Read Sony CDP-XE800 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 : JW75) connected in step
1.
2. Turned 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
TP (TE)
TP (FE)
TP (VC)
TP (RF)
[ MAIN BOARD ] — Component Side —
A (DC voltage)
0V
Tracking servo
Sledding servo
OFF
Tracking servo
Sledding servo
ON
C (DC
voltage)
voltage)
RF PLL Free-run Frequency Check
Procedure :
1. Connect frequency counter to test point (XPLCK) with lead wire.
1. Connect frequency counter to test point (XPLCK) with lead wire.
TP1
(ADJ)
TP2
(AFADJ)
JW75
JW76
IC920
CN302
CN301
J301
IC305
TP (XPLCK)
IC101
TP (FEI)
IC103
frequency counter
BD board
TP (XPLCK)
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
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