Pioneer FX-MG8506ZT, Service Manual

Page: 38 / 102

38
FX-MG8506ZT,MG8506ZT-91,MG8606ZT,MG8606ZT-91
1
RFO 0.5V/div. 0.2 µ s/div.
Normal mode: play
1
CH1: RFO 1V/div.
2
CH2: MIRR 5V/div.
Test mode: Tracking open
0.5ms/div.
1
CH1: RFO 1V/div.
2
CH2: MIRR 5V/div.
Normal mode: The defect part
passes 500µs/div.
0.5ms/div.
3
CH1: FIN 0.5V/div.
4
CH2: FOP 2V/div.
Test mode: No disc, Focus close
0.2s/div.
3
CH1: FIN 0.5V/div.
5
CH2: FOK 2V/div.
Normal mode: Focus close
0.2s/div.
6
CH1: FEY 0.5V/div.
7
CH2: XSI 2V/div.
Normal mode: Focus close
1ms/div.
8
CH1: TEY 0.5V/div.
9
CH2: TIN 0.5V/div.
Test mode: 32 tracks jump (FWD)
0.5ms/div.
8
CH1: TEY 0.5V/div.
9
CH2: TIN 0.5V/div.
Test mode: Single jump (FWD)
0.5ms/div.
6
CH1: FEY 0.1V/div.
3
CH2: FIN 0.2V/div.
Normal mode: Play
20ms/div.
3
CH1: FIN 0.5V/div.
0
CH2: SIN 1V/div.
Normal mode: Focus close
0.5s/div.
GND
→
GND
→
GND
→
GND
→
-
Waveforms
0
SIN 0.5V/div. 0.1s/div.
Normal mode: Play
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
REFOUT
→
1
RFO 0.5V/div. 0.5 µ s/div.
Test mode
REFOUT
→
REFOUT
→
REFOUT
→
Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
REFOUT:2.5V