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INFORMATION:
LinAire Engineering
LinAire
DISTRIBUTORS
LV 6125 NOTES
CUSTOMER SUPPLIED PARTS NEEDED FOR USE WITH LV-6125:
PRECISION
TRACK SELECTOR Collins 479V-3 (see Collins maintenance manual for connection)
RMI 332C - 2 or - 4 or - 8 or - 10
( The 332C-10 can be connected to the LV-6
panel front with the LinAire LV-6126 cable)
COMPASS SIMULATOR Collins 477L-1 or equivalent
CTL-32 Control Head (needed for VIR 30, VIR 32 / 33 serial operation)
TEST PANEL LV-6
TEST HARNESS LV-6125
TEST PANEL CONTROL HEAD (one of the below)
LVC - 6 provides for parallel frequency control of the VIR 30 / 31 / 32
LVC 8025 provides for the connection of a CTL-32 serial controller or a serial buss simulator for serial frequency control of the VIR 32 / 33.
(LVC 8025 is an adapter plate & harness)
SELECT 28V of 14/28V switch on the LV-6 panel
The LV-6 supplies the power to the units under test with the LV-6 panel ON.
Select NORM on the LV-6 panel for units without the ROTOR MOD and ROTOR with the MOD.
VIR PIN
P1 - 41 NORM (28 VDC POWER) NORMAL POWER LOCATION
P1 - 18 ROTOR (28 VDC POWER) UNITS WITH ROTOR MOD
To activate the VIR 32/33 use the LV-6 REMOTE ON switch or if using a CTL-32 controller set the REMOTE switch to OFF and the CTL-32 will activate the unit.
VIR PIN
P1 - 10 LV-6 REMOTE ON switch, ON position activates unit
OFF position allows CTL-32 to activate unit
PARALLEL / SERIAL FREQUENCY CONTROL
Select Parallel when using a LinAire LVC-6 control head.
Select Serial when using a Collins CTL-32 control.
Parallel selected by switch in connector box
SERIAL DATA SIGNALS
The CTL-32 supplies serial data to the VIR 32/33 through the LVC-8025 adapter. This adapter provides additional test switches and tip jack access to the CTL-32's signal and control lines.
If using a data buss simulator connect to the HP connector on the LVC-8025.
OBS TEST
Use a 479V-3 track selector or ARINC Indexed digital OBS connected to the LV-6 P6 on rear of panel.
See Collins Maintenance Manual for proper connection of 479V - 3.
Tip Jack FUNCTION
LV-6 Panel
OBS A
OBS A
P6 - 13
OBS B
OBS B
P6 - 14
OBS H
OBS H
P6 - 7
OBS C
OBS C
P6 - 8
OBS D
OBS D
P6 - 9
OBS E
OBS E
P6 - 10
OBS F
OBS F
P6 - 11
OBS G OBS G
P6 - 12
EZ OBS 0 - 300 Degree Switch
LOCATED ON CONNECTOR BOX
LV-6 P1- 42 at Tip Jack V V ac Sine
LV-6 P1- 43 at Tip Jack W W ac Cosine
RMI & COMPASS SIGNAL SOURCE
Connect a compass simulator ( Collins 477L-1 or equivalent) to P7 on the rear of the LV-6 test panel.
TO PATCH SIGNALS THROUGH LV-6 FROM P7 SELECT EXT of COMPASS EXT/OFF & SINE/COSINE EXT/OFF LV-6 switches.
ALTERNATE RMI connection
Using a LinAire RMI cable connect one of the following RMI's to P4 (RMI) on the front of LV-6 test panel and select OFF of SINE/COSINE EXT/OFF switch.
Collins 332C - 10 Driven by the OBI sine/cosine signals
Collins 332C - 8 Driven by the VIR 31 RMI driver Relative Bearing X' Y'
INDICATORS
The testing of the system's navigational indicators with the receiver unit maybe performed by using a LinAire
LVI Indicator cable to connect one of several indicator units. All needles and flags that are directly driven and most internal lighting will function. The units with OBS
resolver will supply OBS signals.
METER DRIVE CIRCUITS TEST
Without an indicator connected select Flag Load 5 (200 ohm) & Deviation Load 5 (200 ohm) and select circuit to meter on the LV-6
panel.
With an indicator connected select Flag Load 4 (250ohm) & Deviation Load 4
(250ohm) and select circuit to meter on the LV-6 panel..
The TO - FROM Flag current is metered by the LV-6 panel meter. To convert this reading to millivolts simply
double the reading and read as millivolts.
VOR/LOC signals
FUNCTION
LV-6 TIP JACK
VOR / LOC RIGHT
NAV / LOC DEV R
VOR / LOC LEFT
NAV / LOC DEV L
VOR / LOC FLAG +
NAV / LOC FLAG +
VOR / LOC FLAG -
NAV / LOC FLAG -
TO / FROM FLAG +
OBS TO
TO / FROM FLAG -
OBS FROM
VOR / LOC SUPER FLAG +
VOR/LOC SUPER FLAG LAMP & TJ
VOR / LOC TEST DET
VOR / LOC DET
VOR / LOC AGC
VOR / LOC AGC
VOR / LOC 30 Hz
VOR / LOC 30HZ
NAV AUDIO OUT
Measure at Phone Jack by selecting NAV of Nav / Mkr Audio switch & Phones of Speaker / Phones switch. Read LV-6 panel meter for RMS voltage (600 ohm load) or connect a watt meter to the Phone Jack. Monitor with LV-6 panel Speaker by selecting Speaker of Speaker / Phones switch.
FUNCTION
TEST POINT
VOR / LOC AUDIO HI
PHONE JACK OR LV-6 SPEAKER
ILS MODE ILS ENERGIZE SWITCH
SELF TEST
NAV SELF TEST SWITCH
D/R, U/L self test LEFT TEST SWITCH (LEFT = U/L test)
GLIDE SLOPE
FUNCTION
LV-6 TIP JACK
GS DOWN
GS DEV D
GS UP
GS DEV U
GS FLAG +
GS FLAG +
GS FLAG -
GS FLAG -
GS SUPER FLAG +
GS SUPER FLAG LAMP & TIP JACK
GS TEST DET
GS DET
GS AGC
GS AGC
GS 30 Hz
GS 30HZ
MARKER
MARKER AUDIO OUT
Measure at Phone Jack by selecting MKR of Nav / Mkr Audio switch & Phones of Speaker / Phones switch. Read LV-6 panel meter for RMS voltage (600 ohm load) or connect a watt meter to the Phone Jack. Monitor with LV-6 panel Speaker by selecting Speaker of Speaker / Phones switch.
FUNCTION
TEST POINT
MARKER AUDIO HI
PHONE JACK OR LV 6 SPEAKER
MARKER SENSE HI / LO
LV-6 SENSE SWITCH
OUTER MARKER (BLUE)
OUTER LAMP & TIP JACK
MIDDLE MARKER
(AMBER)
MIDDLE LAMP & TIP JACK
AIRWAY MARKER (WHITE)
AIRWAY LAMP & TIP JACK
MARKER TEST DET
MKR DET TIP JACK
MARKER AGC
MKR AGC TIP JACK
MARKER 30 Hz
MKR 30HZ TIP JACK
ADDITIONAL TEST POINTS for VIR 30/31/32/33 TIP JACK
TEST POINT
LV-6 TIP JACK
[+12 VDC No.1 (VIR-30/31)] or
[+13 VDC (VIR-32)] AA
[+12 VDC No.2 (VIR-30/31)] or
[ +5 VDC (VIR-32)] BB
[-12 VDC(VIR-30/31)]
or [-13 VDC(VIR-32)]
CC
+27VDC FILTERED
DD
DELAYED VOR/ILS MODE EE
VOR TO-FROM
FF
VOR DEVN
GG
VOR / LOC RNAV DET HH
DISCRIMINATOR
II
30 HZ REF FILTER
JJ
30 HZ REF
KK
30 HZ COMMON LL
SINE DC
MM
COSINE DC
NN
SDI
SDI switch
ADDITIONAL TEST POINTS FOR CTL-32 TESTING
TEST POINT
LVC-8025 TIP JACK
ON/OFF No.2
OFF 2
NAV AUDIO HI TO CTL
AUDIO IN
NAV AUDIO LO TO CTL
GND
NAV AUDIO HI FROM CTL
AUDIO OUT
NAV AUDIO LO FROM CTL
GND
MARKER SENS TO CTL
MBS
28 VDC SWITCHED OUT No.1
DC SW 1
28 VDC SWITCHED OUT No.2
DC SW 2
+5 VDC LAMPS apply voltage to
LAMP +5
+28 VDC LAMPS apply voltage to
LAMP +28
REMOTE (TUNE ENABLE)
REM
TRANSFER (FREQUENCY)
TRAN
RECALL MEMORY
REC
HOLD CTL 32
HOLD
Note: Line has 10 k ohm load inserted. To test apply 28 VDC thru a 10 k ohm
resistor to TJ and measure voltage at the TJ. When HOLD is true voltage
will be 14 VDC and false = 28 VDC
HOLD
GND TJ or select HOLD on CTL-32
HOLD
TEST CTL-32 GND = SELF TEST of CTL-32 TST
INHIBIT TEST CTL-32 GND = INHIBIT of CTL-32
IHB
EXTENDED FREQUENCY GND = EXTENDED
EXTN
DIMMING BUSS Measure voltage at
DIM
POWER GND
GND
+28 VDC POWER TO CTL-32
POWER