Bosch DS7400Xi User manual

DS7400Xi ROM Update Kit

Installation Instructions

Static electricity can damage the read only

memory (ROM) chip. Before handling the

chip, discharge any static electricity within

your body by touching the grounded

DS7400Xi Enclosure.

Do not touch the ROM chip pins when

handling it.

Note the original ROM chip’s orientation

before removing it from the control panel.

1.0 Description

Use the ROM Update Kit when updating the

DS7400Xi Control Panel’s system software. This kit

has one ROM chip that replaces an existing chip on

the DS7400Xi Control Panel’s printed circuit board

(PCB).

2.0 Installation

1. Remove all power from the DS7400Xi Control

Panel by unplugging the transformer and

removing the red lead from the battery.

2. Locate the original DS7400Xi ROM chip on

the control panel (Figure 1).

3. Before removing the existing chip, note the

orientation of the chip notch. Some notches are

at the top of the control panel and others are at

the bottom. Orient the new chip the same way

as the one you are replacing.

4. Remove the old chip from the control panel by

inserting a flat head screwdriver under the chip

and gently prying it up.

5. Insert the new chip into the vacant socket,

ensuring the notch in the new chip faces the

same way as the notch in the original chip and

all pins are correctly seated in the socket.

6. If the pins of the new chip are spread too wide

to fit into the socket, lay the chip on its side and

gently roll it inward to press the pins toward the

body of the chip.

7. Restore power to the DS7400Xi by plugging in

the red battery lead and plugging in the

transformer.

8. Discard the original ROM chip.

9. Refer to the DS7400Xi Reference Guide to

complete control panel installation and

programming.

Figure 1: ROM Chip Location and Orientation

12 3

1 - DS7400Xi Control Panel

2 - Original ROM chip location

3 - ROM chip orientation

4 - Notch at top of ROM chip

5 - Notch at bottom of ROM chip

130 Perinton Parkway, Fairport, NY 14450-9199 USA

Customer Service: (800) 289-0096; Technical Support: (888) 886-6189

30944F

Installation Instructions

2/0

DS7400X

Page 2 of

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