Pioneer pdr-w739 Service Manual page 36

PDR-W739
WAVEFORMS OF MAIN ASSY
Note :
The encircled numbers denote measuring point in the schematic diagram.
H 1/3
MAIN ASSY
IC1402 - pin 35 (SYSO)
1
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
IC1402 - pin 36 (SYSI)
2
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
IC1402 - pin 39 (SREQ)
3
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
IC1402 - pin 38 (SACK)
4
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
IC1402 - pin 37 (SCK)
5
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
36
CN1402 - pin 20 (FLDI)
6
V: 2V/div., H: 1msec/div.
(CD PLAY at CD side)
GND
CN1402 - pin 19 (FLCL)
7
V: 2V/div., H: 1msec/div.
(CD PLAY at 3CD side)
GND
GND
GND
GND
H 2/3
MAIN ASSY
CN1503 - pin 2 (CDRMCK)
8
V: 2V/div., H: 50nsec/div.
(STOP)
GND
IC803 - pin 2 (DIN)
9
V: 2V/div., H: 0.2µsec/div.
(CD → CD-R Double-speed
interrnal analog copy)
GND
IC803 - pin 3 (BCK IN)
10
V: 2V/div., H: 0.2µsec/div.
(CD → CD-R Double-speed
interrnal analog copy)
IC803 - pin 5 (XTI)
11
V: 2V/div., H: 50nsec/div.
(CD PLAY at 3CD side)
IC801 - pin 5 (XTI)
12
-1
V: 2V/div., H: 50nsec/div.
(CD PLAY at 3CD side)
IC801 - pin 5 (XTI)
12
-2
V: 2V/div., H: 50nsec/div.
(CD → CD-R Double-speed
copy)
GND
IC801 - pin 27 (DAC CLK)
13
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
GND
IC801 - pin 26 (DAC data)
14
V: 2V/div., H: 5msec/div.
(CD PLAY at 3CD side)
GND
IC802 - pin 11 (MCLK)
15
V: 2V/div., H: 50nsec/div.
(CD PLAY at 3CD side)
GND
GND
GND
GND
GND
GND