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Doubted for buy this manual as it is my first order here and at not have cover image, I assumed would haven't. However, within 24 hs, already possessed the link to download it. The manual are scanned correctly and have all what is needed. Includes adjustments and diagrams of all circuits. Very satisfied.
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Good quality service manual.The scheme is on A3 format and very readable.Thank you
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Very good service-manual with clear electrical diagrams. Thanks you.
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the manual is in quite good quality and it's in pdf. manual was send in less then 6h.
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Step 7: 1st DSP f
CN401 (Pin 20) RESET
j
CN401 (Pin 16)
For the following diagnosis, a digital oscilloscope must be used. SPICLK
A
Is the logic of RST_1 "H" ?
No
Check the output from the DIGITAL MOTHER Assy.
w
Yes R139
Is the clock signal output while the voltage at SPIDS_1 is "L"?
No
Check the output from the DIGITAL MOTHER Assy.
y
Yes R144
Is the logic of RST_1 "H" ? Yes
No
Check the resistors and patterns in the path.
Is the clock signal output while the voltage at SPIDS_1 is "L"?
No
Check the resistors and patterns in the path.
B
Is the logic of RST_1 maintained at "H"? (Does it fall to become "L" periodically?)
k
No It is likely a boot error. (It is very difficult to diagnose which peripheral part of the DSP is in failure.)
Yes CN401 (Pin 19) MOSI
g
Yes R134 REQ_1
Is the clock signal output while the voltage at SPIDS_1 is "L"?
No
Check the output from the DIGITAL MOTHER Assy.
C
z
Does the logic become "H" for a moment when the input stream is changed? No The 1st DSP is in failure. Replace it.
Yes R146
g
Yes CN401 (Pin 21)
Is the clock signal output while the voltage at SPIDS_1 is "L"?
No
Check the resistors and patterns in the path.
AA
Does the logic become "H" for a moment when the input stream is changed? No Check the resistors and patterns in the path.
Yes R142 MISO
h
Yes CN401 (Pin 17) SPIDS_1
Is the clock signal output while the voltage at SPIDS_1 is "L"?
D
No The 1st DSP is in failure. Replace it.
i
Does the logic become "L" for a moment when the input stream is changed? No Check the output from the DIGITAL MOTHER Assy.
Yes CN401 (Pin 18)
x
Yes R137
Is the clock signal output while the voltage at SPIDS_1 is "L"? Yes
No
Check the resistors and patterns in the path.
E
Does the logic become "L" for a moment when the input stream is changed? Yes
No
Check the resistors and patterns in the path.
It is very difficult to diagnose which part is in failure.
F
VSX-LX70
5 6 7 8
35
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