Pioneer PR-8210-A Service Manual page 58

PR-8210-A
! Test
Step | Mode i SP Servo | point Ad. | Adjustment and Check Details
No. | Range Loop No Point |
11
i
® FOCS LOOP GAIN
! PLAY CH-X:
TANG TP-2
VR2
Set the scope into X-Y mode and the AF oscillator
| =20,000
10mV /div
ол. ТР-1
output to 2.4kHz (0.6\р-р).
Scan to middle of
! CH-Y: TRKG the disc.
20mV /div сл.
Connect the oscillator output to CH-X and also to
TP-2 through a 68k£2. Connect CH-Y to ТР-1.
Adjust VR2 to make Lissajous figure into а hori-
zontal ellipsa.
ES