Pioneer DEH-P945R Service Manual page 28

DEH-P945R,DEX-P99R
- Waveforms
1 RFO
0.5V/div. 0.5µs/div.
Normal mode: play
→
REFO
3 CH1: FIN
0.5V/div.
4 CH2: FO+
2V/div.
Test mode: No disc, Focus close
→
REFO
→
REFO
8 CH1: TEY
0.5V/div.
9 CH2: TIN
0.5V/div.
Test mode: 32 tracks jump (FWD)
→
REFO
→
REFO
6 CH1: FEY
0.1V/div.
3 CH2: FIN
0.2V/div.
Normal mode: Play
→
REFO
→
REFO
28
Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
REFO:2.5V
1 CH1: RFO
2 CH2: MIRR
Test mode: Tracking open
→
GND
3 CH1: FIN
0.2s/div.
5 CH2: FOK
Normal mode: Focus close
→
REFO
→
REFO
→
GND
8 CH1: TEY
0.5ms/div.
9 CH2: TIN
Test mode: Single jump (FWD)
→
REFO
→
REFO
3 CH1: FIN
20ms/div.
0 CH2: SIN
Normal mode: Focus close (12cm)
→
REFO
→
REFO
1 CH1: RFO
1V/div.
0.5ms/div.
2 CH2: MIRR
5V/div.
GND
6 CH1: FEY
0.5V/div.
0.2s/div.
7 CH2: XSI
2V/div.
REFO
REFO
GND
8 CH1: TEY
0.5V/div.
0.5ms/div.
9 CH2: TIN
0.5V/div.
REFO
REFO
3 CH1: FIN
0.5V/div.
0.5s/div.
0 CH2: SIN
1V/div.
REFO
REFO
1V/div.
0.5ms/div.
5V/div.
Normal mode: The defect part
passes 800µm
→
0.5V/div.
1ms/div.
2V/div.
Normal mode: Focus close
→
→
→
0.5V/div.
5ms/div.
0.5V/div.
Test mode: 100 tracks jump (FWD)
→
→
0.5V/div.
0.5s/div.
1V/div.
Normal mode: Focus close (8cm)
→
→