14
1
2
3
4
1
2
3
4
C
D
F
A
B
E
PD-217
TP1-Pin 1: PLAY MODE (RF)
500mV/div 500nsec/div
IC202-Pin 9: PLAY MODE (CADR)
0.2V/div 2sec/div
2
2
5
5
7
7
8
6
4
3
6'
4'
TP1-Pin 1: TRACK SEARCH MODE
(RF)
500 mV/div 200
µ
sec/div
TP1-Pin 6: PLAY MODE (FOER)
100mV/div 10msec/div
TP1-Pin 2: PLAY MODE (TRER)
200mV/div 1msec/div
TP1-Pin 2: 50T - JUMP (*1) MODE
(TRER)
200mV/div 1msec/div
IC202-Pin 4: FOCUS-IN (*2) MODE
(FODR)
1V/div 200msec/div
IC202-Pin 4: PLAY MODE (FODR)
1V/div 1msec/div
IC202-Pin 3: PLAY MODE (TRDR)
500mV/div 1msec/div
IC202-Pin 3: 50T - JUMP (*1) MODE
(TRDR)
500mV/div 1msec/div
IC201-Pin 9: PLAY MODE (SPDR)
1V/div 50msec/div
IC201-Pin 9: TRACK SEARCH MODE
(SPDR)
2V/div 50msec/div
– VC
– VC
– VC
– VC
– VC
– GND
– GND
– GND
– GND
– GND
– GND
– GND
B
Waveforms (Mother Board Assy)
Note: The encircled numbers denote measuring point in the schematic diagram.
*
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.
3.2 WAVEFORMS MOTHER BOARD ASSY
