Lifecycle 9100 and 9500HR Series Exercise Bikes
ELECTRONICS OVERVIEW - ALTERNATOR CONTROL BOARD - Model LC9100
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Functional Description
The Alternator Control Board is
designed to regulate the alternator
voltage by modulating the field
current. It regulates the pass
current (RPM signal) from the
Alternator to the Console, and the
pass current form the alternator to
the load resistor while providing
supply voltage for the console while
charging the system battery.
o
o
o
--c:::::J--
--c:::::J--
1
--c:::::J-- 2
--c:::::J-- 3
--c:::::J--
4
--c:::::J-- 5
--c:::::J--
6
--c:::::J--
--c:::::J--
--c:::::J--
'" '"
§
o
0
Connector
Location
Pin
Functional Description
P1 is a Molex 9 pin connector
~
1
RPM (0-7.5 VDC)
that connects to the Console
2
VBAT (9VDC)
3
NOT USED (BLANK)
4
LOAD
5
START
~)
6
GROUND
?l
7
GROUND
~
8
ALTREGLO (9-11 VDC)
?6
9
VSYS (7-8 VDC)
u...=....
P2 is a 14 pin connector that
1
FLD RTN
connects to the Alternator and
1
8
1
2
FIELD (1-4 VDC)
Power Resistor
3
VALT (10 VDC)
9
2
4
LOAD
1
10 3
5
LOAD
111
6
GROUND
4
7
GROUND
RPM (0-7.5VDC)
8
12
5
9
VALT
6
10
LOAD
1
13
11
LOAD
1
14 7
12
GROUND
GROUND
13
14
GROUND
•
•
Connectors and Pin
Connections
P1
P2
7