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7.1.3 TROUBLE SHOOTING � For RLTXJ only
When set Voltage selector to 120V in the RLTXJ model and had supplied voltage doubler (240V) wrong, and power did not enter normal.
Start
A
Does a primary side fuse (FU1: ACIN assy) blow out? No
Yes
Replace the fuse.
B
Remove the two connectors (CN104 and CN105) from the POWER Assy.
Turn the power ON
Yes
Are the following voltages normal? No
� CN104 - pin 5: +15V, pin 6: -15V � CN105 - pin 5: +15V, pin 6: -15V
C
Are the protector ICs (IC119. IC120, IC112, IC113, IC122-IC125) on the POWER Assy broken? No
Yes
Replace the ICs of the same rating.
Replace the diodes D117-D120 and IC101 on the POWER Assy.
D
No
Are the following voltages normal? Yes
� CN104 - pin 5: +15V, pin 6: -15V � CN105 - pin 5: +15V, pin 6: -15V
Connect the two connectors (CN104 and CN105) on the POWER Assy from the BUS1 and BUS2 Assys.
E
Turn the power ON
End
F
DJM-1000
5 6 7 8
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