Pioneer PD-F958 Service Manual page 16

PD-F958, PD-F908
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Waveforms (
H ,H
H
, J
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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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 3: FOCUS-IN (*2) MODE
(FODR)
1V/div 200msec/div
– VC
5
IC202-Pin 3: PLAY MODE (FODR)
1V/div 1msec/div
– VC
6
IC202-Pin 4: PLAY MODE (TRDR)
500mV/div 1msec/div
– VC
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8
∗1 50T-JUMP: After switching to the pause mode, press
∗2 FOCUS-IN: Press the play key without loading a disc.
6'
– VC
7
– GND
Q Q
3 6 7 1 3
7
– GND
8
– GND
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2 9 9 4 2 8
the manual search key.
IC202-Pin 4: 50T - JUMP (*1) MODE
(TRDR)
500mV/div 1msec/div
IC203-Pin 3: PLAY MODE (SPDR)
1V/div 50msec/div
1 5 0 5 8 2 9 9 4
IC203-Pin 3: TRACK SEARCH MODE
(SPDR)
2V/div 50msec/div
IC202-Pin 9: PLAY MODE (CADR)
0.2V/div 2sec/div
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9 9
– GND
– GND
2 8 9 9
– GND
– GND