Pd-M427, Pd - Pioneer PD-M427 Service Manual

PD-M427, PD-M407
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Waveforms (Mother Board Assy)
Note: The encircled numbers denote measuring point in the schematic diagram.
2
TP1-Pin 1: PLAY MODE (RF)
500mV/div 500nsec/div
2 TP1-Pin 1: TRACK SEARCH MODE
(RF)
500 mV/div 200 µsec/div
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L 13942296513
3
TP1-Pin 6: PLAY MODE (FOER)
100mV/div 10msec/div
4
TP1-Pin 2: PLAY MODE (TRER)
200mV/div 1msec/div
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4' TP1-Pin 2: 50T - JUMP (*1) MODE
(TRER)
200mV/div 1msec/div
– VC
5
IC202-Pin 4: FOCUS-IN (*2) MODE
(FODR)
1V/div 200msec/div
– VC
5
IC202-Pin 4: PLAY MODE (FODR)
1V/div 1msec/div
– VC
6
IC202-Pin 3: PLAY MODE (TRDR)
500mV/div 1msec/div
– VC
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2 9
8
∗1 50T-JUMP: After switching to the pause mode, press
the manual search key.
∗2 FOCUS-IN: Press the play key without loading a disc.
6' IC202-Pin 3: 50T - JUMP (*1) MODE
(TRDR)
500mV/div 1msec/div
– VC
7 IC201-Pin 9: PLAY MODE (SPDR)
1V/div 50msec/div
– GND
Q Q
3 6 7 1 3 1 5
7
IC201-Pin 9: TRACK SEARCH MODE
(SPDR)
2V/div 50msec/div
– GND
8
IC202-Pin 9: PLAY MODE (CADR)
0.2V/div 2sec/div
– GND
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9 4 2 8
– GND
– GND
0 5 8 2 9 9 4 2 8
– GND
m
– GND
9 9
9 9