1
PAGE
14, 37
FAULT ON
STATION
* *
. CHECK THAT STATION IS WIRED
WIRE
C O R R E C T L Y ( F I G S .
l
WT
. CHECK THAT 610
OF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . *
BL
STATION IS CABLED CORRECTLY
*
RD
FROM THE SDF.
BK
CHECK
OF FAULTY
WIRE
STATION A B PAIRS AT THE
l
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WT
610 SOCKET.
B PAIR
P I N
2
6
1
5
1 3
1 . 5
4 0
ARE
NO
VOLTAGES
CORRECT
*
YES
.
FUSE ON ESTB
AND REP
L
ACE IF NECESSARY.
. RECHECK VOLTAGES.
. . . . . .
. IF STILL WRONG, CHANGE ESTB
BOARD.
REFER TO NOTE 2 AT THE END OF
THE F
L
OW CHARTS.
DOES
NO
STATION HAVE
SIDE TONE
*
CHECK HANDSET CORD, TRANS-
*
MITTER, RECEIVER AND INTERNAL
* WIRING BETWEEN STATION AND
HANDSET.
R E F E R F I G . 4 9 50.
l
CAN
STATION MAKE
A N
NO
*
CHECK RIBBON CONNECTOR IN
YES
STATION.
. CHECK THE LINE CORD IS
l
W I R E D T O T H E 6 0 3
AND THE STATION.
WT
2
B
L
PIN 6
RD
PIN 1
BK LBK
5
l
l * * * * * * * * * * * * * * * *
16
P A G E F 5
l
F4
1 3 3
I S S U E 1