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E-F Balance Check
Adjustment Location :
oscilloscope
BD board
[ BD BOARD ] (Conductor Side)
ee,
TP(FEO) O<«—0F
TP(VC)
o«—lo-
Procedure :
1.
Connect test point TP (ADJ) on Main board to GND with a
lead wire.
2.
Connect oscilloscpe to test point TP (TEO).
RV103
3.
Turned Power switch on.
° TEO FEO
4.
Put disc (YEDS-18) in and playback.
@)
5.
Confirm that the oscilloscope waveform is symmetrical on
ane
the top and bottom in relation to 0Vdc, and check this
yo
RV102
level.
Traverse waveform
symmetry
level : 300 + 100 mVp-p
6.
Remove the lead wire connected in step 1.
Focus/Tracking Gain Adjustment (RV102, RV103)
[ MAIN BOARD ] (Conductor Side) —
This gain has a margin, so even if it is slightly off.
There is no problem.
Therfore, 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.
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