Akai AP-Q310 - Page 50

MODEL
No. 9
AP-Q41/C
Turn off the Power Switch.
Connect the motor connection wire to connector Jl.
Connect an oscilloscope to (3) and of connector Jl.
Depress the Forward (<< ) Button to bring the Tone Arm over the
record. The Platter will begin ratating.
Adjust VR5 so that the voltage of connector Jl's (9) and may be
same. (The voltage indicated in (9) and is for switching motor
coil, and its frequency is very low)
WOW AND FLUTTER CONFIRMATION
1) Playback the test record (3,000 Hz).
2) Confirm that the Wow and Flutter is within 0.025% (WRMS).
3) If not, re-adjust VR5, VR4 and VR6.
SCHEMATIC DIAGRAM OF ICS
TC4016BP
CONTROL IN
IN /OLT
CONTROL IN
IN/OUT
CONTROL IN
IN/ OUT
CONTROL IN
IN/OUT