service information for eeprom ic setting - Jordans Manuals
service information for eeprom ic setting - Jordans Manuals
service information for eeprom ic setting - Jordans Manuals
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ELECTRICAL TROUBLESHOOTING GUIDE<br />
1. POWER SUPPLY ON SMPS BOARD<br />
HDR PART<br />
No 5.3VA<br />
YES<br />
Is the F101 Normal?<br />
NO<br />
Replace the F101<br />
(Use the same Fuse)<br />
YES<br />
Is the BD101 Normal?<br />
NO<br />
Replace the BD101<br />
YES<br />
Is the R101 Normal?<br />
NO<br />
Replace the R101<br />
YES<br />
Is the Vcc (13V - 27V)<br />
supplied to IC101 Pin2?<br />
NO<br />
Is the D102 normal?<br />
NO<br />
Check or Replace the<br />
D102<br />
YES<br />
Is the D128 normal?<br />
NO<br />
Replace the D128<br />
YES<br />
Is there about 2.5V at the<br />
IC103 Pin1?<br />
NO<br />
Replace the IC103<br />
YES<br />
Is the IC102 normal?<br />
NO<br />
Replace the IC102<br />
YES<br />
Is the D121 Normal?<br />
NO<br />
Replace the D121<br />
YES<br />
Is the D122 Normal?<br />
NO<br />
Replace the D122<br />
YES<br />
Is the D125 Normal?<br />
NO<br />
Replace the D125<br />
YES<br />
Is the D124 Normal?<br />
NO<br />
Replace the D124<br />
YES<br />
Is the D127 Normal?<br />
NO<br />
Replace the D127<br />
YES<br />
Is the D126 Normal?<br />
NO<br />
Replace the D126<br />
YES<br />
Power Line of I/O PCB<br />
is short<br />
3-2
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