Akai GX-F51

V. MECHANICAL ADJUSTMENT
D
PINCH ROLLER(A)
PINCH ROLLER(T) SPRING
1. PINCH ROLLER PRESSURE
MEASUREMENT (Refer to Fig. 5)
Put in PLAY mode. Push pinch roller arm down with
the spring gauge push the pinch roller I ~ 2 mm from
the capstan and release slowly. Read the spring gauge
at the moment the pinch roller touches the capstan
and begins to rotate.
Specified pressure: 350 ~~g grm. If there is no mea-
surement obtained. replace the pinch roller spring.
2. TAPE SPEED ADJUSTMENT
2-6
Play Back a l ,000 Hz (TF-102CS) Pre-Recorded test
tape, and Adjust tape Speed Adjustment Volume
(VR I SOK) to obtain a tape speed of 1,000 Hz
± 1.0%.
Fig. 5
TAPE SPEED ADJ
/lflvR1
~50K
~
SYSCON P,C BOIRD
Fig. 6 Syscon P.C Board Adjustmmt Point