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TO HVSU
CONNECTOR
ON MAIN PCB
INSIDE
TELEPHONE
HSVI
8
/' "
Q i
FIGURE 4-27-HVSI/HVSU INSTALLATION
HKT65-20KSD
ROOM NOISE
I
HHEU
\
CONNECTOR
I
HVSU
-WIRE
CONNECTOR
W203
FIGURE 4-28
ELECTRONIC
TELEPHONE
PC8 CONNECTIONS
INSTALLATION INSTRUCTIONS
SECTION 200-255-204
FEBRUARY 1992
5.25 Two pairs of the provided 3-pair modular line
connector connect the electronic telephone to the
DEKT port, and the other pair connects it to the
NOCU PCB.
5.26 NOCU connection details are shown in Figure
4-29.
5.30 Carbon Handset Transmitter Installation
5.31
If a customer-supplied carbon-type handset
is used with the 6500-series electronic telephone,
it is necessary to cut two jumper straps located on
the main PCB inside the telephone. Cut the jump-
ers as follows:
5.32 Loosen the four captive screws securing the
electronic telephone' s base, and remove the base
(Figure 4-24).
5.33 Locate the two carbon straps
W201
and W202
(Figure 4-30). Cut both straps.
5.34 Cut the W401 strap for proper LCD functions
in A.05 (and below) software.
5.35 Reinstall the electronic telephone' s base and
secure using the four captive screws.
5.36 Remove the Toshiba handset and connect
the carbon-type handset.
5.40 HHEU Installation
5.41
The HHEU option provides the interface and
control for a customer-supplied headset.
5.42 Loosen the four captive screws securing the
electronic telephone' s mounting base, and remove
the base as shown in Figure 4-24.
5.43 Using a screwdriver or other suitable tool,
remove the plastic access tab located on the back
of the mounting base (Figure 4-31). The HHEU
modular connector is accessed through this open-
ing.
5.44
Set
HEADSET/EXT IO
switch SW601 on
the HHEU PCB (Figure 4-32) to the
HEADSET
position.
4-23
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