TROUBLESHOOTING GUIDE TS1
A. Assembly procedures
Follow the assembly drawing AS1, remove the cover and keep all parts for further assembly.
1. Remove SC1 x 4
2. Remove SC2
3. Disconnect CN8
4. Remove PN1 lower cover
5. Disconnect CN2, CN3, CN5 and CN7.
6. Remove SC3 X 4 and SC4 X 2.
7. Remove PN2 top cover, to allow inspection on component side.
8. Remove SC5.
9. Remove PN3 bottom cover, to allow checking the component from solder side.
10. Hold the PC board carefully. To prevent damage of the components along the PC
board side, do not bend the left and right hand side heatsink.
11. Remove the SC6 X2 and SC7 X 2 screws from heatsink only when the transistor
or diode is required to be changing.
12. Remove SC8 and NU1.
Symptom
Possible cause and solution
AC input is normal but
the LED display are off.
Check input fuse F2.
If F2 fuse blown up then
follow the checkpoints.
1. Check Q1~Q6.
2. Check R8, R12, R35~R36.
3. Check D3, D4, D6 and D33.
4. Check C3~C4.
5.After verified above components are in good condition,
then re-install F2 fuse of same type and rating.
AC input and the LED
display are normal but no
DC output, check fuse F1
if blown up.
1. Check D7, D8 and D17.
2. After verified above components are in good condition,
then re-install the F1 fuse of same type and rating.
AC input and DC output
are normal but LED
display and charging
mode are abnormal.
1. Check CN2, CN3 and CN7 connection.
2. Check Q9 and Q10.
3. Check D34~D38.
4. Replace above component if necessary.
Cooling fan is not working
if the device is getting
hot..
1. Check CN5 connection.
2. Check Q14.
3. Replace above component if necessary.
