Read Sony CDP-XE900 / CDP-XE900E Service Manual online
— 9 —
Center of the waveform
B
level : 1.3 ± 0.6 Vp-p
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.
(DC voltage) is step 6.
Traverse waveform
8. Disconnect the lead wire of TP1 (ADJ) connected in step 1.
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 —
IC102
[ MAIN BOARD ] — Component Side —
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
A (DC voltage)
Tracking servo
Sledding servo
OFF
Tracking servo
Sledding servo
ON
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point TP (XPLCK) with lead
1. Connect frequency counter to test point TP (XPLCK) with lead
wire.
IC101
IC103
frequency counter
BD board
TP (XPLCK)
TP (XPLCK)
TP (FE)
TP (RF)
TP (TE)
TP (FEI)
TP (VC)
CN302
CN301
TP1 (ADJ)
R362
TP2 (AFADJ)
R362
TP2 (AFADJ)
J301
IC305
EB602
0V
C (DC
voltage)
voltage)
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