Removal of Connector J4.

TM 11-6760-238-34

connector J2 (5) and secure with hardware remove step

DS3, CENTER (CTR) DS4 and RIGHT

d(1) above.

(AFT) DS5 lamp assemblies

f. Removal of Connector J4.

(1) Remove lamp (26) from lampholder

assembly (27).

(1) Unsolder and tag all wires attached to

(2) Unsolder and tag wires attached to

connector J4 (11).

lampholder assembly (27).

NOTE

(3) Remove two screws (24) and two

Observe location of guide pins on

flatwashers (25) and remove lampholder assembly (27)

connector J4.

from support (30).

(2) Remove two nuts (13) and remove

m. Replacement of Lamp Assemblies.

connector J4 (11) and shell (12) from test panel (10).

(1) Position lampholders assembly (27) on

g. Replacement ofconnectorJ4.

support (30) and secure with hardware removed in step

(1) Ensure that guide pins are in the correct

1(3) above.

position and position connector J4 (11) and shell (12) in

(2) Replace and solder all wires removed in

place on the test panel (10) and secure with hardware

step 1(2) above.

removed in step f(2) above.

(3)

Replace lamp (26) in lampholder

(2) Replace and solder all wires removed in

assembly (27).

step f(1)

NOTE

Focus adjustment (para 3-9) should be

For removal and replacement of FOCAL

performed

after

replacement

PLANE SHUTTER Switch S8 (16),

lampholder assembly.

MASTER Switch S3 (17) or CONTROL

n. Removal of Support.

PANEL TEST Switch S4 (18), refer to

CAUTION

the instructions given in steps h and i

Coated lens are installed in the lamp

below

assemblies support Avoid handling lens

h. Removal of SHUTTER ASSY TEST Switch S7

when removing or replacing support.

(1) Unsolder and tag all wires attached to

(1) Remove two screws (31) and two

switch S7 (15).

flatwashers (32) from each lampholder assembly (27)

(2) Loosen two set screws (p/o 14) and

and move the lampholder assemblies away from the

remove knob (14) from shaft of switch S7 (15).

support (30).

(3) Remove nut (15), lockwasher (15), and

(2)

Remove six screws (31) and six

flatwasher (15) from front of test panel (10) and remove

lockwashers (32) from the support (30) and remove

switch assembly (15) from rear of test panel.

support from lens housing.

i. Replacement of SHUTTER ASSY TEST Switch

o. Replacement of Support.

S7.

(1) Position support (30) on lens housing

(1) Position switch assembly (15) in test

and secure with hardware removed in step n(2) above

panel (10) and secure with hardware removed in steph

(2) Position lampholder assemblies (27) on

h(3) above.

support (30) and secure with hardware removed in step

(2) Replace knob (14) on shaft of switch

n(1) above

assembly S7 (15) and tighten the two set screws.

NOTE

(3) Replace and solder all wires removed in

Focus adjustment (para 3-9) should be

step (1) above

j. Removal of Transformer T1.

performed after replacement of support.

p. Removal of Connector XA8.

(1) Unsolder and tag all wires attached to

(1) Refer to paragraph 3-8b and remove

transformer T1 (23).

shutter assembly test board A8 from connector XA8 (37).

(2) Remove two nuts (22) and two screws

(2) Remove two screws (33) from spacer

(21) and remove transformer T1 (23) from chassis and

assembly (34) and move spacer assembly and

nut assembly (43)

k. Replacement of Transformer T1.

connector XA8 (37) away from chassis and nut assembly

(43).

(1) Position transformer T1 (23) on chassis

(3) Unsolder and tag all wires attached to

and nut assembly (43) and secure with hardware remove

connector XA8 (37).

in step (2) above.

(4) Remove two screws (35) and two nuts

(2) Replace and solder all wires removed in

(36) from connector XA8 (37) and remove connector

step J(1) above

l. Removal of Lamp Assemblies.

XA8 from spacer assembly (34)

g. Replacement of Connector XA8.

NOTE

(1) Position connector XA8 (37) in place on

Removal and replacement instructions in

spacer assembly (34) and secure with hardware

step l and m will apply to LEFT (FWD)

removed in step p(4) above.

4-4