TM 10-5410-228-24
5.
NO AIR FLOW WHEN MISSION PROFILE SWITCH IS SET FOR STATIC MODE `STATIC'
INDICATOR OFF AND ESS MODE SWITCH ON VENT, COOL, OR HEAT, INTERNAL
MODE Continued.
2
1
Gain access to the optical switch HOLS2
Gain access to the optical switch HOLS3
(reference TM 10-5410-228-10).
(reference TM 10-5410-228-10).
Turn power off.
Turn power off.
Remove connection at wire #2.
Remove connection at wire #2.
Check continuity between switch wire
Check continuity between switch wire
lead #2 and equipment ground.
lead #2 and equipment ground.
Notify direct
Does
Does
Yes
Yes
support to replace
continuity to
continuity to
optical switch.
ground
ground
exist?
exist?
Remove cable assembly 1A4A1W3
No
No
connector P1 from J3.
Test for continuity from W3HOLS2
& W3HOLS3 to W3P1 pins c, B, H,
L, M, & X per Appendix F, Fig. F-4,
sheet 1 & F-16 sheet 5.
Check for continuity
Does
between pin to pin of
No
Yes
continuity
connector P1 of cable
exist?
assembly 1A4A1W3.
Notify direct support
to repair cable
Does
Yes
assembly 1A4A1W3.
continuity
exist?
Remove cable assembly 1A4A1W1
connector J1 from 1A4W6 P1.
No
Test for continuity pins c, B, H, L,
M, & X per Appendix F, Fig. F-4,
sheet 2 & F-16 sheet 5.
4
2-27