Pioneer AVHP5700DVD - In-Dash 6.5 Monitor DVD Player, Service Manual

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AVH-P5700DVD/EW
128
1 2 3 4
1 2 3 4
C
D
F
A
B
E
Check 4 : Is the video circuit operated normally?
Reproduce DVD-REF-A1 Title 2 Chapters (White 1000IRE)
Monitor the output with the oscilloscope, by setting the COMPO signal to a GND reference.
Set the Trigger mode to the TV trigger, and the Trigger line to line-150.
Composite signal white 100% output waveform
If the result is not satisfactory, check to see if there are any problems with resin flux cored solder and other
defects in the applicable line, vicinity of major parts stated in the above diagram (Circuit Diagram ) and
peripheral components.
COMPO Signal
< Method of Readjusting Video Levels >
If the video composite output is not within the range of rated value, the video level is readjusted in the following
method.
Turn the video level adjustment volume (VR1551) to adjust its level to 1.0 0.02Vpp.
Pedestal Level
Rated value
Color brust
Horizontal periodic signal
PEAK
BOTTOM
When the result is not satisfactory,
adjust the level to 1.0 0.02Vpp.
No.
1
Verification location 1
(Sensing pin)
COMPO
Reference waveform
Waveform 4
Rated value
1.0 0.02Vpp
3
Check 5 : Is SDRAM I/F operated normally?
Reproduce DVD-REF-A1 Title 1.
Check Circuit Diagram
Common to all DVD-V adapted modules
Check the conductivity of both the "Verification location 1"and the "Verification location 2."
If the result is not satisfactory, check to see if there are any problems with the resin flux cored solder, parts and
components, in areas where as problem occurs, for the overall sequence of "output" "input" of the checked
location.
3
No.
1
2
3
4
5
6
7
8
9
10
11
12
Verification location 1
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570
IC1570 25pin
26pin
27pin
60pin
61pin
62pin
63pin
64pin
65pin
66pin
24pin
21pin
Signal name
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
MA11
220pin
217pin
214pin
210pin
212pin
216pin
219pin
227pin
229pin
235pin
228pin
231pin
Verification location 2
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
IC1501
Rated value
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%
56 5%