SOUND (Cont'd)
Case Step Point Remark
Noise is recognized
before Projection
AMP assy
(P7-j)
If AMP assy is inferior, replace. P-15
Silicon photo diode
(P5-77)
If Silicon photo diode is inferior, replace during
optical recorded film reproduction.
P-17
Noise is recognized
after motor is
started
Cancel coil
(P7-34)
Adjust the position of Cancel coil or if it is
inferior, replace.
Noise is recognized
when sound drum is
rotated
Power IC
(P7-l9)
Replace IC3 (STK-015) if it is inferior at the
same time, replace C32 (0.047 MFD) and R23
(5 ohms).
AMP assy
(P7-j)
Check whether earthed circuit in AMP assy is
either inferior or mid-wired.
P-15
If the input wire to AMP assy is excessively
long and close by the speaker circuit of AMP
assy, cut the wire adequately to prevent
oscillation of AMP assy.
Silicon photo diode
(P5-77)
If Sound drum is touching Silicon photo diode,
adjust the position of Silicon photo holder.
P-17
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