Pioneer CDX-MG6346ZH Servise Manual page 22

CDX-MG6346ZH,MG6446ZH
QQ
3 7 63 1515 0
- Waveforms
1 RFO
0.5V/div. 0.2µs/div.
Normal mode: play
REFOUT→
1 CH1: RFO
1V/div.
2 CH2: MIRR
5V/div.
Test mode: Tracking open
TE
→ L 13942296513
GND
6 CH1: FEY
0.5V/div.
7 CH2: XSI
2V/div.
Normal mode: Focus close
REFOUT→
REFOUT→
GND →
6 CH1: FEY
0.1V/div.
3 CH2: FIN
0.2V/div.
Normal mode: Play
REFOUT→
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REFOUT→
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22
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Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
REFOUT:2.5V
1 RFO
Test mode
REFOUT→
3 CH1: FIN
0.5ms/div.
5 CH2: FOK
Normal mode: Focus close
REFOUT→
REFOUT→
GND →
8 CH1: TEY
1ms/div.
9 CH2: TIN
Test mode: 32 tracks jump (FWD)
REFOUT→
REFOUT→
3 CH1: FIN
20ms/div.
0 CH2: SIN
Normal mode: Focus close
REFOUT→
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REFOUT→
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2 9
8
1 CH1: RFO
0.5V/div. 0.5µs/div.
2 CH2: MIRR
Normal mode: The defect part
REFOUT→
REFOUT→
→
GND
0.5V/div. 3 CH1: FIN
0.2s/div.
2V/div. 4 CH2: FOP
REFOUT→
Q Q
3 6 7 1 3 REFOUT→ 1 5
8 CH1: TEY
0.5V/div.
0.5ms/div.
9 CH2: TIN
0.5V/div.
Test mode: Single jump (FWD)
REFOUT→
REFOUT→
0 SIN
0.5V/div.
0.5s/div.
1V/div.
Normal mode: Play
REFOUT→
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.
9 4 2 8
1V/div.
0.5ms/div.
5V/div.
passes 500µs/div.
0.5V/div.
0.2s/div.
2V/div.
Test mode: No disc, Focus close
0 5 8 2 9 9 4
0.5V/div.
0.5ms/div.
0.5V/div.
0.5V/div. 0.1s/div.
m
9 9
2 8 9 9