Denon AVR-1311 User Manual

32

Is the ON/STANDBY 
indicator on the front panel 
fl ashing red?

Does the power turn on 
when the POWER switch is 
turned off then back on?

Check the primary ciruitry 
parts including the POWER 
switch(for poor contacts, 
etc.), and replace any 
defective parts.

Check the microprocessor 
periphery circuitry and 
replace any degective parts.

Check the circuitry and parts 
from BN43 on the MAIN 
B'd to the microprocessor 
for damage and short-
circuits,and replace any 
defective parts.

Is a DC 5V voltage being 
supplied from the MAIN B'd 
to the microprocessors?

Is a DC5V voltage output 
when the cord supplying the 
power from the MAIN B'd to 
the microprocessor(BN43) 
is unplugged?

Is the fuse blown?

Refer to Fuse is blown.

Are there any incomplete 
connections in the 
connectors connecting 
between the various circuit 
boards?

Correct the short 
circuit between the 
speaker and ground.

Connect the connectors 
property.

Is there a short circuit 
between the speaker 
terminals and the ground?

Check for damage in the 
power amplifi er circuitry 
parts and replace any 
defective parts.

Check the parts from 
IC45 to the primary 
circuitry and replace 
any defective parts.

Check for leaks or short 
circuits in the primary side 
parts,and replace any 
defective parts.

Check for short circuits in the 
rectifi er diodes and circuitry of 
the secondary side rectifying 
circuits,and replace any 
defective parts.

After repairing, also replace the fuse.

Check for short circuits in 
the power stabilizer unit's 
regulator output terminal and 
the ground,and replace any 
defective parts.