LVPS Replacement
Instruction Sheet
INTRODUCTION
Use the following instructions when replacing the Astec Low Voltage Power Supply (LVPS) in
CP2000-ZX (116-001101-03/04, 116-001113-01, 116-001124-01) or CP2000-M/MR (119-001101-02,
119-001101-03) projectors.
KIT REQUIRED
003-120488-01 LVPS Service Kit (includes low voltage power supply, AC harness for ZX (001-111092-01), AC
harness for M/MR (001-110858-01), DC harness (001-111081-01), 1/8”plastic slot driver, instructions)
TOOLS REQUIRED
CP2000-ZX:
• Phillips #3, #2 (long stem)
• 1/8” plastic slot driver (for LVPS POT adjustments in CP2000-ZX projectors)
CP2000-M:
• Phillips#1, #2 (long stem, and 4”)
SAFETY AND WARNING GUIDELINES
HIGH VOLTAGES MAY BE EXPOSED: Always power down and disconnect power
sources prior to servicing. Once the projector is powered down, allow the cooling fans to
automatically turn OFF before disconnecting from AC and opening the projector. Depending on
your projector model this can take 10-15 minutes.
QUALIFIED SERVICE TECHNICIANS REQUIRED: All module replacement
procedures must be performed by qualified service technicians.
NON-INSULATED DANGEROUS VOLTAGES MAY BE EXPOSED: Always
disconnect from AC prior to disassembly.
OBSERVE ALL ELECTROSTATIC PRECAUTIONS: Use a grounded wrist strap
when handling electronic assemblies.
Never operate the projector (or the fans) without all the covers installed.
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
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INSTRUCTIONS
FOR CP2000-ZX
1. Ensure power to the projector is OFF.
2. At the wall breaker, set the main AC circuit breaker to OFF.
3. Remove the LVPS/Ballast cover (Figure 1):
a. Loosen the 3 captive screws
securing the cover to the chassis.
b. Lift the cover enough to clear
the tabs at the bottom and
remove.
Figure 1
4. Remove the EMI shield (Figure 2):
a. Loosen the 2 screws securing the shield to the
frame. Remove shield to access harness connections to the LVPS.
Figure 2
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LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
5. Disconnect the DC harness (P1) from the Motherboard.
(Figure 3)
Figure 3
6. Disconnect the signal connection from
the AC end of the LVPS, and the three
signal harnesses (+3.3V, +5V and
+12V) from the DC end. (Figure 4)
7. Remove the AC relay cover.
Figure 4
8. Disconnect the four AC harnesses
from the AC relay (4, #2 Phillips screws). (Figure 5)
9. Disconnect ground.
Figure 5
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
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10. Remove 4, #3 Phillips screws
securing the LVPS module to the
vertical plate. (Figure 6)
Figure 6
11. Before installing the new LVPS, remove the AC harness and connect the loose AC harness labeled
P/N 001-111092-01 from the kit. This AC harness is specific for CP2000-ZX.
12. Continue replacing the LVPS by following instructions in reverse. Refer to the Interconnect
drawing provided with your projector when reconnecting harnesses.
Pay particular attention to the connection of the +3.3V and the +12V signal
harnesses. These are critical connections that if not done correctly can lead to LVPS damage.
To adjust LVPS voltage rails:
Use the non-conductive plastic slot driver
provided in the service kit when adjusting the LVPS voltage
rails on the CP2000-ZX LVPS.
LVPS rail adjustment must be performed
by qualified service technician.
1. Remove the LVPS/ballast side cover.
2. Adjust POT’s to 3.366 +/-0.003v and 5.110v +/-0.003v.
Observe the CDP to see the adjustment value of the rails.
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Figure 7
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
FOR CP2000-M
1. Ensure power to the projector is OFF.
2. Remove top lid. (Figure 8)
Figure 8
3. Remove the 13 screws securing the high security cover.
Remove cover (Figure 9)
Figure 9
4. If your projector is manufactured early 2009, continue with Steps 5-9.
If your projector is manufactured late July 2009, continue with Step 10. These units have longer
LVDS cables which allow the connections to the FFIB to remain intact.
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
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5. Remove the 4 screws securing the small plate on top of the cardcage. Remove the plate. (Figure
10)
Figure 10
6. Disconnect power harnesses J7, J8 and J9 from the FPGA Formatter Interface Board (FFIB).
Note: The FFIB is located in the top slot of the cardcage.
7. Remove clips securing power harnesses. (Figure
11)
8. Disconnect the 6 LVDS harnesses from the FFIB.
9. Disconnect the CDP power harness.
Figure 11
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LVPS Replacement Instruction Sheet
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10. Remove the intake duct (Figure 12):
a. Remove 3 screws from the corners of
the intake duct.
b. Remove the duct by pulling it up and
out.
Figure 12
11. Remove the air filter cover (Figure 13):
a. Loosen the 2 captive screws at the bottom of
the filter cover.
b. Pull the cover up and remove.
Figure 13
12. Loosen 2 thumbscrews on the cardcage. (Figure 14)
Figure 14
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
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13. Remove 6, #1 Phillips screws on
the cardcage front plate. (Figure
15)
14. Slide the cardcage out a few
centimeters, then re-tighten the 2
thumbscrews on the cardcage
(Figure 14) to prevent the
cardcage from sliding all the way
out.
Figure 15
15. Disconnect DC power P1 and P35 on the Motherboard.
16. Disconnect the inline connection to the voltage adjustment harness.
17. Disconnect the signal connection from the AC end of the LVPS, and the two signal harnesses
(+3.3V,+5V) from the DC end. (Figure 16)
Figure 16
18. Using a long stem #2 Phillips screwdriver, loosen the 2 thumbscrews on each side of the LVPS
(behind the cardcage).
19. Open the rear lamp door.
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LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
20. Remove the exhaust panel (Figure 17):
a. Remove 2 screws from each corner of
the panel.
b. Using a 4mm Allen™ key, remove 5
socket head cap screws along the bottom edge of the panel.
c. Pull the skin forward and out.
Figure 17
21. Disconnect the two harnesses (brown -SW1 and blue SW2) from the AC selector switch. (Figure 18)
Figure 18
22. Remove the 10mm nut from the GRN terminal and
disconnect. (Figure 19)
Figure 19
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
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23. Disconnect the lamp exhaust
thermal harness. (Figure 20)
24. Remove 3 screws from the lamp
exhaust duct. Remove duct.
Figure 20
25. Remove 2 screws and loosen the
thumbscrew from the liquid
cooling module. Pull the liquid
cooling module up slightly and
slide it out enough to gain
access to the LVPS plate cover.
(Figure 21)
Figure 21
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LVPS Replacement Instruction Sheet
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26. Using a long stem #2 Phillips screwdriver, remove 2 screws and PEM nut from the LVPS plate
cover. Remove cover. Using caution not to catch any harnesses on the opposite end, slowly pull
the LVPS out of the compartment. (Figure 22)
Figure 22
27. Remove 4 screws from the LVPS cover.
28. When replacing, repeat instructions in reverse. Refer to the Interconnect drawing provided with
your projector when reconnecting harnesses. NOTE: The AC harness for the CP2000-M already
comes connected to the LVPS. It is labeled 001-110858-01.
To adjust LVPS voltage rails:
LVPS rail adjustment must be performed by qualified service technician.
1. Remove the air filter cover (and filter).
2. Adjust POT’s to 3.366 +/-0.003v and 5.110v +/-0.003. Observe the CDP to see the adjustment
value of the rails. (Figure 23)
Figure 23
LVPS Replacement Instruction Sheet
020-100377-01 Rev. 1 (08-2009)
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