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REI'IOVE FIRST
4B4A KTU FROI'I
JS
PLUG HK- 1 4
INTO JS
A l l VOLTAGE
SUPPLY LAI'IPS
ON
RTC LAI'IP
ON
SCN LAI'IP
FLASHING
A LAI'IP
ON
YES
BSP S18-411-1 00-i01 1978-08-4 S.jpg
CHECK FUSING
NO
AND POWER
CONNECTIONS
REPLACE 4BSA KTU ,
NO
4B5A KTU OR
POWER SUPPLY
NO
REPLACE
4B5A KTU
REI'IOVE 4B4A AND
4BBA KTUs ONE AT
NO
A TII'IE UNTIL LAMP
LIGHTS . REPLACE
DEFECTIVE KTU
Fig. 1 9-HK- 1 4 Diagnostic Circuit Pack Preparation
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Oct 15, 2012 2 1 : 11:33
ISS 1 , SECTION 5 1 8-4 1 1 - 1 00
CONNECT HAND
TEST SET TO
TERI'IINALS
TURN SWITCH
TO ON
NO
LINK LAI'IP
ON
DIAL 05
DIGIT
SHOWS
1
NO
ON VISUAL
DISPLAY
READY FOR
TESTS
SYSTEI'I I'IAY BE
BUSY - IF NOT ,
REPLACE 4BSA KTU
TURN BOARD OFF .
RECHECK STATUS
LAI'IPS . RESTART
PROCEDURE .
Page 45
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