SECTION 503-550-1 01
5.
MAINTENANCE
Caution:
Disconnect power to 39A power
unit before working on set.
5.01
Maintenance of the 2 671B1M telephone set
should be limited to a physical check of
wiring shown in Fig.
13
and replacement of the
items listed under the Ordering Guide as:
eModular items
eReplaceable components
eOptions
eAssociated items
5.02
Detailed information on the 51B dial is
contained in Division 812 .
Maintenance of
the 51B dial is not recommended; if defective,
replace set.
TABLE B
FEATURE COMBINATION CONNECTIONS
FEATURE
RINGER
BUZZER
HOLD
COMBINATION
LAMP
Ringer and
Factory-
(V- BL)
buzzer
wired
( BL-V)
Ringer and
Factory-
(V-BL)
Hold Lamp
wired
( BL-V)
Note
Buzzer and
(V- BL)
(Y-S)
(S-Y)
Hold Lamp
( BL-V)
Note
Note:
Connect to (Y-G) (G-Y) hold lamp
leads from pink plug using spare terminals
(2 of rear board and
1
of front board) or
D- 1 61488 connectors.
Page 10
5.03
When replacing set, install customer's indexed
cartridge in new set to avoid necessity of
entering listings on new cartridge.
5.04
If 51B dial is not operating properly:
( 1) Check power supply to set.
(2) Look for foreign material in gears.
(3) Make certain interlock switch is closed.
(4) It may be necessary to reset dialer by
removing cartridge and operating C ALL
button.
fr
<
E
0
Resetting the dialer, by removing the
tape cartridge and operating the CALL
b u tton, m ay be necessary if the
RECORD or CALL button is used
while the entry space is misaligned
by 113 or more of its width and the
directory selector wheel is moved
causing the unit to jam.
TABLE.C
SINGLE-LINE SET CONNECTIONS
MOUNTING CORD ARRANGEMENTS
(Note 2)
WITHOUT
WITH
MTG
SPEAKERPHONE
SPEAKERPHONE
CORD
D10S OR D10T
(NOTE 1)
COLOR
MTG CORD
D20L OR D20M
MTG CORD
W-BL
T
T
BL-W
R
R
W -0
A or H
A or H
0-W
A1 or B
Al or B
Y-BL
AC
AC
BL-Y
AC
AC
Y-0
Fl
0-Y
Al
Y-G
Pl
G-Y
s
Y-S
B or Bl
B or Bl
S-Y
R or Rl
R or R1
SSP S03-550-101-i03_1970-12-10.jpg Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado Apr 29,2012 21:38:25
