Pin 37 to 72. Lots of fluctuation
37 2.69-3.17
38 3.17
39 3.17
40 0
41 0.96
42 3.17
43 0.82
44 1.14
45 0.8-0
46 1.0-0
47 0
48 0.88-0
49 1.0-0
50 3.17
51 3.17-0
52 0
53 1.14
54 0
55 1.45-0
56 3.17-0
57 1.15
58 0
59 0-0.5
60 3.17
61 0-0.3
62 0
63 0-0.9
64 3.17-0
65 1.14
66 0
67 3.17
68 3.17
69 0
70 1.6-1.59
71 3.17
72 0
Measuring ALL values of a dsp chip are not important in your case.
When you troubleshoot a hdmi board, all voltages MUST
measure by an oscilloscope. This is a guideline from
service dept. Why see pm.
What you need is an oscilloscope to measure if the signal
generated from the main CPU is ok. This signal tells the
DSP to work properly. See you tube I sent to you via pm before.
You must make sure this signal is present & ok (comparing you
tube film); otherwise even you replace the DSP chip, it will
not work properly. This explains why HDMI board is the hardest
part in troubleshooting an AV-amp. Remember measure voltages by
an oscilloscope. JUST to measure ALL VDD points is enough.
Bad soldering joints in HDMI board hardly found, trust me.
Tell you a story when I troubleshooted
a HDMI board of onkyo in 2014. This story
told you this signal was so important.
See pm.
How to measure the signal. See pm
No need to measure all voltages of a dsp chip
just measure the voltages supplied to dsp chip VDDs
Basically ALL VDDs connected to a small capacitors,
why connected to a small cap see pm.
I do not have time to help you to check voltages ALL, just DIY.
comparing with the marked ones on service manual, just 3.3V
Ask your friends,old classmates, colleagues,neighborhood
or university profs. (if you studied science) to borrow
an oscilloscope of about (10-20MHz) to measure that signal.
Once this signal is ok, you can fix this amp.
If everyone in your country HATES you,
sorry, you are
unable to borrow an oscilloscope.
LOL. Call friends to
help you!!!
No oscilloscope, no talk.