Sony CDP-XE210 Service Manual page 8

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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%
Traverse waveform
0V
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.
Traverse waveform
0V
Tracking servo
Sledding servo
OFF
TE
L 13942296513
8. Disconnect the lead wire of TP1 (ADJ) connected in step 1.
[ MAIN BOARD ] — Component Side —
CN202
CN201
TP1 (ADJ)
TP2 (AFADJ)
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IC401
.
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Center of the waveform
B
A (DC voltage)
level : 1.3 ± 0.6 Vp-p
C (DC
voltage)
Tracking servo
Sledding servo
ON
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2 9
8
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point (PLCK) with lead wire.
BD board
TP (PLCK)
2. Turn Power switch on.
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 —
1 20
(RF)
IC103
11
10
(VC)
(PLCK)
IC101
Q Q
3 6 7 1 3 1 5
J301
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IC801
.
9 4 2 8
frequency counter
(FE)
(FEI)
(TE)
(TEI)
0 5 8 2 9 9 4 2 8
m
9 9
9 9