TROUBLESHOOTING GUIDE | Appendix |
1.NO POWER
L801
FB01
125V 5A 
Check
F801(125V/5A)
R807
+
C804
Check
Waveform
L802
Check
R801(10W,1)
C803
R801
C802
D801
T801
#2 |
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| +133V |
#3 | #12 |
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| |
#4 | #13 | +45V |
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| #14 |
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| D804 |
| R862 | OCP |
C818 |
| + |
| R822 | + | |
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| C819 |
| |
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| |
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| R814 | R813 |
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| |
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| +133V | |
+ |
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| + |
| |
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| L805 |
| |
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| C814 |
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| C820 |
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| |
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| Check |
C813 |
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| Voltage | ||
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| D807 |
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| Check |
L807 |
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| voltage | ||
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| C817 |
|
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| +45V | |
L806 |
| D808 | + |
|
| +12V |
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| (Sound) | |
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| C815 |
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| R817 | Check |
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| Voltage | |
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| C832 |
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| |
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| |
| Drain |
| Source |
| /OCL |
MR2540 | Vin |
Vcc |
4 5 6 7
C809
R891
D810 
R805
R892
#9 | +13.5V |
#8 |
|
#10 | +12V |
#7 |
|
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| Q805 |
| +5V | |
|
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|
| ||
D813 | + | R818 | + | ||
C812 | |||||
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| C706 | ||
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|
D812
R870 R879 R878
I801 |
+
C807
#11 |
R869
GND |
F / B
Z / C
1 2 3
D802
C892 R893
| R872 | C871 |
8 | 1 | I803 |
| ||
I804 |
|
|
LTV817 | D871 | R868 |
C891
D811
D804
7 | I804 | 2 |
|
| R802 |
| |
| LTV827 | R874 | |
6 | 3 |
| |
|
| ||
| I805 | D806 | R873 |
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| |
5 | LTV817 | 4 | Q871 |
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R827 Q873 R877 (Micom Power on/off)
PWR on : H
R876 | PWR off : L |
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