Read Sony CDP-XE510 Service Manual online
— 9 —
6. Check the level B of the oscilliscope's waveform and the A (DC
voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 22%
Confirm the following :
A/B x 100 = less than ± 22%
Traverse waveform
Center of the waveform
B
level : 1.3 ± 0.6 Vp-p
0V
A (DC voltage)
7. Press the “8” button. (The tracking servo and sledding servo are
turned ON.) Confirm the C (DC voltage) is almost equal to the
A (DC voltage) is step 6.
A (DC voltage) is step 6.
Traverse waveform
0V
Tracking servo
Sledding servo
OFF
Tracking servo
Sledding servo
ON
C (DC
voltage)
voltage)
8. Disconnect the lead wire of TP1 (ADJ) connected in step 1.
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point (PLCK) with lead wire.
1. Connect frequency counter to test point (PLCK) with lead wire.
2. Turn Power switch on.
3. Put the disc (YEDS-18) in to play the number five track.
3. Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218MHz.
Adjustment Location :
[ BD BOARD ] — Side A —
[ MAIN BOARD ] — Component Side —
frequency counter
BD board
TP (PLCK)
(PLCK)
IC101
10
1
IC103
20
(RF)
(VC)
11
(TE)
(FEI)
(FE)
TP1 (ADJ)
TP2 (AFADJ)
R622
J681
IC651
CN621
IC631
R621
IC621
J621
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