Tracking Balance (Teb) Adjustment; Focus Balance (Feb) / Eye Pattern (Rf Level) Adjustment - Pioneer XC-LA21 Service Manual

XC-LA21

3. Tracking Balance (TEB) Adjustment

FUNCTION : CD
Keeps pushing
the FF button.
TEST DISC
PLAY
START
TSO
VREF
CD ASSY

4. Focus Balance (FEB) / eye pattern (RF level) Adjustment

FUNCTION : CD
TEST DISC
PLAY
START
RFO
VREF
CD ASSY
36
Track No. 1
of YEDS-7
Tracking Balance
VC is made a center.
A : B symmetry ADJ
Player
2
4
Track No. 1
of YEDS-7
Focus Balance
Player
1
4
VR2
NG
Probe
Obtain maximum 3T-level of EYE-pattern.
3T
VR1
maximum
Probe
0V
A=B
(VREF)
A
B
OK NG
Oscilloscope
DC Mode
V : 100mV/div
H : 1mSec/div
1.2Vp-p
Oscilloscope
AC Mode
V : 200mV/div
H : 0.5 Sec/div