Leprecon®
Pro Lighting Equipment
THE LP-500 Series Operational Instruction Manual
Leprecon/CAE, Inc.
10087 Industrial Drive
PO Box 430
Hamburg, MI 48139 USA
810-231-9373 FAX 810-231-1631
This document is the property of CAE, Inc. and is provided for service and instructional purposes
only. Possession does not imply or convey rights to use any information herein. This information
is proprietary, and may relate to patents or patents pending that are the property of CAE, Inc.
other than the use of products manufactured by CAE, Inc.
©Copyright 1993 CAE, Inc. All rights reserved. 7/8/93 Part #21-2081
THE LP 500 SERIES OPERATIONAL INSTRUCTION BOOKLET
The LP 500 series is a standard analog lighting controller. This 2 scene control board
can be broken into 6 basic sections.
The 500 series has a 6 channel chase, a bump system that can change the existing look
on stage momentarily, an output trim section, a master section, a dipless crossfade and
an individual channel adjustment section. The LP 500 series also has a 12 volt
dimmable gooseneck work lamp.
This controller uses a power source of 105-125 VAC 50-60 HZ and its output is a
continuous DC voltage across all channel.
POWER UP
When power is applied to this controller the dimmable gooseneck work lamp is
immediately accessible. This lamp is available in two different wattages, 2.4 and 5 watt.
The 2.4 watt bulb is standard equipment in all of our controllers. You can adjust the
intensity of the lamp by a clockwise rotation of the knob marked “lite”.
To engage or disengage the controller simply push the rocker switch marked “on”. The
green LED marked “power”, located beneath the switch, will be glowing.
If the LED is not glowing, recheck your power cord and be sure the outlet that you are
using is operational. If the outlet is operational and the power LED and work lamp are
not working, you may have an open fuse. The fuse is located inside the controller and is
mounted on the circuit board.
TRIM ADJUSTMENT
Under the “power” LED you will notice another green LED marked “max”. This LED’s
brightness is directly related to the amount of output. The factory trim adjustment is 10
volts, and is accessible from the recessed trim pot located next to the LED.
Under the “max” trim control is another recessed control for the minimum output voltage,
this is marked “min” and is factory adjusted to zero volts.
Do not readjust trim unless there is a reason for the adjustment, such as the
implementation of another brand of dimmer. Do this only with a volt meter connected to
the output of the controller. We will cover the procedure for trim adjustment later on in
more detail.
CHASER
The chaser has two sections. Section one has two control faders and a switch and is
located on the front panel next to the power section. Section two is a series of group
selector switches located on the rear of the controller.
The “M”, master fader controls only the “crossfader” section. The overall level that is set
by the “M” fader can be seen with the LED located directly above it.
The “I”, independent, fader controls only those channels that have been selected “I” by
the “M/I” rocker switches. The “I” fader also has a level LED located above it.
The switch marked “black” will disable anything assigned to the “M” fader on the board.
This gives the operator instant control over the scene outputs. When the disable
function is activated the red LED above it will be glowing.
HINT: This can also help in a quick change from an existing stage look to a chase
sequence. Activate the “black” switch and push the chase “on/off” at the same time.
Then reverse the operation to return the original stage look.
NOTE: All of the controls in the “grandmaster” section can be overridden by the chase
and the bump sections.
CROSSFADER
The “crossfader” section controls the top, “X” scene, and bottom, “Y” scene, channels.
There are two control faders and they operate in reverse order to accomplish a smooth
crossing between the scenes. In order for the crossfade to work the “M/I” selector
switches need to be in the “M” position.
The leftmost fader is marked “X” and it operates the top set of controller faders. The
fader is at its maximum output when in the upward position. The “X” fader has a
corresponding level LED above it.
To its right is the “Y” fader, which operates the bottom set of controllers. This fader has
a maximum output when in the downward position. The “Y” fader has a output LED just
below it.
With both crossfader controls in the up position the look on stage is accomplished from
the “X” scene. The “Y” scene fader is off. The operator sets up the next stage look to be
used on the “Y” scene controls. When it is time to change the look on stage the operator
brings both “crossfader” controls to the down position. This turns down the “X” scene
and turns up the “Y” scene. Creating a smooth scene transition with a rate determined
by the operator.
CONTROL CHANNELS
The control section is at the right of the board. This section contains the individual
channel faders, the “M/I” switches, the bump buttons and output LEDs.
The output LEDs located at the top are directly related to that channels output. The two
position rocker switches located beneath the output LEDs select either the “M”, master,
or “I”, independent as a fader source for that channel. The momentary switches at the
bottom of each channel are for the bump button operations.
TRIM
To adjust the trim of any LEPRECON controller you need a volt meter and a small flat
blade screwdriver. The first item that should be done is to determine which pin is
common with your controller.
On the LP 500 series there are two different types of output connectors that are used.
They are a 15 pin cinch jones and a 27 pin cinch jones. On the 15 pin cinch jones, pins
1-12 are channels 1-12. Pin 13 is 28 volts. Pin 15 is used for common and common is
isolated from ground. On the 27 pin CJ, pins 26 and 27 are common and pin 25 is the
28 volt DC supply.
With your volt meter’s negative lead connected to the controller’s common pin and the
positive lead connected to channel number one you then raise all channels to maximum.
With all channels up you adjust the “max” trim to the desired level, factory adjustment is
10 volts.
To adjust the minimum voltage you bring only channel one down, all other channels
must remain at maximum output. With the screwdriver in the “min” pot you turn it
counterclockwise to the near zero position.
Once the trim has been adjusted it does not need to be readjusted unless another brand
of dimmers have been introduced.
LP 500 PARTS LIST
DESCRIPTION PART CAE ORDER NUMBER
RESISTORS-----------------------------------------------------------------------------------
160 OHM, .25 W R42 01-0054
220 OHM, .25 W R6 01-0057
240 OHM, .25 W R3 01-0058
390 OHM, .25 W R11 01-0063
1K OHM, .25 W R38 01-0073
1.8K OHM, .25 W R39 01-0079
2K OHM, .25 W R2, R8, R12, R13, R14,
3.9K OHM, .25 W R4, R59 01-0087
4.7K OHM, .25 W R7, R9, R55 01-0089
6.2K OHM, .25 W R23, R24 01-0092
10K OHM, .25 W R16, R26, R37, R56, R57 01-0097
47K OHM, .25 W R32, R33 01-0113
100K OHM, .25 W R18, R27, R29, R31, R35 01-0121
200K OHM, .25 W R40 01-0128
220K OHM, .25 W R54 01-0129
330K OHM, .25 W R22, R25 01-0133
2.2 MEG, .25 W R17, R41 01-0153
470 OHM, 3.0 W R58 01-9001
33K NETWORK R50 01-9013
R19, R20, R34, R36, R44,
R45, R46, R47, R48, R49,
R51, R52 01-0080
CAPACITORS---------------------------------------------------------------------------------.01 mf, 50 V C8 02-0003
33 pf, 50 V C11 02-0006
.1 mf, 50 V C4, C5 02-0008
220 pf, 50 V C10 02-0016
.1 mf, 250 V C2 02-1001
.0033 mf, 100 V C9 02-1012
1.0 mf, 50 V C6 02-1022
1.0 mf, 35 V C3 02-2026
1K mf, 50 V C1 02-2041
DIODES----------------------------------------------------------------------------------------IN 4002 D2, D3, D4, D11, D13,
D29, D30, D31 03-3007
IN 4148 D17, D18, D19, D20,
D21, D22 03-3004
BRIDGE 1A, 200 V D1 03-0013
LED RED .2 Dia. D8 03-1011
LED YELLOW .1 Dia. D23, D24, D25, D26,
D27, D28 03-1005
DESCRIPTION PART CAE ORDER NUMBER
DIODES-----------------------------------------------------------------------------------------
LED GREEN .2 Dia. D6, D7, D10, D12, D14,
D15 03-1009
LED YELLOW .2 Dia. D9, D16, D32 03-1010
4.7 V ZENNER .5 W D5 03-2001
TRANSISTOR--------------------------------------------------------------------------------2N3904 Q2, Q3, Q5, Q6 04-0011
2N6109 Q1 04-0013
J174 FET Q4 04-0017
INTEGRATED CIRCUIT-------------------------------------------------------------------LM 324 N IC3, IC11, IC12 06-0001
RC 3403 IC4, IC5 06-0002
CD 4050 IC10 06-0036
CD 4017 IC9 06-0049
CD 4049 IC6 06-0052
LM 317LZ IC2, IC7 06-0056
LM 317T Regulator IC1 06-0057
CD 4046 IC8 06-0058
POTENTIOMETERS-----------------------------------------------------------------------100K SLIDER ALPS R15, R21, R28, R30,
R43, R53 08-0001
10K LINEAR ROT. R5, R10 08-1029
SWITCHES-----------------------------------------------------------------------------------ROCKER DPDT S1, S2, S3, S4 09-0038
MOMENTARY S5 09-0044
MISCELLANEOUS--------------------------------------------------------------------------10 PIN MALE P4 07-0019
6 PIN HEADER P5 07-0020
2 PIN .156 Cen. P2, P3 07-0028
IEC INLET P1 07-3006
ST 3-24 Trans. T2 10-0016
ST 5-24 Trans. T1 10-0022
MOV 130 V MOV 15-9005
SCHEMATIC
LP 500 MASTER (PL 30-1030B)
LP 12 CONTROLLER (30-1026a)
SCHEMATIC
LD 500 MASTER (SC 30-1030B)
LP 18 CONTROLLER (30-1034A)
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