(f)
Remove a plastic tubing from the wire terminals of the brightness control, if it is necessary.
(g)
Tag the wires.
(h)
Use the soldering tool to remove the wires from the brightness control.
TASK 31-61-09-424-039
3. EFIS Brightness Control Installation
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A. Standard Tools and Equipment
(1)
Tool - Soldering
(2)
Heat Gun
B. Consumable Materials
(1) G00386 Tubing - Heat Shrinkable, 3/32-inch diameter
C. References
(1)
AMM 24-22-00/201, Manual Control (Apply Power)
(2)
AMM 25-13-01/401, Pilots' Glareshield Assembly
(3)
AIPC 31-61-06, Fig. 1
D. Access
(1) Location Zone
221 Control Cabin, LH
222 Control Cabin, RH
E. Procedure
S 864-032
(1) Make sure these circuit breakers are open with DO-NOT-CLOSE tags attached:
(a)
P7, Overhead Circuit Breaker Panel
1) 7F12, ND L
2) 7F13, PFD L
3) 7F17, ND R
4) 7F18, PFD R
(b)
P6, Main Power Distribution Panel
1) 6E19, CAPT PANEL FLT DK LIGHTS
2) 6E23, F/O PANEL FLT DK LIGHTS
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S 424-033
(2) Install the EFIS brightness control:
(a)
Put the heat shrinkable tubing on the disconnected wires.
(b)
Use the soldering tool to connect the wires to the EFIS brightness control.
(c)
Move the heat shrinkable tubing to the end of the wire.
(d)
Use the heat gun to warm the heat shrinkable tubing.
NOTE: When you apply heat to the tubing, it becomes
____
smaller to hold the wires tight.
(e)
Install the brightness control into the panel with the nut and washer.
(f)
Use the mounting screws to install the lightplate into the panel.
(g)
Install all the knobs on the panel.
S 864-034
(3) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P7, Overhead Circuit Breaker Panel
1) 7F12, ND L
2) 7F13, PFD L
3) 7F17, ND R
4) 7F18, PFD R
(b)
P6, Main Power Distribution Panel
1) 6E19, CAPT PANEL FLT DK LIGHTS
2) 6E23, F/O PANEL FLT DK LIGHTS
S 864-035
(4)
Supply electrical power, if it is necessary (AMM 24-22-00/201).
S 754-040
(5)
Do a check of the brightness control installation:
(a)
Set the INBD CRT and LWR CRT switches on the display transfer modules to the NORM position.
(b)
Set the EIU SEL switch on the EICAS control panel/FMC switch to the C position.
(c)
Set the EIU switch on the captain's source select module to the L position.
(d)
Set the EIU switch on the first officer's source select module to the R position.
(e)
Set the GND TESTS switch on the P461 panel to the ENABLE position.
(f)
Push the MENU key on the CDU to show the menu.
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(g) Push the <CMC LSK (line select key) to show the CMC menu.
NOTE: If the CMC menu is not shown, push the <RETURN LSK, if
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it is necessary, until you see the menu.
(h)
Push the <GROUND TESTS LSK to show the GROUND TESTS menu.
