Sony CDP-XE530 Service Manual page 11

QQ
3 7 63 1515 0
1 track jump waveform
0V
E-F Balance Check (With general remote commander)
Procedure :
1. Connect the test point JW613 (ADJ) on MAIN board to the
ground with a lead wire on main board.
2. Connect oscilloscpe to test point TP (TE) on BD board.
3. Turn the Power switch on to set the ADJ mode.
4. Put disc (YEDS-18) in to play the number five track.
Press the 4 button. (The tracking servo and the sledding servo
5.
are turned OFF.)
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%
TE
L 13942296513
Traverse waveform
0V
Press the 9 button. (The tracking servo and sledding servo
7.
are turned ON.) Confirm the C (DC voltage) is almost equal to
the A (DC voltage) is step 6.
Traverse waveform
0V
8. Disconnect the lead wire of JW613 (ADJ) connected in step 1.
www
http://cxema.ru
http://www.xiaoyu163.com
Center of the waveform
B
+ 0.7
level : 1.3 Vp-p
symmetry
– 0.6
oscilloscope
BD board
TP (TE)
TP (VC)
Center of the waveform
B
level : 1.3 ± 0.6 Vp-p
Tracking servo
Tracking servo
Sledding servo
Sledding servo
ON
OFF
x ao
y
. i
http://www.xiaoyu163.com
8
Adjustment Location :
[ MAIN BOARD ] – Component Side –
A (DC voltage)
[ BD BOARD ] – Side A –
Q Q
3 6 7 1 3
TP
(R151)
A (DC voltage)
TP(RF)
TP(IOP)
C (DC
voltage)
u163
.
— 11 —
2 9 9 4 2 8
CN621
JW613 (ADJ)
JW617 (AFADJ)
1 5 0 5 8 2 9 9 4
TP(FE)
TP(TE)
TP(FEI)
TP(VC)
IC101
CN102
m
co
9 9
2 8 9 9