Pioneer PR-8210-A Service Manual page 57

i PLAY
` 20,000
CH-X:
0.2V/div
CH-Y:
50mV /div
TANG
O/L
TRKG
сл.
PR-8210-A
Le [ге =
tan Adjustment and Check Details
т | 6 4 - 2 ч 5 zi
| • TRKG LOOP GAIN
VR5 | Disconnect TP-8 from GND. Set the scope into
X-Y mode and the AF oscillator output to 4.8kHz i
(10Vp-p). Scan to middle of the disc.
Connect the oscillator output to CH-X and also to
TP-6 through а 68k2. Connect CH-Y to TP-5.
Adjust VR5 to make Lissajous figure into а hori-
zontal ellipse.
57