Membrane Panel Button Codes; Membrane Panel Bypass Test - Landice L Series Diagnostic And Service Manual

L series home and commercial treadmill

Hide thumbs Also See for L Series:

Instructions (5 pages)

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

Table Of Contents

128

Table of Contents

CODE

Executive

Trainer

LEFT 1 (TOP)

LEFT 2

LEFT 3

LEFT 4 (BOTTOM)

RIGHT 1 (TOP)

RIGHT 2

RIGHT 3

RIGHT 4 (BOTTOM)

START

PAUSE

FAST

SLOW

DOWN

Conducting a membrane bypass test can also test the functionality of a membrane panel.

Membrane Panel Bypass Test

When a treadmill with a membrane experiences a loss in power to the upper display, such as when a

customer presses the START button and nothing happens, a possible cause of this is a bad membrane

panel. A membrane panel bypass test can verify this. A membrane panel bypass test is conducted by

literally taking the membrane and bypassing its functions. The membrane panel has small micro switches

laminated inside that transmit the user's commands into treadmill functions. These functions can be

simulated by means of a membrane bypass:

1. Disconnect the silver foil ribbon cable from the membrane panel.

2. Remove the membrane panel completely from the upper display board.

3. Use a DRY towel or a terry-cloth to wrap over the open area of the control panel frame. Place the

upper display board with wire harness still attached on top of the towel to prevent it from touching any

metal.

4. Look at the pins where the silver membrane ribbon cable connected to the display board. You should

note that printed on the green circuit board behind each pin is it's specific function.

5. Using a jumper (i.e. a jumper wire with two copper ends, a paper clip, or a voltmeter set to continuity)

bypass the start button by touching one end of the jumper to the pin labeled GND or GROUND, and the

other end of the jumper to the pin labeled START or ON. (Note on page 2 where to locate these pins

on various Landice display boards) If the membrane is bad the treadmill will turn on and read "SAFE."

6. If it is necessary, replace the damaged membrane panel.