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SYMPTOfi'
50. No sound
(magnetic only)
{NST/NT-2, -3 modcls}
5J. Poor sound or low volume
{magnetic only)
{NSTINT-2, -3 mdets}
{souND sYsT€M)
PROBABLE CAUSE
REMEtrY
52. Exciter lamp fuse blows
1. Excessive AC line voltage
2. lncorrect fuse
1- Mag/Opt switch in the wrong
position.
2. Magnetic head not in contact
with the sound track
3. Defective or dirty rnagneti€
head
4. Maelopt switch defective, or
bad connection
5 - Defective speakers, or speaker
connections
6- Defective amplifier module
1. Poor sound track-
?. Dirty, or defective head
3. Head not making good con-
tact with the film
4. lncorrect sound head align-
ment
5- Defective speakers, sr poor
speaker connection
6. Defective amplifier module
1. Check & switch.
2. Check & adjust.
3. Clean, or replace.
4- Check & replace
5- Check & replace-
6. Repair or replace
See Sec 4-2 & 3-71
1. Check with another film.
2. Clean or replace.
3. Adiust
(See Sec 6-2)
4. Align
{See Sec 6-2}
5. Check & replace
6. Repair or replace
{See Sec 4-2 & 3-2lr
l. Check wall outlet.
2. Check & replace.
3. Check & repface.
4. Check & repair
(See Sec 4-2)
5. Replace
1. Check & replace
?. Check
?. Check for grourrd loop con-
ditions.
3. Check voltage and repair,
(See Sec 4-?!
4- Check & repair
53. Amplifier fuse blows-
- to be continued -
3. Incorrect,or defective exciter
l a m p
4. Defective exciter lamp power
supply
5" Defective exciter lamp socket
l. Incorreet fuse
?. lmproper connectian to an
external speaker system
3. Defective amplifier module
1. Exciter lamp cover missing or
not installed correctly.
2. Incorrect grounding whcrr
connccting the projector to
an external amplifier or
sound system
3. Defective exciter lamp supply
4. Defectivc solar cell or con-
nections to arnplifier.
3. R,epair or replace
{5ee Sec 4-2 A }-21
l. Install cover
54. Excessive amplifier hum
iopticat)
. - t 3 -
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