AT&T 3.0 manual Replacing a Ring Generator

Power Supply Problems

Steps 1 through 3: Open the power supply

WIRE

C L I P

Step 4 Detach cable from wire clip

Step 7:

Remove the four screws (one in each comer of the ring generator)

RING GENERATOR UNIT

WIRE

CLIP

Step 4 Detach cable from wire clip

Grip here

P202

			P101
				G r i p
				here
				Step 6:
				Disconnect the
				P101 header
				(grip the sides and
	●	●		pull forcefully)
	o	o
Step 5.
		- - -	-

Disconnect the P202	Step 18:
	Wire manager: make
header (pry the clip away
	sure the modification
from the header and
	label is attached
pull the header straight up)
	when finished;
	“Equipped with
	1296 Freq Gen”

Figure 4-2. Replacing a Ring Generator

18 Verify that the modification label (Equipped with 129B Freq Gen) is attached to the front of the power supply (shown in Figure 4-2).

If not, attach the label supplied with the new ring generator.

19Reinstall the power supply; follow Steps 5-8 in “Replacing the Power Supply,” later in this chapter.

Control Unit Problems 4-7