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QQ
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- Waveforms
A
1 CH1:TEI
1V/div.
2 CH2:T-
2V/div.
DVD:32 tracks jump
ch1 VR21 →
B
ch2 VR21 →
1 CH1:TEI
1V/div.
2 CH2:T-
2V/div.
CD:1 track jump
ch1 VR21 →
C
TE
L 13942296513
ch2 VR21 →
5 CH1:FEI
500mV/div. 2ms/div.
DVD:S curve check
Servo adjustment mode
D
ch1 VR21 →
6 CH1:RFRP(TP405) 500mV/div.
E
1 CH2:TEI
1V/div.
CD:RFRP waveform
Focus close situation
ch1 VR21 →
www
ch2 VR21 →
F
12
1
http://www.xiaoyu163.com
2
Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
VR21:2.1V
1 CH1:TEI
2ms/div.
2 CH2:T-
CD:32 tracks jump
ch1 VR21 →
ch2 VR21 →
3 CH1:F-
2ms/div.
4 CH2:EC(TP308) 1V/div.
DVD:S curve check
Servo adjustment mode
ch1 VR21 →
ch2 VR21 →
5 CH1:FEI
2 layer DVD:S curve check
Servo adjustment mode
ch1 VR21 →
6 CH1:RFRP(TP405) 500mV/div.
2ms/div.
1 CH2:TEI
CD:RFRP waveform
Focus close situation
ch1 VR21 →
x
ao
y
ch2 VR21 →
.
i
XDV-M8137ZT/UC
2
http://www.xiaoyu163.com
3
8
1 CH1:TEI
1V/div.
2ms/div.
2 CH2:T-
2V/div.
ch1 VR21 →
ch2 VR21 →
3 CH1:F-
2V/div.
500ms/div.
4 CH2:EC(TP308) 1V/div.
ch1 VR21 →
Q Q
3
6 7
1 3
ch2 VR21 →
5 CH1:FEI
500mV/div. 2ms/div.
ch1 VR21 →
3 CH1:F-
5ms/div.
4 CH2:EC(TP308)
1V/div.
u163
ch1 VR21 →
.
ch2 VR21 →
3
4
2 9
9 4
2 8
1V/div.
2V/div.
DVD:1 track jump
2V/div.
500ms/div.
CD:S curve check
Servo adjustment mode
1 5
0 5
8
2 9
9 4
500mV/div. 2ms/div.
CD:S curve check
Servo adjustment mode
1V/div.
500ms/div.
1V/div.
DVD:Focus close situation
m
co
4
9 9
2ms/div.
2 8
9 9
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