Waveforms - Pioneer HD-V9000 Service Manual

1

10.26 WAVEFORMS

QQ
3 7 63 1515 0
A
COMPOSITE
A
12/18 DECM SERVICE ASSY
C656DT 0-7
IC3001 (2-9)
SCALER
8
C656HS
(14)
9
C656VS
(15)
10
C656CLK (27 MHz)
(48)
B
Composite Diagram
Gain
ENCODER IC
1 2
LPF
[dB] OUT
C
LEVEL
[Vp-p]
TE
L 13942296513
NOTE:
• The encircled numbers denote measuring point.
• The level of the diagram and signal waveforms show at the "100% Color-Bar" video playback.
JA5001 - pin 1
7
V: 0.5 V/div H: 10 μsec/div
D
E
www
F
122
1
http://www.xiaoyu163.com
2
IC5002 1
LPF
ADV7172KSTZ
(35)
Video signal
SD VIDEO ENCODER
6dB-AMP IC
3 4
Buffer
OUT
IC5002 - pin 14
8
V: 1.0 V/div H: 10 μsec/div
GND
x ao
y
. i
2
http://www.xiaoyu163.com
3
8
IC5004
2 3
MM1504XN
Buffer
(6)
6dB AMP
(2)
4
CLAMP
(15)
IC5005
PDC084B
CHARA. GEN
CHARA. GEN IC MUTW SW IC
5 6 7
OUT OUT
* 1.0 (75 Ω exists)
Q Q
3 6 7 1 3
IC5002 - pin 15
9
V: 1.0 V/div H: 2 msec/div
GND
u163
.
HD-V9000
3
4
2 9 9 4 2 8
COMPOSITE
IC5006
5 6
MM1507XN
(13) (4) (2) (1)
VIDEO MUTE SW
CV OUT (75 Ω
termination
nothing)
1 5 0 5 8 2 9
IC5002 - pin 48
10
V: 1.0 V/div H: 10 nsec/div
GND
m
co
4
9 9
OUT
JA5001
7
9 4 2 8 9 9
GND