Pioneer PRO-630HD Service Manual page 82

1
QQ
3 7 63 1515 0
WAVEFORMS and VOLTAGES
A
Note : The encircled numbers denote measuring point in the schematic diagram.
N 1/2
DEFLECTION SERVICE ASSY
• Input signal
Input : INPUT 1 (COMPOSITE)
Video Signal : EIA color-bar
CN501-pin 13 (HDRV)
75
V: 2V/div. H: 5µsec/div.
CN501-pin 10 (HBLK)
76
V: 2V/div. H: 5µsec/div.
B
75
76
Q512 Collector
77
V: 10V/div. H: 5µsec/div.
C
TE
L 13942296513
Q511 Collector
78
V: 200V/div. H: 5µsec/div.
D
Q508 Emitter
79
V: 20V/div. H: 5msec/div.
E
601
(MSPAD401)
IC801 (M5220P)
No Voltage (V)
1 3.9
2 0
www
3 0.6
4 5.0
5 0.1
6 -
F
7 -
8 0
9 12.1
82
1
http://www.xiaoyu163.com
2
CN501 - pin 5 (DF)
80
V: 0.5V/div. H: 5msec/div.
GND
GND
Q701 Emitter
81
V: 200V/div. H: 5msec/div.
GND
Q601 Base (HD)
82
V: 2V/div. H: 5µsec/div.
GND
Q603 Drain
83
V: 100V/div. H: 5µsec/div.
GND
IC502 (NJM4558DXP)
No Voltage (V) No Voltage (V)
1 0 1 5.5
2 0 2 4.0
3 0 3 4.0
x ao
4 -4.9 4
5 1.6 5 5.0
. i
6 1.6 6 5.0
7 0.1 7 5.0
8 5.0 8 12.1
2
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3
Foot of R841
84
V: 1V/div. H: 2msec/div.
GND
Foot of R803
85
V: 1V/div. H: 2msec/div.
GND
Q Q
IC802 - pin 7
3 6 7
86
V: 0.5V/div. H: 2msec/div.
GND
IC802 - pin 5
87
V: 20V/div. H: 2msec/div.
GND
IC802 (LA78045)
No Voltage (V)
1 0
2 18.9
3 -18.7
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0 4 -20.0
y
5 0.7
6 18.6
7 0
PRO-730HD
3
4
2 9 9 4
8
GND
GND
1 3 1 5 0 5 8 2 9
GND
GND
m
co
.
4
2 8
9 9
9 4 2 8 9 9