Samsung Mini-Compact System MX-F730 - Protection circuits, Micom update, Region setting, Schematic diagrams and more

 

Power
2.0 ch : 550 W Total RMS - 6000 W PMPO
IR Amp

Compatible - DVD - Divx (Only MX-F730D), MP3, CD or CD-R, RW, WMA

Total Output Power: 550 Watts (MAX)

Troubleshooting table for No Power and No Output

Measures to be taken when the Protection Circuit operates

Operation of Power Block Protection Circuit

Cases of the SMPS Protection.
1) If there is over current at the AMP IC. (Speaker Wire Short)
2) If temperature of the AMP IC is over 150 ℃.
3) There is no power supply for amp.

Check AMP in Power Protection

If you think, there are problems at the AMP Part, you can check the PCB without disassembling the set.

Operation of Power Block Protection Circuit

Cases of the SMPS Protection.
1) If there is over current at the AMP IC. (Speaker Wire Short)
2) If temperature of the AMP IC is over 150 ℃.
3) There is no power supply for amp.

Check AMP in Power Protection

If you think, there are problems at the AMP Part, you can check the PCB without disassembling the set.

MICOM, MPEG Initialization & Update

MICOM Reset
• During STANDBY mode, push the ‘STOP” Button 5 Seconds. 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.
• Method 3) Insert Update DISC, and play. “Update” will be displayed. Set will be power off when finish.
Micom & MPEG Version Check
1) Power On.
2) CD open status.
3) Push the number NEXT for 5 seconds, check the MICOM version.
4) Push the number PREVIOUS for 5 seconds, check the MPEG version.

 MPEG Update
1) Insert USB Memory or Update DISC which have Update file, and play. “Update” will be displayed.
2) When finish the Set will be power off → on automatically.
3) And then the Deck is automatically open.
MPEG Reset
1) During “No Disc” Displayed, push the stop Button 5 seconds. After displayed “INITIALIZE” set will power off automatically.

Buyer-Region Code Setting Method

The inserting method of Region Code after replacing the Main PBA

NOTE
When replacing the Main PBA and System Micom should be inserted the region code.
The set is not working properly if you don't insert the region code.
The region code is inserted by the remote control.

During “AUX” status.
MX-F730 or F730CB : Push the “ENTER” button 10 Second.
MX-F730D : Push the “D” button (blue key) 10 Second

2) When displayed ‘TEST”, import 46 to set the buyer.

3) When displayed ‘– – –’, import the buyer code.  The buyer setting code can find in the table named “MX-F7** Option - Table”.

4) It will show the buyer that you set up. Then the buyer setting is succeeded.

Region code table

Wiring diagram

Pin connection

Pin connection

SMPS boards 1 and 2

Main 1,2,3,4,5 and front