Denon AVR-3808CI Service Manual page 45

Q Q
3 7 6 3 1 5 1 5 0
Checking the operation
Set the surround mode to "7ch STEREO".
The analog circuitry (from the D/A
Is the analog signals being output to YES
converter on) or system microproces-
CW157 pins odd number?
sor is defective.
NO
YES s the clock being input to 302
Is the data being input to IC302 305 pin 3?
pin 3?
NO IC152 PLLIC part is defective.
YES
Is the data being output from DSP2?
(H02 D02)
NO
Is the data being input to DSP2? YES IC251 DSP2 (ADSP-21367) part is
(K02 E02) defective.
NO
Is the data being output from DSP1? YES
(F14 P10)
NO
Is the data being input to DSP1? YES IC201 DSP1 (ADSP-213676) part is
defective.
(F14 P12)
Check one of the following, according to the input signal.
T E
L 1 3 9 4 2 2 9 6 5 1 3
For the analog input For the HDMI multi channel input
A B
w w w
.
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305 YES
302 305 D/A conveter part is defective.
NO
IC151 PLD (EPM570) or IC951 micropro-
cessor (M3062) part is defective.
For inputs other than "HDMI 2ch", the left
C
x a o u 1 6 3
y
i
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8 9
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Q Q
3 7 6 3 1 5 1
c o
.
45
AVR-3808CI / AVR-3808 / AVC-3808
2 4 9 8 2
YES
NO
5 0 8 9 2 4 9 8 2
m
9 9
9 9