Click here to make tpub.com your Home Page

Page Title: Figure 2-41. Removal of ECU panel assembly
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

TM 5-6675-250-34
Table 2-1. Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CAUTION
To avoid damaging the electrical connectors, alternate tightening each of the two screws during reassembly.
(8). Install printed circuit board but do not tighten mounting screws. Connect the two electrical
connectors and secure by tightening two screws. Fasten ten screws that secure printed circuit
board to mounting brackets.
(9). Install electronic control panel assembly in case and secure with light captive screws.
6. HAND LAMP CIRCUIT INOPERATIVE
Step 1. Check for defective hand lamp.
a. Unscrew the lamp shield and remove the lamp.
b. Visually inspect the lamp for a burned filament.
Replace a bad lamp. Install a new lamp in hand lamp and install shield.
Step 2. Check for defective HAND LAMP switch (2A2S6).
a. Loosen the eight captive screws and lift the electronic control panel assembly from the case (fig. 2-41).
TS 006280
Figure 2-41. Removal of ECU panel assembly
b. Unfasten ten screws securing the printed circuit board to mounting brackets and loosen the board
to obtain access to electrical connectors.
CAUTION
To avoid damage to the electrical connectors, alternately back-off each of the two attaching screws when removing the
connectors.
c. Disconnect two electrical connectors (2A2J5 and 2A2J6) by unfastening two screws at each connector.
d. Use an ohmmeter and check continuity between pins 1 and 2 of switch 2A2S6.
If continuity is not present, replace a bad switch.
(1). Place Mode Select switch to GC position (fig. 2-42).
(2). place TEST SELECT switch to SOURCE VOLTAGE position.
2-33

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business