Section 9 – Servicing (Continued)
105
NOTE
IF THE BATTERIES ARE INSTALLED BACKWARDS IN THE MEMBRANE TRANSMITTER, THE
FUSE IN THE BATTERY COMPARTMENT WILL BLOW TO PROTECT THE INTERNAL
CIRCUITRY.
9-3.4.
Battery Fusing.
The Membrane Transmitter is protected from reverse battery polarity and shorts by a fuse, part number
F2712-1.5 (1.5 Amp, 250V, Fast Acting, 2 AG). If the batteries are installed in backwards this fuse will
blow to protect the internal electronics
9-4.
Pendant Transmitter Servicing.
The Single-Speed or the 2-Speed 10K12 Pendant Transmitter may be used with the 10K6/9 Receiver. The
Pendant Transmitter M/C Board is shown in Figure 9-4. Refer to the following paragraphs for Servicing
Procedures.
1
A
B
ON
ON
1
SW1
SW2
SW3
SW4
C
D
TP4
GND
TP1
TP2
+REF
JU8
JU5
JU3
JU2 JU1
J6
J1
J2
J3
J4
J5
R1
1
5.
7.
4.
2.
3.
8.
1.
9.
10.
6.
11.
1. ) J1 Pin 1 Data Input.
2. ) Stepless Switch Level
Adjustment. (Factory Set).
3. ) Battery Connector.
4. ) SW4 “D” Mode Switch.
5. ) SW2 “A” Access Code
Switch.
6. ) SW1 “B” Access Code
Switch.
7. ) SW3 “C” Configuration
Switch. SW3 position 8 “ON”
disables Time-out-timer.
8. ) Test Point 1 External
Trigger for Data.
9. ) Software version label.
10. ) Flash ROM.
11. ) Flash ROM Serial
Programming Port.
Figure 9-4.
Pendant
Transmitter M/C
Module E10636
1
1
ON
ON
NOTE
TO DISABLE TIME-
OUT-TIMER IN TRANS-
MITTER TURN SW3
POSITION 3 TO ON.
