Power Sw - Sony HCD-W550 Service Manual

E-F Balance (1 Track Jump) check
(Without remote commander)
Procedure:
1. Connect oscilloscope to test point TP (TEO) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Press the "P (Pause)" button. (Becomes the 1 track jump mode)
5. Check the level B of the oscilloscope's waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following:
A – B
× 100 = ±7 (%)
2 (A + B)
1 track jump waveform
0V
level : 500 mV ± 100 mVp-p
Adjustment Location:
[BD BOARD] (Conductor Side)
RF
IC101
TEO
FEO
GND
IC103
CNU102
Center of the waveform
B
A (DC voltage)
symmetry
VC
FOK
IC
I02
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