18
7 Troubleshooting Guide
7.1.
No Power (No LED D No Response)
Press Power Button of Unit
or Remote Control to Turn
ON the Unit
Change
SMPS
PCB
Check Fuse
(F1001, F1401,
F14501) =0 ohm
No
Check C1403
& measured
200V or more
Yes
No
No
Yes
No
1
2
Yes
No
No
Yes
Check diode
(D1601)
Me5V
Check C1224
& measured
400V or more
No
Check diode
D1702 Measured
+18V r more
Check IC2107
Measured
1.5V at Pin 3
6
Change
SMPS
PCB
Change
SMPS
PCB
Change
SMPS
PCB
Change
SMPS
PCB
Change
Main
PCB
Check
IC2108
Measured
3.3V at Pin 2
Change
Main
PCB
7
Yes
Yes
If No Display
on FL Panel
Change
Panel
(FL) PCB
No
3
4
No Display on FL Panel
End
Check diode D1703 &
D1705 measured
+40V
Yes
No
Yes
Change
SMPS
PCB
5
jomi
Summary of Contents for SA-AKX710PU
Page 11: ...11 5 Location of Controls and Components 5 1 Remote Control Key Button Operation j o m i ...
Page 19: ...19 7 1 1 Check Point SMPS P C B 7 1 2 Check Point Main P C B 4 5 1 1 2 3 1 7 6 j o m i ...
Page 21: ...21 7 2 1 Check Point Main P C B 6 1 2 j o m i ...
Page 23: ...23 7 3 1 Check Point Main P C B 1 2 4 3 j o m i ...
Page 31: ...31 7 7 1 Check Point Main P C B 1 3 4 5 6 7 j o m i ...
Page 33: ...33 7 8 1 Check Point Main P C B 1 3 4 5 6 7 j o m i ...
Page 54: ...54 j o m i ...
Page 107: ...107 MMH1804 j o m i ...