Pioneer CRT3452 Service Manual page 22

1
- Waveforms
A
1V/div.
2 CH2:T- T- 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
ch2 VR21 →
5 CH1:FEI
500mV/div. 2ms/div.
DVD:S curve check
Servo adjustment mode
D
ch1 VR21 →
6
500mV/div.
1 CH2:TEI
1V/div.
E
CD:RFRP waveform
Focus close situation
ch1 VR21 →
ch2 VR21 →
F
22
1
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
500mV/div. 2ms/div.
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 →
ch2 VR21 →
XDV-M8357ZT/UC
2
3
1 CH1:TEI
1V/div.
2ms/div.
2 CH2:T-
2V/div.
DVD:1 track jump
ch1 VR21 →
ch2 VR21 →
3 CH1:F-
2V/div.
500ms/div.
4 CH2:EC(TP308) 1V/div.
CD:S curve check
Servo adjustment mode
ch1 VR21 →
ch2 VR21 →
5 CH1:FEI
CD:S curve check
Servo adjustment mode
ch1 VR21 →
3 CH1:F-
5ms/div.
4 CH2:EC(TP308)
1V/div.
DVD:Focus close situation
ch1 VR21 →
ch2 VR21 →
3
4
1V/div.
2ms/div.
2V/div.
2V/div.
500ms/div.
500mV/div. 2ms/div.
1V/div.
500ms/div.
1V/div.
4