LG HT306SF – HT306SH36F-S – HT306SH36SUW Home Theater System – Firmware Upgrade _ Power Amp & SMPS (Power Supply) Schematic. USED ICs
HOW TO ENTER SYSTEM INFORMATION
* Enter into SETUP menu with NO Disc in the tray.
* Put on cursor [Highlight] 16:9 wide option of TV aspect in SETUP menu.
* Press follow key in continuous using remote control. 1> 3> 9> 7> 1> 3> 9> ENTER
* Put on cursor [Highlight] 16:9 wide option of TV aspect in SETUP menu.
* Press follow key in continuous using remote control. 1> 3> 9> 7> 1> 3> 9> ENTER
HOW TO UPDATE THE DVD and AUDIO MICOM PROGRAMS
The Whole Sequence
> DVD program download.
> Power cord Out> In.
> Audio micom program download.
> Remote control Pause key‘||’ + ‘1472’ for input options.
> Enter into the system information for check the version, options and check sum.
> Power Off> On.
> Power cord Out> In.
> Audio micom program download.
> Remote control Pause key‘||’ + ‘1472’ for input options.
> Enter into the system information for check the version, options and check sum.
> Power Off> On.
HOW TO UPDATE THE MTK-DVD PROGRAM
* Change the filename to download as “LG_(MODEL NAME).ROM”. [Both Upper and Lower case In filename is possible] Ex.) HT306: “LG_HT306.ROM”
* Copy the file to the formatted USB, and burn it.
* Move to the USB function, and insert the USB to the set. The upgrade information will be shown on the screen.
* Remove the USB, press PLAY key of the remote control.
* Remove and reconnect the power cable when it changes to logo screen from upgrade information. Then the upgrade process is completed.
* Copy the file to the formatted USB, and burn it.
* Move to the USB function, and insert the USB to the set. The upgrade information will be shown on the screen.
* Remove the USB, press PLAY key of the remote control.
* Remove and reconnect the power cable when it changes to logo screen from upgrade information. Then the upgrade process is completed.
HOW TO UPDATE THE AUDIO-MICOM PROGRAM
> Change the filename to download as “(MODEL NAME)_(Version).HEX”. Only upper cases are permitted. Ex.) HT306: "HT306_0809262.HEX"
> Copy the file to the root folder of USB storage.
> Put the USB into the SET, and move to the USB function. Then the upgrade process will be started with the upgrade information.
> If the upgrade process is complete, the set will be power off automatically with “Complete” message.
> Copy the file to the root folder of USB storage.
> Put the USB into the SET, and move to the USB function. Then the upgrade process will be started with the upgrade information.
> If the upgrade process is complete, the set will be power off automatically with “Complete” message.
HOW TO CLEAN THE LENS
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cotton swab should be used, taking care not to distort lens.
Never attempt to disassemble the pick-up.
Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
Spring has excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
POWER Supply & POWER Aamplifier CIRCUIT DIAGRAM [SCHEMATIC]
Power PWB Top & Bottom view
POWER AMP
CLICK ON THE PICTURES TO MAGNIFY