interface.

The control panel is not functioning (either a failed component or power problem).

Interface cabling between the formatter and control panel is damaged or disconnected.

TIP: If the heartbeat LED is illuminated—by an error condition or normal operation—the formatter is fully seated and the power is on. The pins for the LED circuit in the formatter connector are recessed so that this LED will not illuminate unless the formatter is fully seated.

The heartbeat LED operates according to the product state. When the product is initializing, see Heartbeat LED, product initialization on page 247. When the product is in Ready mode, see Connectivity LED, product operating on page 249.

Heartbeat LED, product initialization

The following table describes the heartbeat LED operation while the product is executing the firmware boot process.

NOTE: When the initialization process completes the heartbeat LED should be illuminated solid green —the LED is off if the product is in Sleep mode.

If after initialization the heartbeat LED is not solid green, see Connectivity LED, product operating on page 249.

Table 3-2Heartbeat LED, product initialization

Product initializing

Heartbeat LED, normal state

Heartbeat LED, error state

state

 

 

 

 

 

 

No power (power cord

Off

Not applicable

unplugged or power

 

 

 

switch off)

 

 

 

 

 

 

 

Power on (immediately

Red, solid

Red, solid

 

after the power switch

Duration should be 1 second or less

Firmware error; problem finding hardware

pressed)

 

 

and booting the serial peripheral interface

 

 

flash memory

 

 

Boot process halted

 

 

Replace the formatter.

 

 

 

 

Serial peripheral

Green, solid

Red, solid

 

interface (SPI) flash

 

Firmware error; problem corrupt or missing

memory boot

 

 

 

SPI flash memory

 

 

Boot process halted

 

 

Replace the formatter.

 

 

 

 

ENWW

Tools for troubleshooting 247

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Image 283
HP Enterprise 500 manual Formatter to control panel communication interruptions, Heartbeat LED, product initialization