Bell 6B KTS Manual page 46

SECTION 5 1 8-4 1 1 - 1 00
DIGIT SHOWS
1
ON VISUAL
DISPLAY
YES
LINK 1
LAMP ON
YES
PASS
LAI'IP ON
YES
DIAL TONE
HEARD
YES
LINK 2
LAI'IP ON
YES
PASS
LAI'IP ON
YES
DIAL TONE
HEARD
YES
IS SYSTEM
EQUIPPED WITH
TWO 487 A KTUs
NO
Page 46
BSP 518-411-100-i01_1978-08-46.jpg
SEE FIGURE FOR
NO
CIRCUIT PACK
PREPARA liON
REPLACE 486A
NO
KTU OR FIRST
487A KTU
REPLACE
NO
FIRST
487A KTU
REPLACE 486A KTU
OR FIRST 487A KTU.
NO
REI'IOVE 484A AND
488A KTUs ONE AT
TII'IE UNTIL DIAL
TONE IS HEARD .
REPLACE 486A
NO
KTU OR FIRST
487A KTU
REPLACE
NO
FIRST
487A KTU
REPLACE 486A KTU
OR FIRST 487A KTU .
NO
REMOVE 484A AND
488A KTUs ONE AT
TIME UNTIL DIAL
TONE IS HEARD .
YES
Fig. 20- Test I Sequence-Link Operation and Dial Tone
Scanned by Fra n k H arrell. (Cowboy Frank) Castle Rock. Colorado Oct 15. 2012 2 1 : 1 1 : 5 1
NO
LINK 3
LAMP ON
YES
NO
PASS
LAMP ON
YES
REPLACE 486A KTU
OR SECOND 487A KTU .
NO
DIAL TONE REMOVE 484A AND
HEARD
488A KTUs ONE AT
TIME UNTIL DIAL
TONE IS HEARD.
YES
NO
LINK 4
LAMP ON
YES
NO
PASS
LAI'IP ON
YES
REPLACE 486A KTU
OR SECOND 487A KTU .
NO
DIAL TONE REI'IOVE 484A AND
HEARD
488A KTUs ONE AT
TIME UNTIL DIAL
TONE IS HEARD.
YES
END OF
1
TEST
REPLACE 486A
KTU OR SECOND
487A KTU
REPLACE
SECOND
487A KTU
REPLACE 486A
KTU OR SECOND
487A KTU
REPLACE
SECOND
487A KTU