TM 11-5840-360-14-1-1
d. Correct range and range ring interval
a. Video Amplifiers AM-6932 No. 1 and No.
readout (LED's above CRT). /5-8(65)/
2.
4. Turn Indicator VRM handwheel two turns
b. Interface Unit J-3463.
clockwise; verify variable range marker (VRM) is
NOTE:
displayed. /5-8(4)/ 5. Adjust each of the following
For DP-1 mode (steps 4 through 11
Indicator controls and verify proper response (per
below), the following definitions
paragraph 3.7) to each:
apply:
a. ANTENNA ON/OFF switch /5-8(184)/
a. Master indicator: Indicator A
b. TUNE control /5-8(146)/
b. Slave indicator: Indicator B
c. GAIN control /5-8(136)/
c. Receiver Transmitter: MTR I
d. CONTRAST control /5-8(55)/
4. Set master and slave Indicator POWER
e. INTRF REJECT switch /5-8(136)/
switches to ST BY; verify the following at both
indicators:
f. PNL LIGHTS control /5-9(1)/
a. Lamps on control panel, bearing scales
g. BRG SCALE control /5-9(1)/
and plotter illuminate. /5-9(1) for faulty
h. VRM intensity control /5-8(56)/
indicator/
i. READOUT control (VRM LED) /5-8 (87)/
b. Status indicator (LED adjacent to POWER
j. RANGE RINGS intensity control /5-8(36)/
switch) flashes slowly (approximately
k. BRILLIANCE control /5-8(18)/
once per second). /5-2(1)/
I. FTE ON switch /5-8(188)/
5. Set master Indicator POWER switch to TX ON;
m. FLASH OFF switch /5-8(188)/
after 3.5-minute time delay, verify the following:
n. PWR BOOST switch /5-8(146)/
o. ANTI-CLUTTER RAIN control /5-8(43)/
b. Status indicator glows steadily at both
p. ANTI-CLUTTER SEA control /5-8(146)/
master and slave indicators. /5-2(22)/
q. EBL DIM/EBL READ control /5-8(105)/
6. Keeping the switches in step, set both master
and slave Indicator RANGE SELECT switches to each
r. EBL control /5-8(114)/
of their eleven positions in turn; verify the following at
s. OFFSET control /5-8(136)/
both indicators for each position:
6. Set Indicator HDG SET/GYRO STAB/HD UP
a. Sweep present. /5-12(1)/
switch to GYRO STAB and observe heading line
b. Video targets displayed. /5-12(1)/
bearing. Adjust heading line to agree with ship's
compass using HDG SET feature. Verify GYRO STAB
c. Range rings, electronic bearing line (EBL)
indicator (LED above CRT) is lit and heading line follows
and heading line displayed. /5-8(4) for
ship's heading changes. /5-8(136)/
faulty Indicator/
7. Set Indicator RANGE SELECT switch to 24
d. Correct range and range ring interval
MILES. At Receiver Transmitter RT-1240, measure
readout (LEDs above CRT). /5-8 (65) for
voltage indicative of magnetron current between TP7(+)
faulty Indicator/
and TP10O(-); correct voltage depends upon type of
7. Rotate master Indicator VRM handwheel two
magnetron installed as follows: /5-2(51)/
turns clockwise; verify variable range marker (VRM) is
displayed. /5--8(4)/ 8. At master Indicator, adjust each
MAGNETRON VOLTAGE
of the following controls and verify proper response (per
paragraph 3.7) to each:
Raytheon
3.0 to 3.5 VDC
a. ANTENNA ON/OFF switch /5-8(184))/
Toshiba3.0 to 3.5 VDC
b. TUNE control /5-8(146)/
English Electric 3.5 to 4.0 VDC
c. GAIN control /5-8(136)/
8. At Receiver Transmitter RT-1240, measure
d. CONTRAST control /5-8(55)1
crystal current of 23 + 5uA between TP10 (ground)
e. INTRF REJECT switch /5-8(136)/
and both TP1 and TP2 on A1600 assembly.
/5-2(53)/
f. PNL LIGHTS control /5-9(1)/
g. BRG SCALE control /5-9(1)/
5.8.2.2 AN/SPS-64(V)2 System Performance Check. -
h. VRM intensity control /5-8(56)/
Perform the following steps in the sequence indicated:
i. READOUT control (VRM LED) /5-8(87)/
1. Set POWER switch to OFF at both indicators.
j. RANGE RINGS intensity control /5-8(36)/
2. At Switching Unit, select mode DP-1 per Table
k. BRILLIANCE control /5-8(18)/
I. FTE ON switch /5-8(188)/
3. Set POWER switches to ON at the following
m. FLASH OFF switch /5-8(188)/
units:
5-7
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