A
0
100
40 60
80
20
NH
RPM
EXTERNALLY
REPLACEABLE
LAMPS
2 PLACES
UNLIT BLUE DOT
AT TEST VALUE
105.0% N
PRESS TO TEST
PUSH BUTTON
N SPEED INDICATOR
A
A
B
C
5V DC LIGHTING
P1
LIGHTING GROUND
ENG 1 NH IND
5
(H5)
28VDC L ESS BUS
E
3
4
2
1
5
7700−P5
TO
ECU
F
G
SIGNAL
SIGNAL RETURN
R
n
PART OF ENG 1
HARNESS
CONNECTOR
7700−P4
H
J
K
L
M
N
P
U
HI
LO
OUTPUT TO
FLIGHT DATA
RECORDER
H
H
1
3
2
D
POWER GROUND
5
SEE ENGINE
INDICATING−
GENERAL, FIGURE 3
5
4
S1
NO
28VDC
TO AUTO RELIGHT
CTRL RELAY
dam10_771200_001
NOTE
Circuits shown for engine No. 1.
Engine No. 2 circuits similar.
Ident code is 7711, unless otherwise
indicated.
Refer to chapter 33.
Refer to chapter 31.
Refer to chapter 73.
PRE MOD 8−1/1101 aircraft.
MODSUM 8Q100813.
1
2
3
4
5
HIGH PRESSURE
COMPRESSOR
ROTOR SPEED (NH)
SENSOR No. 2
(ENGINE No. 1)
HIGH PRESSURE
COMPRESSOR
ROTOR SPEED (NH)
INDICATOR
RANGE MARKS:
10 TO 20% & 66 TO 100% GREEN
100% RED RADIAL
D
SERIES 100
AIRCRAFT MAINTENANCE MANUAL
ENGINE HIGH PRESSURE COMPRESSOR ROTOR SPEED (NH) INDICATING SYSTEM
Figure 1
MASTER
EFFECTIVITY: See Pageblock 77−12−00 page 1
77−12−00
Page 3
Dec 20/2004
