TROUBLE SHOOTING
1. POWER
1.1.  Power not turn on
YES YES
YES
NO
NO
YES
NO
NO
0.6V or -0.6V
When the power turned on, 
does the ON/STANDBY 
indicator on the front panel 
ashing green?
Is the fuse blown?
About 10 seconds later, 
does the ON/STANDBY 
indicator on the front panel 
turn lighting green ?
Check voltage of N3405 (1-
5PIN) of HDMI B'D while the 
ON/STANDBY indicator is 
ashing green.
Pull out connector (CP4000) 
of SPK BD, and check "3.5. 
Errors checking mode". 
(Refer to 46 page.)
Power not turn on.
Is the fuse blown?
When the power turned on, 
does the ON/STANDBY 
indicator on the front panel 
ashing red?
Is a DC 5V voltage being 
supplied from the SMPS B'D 
(CN4141) to the HDMI B'D?
Refer to 1.2.Fuse is blown.
Refer to 1.2. Fuse is blown.
Check circuitry and parts from N3405 on 
the HDMI B'D to the µ-com for damage 
and shortcircuits, and replace any 
defective parts.
Check "3.5. Errors 
checking mode". 
(Refer to 46 
page.)
Are there any incomplete 
connections in the connectors 
connecting between the 
various circuit boards?
Is a DC 5V voltage output 
when the cord supplying the 
power from the SMPS B'D 
to the HDMI B'D (N3601) is 
unplugged?
Check µ-com periphery 
circuitry of HDMI B'D and 
replace any defective parts.
Check circuitry and parts from 
N3601 on the HDMI B'D to the 
µ-com power supply for damage 
and shortcircuits, and replace 
any defective parts.
Connect the connectors properly.
To troubleshooting 
6. SMPS. 
(Refer to 95  
page.)
NO
YES
YES
0V
YES
NO
NO NO
Check for leaks or short 
circuits in the primary side 
parts, and replace any 
defective parts.
Fuse is blown
Check for short circuits in the 
rectier 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.
1.2.  Fuse is blown
YES
82