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HANDSET TEST

HANDSET

To test the handset by itself, loop the keypad serial line to

the Display serial line by connecting P1-1 to P1-3 on a test
connector (refer to Figure 2). Apply n12V to P1-5 and
ground P1-2. Attach the connector on the handset cord to the
test connector and turn the power on.

HANDSET SELFTEST

The handset test consists of tests of: RAM, display, back-

light, call timer, keypad, hookswitch and serial communica-
tions. 

The test sequence is as follows: 

Step

Procedure

Display

1.

Power Up With 

SELFTEST

Loopback connected.

2.

After 1.6 seconds RAM

RAM PASS or 

 test is complete

RAM FAIL

3.

Start display test Step

All segments 

through Display 

and common 0

After 1.6 seconds

All segments 
and common 2

After 1.6 seconds

All segments 
and common 3

After 1.6 seconds

All segments 
and common 1

After 1.6 seconds

segments 2, 6, 10, 
14, 18, 22, 26, 30
and all commons

 

After 1.6 seconds

segments 0, 4, 8, 
12, 16, 20, 24, 28 
and all commons 

After 1.6 seconds

segments 3, 7, 11, 
15, 19, 23, 27, 31 
and all commons 

After 1.6 seconds

segments 1, 5, 9, 
13, 17, 21, 25, 29 
and all commons 

4.

Backlight Test

BACKLITE

After 1.6 seconds

LITE ON

After 1.6 seconds

LITE OFF

5.

Call Timer Running

 000 00 0

Any key, except END
will stop the CALL 
TIMER
 and go to the 
keypad test.

6.

Keypad Test (Audio can be 
tested here) Any key can be
pushed in any order:

Push 1

KEY 1

Push 2

KEY 2

.....

....

Push 0

KEY 0

Push END

End key pad test

Push CLR

KEY CLR

Push SND

KEY SND

Push STO

KEY STO

Push FCN

KEY FCN

Push RCL

KEY RCL

Push A-Z

KEY ALP

Push VOL +

KEY VUP

Push VOL -

KEY VDN

On Hook to Off Hook

OFF HOOK

Off Hook to On Hook

ON HOOK

The END key ends the 
Keypad test

7.

RAM status (70=pass, 
71=fail) is sent on the key 
pad serial line

 8.

Serial communications test
(Audio can be tested here)

Serial communication is tested
by pushing keys and displaying 
as follows:

With entries scrolling across the 
display, as many keys as needed 
can be pushed (F is key release)

F

KEY: 0

F0F

1

F0F1F

2

F0F1F2F

3

0F1F2F3F

4

1F2F3F4F

5

2F3F4F5F

6

3F4F5F6F

7

4F5F6F7F

8

5F6F7F8F

9

6F7F8F9F

VOL -

7F8F9FAF

VOL +

ROAM Indicator Flash

STORE

8F9FAFCF

SEND

9FAFCF-F

*

AFCF-FHF

#

CF-FHF?F

A-Z

-FHF?F*F

FCN

HF?F*FAF

A

?F*FAFBF

B

*FAFBFCF

C

AFBFCFDF

PTT

BFCFDFEF

PTT Released

CFDFEFGF

On Hook

FDFEFGFH

Off Hook

DFEFGFHI

RCL

FEFGFHI F

END

EFGFHI FF

CLR

FGFHI FFF

9.

To complete the test, 
power down and remove
the Loopback. 

Figure 2 - Test Connection

LBI-38412

2

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