Pioneer DEH-P90HDD Service Manual page 52

DEH-P90HDD,P900HDD
- Waveforms
1 CH1:DSCSNS 5V/div.
2 CH2:CDLOAD 5V/div.
3 CH3:CDEJET
5V/div.
⁄ CH4:VD
5V/div.
8cm LOAD
→
GND
→
GND
→
GND
→
GND
1 CH1:DSCSNS 5V/div.
2 CH2:CDLOAD 5V/div.
3 CH3:CDEJET
5V/div.
12cm EJECT
→
GND
→
GND
→
GND
7 CH1:FD
1V/div.
8 CH2:fok
5V/div.
9 CH3:SINY
5V/div.
Setup
→
VREF
→
VREF
→
VREF
6 CH1:FEY
500mV/div.
@ CH2:foon 5V/div.
Setup(Focus close)
→
VREF
→
VREF
52
Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
VREF:2.1V
1 CH1:DSCSNS 5V/div.
2 CH2:CDLOAD 5V/div.
500ms/div.
3 CH3:CDEJET
⁄ CH4:VD
12cm LOAD
→
GND
→
GND
→
GND
→
GND
4 CH1:RFO
5 CH2:TEY
500ms/div.
Tracking open
→
VREF
→
VREF
7 CH1:FD
8 CH2:fok
500ms/div.
0 CH3:FG
9 CH4:SINY
Setup(In focus)
→
VREF
→
VREF
→
VREF
→
VREF
6 CH1:FEY
1ms/div.
7 CH2:FD
Setup(Focus AGC)
→
VREF
→
VREF
1 CH1:DSCSNS 5V/div.
2 CH2:CDLOAD 5V/div.
500ms/div.
3 CH3:CDEJET
5V/div.
5V/div.
5 CH1:TEY
500mV/div.
2ms/div.
6 CH2:FEY
500mV/div.
7 CH1:FD
2V/div.
! CH2:FOP
5V/div.
100ms/div.
5V/div.
5V/div.
5 CH1:TEY
200mV/div.
1ms/div.
# CH2:TD
500mV/div.
5V/div.
8cm EJECT
→
GND
→
GND
→
GND
500mV/div.
500mV/div.
Setup
→
VREF
→
VREF
1V/div.
2V/div.
Setup(In focus)
→
VREF
→
VREF
200mV/div.
200mV/div.
Setup(Tracking AGC)
→
VREF
→
VREF
500ms/div.
200ms/div.
200ms/div.
1ms/div.