Elmo ST-1200 - Output sound is low during magnetic recorded film reproduction; Tone color is inferior during magnetic recorded film reproduction

SOUND (Cont'd)
Case
Point
Step
Remark
Output sound
is low during
magnetic
recorded film
reproduction
Tone color is
inferior
during optical
recorded film
reproduction
Tone color is
inferior
during
magnetic
recorded film
reproduction
Sound head
(p5-56)
AMP assy
(P7-j)
Film
Sound lens
(p5-8l)
Exciter lamp
(p5-6S)
AMP Assy
(P7-j)
Speaker
(p2-62)
Sound head
(p5-56)
Head presser
(p5-5l)
AMP assy
(P7-j)
Speaker
(P2-62)
If Sound head would not be in touch
with the sound track exactly, adjust
the position of Sound head.
Check the output voltages on Circuit
plate in comparison with the voltage
checking points on AMP circuit plate.
If the unusual voltage would be
measured, replace AMP assy.
Recording level of the film loaded
is low.
If the slit image through Sound lens
has not been exactly focused in the
center of Silicon photo diode, adjust
the position of Sound lens.
If Sound lens has been stained, replace.
If Exciter lamp is distorted, adjust
the position of Exciter lamp.
If the AMP assy is inferior, replace
If Speaker is inferior, replace.
If sound head has been exhausted,
replace.
If Head presser cannot press the film
to Sound head evenly, adjust the
tension to obtain adequate spring
pressure.
If AMP assy is inferior, replace.
If Speaker is inferior, replace.
- to be continued -
-28-
P-18
P-34
P-17
P-17
P-15
P-18
P-lS
P-15