Table 3-1. Simulator, Monitor Input SM-627/A YM-9, Controls, Indictors and Connectors (fig -1)

TM 11-6625-2478-12

Table 3-1. Simulator, Monitor Input SM-627/A YM-9,

Controls, Indictors and Connectors (fig -1) -- Continued

Control, indicator or connector

Function

-522VDC test point.......................................................................................................... Provides means of monitoring -522 volts dc output.

RHA TEST SELECT switch (3-position rotary switch).................................................... Selects pattern to be displayed on recording head

assembly under test:

Switch position

Function

KA60, IR/SLAR,

Selects dotted circular pattern,

0.6 0.1 inch in diameter

CDM

KA76

Selects dotted circular pattern,

0.35 0.10 inch in diameter.

PHOSPHOR

Selects raster pattern.

FOCAL LENGTH-NORMAL switch ................................................................................ In FOCAL LENGTH position, routs binary coded decimal

(2-position rotary switch)

(+3) test signals from Control-Monitor C-8338/AYA-10 FOCAL

LENGTH thumbwheel switches to BCD + 3 indicator lamps.

In NORMAL position, routes all other binary coded decimal

(+3) test signals from Control-Monitor C-8338/AYA-10 to

BCD + 3 indicator lamps.

RESISTOR TEST A switch ............................................................................................ Provides means of selecting various Control-Monitor C-8338/AYA-

(12-position rotary switch)

10 thumbwheel switch resistors for testing

Switch position

Connections

OFF

Disconnects Control-Monitor

C-8338/AYA-0 thumb wheel

switch resistors from RESIS-

TOR TEST POINT.

1 through 10

Connects Control-Monitor

C-8338/AYA-10 thumbwheel

switch resistors to RESISTOR

TEST POINT.

ENABLE

Places RESISTOR

TEST B

switch in circuit between

Control-Monitor C-8338/AYA-10

thumbwheel switch resistors

and

RESISTOR TEST POINT.

RESISTOR TEST B switch ............................................................................................ With RESISTOR TEST A switch in ENABLE position, OFF

(12-position rotary switch)

positions disconnects Control-Monitor C-8338/AYA-10

thumbwheel switch resistors from RESISTOR TEST POINT;

positions through i1, provide means of selecting various

Control-Monitor C-8338/AYA-10 thumbwheel switch

resistors for testing.

SWITCH TEST-RESISTOR TEST ................................................................................ In SWITCH TEST position, routes decimal and binary coded

+ 5VDC POWER switch (2-potion toggle switch)

decimal test signals from Control-Monitor C-8338/AYA-10

thumbwheel switches to DECIMAL indicator lamps and BCD

indicator lamps In RESISTOR TEST + SVDC POWER

position,

routes + 5 volts dc power to Control-Monitor C-8338/AYA-10

thumbwheel switches and routes Control-Monitor C-8338/AYA-

10 thumbwheel switch resistors to RESISTOR TEST A

and RESISTOR TEST B switches

RESISTOR TEST POINT .............................................................................................. Provides means of monitoring voltages during Control-Monitor

C-8338/AYA-10 resistor test.

RHA MODC switch (2-position toggle switch)................................................................. In CONTINUOUS position, selects continuous presentation

of pattern selected by RHA TEST SELECT switch. In SINGLE

position, provides enabling voltage to SINGLE PULSE

pushbutton switch.

SINGLE PUILSE INDICATOR lamp............................................................................... Flashes to indicate that single pulse mod of operation has been

initiated

SINGLE PULSE witch (pushbutton switch) ................................................................... When operated. provides single CRT sweep, as selected by

RHA TEST SELECT switch, to unit under test

BCD THUMBWHEEL AND PANEL SWITCH TEST..................................................... Routes binary coded decimal, binary coded decimal( +3,

switch (l0-position rotary switch)

or panel switch test signals from corresponding Control-

Monitor C-438/AYA-10 thumbwheel switches or panel

switches to appropriate BCD or BCD - 3 indicator lamps; in

OFF position, disconnects B(D and BCD + 3 indicator lamps

from Control-Monitor C-8338/AYA-10 thumbwheel switches

and panel switches.

3-2