NEC nd-20292 manual Battery Backup

should be unplugged from the PC-8300 first.

‘, NOTE& Be certain that only the PC-8271A-01 is used. Damage to the PC-8300 personal computer may be caused by the use of any other adapter.

NOTE 3: Before connecting the AC power adapter to the PC-8300, make sure to turn the computer and all the peripherals OFF.

740.3BATTERY BACKUP

1.Make sure the power switch located on the right side of the PC-8300 is set to the OFF position. See Figure 700-14 PC-8300 Power Switch.

Figure 700-14 PC-8300 Power Switch

2.Remove the cover of the battery compartment. See Figure 700-15 PC-8300 Battery Compartment Cover.

Figure 700-15 PC-8300 Battery Compartment Cover

3.Install four AA size dry batteries in the battery compartment. See Figure 700-16 PC-8300 Battery Installation.

4.Replace the cover of the battery compartment.

5.Turn ON the battery backup switch (located on the bottom of the PC-8300). See Figure 700-17 PC- 8300 Battery Backup Switch.

NOTE 1: As outlined in the section on batteries, the backup power source consists of internal nickel cadmium batteries. The Backup Power switch located on the bottom of the

ND-20292

CHAPTER 7

APRIL, 1990

Figure 700-16 PC-8300 Battery Installation

Figure 700-17 PC-8300 Battery Backup Switch

PC-8300 must be in the ON position for the computer to operate.

NOTE 2: If the PC-8300 is stored and is unused for more than 30 days, the backup power switch should be set to OFF to prevent the total discharge of the batteries and deterioration in performance.

740.4FLOPPY DISK UNIT PC-8231A

CONNECTION

1.Power to the micro floppy disk unit is supplied by an AC pack (included) or by an optional battery pack. When using the unit in the home or office, AC power can be obtained by inserting the AC pack. See Figure 700-18 Inserting the AC Power Pack. Insert the AC pack into the device until it clicks, thus making sure that it will not pop out during use. The inlet is usually covered by a sliding cover.

2.The lid of the PC-8231A is opened by the slide lock buttons on the left and right side of the unit. See Figure 700-19 Opening the PC-8231A Lid. Place your hands on both of these buttons and lift the top half of the unit while pulling these slide lock

buttons. Raise the front side of the unit approximately 5cm and the lid will automatically open and the front side of the unit will slowly come down. The lid will support the disk unit in the open position.

700-7