E-F Balance CheckAdjustment Location :
oscilloscope
[BD BOARD] (Conductor Side)
BD board
TP (TEO)
TP (VC)
RF
FOK
RV101
Procedure:
1. Connect oscilloscpe to test point TP (TEO).IC101
2. Turn Power switch on.TEIIC102
RV103
3. Connect pin @c of IC60I on the PANEL board to GND with a leadFEO
wire.TEOFEI
4. Put disc (YEDS-18) in and playback.RV102
5. Push TIME button.VC
6. Confirm that the oscilloscope waveform is symmetrical on the top
and bottom in relation to 0Vdc, and check this level.
Traverse waveform
IC104
PCK
GND
0V
symmetry
level : 300?100 mVp-p[PANEL BOARD] (Conductor Side)
7.Remove the lead wire connected in step 3.
Focus/Tracking Gain Adjustment (RV102, 103)
This gain has a margin, so even if it is slightly off.
There is no problem.
Therefore, do not perform this adjustment.
Please note that it should be fixed to mechanical center position when
you moved and do not know original position.
4025
4124
641
6580
IC601
� 7 � |
ACEC
