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Cases of the SMPS Protection.
If there is over current at the AMP IC (Speaker Wire Short)
If temperature of the AMP IC is over 150°C.
There is no power supply for AMP.
AMP Pre-Inspection relating to Power Protection
If you think, there are problems at the AMP PART, you can check the PCB without disassemble the set. (Caution: Do not connect the power cord during bellow check)
If Measured Resistance is very different from above numbers. There is a Problem. à AMP PART Problem.
Micom Reset
During STANDBY mode, push the “STOP” button 5 Second. If VFD blinking, reset is finished.
Micom Update (Only for Flash Micom)
Method 1) MAIN PCB UTCN1 for update JIG. To update Micom, it need Computer, Rom Writer, USB Cables.
Method 2) Insert USB Memory, and play. “Update” will be displayed. Set will be power off when finish.
Micom & MPEG Version Check
Power On.
In VSB Function. “NO USB” status.
Push the number NEXT for 5 seconds, check the Micom version.
Push the number PREVIOUS for 5 seconds, check the MPEG version.
MPEG Update Method
Prepare Rom file at USB Memory.
Insert USB Memory, and play. “Update” will be displayed and listen. Set will be power off à on.
The disc is automatically ejected. (If you use USB memory, detach USB memory.)
MPEG Reset
During “No Disc” displayed, push the stop button 5 seconds. After displayed “INITIALIZE” set will power off automatically.